From 24eff2e01236a3e9a0db0cf49835ca3aa5a7399a Mon Sep 17 00:00:00 2001
From: Niels Ulrik Andersen <niels@myplace.dk>
Date: Fri, 16 Nov 2018 14:36:49 +0100
Subject: [PATCH 1/8] Make load() return a promise

---
 index.js          |   18 +-
 package-lock.json | 2854 ++++++++++++++++++++++++++++++++++++++++++---
 package.json      |    3 +-
 test/_spec.js     |   47 +-
 4 files changed, 2768 insertions(+), 154 deletions(-)

diff --git a/index.js b/index.js
index 05fe146..202f38a 100644
--- a/index.js
+++ b/index.js
@@ -118,7 +118,7 @@ class NodeTestHelper extends EventEmitter {
         }
     }
 
-    load(testNode, testFlow, testCredentials, cb) {
+    async load(testNode, testFlow, testCredentials, cb) {
         const log = this._log;
         const logSpy = this._logSpy = this._sandbox.spy(log, 'log');
         logSpy.FATAL = log.FATAL;
@@ -147,6 +147,10 @@ class NodeTestHelper extends EventEmitter {
 
         if (typeof testCredentials === 'function') {
             cb = testCredentials;
+            testCredentials = null;
+        }
+
+        if (testCredentials == null) {
             testCredentials = {};
         }
 
@@ -189,12 +193,12 @@ class NodeTestHelper extends EventEmitter {
             testNode(red);
         }
 
-        redNodes.loadFlows()
-            .then(() => {
-                redNodes.startFlows();
-                should.deepEqual(testFlow, redNodes.getFlows().flows);
-                cb();
-            });
+        await redNodes.loadFlows();
+        redNodes.startFlows();
+        should.deepEqual(testFlow, redNodes.getFlows().flows);
+        if (typeof cb === 'function') {
+            cb();
+        }
     }
 
     unload() {
diff --git a/package-lock.json b/package-lock.json
index f5896dc..37d72de 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -12,55 +12,223 @@
         "samsam": "1.3.0"
       }
     },
+    "abbrev": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.1.1.tgz",
+      "integrity": "sha512-nne9/IiQ/hzIhY6pdDnbBtz7DjPTKrY00P/zvPSm5pOFkl6xuGrGnXn/VtTNNfNtAfZ9/1RtehkszU9qcTii0Q==",
+      "dev": true
+    },
     "accepts": {
       "version": "1.3.5",
       "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.5.tgz",
       "integrity": "sha1-63d99gEXI6OxTopywIBcjoZ0a9I=",
       "requires": {
-        "mime-types": "~2.1.18",
+        "mime-types": "2.1.18",
         "negotiator": "0.6.1"
       }
     },
+    "addressparser": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/addressparser/-/addressparser-1.0.1.tgz",
+      "integrity": "sha1-R6++GiqSYhkdtoOOT9HTm0CCF0Y=",
+      "dev": true
+    },
+    "ajv": {
+      "version": "6.5.5",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.5.5.tgz",
+      "integrity": "sha512-7q7gtRQDJSyuEHjuVgHoUa2VuemFiCMrfQc9Tc08XTAc4Zj/5U1buQJ0HU6i7fKjXU09SVgSmxa4sLvuvS8Iyg==",
+      "dev": true,
+      "requires": {
+        "fast-deep-equal": "2.0.1",
+        "fast-json-stable-stringify": "2.0.0",
+        "json-schema-traverse": "0.4.1",
+        "uri-js": "4.2.2"
+      }
+    },
+    "ansi-regex": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz",
+      "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8=",
+      "dev": true
+    },
+    "append-field": {
+      "version": "0.1.0",
+      "resolved": "https://registry.npmjs.org/append-field/-/append-field-0.1.0.tgz",
+      "integrity": "sha1-bdxY+gg8e8VF08WZWygwzCNm1Eo=",
+      "dev": true
+    },
+    "aproba": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/aproba/-/aproba-1.2.0.tgz",
+      "integrity": "sha512-Y9J6ZjXtoYh8RnXVCMOU/ttDmk1aBjunq9vO0ta5x85WDQiQfUF9sIPBITdbiiIVcBo03Hi3jMxigBtsddlXRw==",
+      "dev": true,
+      "optional": true
+    },
+    "are-we-there-yet": {
+      "version": "1.1.5",
+      "resolved": "https://registry.npmjs.org/are-we-there-yet/-/are-we-there-yet-1.1.5.tgz",
+      "integrity": "sha512-5hYdAkZlcG8tOLujVDTgCT+uPX0VnpAH28gWsLfzpXYm7wP6mp5Q/gYyR7YQ0cKVJcXJnl3j2kpBan13PtQf6w==",
+      "dev": true,
+      "optional": true,
+      "requires": {
+        "delegates": "1.0.0",
+        "readable-stream": "2.3.5"
+      }
+    },
+    "argparse": {
+      "version": "1.0.10",
+      "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.10.tgz",
+      "integrity": "sha512-o5Roy6tNG4SL/FOkCAN6RzjiakZS25RLYFrcMttJqbdd8BWrnA+fGz57iN5Pb06pvBGvl5gQ0B48dJlslXvoTg==",
+      "dev": true,
+      "requires": {
+        "sprintf-js": "1.0.3"
+      }
+    },
     "array-flatten": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz",
       "integrity": "sha1-ml9pkFGx5wczKPKgCJaLZOopVdI="
     },
+    "array-indexofobject": {
+      "version": "0.0.1",
+      "resolved": "https://registry.npmjs.org/array-indexofobject/-/array-indexofobject-0.0.1.tgz",
+      "integrity": "sha1-qqEo5iybPDWAlFaMIZ/2T+SJ1Co=",
+      "dev": true
+    },
+    "asn1": {
+      "version": "0.2.4",
+      "resolved": "https://registry.npmjs.org/asn1/-/asn1-0.2.4.tgz",
+      "integrity": "sha512-jxwzQpLQjSmWXgwaCZE9Nz+glAG01yF1QnWgbhGwHI5A6FRIEY6IVqtHhIepHqI7/kyEyQEagBC5mBEFlIYvdg==",
+      "dev": true,
+      "requires": {
+        "safer-buffer": "2.1.2"
+      }
+    },
+    "assert-plus": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/assert-plus/-/assert-plus-1.0.0.tgz",
+      "integrity": "sha1-8S4PPF13sLHN2RRpQuTpbB5N1SU=",
+      "dev": true
+    },
+    "async": {
+      "version": "0.1.22",
+      "resolved": "http://registry.npmjs.org/async/-/async-0.1.22.tgz",
+      "integrity": "sha1-D8GqoIig4+8Ovi2IMbqw3PiEUGE=",
+      "dev": true
+    },
+    "async-limiter": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/async-limiter/-/async-limiter-1.0.0.tgz",
+      "integrity": "sha512-jp/uFnooOiO+L211eZOoSyzpOITMXx1rBITauYykG3BRYPu8h0UcxsPNB04RR5vo4Tyz3+ay17tR6JVf9qzYWg==",
+      "dev": true
+    },
     "asynckit": {
       "version": "0.4.0",
       "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
       "integrity": "sha1-x57Zf380y48robyXkLzDZkdLS3k="
     },
+    "aws-sign2": {
+      "version": "0.7.0",
+      "resolved": "https://registry.npmjs.org/aws-sign2/-/aws-sign2-0.7.0.tgz",
+      "integrity": "sha1-tG6JCTSpWR8tL2+G1+ap8bP+dqg=",
+      "dev": true
+    },
+    "aws4": {
+      "version": "1.8.0",
+      "resolved": "https://registry.npmjs.org/aws4/-/aws4-1.8.0.tgz",
+      "integrity": "sha512-ReZxvNHIOv88FlT7rxcXIIC0fPt4KZqZbOlivyWtXLt8ESx84zd3kMC6iK5jVeS2qt+g7ftS7ye4fi06X5rtRQ==",
+      "dev": true
+    },
     "balanced-match": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.0.tgz",
       "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c=",
       "dev": true
     },
+    "basic-auth": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/basic-auth/-/basic-auth-2.0.0.tgz",
+      "integrity": "sha1-AV2z81PgLlY3d1X5YnQuiYHnu7o=",
+      "dev": true,
+      "requires": {
+        "safe-buffer": "5.1.1"
+      }
+    },
+    "bcrypt": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/bcrypt/-/bcrypt-1.0.3.tgz",
+      "integrity": "sha512-pRyDdo73C8Nim3jwFJ7DWe3TZCgwDfWZ6nHS5LSdU77kWbj1frruvdndP02AOavtD4y8v6Fp2dolbHgp4SDrfg==",
+      "dev": true,
+      "optional": true,
+      "requires": {
+        "nan": "2.6.2",
+        "node-pre-gyp": "0.6.36"
+      }
+    },
+    "bcrypt-pbkdf": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/bcrypt-pbkdf/-/bcrypt-pbkdf-1.0.2.tgz",
+      "integrity": "sha1-pDAdOJtqQ/m2f/PKEaP2Y342Dp4=",
+      "dev": true,
+      "requires": {
+        "tweetnacl": "0.14.5"
+      }
+    },
+    "bcryptjs": {
+      "version": "2.4.3",
+      "resolved": "https://registry.npmjs.org/bcryptjs/-/bcryptjs-2.4.3.tgz",
+      "integrity": "sha1-mrVie5PmBiH/fNrF2pczAn3x0Ms=",
+      "dev": true
+    },
+    "bl": {
+      "version": "1.2.2",
+      "resolved": "http://registry.npmjs.org/bl/-/bl-1.2.2.tgz",
+      "integrity": "sha512-e8tQYnZodmebYDWGH7KMRvtzKXaJHx3BbilrgZCfvyLUYdKpK1t5PSPmpkny/SgiTSCnjfLW7v5rlONXVFkQEA==",
+      "dev": true,
+      "requires": {
+        "readable-stream": "2.3.5",
+        "safe-buffer": "5.1.1"
+      }
+    },
+    "block-stream": {
+      "version": "0.0.9",
+      "resolved": "https://registry.npmjs.org/block-stream/-/block-stream-0.0.9.tgz",
+      "integrity": "sha1-E+v+d4oDIFz+A3UUgeu0szAMEmo=",
+      "dev": true,
+      "requires": {
+        "inherits": "2.0.3"
+      }
+    },
     "body-parser": {
       "version": "1.18.2",
       "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.18.2.tgz",
       "integrity": "sha1-h2eKGdhLR9hZuDGZvVm84iKxBFQ=",
       "requires": {
         "bytes": "3.0.0",
-        "content-type": "~1.0.4",
+        "content-type": "1.0.4",
         "debug": "2.6.9",
-        "depd": "~1.1.1",
-        "http-errors": "~1.6.2",
+        "depd": "1.1.2",
+        "http-errors": "1.6.2",
         "iconv-lite": "0.4.19",
-        "on-finished": "~2.3.0",
+        "on-finished": "2.3.0",
         "qs": "6.5.1",
         "raw-body": "2.3.2",
-        "type-is": "~1.6.15"
+        "type-is": "1.6.16"
       }
     },
+    "boolbase": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/boolbase/-/boolbase-1.0.0.tgz",
+      "integrity": "sha1-aN/1++YMUes3cl6p4+0xDcwed24=",
+      "dev": true
+    },
     "brace-expansion": {
       "version": "1.1.11",
       "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
       "integrity": "sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA==",
       "dev": true,
       "requires": {
-        "balanced-match": "^1.0.0",
+        "balanced-match": "1.0.0",
         "concat-map": "0.0.1"
       }
     },
@@ -70,22 +238,147 @@
       "integrity": "sha512-qhAVI1+Av2X7qelOfAIYwXONood6XlZE/fXaBSmW/T5SzLAmCgzi+eiWE7fUvbHaeNBQH13UftjpXxsfLkMpgw==",
       "dev": true
     },
+    "buffer-from": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/buffer-from/-/buffer-from-1.1.1.tgz",
+      "integrity": "sha512-MQcXEUbCKtEo7bhqEs6560Hyd4XaovZlO/k9V3hjVUF/zwW7KBVdSK4gIt/bzwS9MbR5qob+F5jusZsb0YQK2A==",
+      "dev": true
+    },
+    "buildmail": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/buildmail/-/buildmail-2.0.0.tgz",
+      "integrity": "sha1-8LewpZ6aShtQZrv6BR0kjzgy7s4=",
+      "dev": true,
+      "requires": {
+        "addressparser": "0.3.2",
+        "libbase64": "0.1.0",
+        "libmime": "1.2.0",
+        "libqp": "1.1.0",
+        "needle": "0.10.0"
+      },
+      "dependencies": {
+        "addressparser": {
+          "version": "0.3.2",
+          "resolved": "https://registry.npmjs.org/addressparser/-/addressparser-0.3.2.tgz",
+          "integrity": "sha1-WYc/Nej89sc2HBAjkmHXbhU0i7I=",
+          "dev": true
+        },
+        "needle": {
+          "version": "0.10.0",
+          "resolved": "http://registry.npmjs.org/needle/-/needle-0.10.0.tgz",
+          "integrity": "sha1-FqJNY/KmEVLrdMzh0Sr4XFB1d9Q=",
+          "dev": true,
+          "requires": {
+            "debug": "2.6.9",
+            "iconv-lite": "0.4.19"
+          }
+        }
+      }
+    },
     "builtin-modules": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/builtin-modules/-/builtin-modules-1.1.1.tgz",
       "integrity": "sha1-Jw8HbFpywC9bZaR9+Uxf46J4iS8="
     },
+    "busboy": {
+      "version": "0.2.14",
+      "resolved": "https://registry.npmjs.org/busboy/-/busboy-0.2.14.tgz",
+      "integrity": "sha1-bCpiLvz0fFe7vh4qnDetNseSVFM=",
+      "dev": true,
+      "requires": {
+        "dicer": "0.2.5",
+        "readable-stream": "1.1.14"
+      },
+      "dependencies": {
+        "isarray": {
+          "version": "0.0.1",
+          "resolved": "https://registry.npmjs.org/isarray/-/isarray-0.0.1.tgz",
+          "integrity": "sha1-ihis/Kmo9Bd+Cav8YDiTmwXR7t8=",
+          "dev": true
+        },
+        "readable-stream": {
+          "version": "1.1.14",
+          "resolved": "http://registry.npmjs.org/readable-stream/-/readable-stream-1.1.14.tgz",
+          "integrity": "sha1-fPTFTvZI44EwhMY23SB54WbAgdk=",
+          "dev": true,
+          "requires": {
+            "core-util-is": "1.0.2",
+            "inherits": "2.0.3",
+            "isarray": "0.0.1",
+            "string_decoder": "0.10.31"
+          }
+        },
+        "string_decoder": {
+          "version": "0.10.31",
+          "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-0.10.31.tgz",
+          "integrity": "sha1-YuIDvEF2bGwoyfyEMB2rHFMQ+pQ=",
+          "dev": true
+        }
+      }
+    },
     "bytes": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/bytes/-/bytes-3.0.0.tgz",
       "integrity": "sha1-0ygVQE1olpn4Wk6k+odV3ROpYEg="
     },
+    "callback-stream": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/callback-stream/-/callback-stream-1.1.0.tgz",
+      "integrity": "sha1-RwGlEmbwbgbqpx/BcjOCLYdfSQg=",
+      "dev": true,
+      "requires": {
+        "inherits": "2.0.3",
+        "readable-stream": "2.3.5"
+      }
+    },
+    "caseless": {
+      "version": "0.12.0",
+      "resolved": "https://registry.npmjs.org/caseless/-/caseless-0.12.0.tgz",
+      "integrity": "sha1-G2gcIf+EAzyCZUMJBolCDRhxUdw=",
+      "dev": true
+    },
+    "cheerio": {
+      "version": "0.22.0",
+      "resolved": "http://registry.npmjs.org/cheerio/-/cheerio-0.22.0.tgz",
+      "integrity": "sha1-qbqoYKP5tZWmuBsahocxIe06Jp4=",
+      "dev": true,
+      "requires": {
+        "css-select": "1.2.0",
+        "dom-serializer": "0.1.0",
+        "entities": "1.1.2",
+        "htmlparser2": "3.10.0",
+        "lodash.assignin": "4.2.0",
+        "lodash.bind": "4.2.1",
+        "lodash.defaults": "4.2.0",
+        "lodash.filter": "4.6.0",
+        "lodash.flatten": "4.4.0",
+        "lodash.foreach": "4.5.0",
+        "lodash.map": "4.6.0",
+        "lodash.merge": "4.6.1",
+        "lodash.pick": "4.4.0",
+        "lodash.reduce": "4.6.0",
+        "lodash.reject": "4.6.0",
+        "lodash.some": "4.6.0"
+      }
+    },
+    "clone": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/clone/-/clone-2.1.1.tgz",
+      "integrity": "sha1-0hfR6WERjjrJpLi7oyhVU79kfNs=",
+      "dev": true
+    },
+    "code-point-at": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/code-point-at/-/code-point-at-1.1.0.tgz",
+      "integrity": "sha1-DQcLTQQ6W+ozovGkDi7bPZpMz3c=",
+      "dev": true
+    },
     "combined-stream": {
       "version": "1.0.6",
       "resolved": "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.6.tgz",
       "integrity": "sha1-cj599ugBrFYTETp+RFqbactjKBg=",
       "requires": {
-        "delayed-stream": "~1.0.0"
+        "delayed-stream": "1.0.0"
       }
     },
     "commander": {
@@ -94,6 +387,24 @@
       "integrity": "sha512-b0553uYA5YAEGgyYIGYROzKQ7X5RAqedkfjiZxwi0kL1g3bOaBNNZfYkzt/CL0umgD5wc9Jec2FbB98CjkMRvQ==",
       "dev": true
     },
+    "commist": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/commist/-/commist-1.0.0.tgz",
+      "integrity": "sha1-wMNSUBz29S6RJOPvicmAbiAi6+8=",
+      "dev": true,
+      "requires": {
+        "leven": "1.0.2",
+        "minimist": "1.2.0"
+      },
+      "dependencies": {
+        "minimist": {
+          "version": "1.2.0",
+          "resolved": "http://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
+          "integrity": "sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ=",
+          "dev": true
+        }
+      }
+    },
     "component-emitter": {
       "version": "1.2.1",
       "resolved": "https://registry.npmjs.org/component-emitter/-/component-emitter-1.2.1.tgz",
@@ -105,6 +416,24 @@
       "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s=",
       "dev": true
     },
+    "concat-stream": {
+      "version": "1.6.2",
+      "resolved": "https://registry.npmjs.org/concat-stream/-/concat-stream-1.6.2.tgz",
+      "integrity": "sha512-27HBghJxjiZtIk3Ycvn/4kbJk/1uZuJFfuPEns6LaEvpvG1f0hTea8lilrouyo9mVc2GWdcEZ8OLoGmSADlrCw==",
+      "dev": true,
+      "requires": {
+        "buffer-from": "1.1.1",
+        "inherits": "2.0.3",
+        "readable-stream": "2.3.5",
+        "typedarray": "0.0.6"
+      }
+    },
+    "console-control-strings": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/console-control-strings/-/console-control-strings-1.1.0.tgz",
+      "integrity": "sha1-PXz0Rk22RG6mRL9LOVB/mFEAjo4=",
+      "dev": true
+    },
     "content-disposition": {
       "version": "0.5.2",
       "resolved": "https://registry.npmjs.org/content-disposition/-/content-disposition-0.5.2.tgz",
@@ -120,6 +449,16 @@
       "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.3.1.tgz",
       "integrity": "sha1-5+Ch+e9DtMi6klxcWpboBtFoc7s="
     },
+    "cookie-parser": {
+      "version": "1.4.3",
+      "resolved": "https://registry.npmjs.org/cookie-parser/-/cookie-parser-1.4.3.tgz",
+      "integrity": "sha1-D+MfoZ0AC5X0qt8fU/3CuKIDuqU=",
+      "dev": true,
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       "version": "4.0.8",
       "resolved": "https://registry.npmjs.org/type-detect/-/type-detect-4.0.8.tgz",
@@ -968,14 +3330,114 @@
       "integrity": "sha512-HRkVv/5qY2G6I8iab9cI7v1bOIdhm94dVjQCPFElW9W+3GeDOSHmy2EBYe4VTApuzolPcmgFTN3ftVJRKR2J9Q==",
       "requires": {
         "media-typer": "0.3.0",
-        "mime-types": "~2.1.18"
+        "mime-types": "2.1.18"
+      }
+    },
+    "typedarray": {
+      "version": "0.0.6",
+      "resolved": "https://registry.npmjs.org/typedarray/-/typedarray-0.0.6.tgz",
+      "integrity": "sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=",
+      "dev": true
+    },
+    "uglify-js": {
+      "version": "3.3.25",
+      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.3.25.tgz",
+      "integrity": "sha512-hobogryjDV36VrLK3Y69ou4REyrTApzUblVFmdQOYRe8cYaSmFJXMb4dR9McdvYDSbeNdzUgYr2YVukJaErJcA==",
+      "dev": true,
+      "requires": {
+        "commander": "2.15.1",
+        "source-map": "0.6.1"
+      },
+      "dependencies": {
+        "commander": {
+          "version": "2.15.1",
+          "resolved": "http://registry.npmjs.org/commander/-/commander-2.15.1.tgz",
+          "integrity": "sha512-VlfT9F3V0v+jr4yxPc5gg9s62/fIVWsd2Bk2iD435um1NlGMYdVCq+MjcXnhYq2icNOizHr1kK+5TI6H0Hy0ag==",
+          "dev": true
+        }
+      }
+    },
+    "uid-number": {
+      "version": "0.0.6",
+      "resolved": "https://registry.npmjs.org/uid-number/-/uid-number-0.0.6.tgz",
+      "integrity": "sha1-DqEOgDXo61uOREnwbaHHMGY7qoE=",
+      "dev": true,
+      "optional": true
+    },
+    "uid-safe": {
+      "version": "2.1.5",
+      "resolved": "https://registry.npmjs.org/uid-safe/-/uid-safe-2.1.5.tgz",
+      "integrity": "sha512-KPHm4VL5dDXKz01UuEd88Df+KzynaohSL9fBh096KWAxSKZQDI2uBrVqtvRM4rwrIrRRKsdLNML/lnaaVSRioA==",
+      "dev": true,
+      "requires": {
+        "random-bytes": "1.0.0"
+      }
+    },
+    "uid2": {
+      "version": "0.0.3",
+      "resolved": "https://registry.npmjs.org/uid2/-/uid2-0.0.3.tgz",
+      "integrity": "sha1-SDEm4Rd03y9xuLY53NeZw3YWK4I=",
+      "dev": true
+    },
+    "ultron": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/ultron/-/ultron-1.1.1.tgz",
+      "integrity": "sha512-UIEXBNeYmKptWH6z8ZnqTeS8fV74zG0/eRU9VGkpzz+LIJNs8W/zM/L+7ctCkRrgbNnnR0xxw4bKOr0cW0N0Og==",
+      "dev": true
+    },
+    "unc-path-regex": {
+      "version": "0.1.2",
+      "resolved": "https://registry.npmjs.org/unc-path-regex/-/unc-path-regex-0.1.2.tgz",
+      "integrity": "sha1-5z3T17DXxe2G+6xrCufYxqadUPo=",
+      "dev": true
+    },
+    "unique-stream": {
+      "version": "2.2.1",
+      "resolved": "https://registry.npmjs.org/unique-stream/-/unique-stream-2.2.1.tgz",
+      "integrity": "sha1-WqADz76Uxf+GbE59ZouxxNuts2k=",
+      "dev": true,
+      "requires": {
+        "json-stable-stringify": "1.0.1",
+        "through2-filter": "2.0.0"
       }
     },
+    "universalify": {
+      "version": "0.1.2",
+      "resolved": "https://registry.npmjs.org/universalify/-/universalify-0.1.2.tgz",
+      "integrity": "sha512-rBJeI5CXAlmy1pV+617WB9J63U6XcazHHF2f2dbJix4XzpUF0RS3Zbj0FGIOCAva5P/d/GBOYaACQ1w+0azUkg==",
+      "dev": true
+    },
     "unpipe": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",
       "integrity": "sha1-sr9O6FFKrmFltIF4KdIbLvSZBOw="
     },
+    "uri-js": {
+      "version": "4.2.2",
+      "resolved": "https://registry.npmjs.org/uri-js/-/uri-js-4.2.2.tgz",
+      "integrity": "sha512-KY9Frmirql91X2Qgjry0Wd4Y+YTdrdZheS8TFwvkbLWf/G5KNJDCh6pKL5OZctEW4+0Baa5idK2ZQuELRwPznQ==",
+      "dev": true,
+      "requires": {
+        "punycode": "2.1.1"
+      }
+    },
+    "utf7": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/utf7/-/utf7-1.0.2.tgz",
+      "integrity": "sha1-lV9JCq5lO6IguUVqCod2wZk2CZE=",
+      "dev": true,
+      "requires": {
+        "semver": "5.3.0"
+      },
+      "dependencies": {
+        "semver": {
+          "version": "5.3.0",
+          "resolved": "http://registry.npmjs.org/semver/-/semver-5.3.0.tgz",
+          "integrity": "sha1-myzl094C0XxgEq0yaqa00M9U+U8=",
+          "dev": true
+        }
+      }
+    },
     "util-deprecate": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
@@ -986,13 +3448,29 @@
       "resolved": "https://registry.npmjs.org/utils-merge/-/utils-merge-1.0.1.tgz",
       "integrity": "sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM="
     },
+    "uue": {
+      "version": "3.1.2",
+      "resolved": "https://registry.npmjs.org/uue/-/uue-3.1.2.tgz",
+      "integrity": "sha512-axKLXVqwtdI/czrjG0X8hyV1KLgeWx8F4KvSbvVCnS+RUvsQMGRjx0kfuZDXXqj0LYvVJmx3B9kWlKtEdRrJLg==",
+      "dev": true,
+      "requires": {
+        "escape-string-regexp": "1.0.5",
+        "extend": "3.0.1"
+      }
+    },
+    "uuid": {
+      "version": "3.3.2",
+      "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.3.2.tgz",
+      "integrity": "sha512-yXJmeNaw3DnnKAOKJE51sL/ZaYfWJRl1pK9dr19YFCu0ObS231AB1/LbqTKRAQ5kw8A90rA6fr4riOUpTZvQZA==",
+      "dev": true
+    },
     "validate-npm-package-license": {
       "version": "3.0.3",
       "resolved": "https://registry.npmjs.org/validate-npm-package-license/-/validate-npm-package-license-3.0.3.tgz",
       "integrity": "sha512-63ZOUnL4SIXj4L0NixR3L1lcjO38crAbgrTpl28t8jjrfuiOBL5Iygm+60qPs/KsZGzPNg6Smnc/oY16QTjF0g==",
       "requires": {
-        "spdx-correct": "^3.0.0",
-        "spdx-expression-parse": "^3.0.0"
+        "spdx-correct": "3.0.0",
+        "spdx-expression-parse": "3.0.0"
       }
     },
     "vary": {
@@ -1000,16 +3478,116 @@
       "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
       "integrity": "sha1-IpnwLG3tMNSllhsLn3RSShj2NPw="
     },
+    "verror": {
+      "version": "1.10.0",
+      "resolved": "https://registry.npmjs.org/verror/-/verror-1.10.0.tgz",
+      "integrity": "sha1-OhBcoXBTr1XW4nDB+CiGguGNpAA=",
+      "dev": true,
+      "requires": {
+        "assert-plus": "1.0.0",
+        "core-util-is": "1.0.2",
+        "extsprintf": "1.3.0"
+      }
+    },
+    "websocket-stream": {
+      "version": "5.1.2",
+      "resolved": "https://registry.npmjs.org/websocket-stream/-/websocket-stream-5.1.2.tgz",
+      "integrity": "sha512-lchLOk435iDWs0jNuL+hiU14i3ERSrMA0IKSiJh7z6X/i4XNsutBZrtqu2CPOZuA4G/zabiqVAos0vW+S7GEVw==",
+      "dev": true,
+      "requires": {
+        "duplexify": "3.6.1",
+        "inherits": "2.0.3",
+        "readable-stream": "2.3.5",
+        "safe-buffer": "5.1.1",
+        "ws": "3.3.3",
+        "xtend": "4.0.1"
+      },
+      "dependencies": {
+        "ws": {
+          "version": "3.3.3",
+          "resolved": "https://registry.npmjs.org/ws/-/ws-3.3.3.tgz",
+          "integrity": "sha512-nnWLa/NwZSt4KQJu51MYlCcSQ5g7INpOrOMt4XV8j4dqTXdmlUmSHQ8/oLC069ckre0fRsgfvsKwbTdtKLCDkA==",
+          "dev": true,
+          "requires": {
+            "async-limiter": "1.0.0",
+            "safe-buffer": "5.1.1",
+            "ultron": "1.1.1"
+          }
+        }
+      }
+    },
     "when": {
       "version": "3.7.8",
       "resolved": "https://registry.npmjs.org/when/-/when-3.7.8.tgz",
       "integrity": "sha1-xxMLan6gRpPoQs3J56Hyqjmjn4I="
     },
+    "wide-align": {
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/wide-align/-/wide-align-1.1.3.tgz",
+      "integrity": "sha512-QGkOQc8XL6Bt5PwnsExKBPuMKBxnGxWWW3fU55Xt4feHozMUhdUMaBCk290qpm/wG5u/RSKzwdAC4i51YigihA==",
+      "dev": true,
+      "optional": true,
+      "requires": {
+        "string-width": "1.0.2"
+      }
+    },
+    "wordwrap": {
+      "version": "0.0.3",
+      "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-0.0.3.tgz",
+      "integrity": "sha1-o9XabNXAvAAI03I0u68b7WMFkQc=",
+      "dev": true
+    },
     "wrappy": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
       "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
       "dev": true
+    },
+    "ws": {
+      "version": "1.1.5",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-1.1.5.tgz",
+      "integrity": "sha512-o3KqipXNUdS7wpQzBHSe180lBGO60SoK0yVo3CYJgb2MkobuWuBX6dhkYP5ORCLd55y+SaflMOV5fqAB53ux4w==",
+      "dev": true,
+      "requires": {
+        "options": "0.0.6",
+        "ultron": "1.0.2"
+      },
+      "dependencies": {
+        "ultron": {
+          "version": "1.0.2",
+          "resolved": "https://registry.npmjs.org/ultron/-/ultron-1.0.2.tgz",
+          "integrity": "sha1-rOEWq1V80Zc4ak6I9GhTeMiy5Po=",
+          "dev": true
+        }
+      }
+    },
+    "xml2js": {
+      "version": "0.4.19",
+      "resolved": "https://registry.npmjs.org/xml2js/-/xml2js-0.4.19.tgz",
+      "integrity": "sha512-esZnJZJOiJR9wWKMyuvSE1y6Dq5LCuJanqhxslH2bxM6duahNZ+HMpCLhBQGZkbX6xRf8x1Y2eJlgt2q3qo49Q==",
+      "dev": true,
+      "requires": {
+        "sax": "1.2.4",
+        "xmlbuilder": "9.0.7"
+      }
+    },
+    "xmlbuilder": {
+      "version": "9.0.7",
+      "resolved": "http://registry.npmjs.org/xmlbuilder/-/xmlbuilder-9.0.7.tgz",
+      "integrity": "sha1-Ey7mPS7FVlxVfiD0wi35rKaGsQ0=",
+      "dev": true
+    },
+    "xtend": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.1.tgz",
+      "integrity": "sha1-pcbVMr5lbiPbgg77lDofBJmNY68=",
+      "dev": true
+    },
+    "yallist": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/yallist/-/yallist-2.1.2.tgz",
+      "integrity": "sha1-HBH5IY8HYImkfdUS+TxmmaaoHVI=",
+      "dev": true
     }
   }
 }
diff --git a/package.json b/package.json
index 4e0abac..0c722c9 100644
--- a/package.json
+++ b/package.json
@@ -27,7 +27,8 @@
     "node-red": "~0.18.4"
   },
   "devDependencies": {
-    "mocha": "~5.0.4"
+    "mocha": "~5.0.4",
+    "node-red": "~0.18.4"
   },
   "contributors": [
     {
diff --git a/test/_spec.js b/test/_spec.js
index c2b6d89..0a2bc6f 100644
--- a/test/_spec.js
+++ b/test/_spec.js
@@ -1,11 +1,42 @@
-var should = require("should");
-var helper = require('../index.js');
+const should = require("should");
+const helper = require('../index.js');
 
 describe('_spec.js', function() {
-  console.log('todo');
+    console.log('todo');
 
-  it('should have credentials', function(done) {
-    helper.should.have.property('credentials');
-    done();
-  });
-});
\ No newline at end of file
+    it('should have credentials', function(done) {
+        helper.should.have.property('credentials');
+        done();
+    });
+});
+
+
+describe('load', function() {
+
+    afterEach(async () => {
+        await helper.unload();
+    });
+
+    const flow = [{id: "n1", type: "helper", name: "helper"}];
+
+    it('should not throw exception', function() {
+        helper.load([], flow);
+    });
+
+    it('should call callback', function(done) {
+        should.not.exist(helper.getNode("n1"));
+        helper.load([], flow, () => {
+            should.exist(helper.getNode("n1"));
+            done();
+        });
+        should.not.exist(helper.getNode("n1"));
+    });
+
+    it('should resolve promise', function() {
+        should.not.exist(helper.getNode("n1"));
+        helper.load([], flow).then(() => {
+            should.exist(helper.getNode("n1"));
+        });
+        should.not.exist(helper.getNode("n1"));
+    });
+});

From dcc296d97a1831b96373550c2595752e1f3092e5 Mon Sep 17 00:00:00 2001
From: Niels Ulrik Andersen <niels@myplace.dk>
Date: Sun, 18 Nov 2018 14:47:33 +0100
Subject: [PATCH 2/8] Add a next-function to get single events async.

---
 index.js      |  52 +++++++++++++-
 test/_spec.js | 194 +++++++++++++++++++++++++++++++++++++++++++++++---
 2 files changed, 237 insertions(+), 9 deletions(-)

diff --git a/index.js b/index.js
index 202f38a..c395953 100644
--- a/index.js
+++ b/index.js
@@ -218,9 +218,59 @@ class NodeTestHelper extends EventEmitter {
      * @returns {Node}
      */
     getNode(id) {
-        return this._redNodes.getNode(id);
+        const node = this._redNodes.getNode(id);
+        this.decorateNode(node);
+        return node;
     }
 
+    decorateNode(node) {
+        if (node == null || node.testhelper) {return;}
+
+        node.testhelper = {};
+
+        this.decorateNodeEvent(node, 'input');
+
+        PROXY_METHODS.forEach(methodName => {
+            this.decorateNodeEvent(node, `call:${methodName}`);
+        });
+
+        const cloneMessage = this._RED.util.cloneMessage;
+
+        node.next = async function(event) {
+            if (node.testhelper[event].args.length > 0) {
+                return node.testhelper[event].args.shift();
+            }
+            return new Promise((resolve, reject) => {
+                node.testhelper[event].resolvers.push(resolve);
+            });
+        }
+    }
+
+    decorateNodeEvent(node, eventName) {
+        node.testhelper[eventName] = {
+            args: [],
+            resolvers: []
+        };
+
+        node.on(eventName, arg => {
+            if (eventName === "input") {
+                arg = this._RED.util.cloneMessage(arg);
+            }
+            try {
+                if (node.testhelper[eventName].resolvers.length > 0) {
+                    const resolver = node.testhelper[eventName].resolvers.shift();
+                    resolver(arg);
+                } else {
+                    node.testhelper[eventName].args.push(arg);
+                }
+            } catch (e) {
+                console.log(e);
+            }
+        });
+
+    }
+
+
     clearFlows() {
         return this._redNodes.stopFlows();
     }
diff --git a/test/_spec.js b/test/_spec.js
index 0a2bc6f..1ca3d44 100644
--- a/test/_spec.js
+++ b/test/_spec.js
@@ -1,24 +1,58 @@
 const should = require("should");
 const helper = require('../index.js');
 
+afterEach(async () => {
+    await helper.unload();
+});
+
+const flow = [{id: "n1", type: "helper", name: "helper"}];
+
+const flow2 = [
+    {id: 'n3', type: 'to', name: 'test name', wires: [['n1'], ['n2']]},
+    {id: 'n1', type: 'helper'},
+    {id: 'n2', type: 'helper'},
+];
+
+const twoOutputOneMessageNode = function(RED) {
+    function to(config) {
+        RED.nodes.createNode(this, config);
+        const node = this;
+        node.on('input', function(msg) {
+            node.warn("this is a warning");
+            msg.payload = "output1";
+            node.send([msg, null]);
+            msg.payload = "output2";
+            node.send([null, msg]);
+        });
+    }
+
+    RED.nodes.registerType("to", to);
+};
+
+const twoOutputTwoMessagesNode = function(RED) {
+    function to(config) {
+        RED.nodes.createNode(this, config);
+        const node = this;
+        node.on('input', function(msg) {
+            node.send([{payload: "output1"}, {payload: "output2"}]);
+        });
+    }
+
+    RED.nodes.registerType("to", to);
+};
+
 describe('_spec.js', function() {
     console.log('todo');
 
-    it('should have credentials', function(done) {
+    it('should have credentials', async function() {
+        await helper.load([], []);
         helper.should.have.property('credentials');
-        done();
     });
 });
 
 
 describe('load', function() {
 
-    afterEach(async () => {
-        await helper.unload();
-    });
-
-    const flow = [{id: "n1", type: "helper", name: "helper"}];
-
     it('should not throw exception', function() {
         helper.load([], flow);
     });
@@ -40,3 +74,147 @@ describe('load', function() {
         should.not.exist(helper.getNode("n1"));
     });
 });
+
+describe('on-input', function() {
+    it('should work with one message', function(done) {
+        helper.load([], flow, function() {
+            const n1 = helper.getNode("n1");
+            n1.on('input', msg => {
+                msg.payload.should.equal("works");
+                done();
+            });
+            n1.receive({payload: "works"});
+        });
+    });
+
+    it('should work with two outputs, two messages', function(done) {
+        helper.load([twoOutputTwoMessagesNode], flow2, function() {
+            try {
+                const n1 = helper.getNode("n1");
+                const n2 = helper.getNode("n2");
+                const to = helper.getNode("n3");
+                let output1 = false;
+                let output2 = false;
+                n1.on('input', msg => {
+                    msg.payload.should.equal("output1");
+                    output1 = true;
+                    if (output1 && output2) {
+                        done();
+                    }
+                });
+                n2.on('input', msg => {
+                    msg.payload.should.equal("output2");
+                    output2 = true;
+                    if (output1 && output2) {
+                        done();
+                    }
+                });
+                to.receive({payload: "testing"});
+            } catch (e) {
+                done(e);
+            }
+        });
+    });
+
+    it('should work with two outputs, modified message', function(done) {
+        helper.load([twoOutputOneMessageNode], flow2, function() {
+            try {
+                const n1 = helper.getNode("n1");
+                const n2 = helper.getNode("n2");
+                const to = helper.getNode("n3");
+                let output1 = false;
+                let output2 = false;
+                n1.on('input', msg => {
+                    msg.payload.should.equal("output1");
+                    output1 = true;
+                    if (output1 && output2) {
+                        done();
+                    }
+                });
+                n2.on('input', msg => {
+                    msg.payload.should.equal("output2");
+                    output2 = true;
+                    if (output1 && output2) {
+                        done();
+                    }
+                });
+                to.receive({payload: "testing"});
+            } catch (e) {
+                done(e);
+            }
+        });
+    });
+});
+
+describe('next input', function() {
+
+    it('should work with one output', async function() {
+        await helper.load([], flow);
+        const n1 = helper.getNode("n1");
+        n1.receive({payload: "works"});
+        const msg = await n1.next('input');
+        msg.payload.should.equal("works");
+    });
+
+    it('should work with two outputs, two messages', async function() {
+        await helper.load([twoOutputTwoMessagesNode], flow2);
+        const n1 = helper.getNode("n1");
+        const n2 = helper.getNode("n2");
+        const to = helper.getNode("n3");
+
+        to.receive({payload: "testing"});
+
+        let msg = await n1.next('input');
+        msg.payload.should.equal("output1");
+        msg = await n2.next('input');
+        msg.payload.should.equal("output2");
+    });
+
+    it('should work with two outputs, modified message', async function() {
+        await helper.load([twoOutputOneMessageNode], flow2);
+        const n1 = helper.getNode("n1");
+        const n2 = helper.getNode("n2");
+        const to = helper.getNode("n3");
+
+        to.receive({payload: "testing"});
+
+        let msg = await n1.next('input');
+        msg.payload.should.equal("output1");
+        msg = await n2.next('input');
+        msg.payload.should.equal("output2");
+    });
+});
+
+describe('get log events', function() {
+
+    it('should work with event subscription', function(done) {
+        helper.load(twoOutputOneMessageNode, flow2, function() {
+            try {
+                const n3 = helper.getNode("n3");
+                n3.on('call:warn', call => {
+                    call.should.be.calledWithExactly('this is a warning');
+                    done();
+                });
+                n3.receive({payload: "testing"});
+            } catch (e) {
+                done(e);
+            }
+        });
+    });
+
+    it('should work with next', async function() {
+        await helper.load(twoOutputOneMessageNode, flow2);
+        const n3 = helper.getNode("n3");
+        n3.receive({payload: "testing"});
+        let call = await n3.next('call:warn');
+        call.should.be.calledWithExactly('this is a warning');
+    });
+
+    it('should work when in opposite order', async function() {
+        await helper.load(twoOutputOneMessageNode, flow2);
+        const n3 = helper.getNode("n3");
+        process.nextTick(()=>{n3.receive({payload: "testing"})});
+        let call = await n3.next('call:warn');
+        call.should.be.calledWithExactly('this is a warning');
+    });
+});

From bf889388caf3135be93e8cc3ee78b72a70d6d502 Mon Sep 17 00:00:00 2001
From: Niels Ulrik Andersen <niels@myplace.dk>
Date: Sun, 18 Nov 2018 20:24:25 +0100
Subject: [PATCH 3/8] Fix problem when stopping server that isn't started, such
 as during a failed test

---
 index.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/index.js b/index.js
index c395953..61b736f 100644
--- a/index.js
+++ b/index.js
@@ -204,7 +204,7 @@ class NodeTestHelper extends EventEmitter {
     unload() {
         // TODO: any other state to remove between tests?
         this._redNodes.clearRegistry();
-        this._logSpy.restore();
+        this._logSpy && this._logSpy.restore();
         this._sandbox.restore();
 
         // internal API

From 94b8b4caa4ed4a1e7a85ebeda43ba8096e1e5f3f Mon Sep 17 00:00:00 2001
From: Niels Ulrik Andersen <niels@myplace.dk>
Date: Sun, 18 Nov 2018 20:25:25 +0100
Subject: [PATCH 4/8] Make startServer and stopServer return promises

---
 index.js      | 40 +++++++++++++++++++++++++---------------
 test/_spec.js | 19 +++++++++++++++++++
 2 files changed, 44 insertions(+), 15 deletions(-)

diff --git a/index.js b/index.js
index 61b736f..09306e3 100644
--- a/index.js
+++ b/index.js
@@ -290,28 +290,38 @@ class NodeTestHelper extends EventEmitter {
             logging:{console:{level:'off'}}
         });
         server.listen(this._listenPort, this._address);
-        server.on('listening', () => {
-            this._port = server.address().port;
-            // internal API
-            this._comms.start();
-            done();
-        });
         this._server = server;
+        return new Promise(resolve => {
+            server.on('listening', () => {
+                this._port = server.address().port;
+                // internal API
+                this._comms.start();
+                done && done();
+                resolve();
+            });
+        });
     }
 
     //TODO consider saving TCP handshake/server reinit on start/stop/start sequences
     stopServer(done) {
-        if (this._server) {
-            try {
-                // internal API
-                this._comms.stop();
-                this._server.stop(done);
-            } catch (e) {
+        return new Promise(resolve => {
+            if (typeof done === 'function') {
+                done = () => {done(); resolve();}
+            } else {
+                done = resolve;
+            }
+            if (this._server) {
+                try {
+                    // internal API
+                    this._comms.stop();
+                    this._server.stop(done);
+                } catch (e) {
+                    done();
+                }
+            } else {
                 done();
             }
-        } else {
-            done();
-        }
+        });
     }
 
     url() {
diff --git a/test/_spec.js b/test/_spec.js
index 1ca3d44..c126ecc 100644
--- a/test/_spec.js
+++ b/test/_spec.js
@@ -3,6 +3,7 @@ const helper = require('../index.js');
 
 afterEach(async () => {
     await helper.unload();
+    await helper.stopServer();
 });
 
 const flow = [{id: "n1", type: "helper", name: "helper"}];
@@ -51,6 +52,24 @@ describe('_spec.js', function() {
 });
 
 
+describe('start', function() {
+
+    it('should start and call callback', function(done) {
+        delete helper._server;
+        helper.startServer(function() {
+            should.exist(helper._server);
+            done();
+        });
+    });
+
+    it('should start and resolve promise', async function() {
+        delete helper._server;
+        await helper.startServer();
+        should.exist(helper._server);
+    });
+});
+
+
 describe('load', function() {
 
     it('should not throw exception', function() {

From c6136e5226b65787c8a29f3612ffc01da25a11de Mon Sep 17 00:00:00 2001
From: Niels Ulrik Andersen <niels@myplace.dk>
Date: Sun, 18 Nov 2018 19:28:39 +0100
Subject: [PATCH 5/8] Copy examples/*_spec.js

---
 examples/comment_async_spec.js    |  38 ++
 examples/function_async_spec.js   | 582 ++++++++++++++++++++++++++++++
 examples/lower-case_async_spec.js |  45 +++
 3 files changed, 665 insertions(+)
 create mode 100644 examples/comment_async_spec.js
 create mode 100644 examples/function_async_spec.js
 create mode 100644 examples/lower-case_async_spec.js

diff --git a/examples/comment_async_spec.js b/examples/comment_async_spec.js
new file mode 100644
index 0000000..78f9b0c
--- /dev/null
+++ b/examples/comment_async_spec.js
@@ -0,0 +1,38 @@
+/**
+ * Copyright JS Foundation and other contributors, http://js.foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ **/
+
+var should = require("should");
+var helper = require("../index.js");
+helper.init(require.resolve('node-red'));
+
+var commentNode = require("./nodes/90-comment.js");
+
+describe('comment Node', function() {
+
+    afterEach(function() {
+        helper.unload();
+    });
+
+    it('should be loaded', function(done) {
+        var flow = [{id:"n1", type:"comment", name: "comment" }];
+        helper.load(commentNode, flow, function() {
+            var n1 = helper.getNode("n1");
+            n1.should.have.property('name', 'comment');
+            done();
+        });
+    });
+
+});
diff --git a/examples/function_async_spec.js b/examples/function_async_spec.js
new file mode 100644
index 0000000..1791b18
--- /dev/null
+++ b/examples/function_async_spec.js
@@ -0,0 +1,582 @@
+/**
+ * Copyright JS Foundation and other contributors, http://js.foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ **/
+
+var should = require("should");
+var helper = require("../index.js");
+helper.init(require.resolve('node-red'));
+
+var functionNode = require("./nodes/80-function.js");
+
+describe('function node', function() {
+
+    before(function(done) {
+        helper.startServer(done);
+    });
+
+    after(function(done) {
+        helper.stopServer(done);
+    });
+
+    afterEach(function() {
+        helper.unload();
+    });
+
+    it('should be loaded', function(done) {
+        var flow = [{id:"n1", type:"function", name: "function" }];
+        helper.load(functionNode, flow, function() {
+            var n1 = helper.getNode("n1");
+            n1.should.have.property('name', 'function');
+            done();
+        });
+    });
+
+    it('should send returned message', function(done) {
+        var flow = [{id:"n1",type:"function",wires:[["n2"]],func:"return msg;"},
+            {id:"n2", type:"helper"}];
+        helper.load(functionNode, flow, function() {
+            var n1 = helper.getNode("n1");
+            var n2 = helper.getNode("n2");
+            n2.on("input", function(msg) {
+                msg.should.have.property('topic', 'bar');
+                msg.should.have.property('payload', 'foo');
+                done();
+            });
+            n1.receive({payload:"foo",topic: "bar"});
+        });
+    });
+
+    it('should send returned message using send()', function(done) {
+        var flow = [{id:"n1",type:"function",wires:[["n2"]],func:"node.send(msg);"},
+            {id:"n2", type:"helper"}];
+        helper.load(functionNode, flow, function() {
+            var n1 = helper.getNode("n1");
+            var n2 = helper.getNode("n2");
+            n2.on("input", function(msg) {
+                msg.should.have.property('topic', 'bar');
+                msg.should.have.property('payload', 'foo');
+                done();
+            });
+            n1.receive({payload:"foo",topic: "bar"});
+        });
+    });
+
+    it('should pass through _topic', function(done) {
+        var flow = [{id:"n1",type:"function",wires:[["n2"]],func:"return msg;"},
+            {id:"n2", type:"helper"}];
+        helper.load(functionNode, flow, function() {
+            var n1 = helper.getNode("n1");
+            var n2 = helper.getNode("n2");
+            n2.on("input", function(msg) {
+                msg.should.have.property('topic', 'bar');
+                msg.should.have.property('payload', 'foo');
+                msg.should.have.property('_topic', 'baz');
+                done();
+            });
+            n1.receive({payload:"foo",topic: "bar", _topic: "baz"});
+        });
+    });
+
+    it('should send to multiple outputs', function(done) {
+        var flow = [{id:"n1",type:"function",wires:[["n2"],["n3"]],
+            func:"return [{payload: '1'},{payload: '2'}];"},
+            {id:"n2", type:"helper"}, {id:"n3", type:"helper"} ];
+        helper.load(functionNode, flow, function() {
+            var n1 = helper.getNode("n1");
+            var n2 = helper.getNode("n2");
+            var n3 = helper.getNode("n3");
+            var count = 0;
+            n2.on("input", function(msg) {
+                should(msg).have.property('payload', '1');
+                count++;
+                if (count == 2) {
+                    done();
+                }
+            });
+            n3.on("input", function(msg) {
+                should(msg).have.property('payload', '2');
+                count++;
+                if (count == 2) {
+                    done();
+                }
+            });
+            n1.receive({payload:"foo",topic: "bar"});
+        });
+    });
+
+    it('should send to multiple messages', function(done) {
+        var flow = [{id:"n1",type:"function",wires:[["n2"]],
+            func:"return [[{payload: 1},{payload: 2}]];"},
+            {id:"n2", type:"helper"} ];
+        helper.load(functionNode, flow, function() {
+            var n1 = helper.getNode("n1");
+            var n2 = helper.getNode("n2");
+            var count = 0;
+            n2.on("input", function(msg) {
+                count++;
+                try {
+                    should(msg).have.property('payload', count);
+                    should(msg).have.property('_msgid', 1234);
+                    if (count == 2) {
+                        done();
+                    }
+                } catch(err) {
+                    done(err);
+                }
+            });
+            n1.receive({payload:"foo", topic: "bar",_msgid:1234});
+        });
+    });
+
+    it('should allow input to be discarded by returning null', function(done) {
+        var flow = [{id:"n1",type:"function",wires:[["n2"]],func:"return null"},
+            {id:"n2", type:"helper"}];
+        helper.load(functionNode, flow, function() {
+            var n1 = helper.getNode("n1");
+            var n2 = helper.getNode("n2");
+            setTimeout(function() {
+                done();
+            }, 20);
+            n2.on("input", function(msg) {
+                should.fail(null,null,"unexpected message");
+            });
+            n1.receive({payload:"foo",topic: "bar"});
+        });
+    });
+
+    it('should handle null amongst valid messages', function(done) {
+        var flow = [{id:"n1",type:"function",wires:[["n2"],["n3"]],func:"return [[msg,null,msg],null]"},
+            {id:"n2", type:"helper"},
+            {id:"n3", type:"helper"}];
+        helper.load(functionNode, flow, function() {
+            var n1 = helper.getNode("n1");
+            var n2 = helper.getNode("n2");
+            var n3 = helper.getNode("n3");
+            var n2MsgCount = 0;
+            var n3MsgCount = 0;
+            n2.on("input", function(msg) {
+                n2MsgCount++;
+            });
+            n3.on("input", function(msg) {
+                n3MsgCount++;
+            });
+            n1.receive({payload:"foo",topic: "bar"});
+            setTimeout(function() {
+                n2MsgCount.should.equal(2);
+                n3MsgCount.should.equal(0);
+                done();
+            },20);
+        });
+    });
+
+    it('should get keys in global context', function(done) {
+        var flow = [{id:"n1",type:"function",wires:[["n2"]],func:"msg.payload=global.keys();return msg;"},
+            {id:"n2", type:"helper"}];
+        helper.load(functionNode, flow, function() {
+            var n1 = helper.getNode("n1");
+            var n2 = helper.getNode("n2");
+            n1.context().global.set("count","0");
+            n2.on("input", function(msg) {
+                msg.should.have.property('topic', 'bar');
+                msg.should.have.property('payload', ['count']);
+                done();
+            });
+            n1.receive({payload:"foo",topic: "bar"});
+        });
+    });
+
+    function testNonObjectMessage(functionText,done) {
+        var flow = [{id:"n1",type:"function",wires:[["n2"]],func:functionText},
+            {id:"n2", type:"helper"}];
+        helper.load(functionNode, flow, function() {
+            var n1 = helper.getNode("n1");
+            var n2 = helper.getNode("n2");
+            var n2MsgCount = 0;
+            n2.on("input", function(msg) {
+                n2MsgCount++;
+            });
+            n1.receive({});
+            setTimeout(function() {
+                try {
+                    n2MsgCount.should.equal(0);
+                    var logEvents = helper.log().args.filter(function(evt) {
+                        return evt[0].type == "function";
+                    });
+                    logEvents.should.have.length(1);
+                    var msg = logEvents[0][0];
+                    msg.should.have.property('level', helper.log().ERROR);
+                    msg.should.have.property('id', 'n1');
+                    msg.should.have.property('type', 'function');
+                    msg.should.have.property('msg', 'function.error.non-message-returned');
+                    done();
+                } catch(err) {
+                    done(err);
+                }
+            },20);
+        });
+    }
+    it('should drop and log non-object message types - string', function(done) {
+        testNonObjectMessage('return "foo"', done)
+    });
+    it('should drop and log non-object message types - buffer', function(done) {
+        testNonObjectMessage('return new Buffer("hello")', done)
+    });
+    it('should drop and log non-object message types - array', function(done) {
+        testNonObjectMessage('return [[[1,2,3]]]', done)
+    });
+    it('should drop and log non-object message types - boolean', function(done) {
+        testNonObjectMessage('return true', done)
+    });
+    it('should drop and log non-object message types - number', function(done) {
+        testNonObjectMessage('return 123', done)
+    });
+
+    it('should handle and log script error', function(done) {
+        var flow = [{id:"n1",type:"function",wires:[["n2"]],func:"retunr"}];
+        helper.load(functionNode, flow, function() {
+            var n1 = helper.getNode("n1");
+            n1.receive({payload:"foo",topic: "bar"});
+            try {
+                helper.log().called.should.be.true();
+                var logEvents = helper.log().args.filter(function(evt) {
+                    return evt[0].type == "function";
+                });
+                logEvents.should.have.length(1);
+                var msg = logEvents[0][0];
+                msg.should.have.property('level', helper.log().ERROR);
+                msg.should.have.property('id', 'n1');
+                msg.should.have.property('type', 'function');
+                msg.should.have.property('msg', 'ReferenceError: retunr is not defined (line 1, col 1)');
+                done();
+            } catch(err) {
+                done(err);
+            }
+        });
+    });
+
+    it('should handle node.on()', function(done) {
+        var flow = [{id:"n1",type:"function",wires:[["n2"]],func:"node.on('close',function(){node.log('closed')});"}];
+        helper.load(functionNode, flow, function() {
+            var n1 = helper.getNode("n1");
+            n1.receive({payload:"foo",topic: "bar"});
+            helper.getNode("n1").close();
+            try {
+                helper.log().called.should.be.true();
+                var logEvents = helper.log().args.filter(function(evt) {
+                    return evt[0].type == "function";
+                });
+                logEvents.should.have.length(1);
+                var msg = logEvents[0][0];
+                msg.should.have.property('level', helper.log().INFO);
+                msg.should.have.property('id', 'n1');
+                msg.should.have.property('type', 'function');
+                msg.should.have.property('msg', 'closed');
+                done();
+            } catch(err) {
+                done(err);
+            }
+        });
+    });
+
+    it('should set node context', function(done) {
+        var flow = [{id:"n1",type:"function",wires:[["n2"]],func:"context.set('count','0');return msg;"},
+            {id:"n2", type:"helper"}];
+        helper.load(functionNode, flow, function() {
+            var n1 = helper.getNode("n1");
+            var n2 = helper.getNode("n2");
+            n2.on("input", function(msg) {
+                msg.should.have.property('topic', 'bar');
+                msg.should.have.property('payload', 'foo');
+                n1.context().get("count").should.equal("0");
+                done();
+            });
+            n1.receive({payload:"foo",topic: "bar"});
+        });
+    });
+
+    it('should get node context', function(done) {
+        var flow = [{id:"n1",type:"function",wires:[["n2"]],func:"msg.payload=context.get('count');return msg;"},
+            {id:"n2", type:"helper"}];
+        helper.load(functionNode, flow, function() {
+            var n1 = helper.getNode("n1");
+            var n2 = helper.getNode("n2");
+            n1.context().set("count","0");
+            n2.on("input", function(msg) {
+                msg.should.have.property('topic', 'bar');
+                msg.should.have.property('payload', '0');
+                done();
+            });
+            n1.receive({payload:"foo",topic: "bar"});
+        });
+    });
+
+    it('should get keys in node context', function(done) {
+        var flow = [{id:"n1",type:"function",wires:[["n2"]],func:"msg.payload=context.keys();return msg;"},
+            {id:"n2", type:"helper"}];
+        helper.load(functionNode, flow, function() {
+            var n1 = helper.getNode("n1");
+            var n2 = helper.getNode("n2");
+            n1.context().set("count","0");
+            n2.on("input", function(msg) {
+                msg.should.have.property('topic', 'bar');
+                msg.should.have.property('payload', ['count']);
+                done();
+            });
+            n1.receive({payload:"foo",topic: "bar"});
+        });
+    });
+
+    it('should set flow context', function(done) {
+        var flow = [{id:"n1",type:"function",z:"flowA",wires:[["n2"]],func:"flow.set('count','0');return msg;"},
+            {id:"n2", type:"helper",z:"flowA"}];
+        helper.load(functionNode, flow, function() {
+            var n1 = helper.getNode("n1");
+            var n2 = helper.getNode("n2");
+            n2.on("input", function(msg) {
+                msg.should.have.property('topic', 'bar');
+                msg.should.have.property('payload', 'foo');
+                n2.context().flow.get("count").should.equal("0");
+                done();
+            });
+            n1.receive({payload:"foo",topic: "bar"});
+        });
+    });
+
+    it('should get flow context', function(done) {
+        var flow = [{id:"n1",type:"function",z:"flowA",wires:[["n2"]],func:"msg.payload=flow.get('count');return msg;"},
+            {id:"n2", type:"helper",z:"flowA"}];
+        helper.load(functionNode, flow, function() {
+            var n1 = helper.getNode("n1");
+            var n2 = helper.getNode("n2");
+            n1.context().flow.set("count","0");
+            n2.on("input", function(msg) {
+                msg.should.have.property('topic', 'bar');
+                msg.should.have.property('payload', '0');
+                done();
+            });
+            n1.receive({payload:"foo",topic: "bar"});
+        });
+    });
+
+    it('should get flow context', function(done) {
+        var flow = [{id:"n1",type:"function",z:"flowA",wires:[["n2"]],func:"msg.payload=context.flow.get('count');return msg;"},
+            {id:"n2", type:"helper",z:"flowA"}];
+        helper.load(functionNode, flow, function() {
+            var n1 = helper.getNode("n1");
+            var n2 = helper.getNode("n2");
+            n1.context().flow.set("count","0");
+            n2.on("input", function(msg) {
+                msg.should.have.property('topic', 'bar');
+                msg.should.have.property('payload', '0');
+                done();
+            });
+            n1.receive({payload:"foo",topic: "bar"});
+        });
+    });
+
+    it('should get keys in flow context', function(done) {
+        var flow = [{id:"n1",type:"function",z:"flowA",wires:[["n2"]],func:"msg.payload=flow.keys();return msg;"},
+            {id:"n2", type:"helper",z:"flowA"}];
+        helper.load(functionNode, flow, function() {
+            var n1 = helper.getNode("n1");
+            var n2 = helper.getNode("n2");
+            n1.context().flow.set("count","0");
+            n2.on("input", function(msg) {
+                msg.should.have.property('topic', 'bar');
+                msg.should.have.property('payload', ['count']);
+                done();
+            });
+            n1.receive({payload:"foo",topic: "bar"});
+        });
+    });
+
+    it('should set global context', function(done) {
+        var flow = [{id:"n1",type:"function",wires:[["n2"]],func:"global.set('count','0');return msg;"},
+            {id:"n2", type:"helper"}];
+        helper.load(functionNode, flow, function() {
+            var n1 = helper.getNode("n1");
+            var n2 = helper.getNode("n2");
+            n2.on("input", function(msg) {
+                msg.should.have.property('topic', 'bar');
+                msg.should.have.property('payload', 'foo');
+                n2.context().global.get("count").should.equal("0");
+                done();
+            });
+            n1.receive({payload:"foo",topic: "bar"});
+        });
+    });
+
+    it('should get global context', function(done) {
+        var flow = [{id:"n1",type:"function",wires:[["n2"]],func:"msg.payload=global.get('count');return msg;"},
+            {id:"n2", type:"helper"}];
+        helper.load(functionNode, flow, function() {
+            var n1 = helper.getNode("n1");
+            var n2 = helper.getNode("n2");
+            n1.context().global.set("count","0");
+            n2.on("input", function(msg) {
+                msg.should.have.property('topic', 'bar');
+                msg.should.have.property('payload', '0');
+                done();
+            });
+            n1.receive({payload:"foo",topic: "bar"});
+        });
+    });
+
+    it('should get global context', function(done) {
+        var flow = [{id:"n1",type:"function",wires:[["n2"]],func:"msg.payload=context.global.get('count');return msg;"},
+            {id:"n2", type:"helper"}];
+        helper.load(functionNode, flow, function() {
+            var n1 = helper.getNode("n1");
+            var n2 = helper.getNode("n2");
+            n1.context().global.set("count","0");
+            n2.on("input", function(msg) {
+                msg.should.have.property('topic', 'bar');
+                msg.should.have.property('payload', '0');
+                done();
+            });
+            n1.receive({payload:"foo",topic: "bar"});
+        });
+    });
+
+    it('should handle setTimeout()', function(done) {
+        var flow = [{id:"n1",type:"function",wires:[["n2"]],func:"setTimeout(function(){node.send(msg);},1000);"},
+            {id:"n2", type:"helper"}];
+        helper.load(functionNode, flow, function() {
+            var n1 = helper.getNode("n1");
+            var n2 = helper.getNode("n2");
+            n2.on("input", function(msg) {
+                var endTime = process.hrtime(startTime);
+                var nanoTime = endTime[0] * 1000000000 + endTime[1];
+                msg.should.have.property('topic', 'bar');
+                msg.should.have.property('payload', 'foo');
+                if (900000000 < nanoTime && nanoTime < 1100000000) {
+                    done();
+                } else {
+                    try {
+                        should.fail(null, null, "Delayed time was not between 900 and 1100 ms");
+                    } catch (err) {
+                        done(err);
+                    }
+                }
+            });
+            var startTime = process.hrtime();
+            n1.receive({payload:"foo",topic: "bar"});
+        });
+    });
+
+    it('should handle setInterval()', function(done) {
+        var flow = [{id:"n1",type:"function",wires:[["n2"]],func:"setInterval(function(){node.send(msg);},100);"},
+            {id:"n2", type:"helper"}];
+        helper.load(functionNode, flow, function() {
+            var n1 = helper.getNode("n1");
+            var n2 = helper.getNode("n2");
+            var count = 0;
+            n2.on("input", function(msg) {
+                msg.should.have.property('topic', 'bar');
+                msg.should.have.property('payload', 'foo');
+                count++;
+                if (count > 2) {
+                    done();
+                }
+            });
+            n1.receive({payload:"foo",topic: "bar"});
+        });
+    });
+
+    it('should handle clearInterval()', function(done) {
+        var flow = [{id:"n1",type:"function",wires:[["n2"]],func:"var id=setInterval(null,100);setTimeout(function(){clearInterval(id);node.send(msg);},1000);"},
+            {id:"n2", type:"helper"}];
+        helper.load(functionNode, flow, function() {
+            var n1 = helper.getNode("n1");
+            var n2 = helper.getNode("n2");
+            n2.on("input", function(msg) {
+                msg.should.have.property('topic', 'bar');
+                msg.should.have.property('payload', 'foo');
+                done();
+            });
+            n1.receive({payload:"foo",topic: "bar"});
+        });
+    });
+
+    describe('Logger', function () {
+        it('should log an Info Message', function (done) {
+            var flow = [{id: "n1", type: "function", wires: [["n2"]], func: "node.log('test');"}];
+            helper.load(functionNode, flow, function () {
+                var n1 = helper.getNode("n1");
+                n1.receive({payload: "foo", topic: "bar"});
+                try {
+                    helper.log().called.should.be.true();
+                    var logEvents = helper.log().args.filter(function (evt) {
+                        return evt[0].type == "function";
+                    });
+                    logEvents.should.have.length(1);
+                    var msg = logEvents[0][0];
+                    msg.should.have.property('level', helper.log().INFO);
+                    msg.should.have.property('id', 'n1');
+                    msg.should.have.property('type', 'function');
+                    msg.should.have.property('msg', 'test');
+                    done();
+                } catch (err) {
+                    done(err);
+                }
+            });
+        });
+        it('should log a Warning Message', function (done) {
+            var flow = [{id: "n1", type: "function", wires: [["n2"]], func: "node.warn('test');"}];
+            helper.load(functionNode, flow, function () {
+                var n1 = helper.getNode("n1");
+                n1.receive({payload: "foo", topic: "bar"});
+                try {
+                    helper.log().called.should.be.true();
+                    var logEvents = helper.log().args.filter(function (evt) {
+                        return evt[0].type == "function";
+                    });
+                    logEvents.should.have.length(1);
+                    var msg = logEvents[0][0];
+                    msg.should.have.property('level', helper.log().WARN);
+                    msg.should.have.property('id', 'n1');
+                    msg.should.have.property('type', 'function');
+                    msg.should.have.property('msg', 'test');
+                    done();
+                } catch (err) {
+                    done(err);
+                }
+            });
+        });
+        it('should log an Error Message', function (done) {
+            var flow = [{id: "n1", type: "function", wires: [["n2"]], func: "node.error('test');"}];
+            helper.load(functionNode, flow, function () {
+                var n1 = helper.getNode("n1");
+                n1.receive({payload: "foo", topic: "bar"});
+                try {
+                    helper.log().called.should.be.true();
+                    var logEvents = helper.log().args.filter(function (evt) {
+                        return evt[0].type == "function";
+                    });
+                    logEvents.should.have.length(1);
+                    var msg = logEvents[0][0];
+                    msg.should.have.property('level', helper.log().ERROR);
+                    msg.should.have.property('id', 'n1');
+                    msg.should.have.property('type', 'function');
+                    msg.should.have.property('msg', 'test');
+                    done();
+                } catch (err) {
+                    done(err);
+                }
+            });
+        });
+    });
+
+});
diff --git a/examples/lower-case_async_spec.js b/examples/lower-case_async_spec.js
new file mode 100644
index 0000000..39dc55e
--- /dev/null
+++ b/examples/lower-case_async_spec.js
@@ -0,0 +1,45 @@
+var helper = require("../index.js");
+var lowerNode = require("./nodes/lower-case.js");
+
+helper.init(require.resolve('node-red'));
+
+describe('lower-case Node', function () {
+
+  afterEach(function () {
+    helper.unload();
+  });
+
+  it('should be loaded', function (done) {
+    var flow = [{ id: "n1", type: "lower-case", name: "lower-case" }];
+    helper.load(lowerNode, flow, function () {
+      var n1 = helper.getNode("n1");
+      n1.should.have.property('name', 'lower-case');
+      done();
+    });
+  });
+
+  it('should be loaded in exported flow', function (done) {
+    var flow = [{"id":"3912a37a.c3818c","type":"lower-case","z":"e316ac4b.c85a2","name":"lower-case","x":240,"y":320,"wires":[[]]}];
+    helper.load(lowerNode, flow, function () {
+      var n1 = helper.getNode("3912a37a.c3818c");
+      n1.should.have.property('name', 'lower-case');
+      done();
+    });
+  });
+
+  it('should make payload lower case', function (done) {
+    var flow = [
+      { id: "n1", type: "lower-case", name: "test name",wires:[["n2"]] },
+      { id: "n2", type: "helper" }
+    ];
+    helper.load(lowerNode, flow, function () {
+      var n2 = helper.getNode("n2");
+      var n1 = helper.getNode("n1");
+      n2.on("input", function (msg) {
+        msg.should.have.property('payload', 'uppercase');
+        done();
+      });
+      n1.receive({ payload: "UpperCase" });
+    });
+  });
+});

From 22b64df0379029e00d418e1adc43a17f8d27f8ba Mon Sep 17 00:00:00 2001
From: Niels Ulrik Andersen <niels@myplace.dk>
Date: Sun, 18 Nov 2018 20:12:32 +0100
Subject: [PATCH 6/8] Change callbacks to promises (and a few callbacks to
 arrow-style)

---
 examples/comment_async_spec.js    |  14 +-
 examples/function_async_spec.js   | 790 +++++++++++++-----------------
 examples/lower-case_async_spec.js |  43 +-
 3 files changed, 369 insertions(+), 478 deletions(-)

diff --git a/examples/comment_async_spec.js b/examples/comment_async_spec.js
index 78f9b0c..1a37236 100644
--- a/examples/comment_async_spec.js
+++ b/examples/comment_async_spec.js
@@ -22,17 +22,15 @@ var commentNode = require("./nodes/90-comment.js");
 
 describe('comment Node', function() {
 
-    afterEach(function() {
-        helper.unload();
+    afterEach(async function() {
+        await helper.unload();
     });
 
-    it('should be loaded', function(done) {
+    it('should be loaded', async function() {
         var flow = [{id:"n1", type:"comment", name: "comment" }];
-        helper.load(commentNode, flow, function() {
-            var n1 = helper.getNode("n1");
-            n1.should.have.property('name', 'comment');
-            done();
-        });
+        await helper.load(commentNode, flow);
+        var n1 = helper.getNode("n1");
+        n1.should.have.property('name', 'comment');
     });
 
 });
diff --git a/examples/function_async_spec.js b/examples/function_async_spec.js
index 1791b18..866ed3a 100644
--- a/examples/function_async_spec.js
+++ b/examples/function_async_spec.js
@@ -20,562 +20,462 @@ helper.init(require.resolve('node-red'));
 
 var functionNode = require("./nodes/80-function.js");
 
+const sleep = ms => new Promise(resolve => setTimeout(resolve,ms));
+
 describe('function node', function() {
 
-    before(function(done) {
-        helper.startServer(done);
+    before(async function() {
+        await helper.startServer();
     });
 
-    after(function(done) {
-        helper.stopServer(done);
+    after(async function() {
+        await helper.stopServer();
     });
 
-    afterEach(function() {
-        helper.unload();
+    afterEach(async function() {
+        await helper.unload();
     });
 
-    it('should be loaded', function(done) {
+    it('should be loaded', async function() {
         var flow = [{id:"n1", type:"function", name: "function" }];
-        helper.load(functionNode, flow, function() {
-            var n1 = helper.getNode("n1");
-            n1.should.have.property('name', 'function');
-            done();
-        });
+        await helper.load(functionNode,flow);
+        var n1 = helper.getNode("n1");
+        n1.should.have.property('name', 'function');
     });
 
-    it('should send returned message', function(done) {
+    it('should send returned message', async function() {
         var flow = [{id:"n1",type:"function",wires:[["n2"]],func:"return msg;"},
-            {id:"n2", type:"helper"}];
-        helper.load(functionNode, flow, function() {
-            var n1 = helper.getNode("n1");
-            var n2 = helper.getNode("n2");
-            n2.on("input", function(msg) {
-                msg.should.have.property('topic', 'bar');
-                msg.should.have.property('payload', 'foo');
-                done();
-            });
-            n1.receive({payload:"foo",topic: "bar"});
-        });
+            {id:"n2",type:"helper"}];
+        await helper.load(functionNode, flow);
+        var n1 = helper.getNode("n1");
+        var n2 = helper.getNode("n2");
+
+        n1.receive({payload:"foo",topic:"bar"});
+        let msg = await n2.next("input");
+        msg.should.have.property('topic', 'bar');
+        msg.should.have.property('payload', 'foo');
     });
 
-    it('should send returned message using send()', function(done) {
+    it('should send returned message using send()', async function() {
         var flow = [{id:"n1",type:"function",wires:[["n2"]],func:"node.send(msg);"},
             {id:"n2", type:"helper"}];
-        helper.load(functionNode, flow, function() {
-            var n1 = helper.getNode("n1");
-            var n2 = helper.getNode("n2");
-            n2.on("input", function(msg) {
-                msg.should.have.property('topic', 'bar');
-                msg.should.have.property('payload', 'foo');
-                done();
-            });
-            n1.receive({payload:"foo",topic: "bar"});
-        });
+        await helper.load(functionNode, flow);
+        var n1 = helper.getNode("n1");
+        var n2 = helper.getNode("n2");
+
+        n1.receive({payload:"foo",topic:"bar"});
+        let msg = await n2.next("input");
+        msg.should.have.property('topic', 'bar');
+        msg.should.have.property('payload', 'foo');
     });
 
-    it('should pass through _topic', function(done) {
+    it('should pass through _topic', async function() {
         var flow = [{id:"n1",type:"function",wires:[["n2"]],func:"return msg;"},
             {id:"n2", type:"helper"}];
-        helper.load(functionNode, flow, function() {
-            var n1 = helper.getNode("n1");
-            var n2 = helper.getNode("n2");
-            n2.on("input", function(msg) {
-                msg.should.have.property('topic', 'bar');
-                msg.should.have.property('payload', 'foo');
-                msg.should.have.property('_topic', 'baz');
-                done();
-            });
-            n1.receive({payload:"foo",topic: "bar", _topic: "baz"});
-        });
+        await helper.load(functionNode, flow);
+        var n1 = helper.getNode("n1");
+        var n2 = helper.getNode("n2");
+
+        n1.receive({payload:"foo",topic:"bar", _topic:"baz"});
+        let msg = await n2.next("input");
+        msg.should.have.property('topic', 'bar');
+        msg.should.have.property('payload', 'foo');
+        msg.should.have.property('_topic', 'baz');
     });
 
-    it('should send to multiple outputs', function(done) {
+    it('should send to multiple outputs', async function() {
         var flow = [{id:"n1",type:"function",wires:[["n2"],["n3"]],
             func:"return [{payload: '1'},{payload: '2'}];"},
             {id:"n2", type:"helper"}, {id:"n3", type:"helper"} ];
-        helper.load(functionNode, flow, function() {
-            var n1 = helper.getNode("n1");
-            var n2 = helper.getNode("n2");
-            var n3 = helper.getNode("n3");
-            var count = 0;
-            n2.on("input", function(msg) {
-                should(msg).have.property('payload', '1');
-                count++;
-                if (count == 2) {
-                    done();
-                }
-            });
-            n3.on("input", function(msg) {
-                should(msg).have.property('payload', '2');
-                count++;
-                if (count == 2) {
-                    done();
-                }
-            });
-            n1.receive({payload:"foo",topic: "bar"});
-        });
+        await helper.load(functionNode, flow);
+        var n1 = helper.getNode("n1");
+        var n2 = helper.getNode("n2");
+        var n3 = helper.getNode("n3");
+
+        n1.receive({payload:"foo",topic:"bar"});
+        let msg = await n2.next("input");
+        should(msg).have.property('payload', '1');
+        msg = await n3.next("input");
+        should(msg).have.property('payload', '2');
     });
 
-    it('should send to multiple messages', function(done) {
+    it('should send to multiple messages', async function() {
         var flow = [{id:"n1",type:"function",wires:[["n2"]],
             func:"return [[{payload: 1},{payload: 2}]];"},
             {id:"n2", type:"helper"} ];
-        helper.load(functionNode, flow, function() {
-            var n1 = helper.getNode("n1");
-            var n2 = helper.getNode("n2");
-            var count = 0;
-            n2.on("input", function(msg) {
-                count++;
-                try {
-                    should(msg).have.property('payload', count);
-                    should(msg).have.property('_msgid', 1234);
-                    if (count == 2) {
-                        done();
-                    }
-                } catch(err) {
-                    done(err);
-                }
-            });
-            n1.receive({payload:"foo", topic: "bar",_msgid:1234});
-        });
+        await helper.load(functionNode, flow);
+        var n1 = helper.getNode("n1");
+        var n2 = helper.getNode("n2");
+
+        n1.receive({payload:"foo", topic: "bar",_msgid:1234});
+        let msg = await n2.next("input");
+        should(msg).have.property('payload', 1);
+        should(msg).have.property('_msgid', 1234);
+        msg = await n2.next("input");
+        should(msg).have.property('payload', 2);
+        should(msg).have.property('_msgid', 1234);
     });
 
-    it('should allow input to be discarded by returning null', function(done) {
+    it('should allow input to be discarded by returning null', async function() {
         var flow = [{id:"n1",type:"function",wires:[["n2"]],func:"return null"},
             {id:"n2", type:"helper"}];
-        helper.load(functionNode, flow, function() {
-            var n1 = helper.getNode("n1");
-            var n2 = helper.getNode("n2");
-            setTimeout(function() {
-                done();
-            }, 20);
-            n2.on("input", function(msg) {
-                should.fail(null,null,"unexpected message");
-            });
-            n1.receive({payload:"foo",topic: "bar"});
-        });
+        await helper.load(functionNode, flow);
+        var n1 = helper.getNode("n1");
+        var n2 = helper.getNode("n2");
+
+        n1.receive({payload:"foo",topic: "bar"});
+        await Promise.race([
+            n2.next("input").then(() => should.fail(null,null,"unexpected message")),
+            sleep(20)
+        ]);
     });
 
-    it('should handle null amongst valid messages', function(done) {
+    it('should handle null amongst valid messages', async function() {
         var flow = [{id:"n1",type:"function",wires:[["n2"],["n3"]],func:"return [[msg,null,msg],null]"},
             {id:"n2", type:"helper"},
             {id:"n3", type:"helper"}];
-        helper.load(functionNode, flow, function() {
-            var n1 = helper.getNode("n1");
-            var n2 = helper.getNode("n2");
-            var n3 = helper.getNode("n3");
-            var n2MsgCount = 0;
-            var n3MsgCount = 0;
-            n2.on("input", function(msg) {
-                n2MsgCount++;
-            });
-            n3.on("input", function(msg) {
-                n3MsgCount++;
-            });
-            n1.receive({payload:"foo",topic: "bar"});
-            setTimeout(function() {
-                n2MsgCount.should.equal(2);
-                n3MsgCount.should.equal(0);
-                done();
-            },20);
-        });
-    });
-
-    it('should get keys in global context', function(done) {
+        await helper.load(functionNode, flow);
+        var n1 = helper.getNode("n1");
+        var n2 = helper.getNode("n2");
+        var n3 = helper.getNode("n3");
+        var n2MsgCount = 0;
+        var n3MsgCount = 0;
+
+        n1.receive({payload:"foo",topic:"bar"});
+        await n2.next("input");
+        await n2.next("input");
+        await Promise.race([
+            n2.next("input").then(() => {should.fail(null,null,"unexpected message")}),
+            n3.next("input").then(() => {should.fail(null,null,"unexpected message")}),
+            sleep(20)
+        ]);
+    });
+
+    it('should get keys in global context', async function() {
         var flow = [{id:"n1",type:"function",wires:[["n2"]],func:"msg.payload=global.keys();return msg;"},
             {id:"n2", type:"helper"}];
-        helper.load(functionNode, flow, function() {
-            var n1 = helper.getNode("n1");
-            var n2 = helper.getNode("n2");
-            n1.context().global.set("count","0");
-            n2.on("input", function(msg) {
-                msg.should.have.property('topic', 'bar');
-                msg.should.have.property('payload', ['count']);
-                done();
-            });
-            n1.receive({payload:"foo",topic: "bar"});
-        });
+        await helper.load(functionNode, flow);
+        var n1 = helper.getNode("n1");
+        var n2 = helper.getNode("n2");
+        n1.context().global.set("count","0");
+        n1.receive({payload:"foo",topic: "bar"});
+        let msg = await n2.next("input");
+        msg.should.have.property('topic', 'bar');
+        msg.should.have.property('payload', ['count']);
     });
 
-    function testNonObjectMessage(functionText,done) {
+    async function testNonObjectMessage(functionText) {
         var flow = [{id:"n1",type:"function",wires:[["n2"]],func:functionText},
             {id:"n2", type:"helper"}];
-        helper.load(functionNode, flow, function() {
-            var n1 = helper.getNode("n1");
-            var n2 = helper.getNode("n2");
-            var n2MsgCount = 0;
-            n2.on("input", function(msg) {
-                n2MsgCount++;
-            });
-            n1.receive({});
-            setTimeout(function() {
-                try {
-                    n2MsgCount.should.equal(0);
-                    var logEvents = helper.log().args.filter(function(evt) {
-                        return evt[0].type == "function";
-                    });
-                    logEvents.should.have.length(1);
-                    var msg = logEvents[0][0];
-                    msg.should.have.property('level', helper.log().ERROR);
-                    msg.should.have.property('id', 'n1');
-                    msg.should.have.property('type', 'function');
-                    msg.should.have.property('msg', 'function.error.non-message-returned');
-                    done();
-                } catch(err) {
-                    done(err);
-                }
-            },20);
-        });
+        await helper.load(functionNode, flow);
+        var n1 = helper.getNode("n1");
+        var n2 = helper.getNode("n2");
+
+        n1.receive({});
+        await sleep(20);
+
+        var logEvents = helper.log().args.filter(evt => evt[0].type == "function");
+        logEvents.should.have.length(1);
+        let msg = logEvents[0][0];
+        msg.should.have.property('level', helper.log().ERROR);
+        msg.should.have.property('id', 'n1');
+        msg.should.have.property('type', 'function');
+        msg.should.have.property('msg', 'function.error.non-message-returned');
+
+        await Promise.race([
+            n2.next("input").then(() => {should.fail(null,null,"unexpected message")}),
+            sleep(20)
+        ]);
     }
-    it('should drop and log non-object message types - string', function(done) {
-        testNonObjectMessage('return "foo"', done)
+
+    it('should drop and log non-object message types - string', async function() {
+        await testNonObjectMessage('return "foo"')
     });
-    it('should drop and log non-object message types - buffer', function(done) {
-        testNonObjectMessage('return new Buffer("hello")', done)
+    it('should drop and log non-object message types - buffer', async function() {
+        await testNonObjectMessage('return new Buffer("hello")')
     });
-    it('should drop and log non-object message types - array', function(done) {
-        testNonObjectMessage('return [[[1,2,3]]]', done)
+    it('should drop and log non-object message types - array', async function() {
+        await testNonObjectMessage('return [[[1,2,3]]]')
     });
-    it('should drop and log non-object message types - boolean', function(done) {
-        testNonObjectMessage('return true', done)
+    it('should drop and log non-object message types - boolean', async function() {
+        await testNonObjectMessage('return true')
     });
-    it('should drop and log non-object message types - number', function(done) {
-        testNonObjectMessage('return 123', done)
+    it('should drop and log non-object message types - number', async function() {
+        await testNonObjectMessage('return 123')
     });
 
-    it('should handle and log script error', function(done) {
+    it('should handle and log script error', async function() {
         var flow = [{id:"n1",type:"function",wires:[["n2"]],func:"retunr"}];
-        helper.load(functionNode, flow, function() {
-            var n1 = helper.getNode("n1");
-            n1.receive({payload:"foo",topic: "bar"});
-            try {
-                helper.log().called.should.be.true();
-                var logEvents = helper.log().args.filter(function(evt) {
-                    return evt[0].type == "function";
-                });
-                logEvents.should.have.length(1);
-                var msg = logEvents[0][0];
-                msg.should.have.property('level', helper.log().ERROR);
-                msg.should.have.property('id', 'n1');
-                msg.should.have.property('type', 'function');
-                msg.should.have.property('msg', 'ReferenceError: retunr is not defined (line 1, col 1)');
-                done();
-            } catch(err) {
-                done(err);
-            }
-        });
-    });
+        await helper.load(functionNode, flow);
+        var n1 = helper.getNode("n1");
 
-    it('should handle node.on()', function(done) {
-        var flow = [{id:"n1",type:"function",wires:[["n2"]],func:"node.on('close',function(){node.log('closed')});"}];
-        helper.load(functionNode, flow, function() {
-            var n1 = helper.getNode("n1");
-            n1.receive({payload:"foo",topic: "bar"});
-            helper.getNode("n1").close();
-            try {
-                helper.log().called.should.be.true();
-                var logEvents = helper.log().args.filter(function(evt) {
-                    return evt[0].type == "function";
-                });
-                logEvents.should.have.length(1);
-                var msg = logEvents[0][0];
-                msg.should.have.property('level', helper.log().INFO);
-                msg.should.have.property('id', 'n1');
-                msg.should.have.property('type', 'function');
-                msg.should.have.property('msg', 'closed');
-                done();
-            } catch(err) {
-                done(err);
-            }
-        });
+        n1.receive({payload:"foo",topic: "bar"});
+        helper.log().called.should.be.true();
+        var logEvents = helper.log().args.filter(evt => evt[0].type == "function");
+        logEvents.should.have.length(1);
+        var msg = logEvents[0][0];
+        msg.should.have.property('level', helper.log().ERROR);
+        msg.should.have.property('id', 'n1');
+        msg.should.have.property('type', 'function');
+        msg.should.have.property('msg', 'ReferenceError: retunr is not defined (line 1, col 1)');
     });
 
-    it('should set node context', function(done) {
+    it('should handle node.on()', async function() {
+        var flow = [{id:"n1",type:"function",wires:[["n2"]],func:"node.on('close',function(){node.log('closed')});"}];
+        await helper.load(functionNode, flow);
+        var n1 = helper.getNode("n1");
+
+        n1.receive({payload:"foo",topic: "bar"});
+        helper.getNode("n1").close();
+        helper.log().called.should.be.true();
+        var logEvents = helper.log().args.filter(evt => evt[0].type == "function");
+        logEvents.should.have.length(1);
+        var msg = logEvents[0][0];
+        msg.should.have.property('level', helper.log().INFO);
+        msg.should.have.property('id', 'n1');
+        msg.should.have.property('type', 'function');
+        msg.should.have.property('msg', 'closed');
+    });
+
+    it('should set node context', async function() {
         var flow = [{id:"n1",type:"function",wires:[["n2"]],func:"context.set('count','0');return msg;"},
             {id:"n2", type:"helper"}];
-        helper.load(functionNode, flow, function() {
-            var n1 = helper.getNode("n1");
-            var n2 = helper.getNode("n2");
-            n2.on("input", function(msg) {
-                msg.should.have.property('topic', 'bar');
-                msg.should.have.property('payload', 'foo');
-                n1.context().get("count").should.equal("0");
-                done();
-            });
-            n1.receive({payload:"foo",topic: "bar"});
-        });
+        await helper.load(functionNode, flow);
+        var n1 = helper.getNode("n1");
+        var n2 = helper.getNode("n2");
+
+        n1.receive({payload:"foo",topic: "bar"});
+        let msg = await n2.next("input");
+        msg.should.have.property('topic', 'bar');
+        msg.should.have.property('payload', 'foo');
+        n1.context().get("count").should.equal("0");
     });
 
-    it('should get node context', function(done) {
+    it('should get node context', async function() {
         var flow = [{id:"n1",type:"function",wires:[["n2"]],func:"msg.payload=context.get('count');return msg;"},
             {id:"n2", type:"helper"}];
-        helper.load(functionNode, flow, function() {
-            var n1 = helper.getNode("n1");
-            var n2 = helper.getNode("n2");
-            n1.context().set("count","0");
-            n2.on("input", function(msg) {
-                msg.should.have.property('topic', 'bar');
-                msg.should.have.property('payload', '0');
-                done();
-            });
-            n1.receive({payload:"foo",topic: "bar"});
-        });
+        await helper.load(functionNode, flow);
+        var n1 = helper.getNode("n1");
+        var n2 = helper.getNode("n2");
+        n1.context().set("count","0");
+
+        n1.receive({payload:"foo",topic: "bar"});
+        let msg = await n2.next("input");
+        msg.should.have.property('topic', 'bar');
+        msg.should.have.property('payload', '0');
     });
 
-    it('should get keys in node context', function(done) {
+    it('should get keys in node context', async function() {
         var flow = [{id:"n1",type:"function",wires:[["n2"]],func:"msg.payload=context.keys();return msg;"},
             {id:"n2", type:"helper"}];
-        helper.load(functionNode, flow, function() {
-            var n1 = helper.getNode("n1");
-            var n2 = helper.getNode("n2");
-            n1.context().set("count","0");
-            n2.on("input", function(msg) {
-                msg.should.have.property('topic', 'bar');
-                msg.should.have.property('payload', ['count']);
-                done();
-            });
-            n1.receive({payload:"foo",topic: "bar"});
-        });
+        await helper.load(functionNode, flow);
+        var n1 = helper.getNode("n1");
+        var n2 = helper.getNode("n2");
+        n1.context().set("count","0");
+
+        n1.receive({payload:"foo",topic: "bar"});
+        let msg = await n2.next("input");
+        msg.should.have.property('topic', 'bar');
+        msg.should.have.property('payload', ['count']);
     });
 
-    it('should set flow context', function(done) {
+    it('should set flow context', async function() {
         var flow = [{id:"n1",type:"function",z:"flowA",wires:[["n2"]],func:"flow.set('count','0');return msg;"},
             {id:"n2", type:"helper",z:"flowA"}];
-        helper.load(functionNode, flow, function() {
-            var n1 = helper.getNode("n1");
-            var n2 = helper.getNode("n2");
-            n2.on("input", function(msg) {
-                msg.should.have.property('topic', 'bar');
-                msg.should.have.property('payload', 'foo');
-                n2.context().flow.get("count").should.equal("0");
-                done();
-            });
-            n1.receive({payload:"foo",topic: "bar"});
-        });
+        await helper.load(functionNode, flow);
+        var n1 = helper.getNode("n1");
+        var n2 = helper.getNode("n2");
+
+        n1.receive({payload:"foo",topic: "bar"});
+        let msg = await n2.next("input");
+        msg.should.have.property('topic', 'bar');
+        msg.should.have.property('payload', 'foo');
+        n2.context().flow.get("count").should.equal("0");
     });
 
-    it('should get flow context', function(done) {
+    it('should get flow context', async function() {
         var flow = [{id:"n1",type:"function",z:"flowA",wires:[["n2"]],func:"msg.payload=flow.get('count');return msg;"},
             {id:"n2", type:"helper",z:"flowA"}];
-        helper.load(functionNode, flow, function() {
-            var n1 = helper.getNode("n1");
-            var n2 = helper.getNode("n2");
-            n1.context().flow.set("count","0");
-            n2.on("input", function(msg) {
-                msg.should.have.property('topic', 'bar');
-                msg.should.have.property('payload', '0');
-                done();
-            });
-            n1.receive({payload:"foo",topic: "bar"});
-        });
+        await helper.load(functionNode, flow);
+        var n1 = helper.getNode("n1");
+        var n2 = helper.getNode("n2");
+
+        n1.context().flow.set("count","0");
+        n1.receive({payload:"foo",topic: "bar"});
+        let msg = await n2.next("input");
+        msg.should.have.property('topic', 'bar');
+        msg.should.have.property('payload', '0');
     });
 
-    it('should get flow context', function(done) {
+    it('should get flow context', async function() {
         var flow = [{id:"n1",type:"function",z:"flowA",wires:[["n2"]],func:"msg.payload=context.flow.get('count');return msg;"},
             {id:"n2", type:"helper",z:"flowA"}];
-        helper.load(functionNode, flow, function() {
-            var n1 = helper.getNode("n1");
-            var n2 = helper.getNode("n2");
-            n1.context().flow.set("count","0");
-            n2.on("input", function(msg) {
-                msg.should.have.property('topic', 'bar');
-                msg.should.have.property('payload', '0');
-                done();
-            });
-            n1.receive({payload:"foo",topic: "bar"});
-        });
+        await helper.load(functionNode, flow);
+        var n1 = helper.getNode("n1");
+        var n2 = helper.getNode("n2");
+        n1.context().flow.set("count","0");
+
+        n1.receive({payload:"foo",topic: "bar"});
+        let msg = await n2.next("input");
+        msg.should.have.property('topic', 'bar');
+        msg.should.have.property('payload', '0');
     });
 
-    it('should get keys in flow context', function(done) {
+    it('should get keys in flow context', async function() {
         var flow = [{id:"n1",type:"function",z:"flowA",wires:[["n2"]],func:"msg.payload=flow.keys();return msg;"},
             {id:"n2", type:"helper",z:"flowA"}];
-        helper.load(functionNode, flow, function() {
-            var n1 = helper.getNode("n1");
-            var n2 = helper.getNode("n2");
-            n1.context().flow.set("count","0");
-            n2.on("input", function(msg) {
-                msg.should.have.property('topic', 'bar');
-                msg.should.have.property('payload', ['count']);
-                done();
-            });
-            n1.receive({payload:"foo",topic: "bar"});
-        });
+        await helper.load(functionNode, flow);
+        var n1 = helper.getNode("n1");
+        var n2 = helper.getNode("n2");
+        n1.context().flow.set("count","0");
+
+        n1.receive({payload:"foo",topic: "bar"});
+        let msg = await n2.next("input");
+        msg.should.have.property('topic', 'bar');
+        msg.should.have.property('payload', ['count']);
     });
 
-    it('should set global context', function(done) {
+    it('should set global context', async function() {
         var flow = [{id:"n1",type:"function",wires:[["n2"]],func:"global.set('count','0');return msg;"},
             {id:"n2", type:"helper"}];
-        helper.load(functionNode, flow, function() {
-            var n1 = helper.getNode("n1");
-            var n2 = helper.getNode("n2");
-            n2.on("input", function(msg) {
-                msg.should.have.property('topic', 'bar');
-                msg.should.have.property('payload', 'foo');
-                n2.context().global.get("count").should.equal("0");
-                done();
-            });
-            n1.receive({payload:"foo",topic: "bar"});
-        });
+        await helper.load(functionNode, flow);
+        var n1 = helper.getNode("n1");
+        var n2 = helper.getNode("n2");
+
+        n1.receive({payload:"foo",topic: "bar"});
+        let msg = await n2.next("input");
+        msg.should.have.property('topic', 'bar');
+        msg.should.have.property('payload', 'foo');
+        n2.context().global.get("count").should.equal("0");
     });
 
-    it('should get global context', function(done) {
+    it('should get global context', async function() {
         var flow = [{id:"n1",type:"function",wires:[["n2"]],func:"msg.payload=global.get('count');return msg;"},
             {id:"n2", type:"helper"}];
-        helper.load(functionNode, flow, function() {
-            var n1 = helper.getNode("n1");
-            var n2 = helper.getNode("n2");
-            n1.context().global.set("count","0");
-            n2.on("input", function(msg) {
-                msg.should.have.property('topic', 'bar');
-                msg.should.have.property('payload', '0');
-                done();
-            });
-            n1.receive({payload:"foo",topic: "bar"});
-        });
+        await helper.load(functionNode, flow);
+        var n1 = helper.getNode("n1");
+        var n2 = helper.getNode("n2");
+        n1.context().global.set("count","0");
+
+        n1.receive({payload:"foo",topic: "bar"});
+        let msg = await n2.next("input");
+        msg.should.have.property('topic', 'bar');
+        msg.should.have.property('payload', '0');
     });
 
-    it('should get global context', function(done) {
+    it('should get global context', async function() {
         var flow = [{id:"n1",type:"function",wires:[["n2"]],func:"msg.payload=context.global.get('count');return msg;"},
             {id:"n2", type:"helper"}];
-        helper.load(functionNode, flow, function() {
-            var n1 = helper.getNode("n1");
-            var n2 = helper.getNode("n2");
-            n1.context().global.set("count","0");
-            n2.on("input", function(msg) {
-                msg.should.have.property('topic', 'bar');
-                msg.should.have.property('payload', '0');
-                done();
-            });
-            n1.receive({payload:"foo",topic: "bar"});
-        });
+        await helper.load(functionNode, flow);
+        var n1 = helper.getNode("n1");
+        var n2 = helper.getNode("n2");
+        n1.context().global.set("count","0");
+
+        n1.receive({payload:"foo",topic: "bar"});
+        let msg = await n2.next("input");
+        msg.should.have.property('topic', 'bar');
+        msg.should.have.property('payload', '0');
     });
 
-    it('should handle setTimeout()', function(done) {
+    it('should handle setTimeout()', async function() {
         var flow = [{id:"n1",type:"function",wires:[["n2"]],func:"setTimeout(function(){node.send(msg);},1000);"},
             {id:"n2", type:"helper"}];
-        helper.load(functionNode, flow, function() {
-            var n1 = helper.getNode("n1");
-            var n2 = helper.getNode("n2");
-            n2.on("input", function(msg) {
-                var endTime = process.hrtime(startTime);
-                var nanoTime = endTime[0] * 1000000000 + endTime[1];
-                msg.should.have.property('topic', 'bar');
-                msg.should.have.property('payload', 'foo');
-                if (900000000 < nanoTime && nanoTime < 1100000000) {
-                    done();
-                } else {
-                    try {
-                        should.fail(null, null, "Delayed time was not between 900 and 1100 ms");
-                    } catch (err) {
-                        done(err);
-                    }
-                }
-            });
-            var startTime = process.hrtime();
-            n1.receive({payload:"foo",topic: "bar"});
-        });
+        await helper.load(functionNode, flow);
+        var n1 = helper.getNode("n1");
+        var n2 = helper.getNode("n2");
+
+        var startTime = process.hrtime();
+        n1.receive({payload:"foo",topic: "bar"});
+        let msg = await n2.next("input");
+        var endTime = process.hrtime(startTime);
+        var nanoTime = endTime[0] * 1000000000 + endTime[1];
+
+        msg.should.have.property('topic', 'bar');
+        msg.should.have.property('payload', 'foo');
+        if (900000000 > nanoTime || nanoTime > 1100000000) {
+            should.fail(null, null, "Delayed time was not between 900 and 1100 ms");
+        }
     });
 
-    it('should handle setInterval()', function(done) {
+    it('should handle setInterval()', async function() {
         var flow = [{id:"n1",type:"function",wires:[["n2"]],func:"setInterval(function(){node.send(msg);},100);"},
             {id:"n2", type:"helper"}];
-        helper.load(functionNode, flow, function() {
-            var n1 = helper.getNode("n1");
-            var n2 = helper.getNode("n2");
-            var count = 0;
-            n2.on("input", function(msg) {
-                msg.should.have.property('topic', 'bar');
-                msg.should.have.property('payload', 'foo');
-                count++;
-                if (count > 2) {
-                    done();
-                }
-            });
-            n1.receive({payload:"foo",topic: "bar"});
-        });
-    });
-
-    it('should handle clearInterval()', function(done) {
+        await helper.load(functionNode, flow);
+        var n1 = helper.getNode("n1");
+        var n2 = helper.getNode("n2");
+
+        n1.receive({payload:"foo",topic: "bar"});
+        let msg = await n2.next("input");
+        msg.should.have.property('topic', 'bar');
+        msg.should.have.property('payload', 'foo');
+        msg = await n2.next("input");
+        msg.should.have.property('topic', 'bar');
+        msg.should.have.property('payload', 'foo');
+        msg = await n2.next("input");
+        msg.should.have.property('topic', 'bar');
+        msg.should.have.property('payload', 'foo');
+    });
+
+    it('should handle clearInterval()', async function() {
         var flow = [{id:"n1",type:"function",wires:[["n2"]],func:"var id=setInterval(null,100);setTimeout(function(){clearInterval(id);node.send(msg);},1000);"},
             {id:"n2", type:"helper"}];
-        helper.load(functionNode, flow, function() {
-            var n1 = helper.getNode("n1");
-            var n2 = helper.getNode("n2");
-            n2.on("input", function(msg) {
-                msg.should.have.property('topic', 'bar');
-                msg.should.have.property('payload', 'foo');
-                done();
-            });
-            n1.receive({payload:"foo",topic: "bar"});
-        });
+        await helper.load(functionNode, flow);
+        var n1 = helper.getNode("n1");
+        var n2 = helper.getNode("n2");
+
+        n1.receive({payload:"foo",topic: "bar"});
+        let msg = await n2.next("input");
+        msg.should.have.property('topic', 'bar');
+        msg.should.have.property('payload', 'foo');
     });
 
-    describe('Logger', function () {
-        it('should log an Info Message', function (done) {
+    describe('Logger',function() {
+        it('should log an Info Message', async function() {
             var flow = [{id: "n1", type: "function", wires: [["n2"]], func: "node.log('test');"}];
-            helper.load(functionNode, flow, function () {
-                var n1 = helper.getNode("n1");
-                n1.receive({payload: "foo", topic: "bar"});
-                try {
-                    helper.log().called.should.be.true();
-                    var logEvents = helper.log().args.filter(function (evt) {
-                        return evt[0].type == "function";
-                    });
-                    logEvents.should.have.length(1);
-                    var msg = logEvents[0][0];
-                    msg.should.have.property('level', helper.log().INFO);
-                    msg.should.have.property('id', 'n1');
-                    msg.should.have.property('type', 'function');
-                    msg.should.have.property('msg', 'test');
-                    done();
-                } catch (err) {
-                    done(err);
-                }
-            });
+            await helper.load(functionNode, flow);
+            var n1 = helper.getNode("n1");
+
+            n1.receive({payload: "foo", topic: "bar"});
+            helper.log().called.should.be.true();
+            var logEvents = helper.log().args.filter(evt => evt[0].type == "function");
+            logEvents.should.have.length(1);
+            var msg = logEvents[0][0];
+            msg.should.have.property('level', helper.log().INFO);
+            msg.should.have.property('id', 'n1');
+            msg.should.have.property('type', 'function');
+            msg.should.have.property('msg', 'test');
         });
-        it('should log a Warning Message', function (done) {
+
+        it('should log a Warning Message', async function() {
             var flow = [{id: "n1", type: "function", wires: [["n2"]], func: "node.warn('test');"}];
-            helper.load(functionNode, flow, function () {
-                var n1 = helper.getNode("n1");
-                n1.receive({payload: "foo", topic: "bar"});
-                try {
-                    helper.log().called.should.be.true();
-                    var logEvents = helper.log().args.filter(function (evt) {
-                        return evt[0].type == "function";
-                    });
-                    logEvents.should.have.length(1);
-                    var msg = logEvents[0][0];
-                    msg.should.have.property('level', helper.log().WARN);
-                    msg.should.have.property('id', 'n1');
-                    msg.should.have.property('type', 'function');
-                    msg.should.have.property('msg', 'test');
-                    done();
-                } catch (err) {
-                    done(err);
-                }
-            });
+            await helper.load(functionNode, flow);
+            var n1 = helper.getNode("n1");
+
+            n1.receive({payload: "foo", topic: "bar"});
+            helper.log().called.should.be.true();
+            var logEvents = helper.log().args.filter(evt => evt[0].type == "function");
+            logEvents.should.have.length(1);
+            var msg = logEvents[0][0];
+            msg.should.have.property('level', helper.log().WARN);
+            msg.should.have.property('id', 'n1');
+            msg.should.have.property('type', 'function');
+            msg.should.have.property('msg', 'test');
         });
-        it('should log an Error Message', function (done) {
+
+        it('should log an Error Message', async function() {
             var flow = [{id: "n1", type: "function", wires: [["n2"]], func: "node.error('test');"}];
-            helper.load(functionNode, flow, function () {
-                var n1 = helper.getNode("n1");
-                n1.receive({payload: "foo", topic: "bar"});
-                try {
-                    helper.log().called.should.be.true();
-                    var logEvents = helper.log().args.filter(function (evt) {
-                        return evt[0].type == "function";
-                    });
-                    logEvents.should.have.length(1);
-                    var msg = logEvents[0][0];
-                    msg.should.have.property('level', helper.log().ERROR);
-                    msg.should.have.property('id', 'n1');
-                    msg.should.have.property('type', 'function');
-                    msg.should.have.property('msg', 'test');
-                    done();
-                } catch (err) {
-                    done(err);
-                }
-            });
+            await helper.load(functionNode, flow);
+            var n1 = helper.getNode("n1");
+
+            n1.receive({payload: "foo", topic: "bar"});
+            helper.log().called.should.be.true();
+            var logEvents = helper.log().args.filter(evt => evt[0].type == "function");
+            logEvents.should.have.length(1);
+            var msg = logEvents[0][0];
+            msg.should.have.property('level', helper.log().ERROR);
+            msg.should.have.property('id', 'n1');
+            msg.should.have.property('type', 'function');
+            msg.should.have.property('msg', 'test');
         });
     });
 
diff --git a/examples/lower-case_async_spec.js b/examples/lower-case_async_spec.js
index 39dc55e..7181aee 100644
--- a/examples/lower-case_async_spec.js
+++ b/examples/lower-case_async_spec.js
@@ -5,41 +5,34 @@ helper.init(require.resolve('node-red'));
 
 describe('lower-case Node', function () {
 
-  afterEach(function () {
-    helper.unload();
+  afterEach(async function () {
+    await helper.unload();
   });
 
-  it('should be loaded', function (done) {
-    var flow = [{ id: "n1", type: "lower-case", name: "lower-case" }];
-    helper.load(lowerNode, flow, function () {
-      var n1 = helper.getNode("n1");
-      n1.should.have.property('name', 'lower-case');
-      done();
-    });
+  it('should be loaded', async function () {
+    var flow = [{id: "n1", type: "lower-case", name: "lower-case"}];
+    await helper.load(lowerNode, flow);
+    var n1 = helper.getNode("n1");
+    n1.should.have.property('name', 'lower-case');
   });
 
-  it('should be loaded in exported flow', function (done) {
+  it('should be loaded in exported flow', async function () {
     var flow = [{"id":"3912a37a.c3818c","type":"lower-case","z":"e316ac4b.c85a2","name":"lower-case","x":240,"y":320,"wires":[[]]}];
-    helper.load(lowerNode, flow, function () {
-      var n1 = helper.getNode("3912a37a.c3818c");
-      n1.should.have.property('name', 'lower-case');
-      done();
-    });
+    await helper.load(lowerNode, flow);
+    var n1 = helper.getNode("3912a37a.c3818c");
+    n1.should.have.property('name', 'lower-case');
   });
 
-  it('should make payload lower case', function (done) {
+  it('should make payload lower case', async function () {
     var flow = [
       { id: "n1", type: "lower-case", name: "test name",wires:[["n2"]] },
       { id: "n2", type: "helper" }
     ];
-    helper.load(lowerNode, flow, function () {
-      var n2 = helper.getNode("n2");
-      var n1 = helper.getNode("n1");
-      n2.on("input", function (msg) {
-        msg.should.have.property('payload', 'uppercase');
-        done();
-      });
-      n1.receive({ payload: "UpperCase" });
-    });
+    await helper.load(lowerNode, flow);
+    var n2 = helper.getNode("n2");
+    var n1 = helper.getNode("n1");
+    n1.receive({ payload: "UpperCase" });
+    let msg = await n2.next("input");
+    msg.should.have.property('payload', 'uppercase');
   });
 });

From 6ec9e91229d463acb54ba41ea2a86e14aa69f39d Mon Sep 17 00:00:00 2001
From: Niels Ulrik Andersen <niels@myplace.dk>
Date: Sun, 18 Nov 2018 21:38:43 +0100
Subject: [PATCH 7/8] Don't use "async" so we don't require ES2017.

---
 index.js | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/index.js b/index.js
index 09306e3..fa73b33 100644
--- a/index.js
+++ b/index.js
@@ -118,7 +118,7 @@ class NodeTestHelper extends EventEmitter {
         }
     }
 
-    async load(testNode, testFlow, testCredentials, cb) {
+    load(testNode, testFlow, testCredentials, cb) {
         const log = this._log;
         const logSpy = this._logSpy = this._sandbox.spy(log, 'log');
         logSpy.FATAL = log.FATAL;
@@ -193,12 +193,14 @@ class NodeTestHelper extends EventEmitter {
             testNode(red);
         }
 
-        await redNodes.loadFlows();
-        redNodes.startFlows();
-        should.deepEqual(testFlow, redNodes.getFlows().flows);
-        if (typeof cb === 'function') {
-            cb();
-        }
+        return redNodes.loadFlows()
+            .then(() => {
+                redNodes.startFlows();
+                should.deepEqual(testFlow, redNodes.getFlows().flows);
+                if (typeof cb === 'function') {
+                    cb();
+                }
+            });
     }
 
     unload() {
@@ -236,7 +238,7 @@ class NodeTestHelper extends EventEmitter {
 
         const cloneMessage = this._RED.util.cloneMessage;
 
-        node.next = async function(event) {
+        node.next = function(event) {
             if (node.testhelper[event].args.length > 0) {
                 return node.testhelper[event].args.shift();
             }

From bb6305fc9550d6feb838bc2fcba17299a88932f8 Mon Sep 17 00:00:00 2001
From: Niels Ulrik Andersen <niels@myplace.dk>
Date: Mon, 19 Nov 2018 12:06:11 +0100
Subject: [PATCH 8/8] Document API

---
 README.md | 42 ++++++++++++++++++++++++++++++++++--------
 1 file changed, 34 insertions(+), 8 deletions(-)

diff --git a/README.md b/README.md
index 5f5e287..ad9f26a 100644
--- a/README.md
+++ b/README.md
@@ -157,6 +157,7 @@ it('should warn if the `somethingGood` prop is falsy', function (done) {
     /* ..etc.. */
   };
   helper.load(FooNode, flow, function () {
+    var n1 = helper.getNode("n1");
     n1.warn.should.be.calledWithExactly('badness');
     done();
   });
@@ -289,14 +290,14 @@ For additional test examples taken from the Node-RED core, see the `.js` files s
 
 > *Work in progress.*
 
-### load(testNode, testFlows, testCredentials, cb)
+### load(testNode, testFlows[, testCredentials][, cb])
 
-Loads a flow then starts the flow. This function has the following arguments:
+Return a promise to load a flow then start the flow. This function has the following arguments:
 
 * testNode: (object|array of objects) Module object of a node to be tested returned by require function. This node will be registered, and can be used in testFlows.
 * testFlow: (array of objects) Flow data to test a node. If you want to use flow data exported from Node-RED editor, export the flow to the clipboard and paste the content into your test scripts.
 * testCredentials: (object) Optional node credentials.
-* cb: (function) Function to call back when testFlows has been started.
+* cb: (function) Optional function to call back when testFlows has been started.
 
 ### unload()
 
@@ -306,9 +307,34 @@ Return promise to stop all flows, clean up test runtime.
 
 Returns a node instance by id in the testFlow. Any node that is defined in testFlows can be retrieved, including any helper node added to the flow.
 
+An extra method is added to the node:
+
+* next(event)  
+  Alternative to on(event, callback) for async/await style programming. Returns promise to find the next event in queue. If there is no events in queue, the promise itself will be queued.
+
+  If the event is input, a clone of the message will be returned.
+
+  Example:
+  
+  ````javascript
+  it('should make payload lower case', async function() {
+      var flow = [
+          {id:"n1",type:"lower-case",name:"test name",wires:[["n2"]]},
+          {id:"n2",type:"helper"}
+      ];
+      await helper.load(lowerNode, flow);
+      var n2 = helper.getNode("n2");
+      var n1 = helper.getNode("n1");
+
+      n1.receive({payload:"UpperCase"});
+      let msg = await n2.next("input");
+      msg.should.have.property('payload', 'uppercase');
+    });
+    ````
+
 ### clearFlows()
 
-Stop all flows.
+Return promise to stop all flows.
 
 ### request()
 
@@ -320,9 +346,9 @@ Example:
 helper.request().post('/inject/invalid').expect(404).end(done);
 ```
 
-### startServer(done)
+### startServer([done])
 
-Starts a Node-RED server for testing nodes that depend on http or web sockets endpoints like the debug node.
+Return promise to start a Node-RED server for testing nodes that depend on http or web sockets endpoints like the debug node.
 To start a Node-RED server before all test cases:
 
 ```javascript
@@ -331,9 +357,9 @@ before(function(done) {
 });
 ```
 
-### stopServer(done)
+### stopServer([done])
 
-Stop server.  Generally called after unload() complete.  For example, to unload a flow then stop a server after each test:
+Return promise to stop server.  Generally called after unload() complete.  For example, to unload a flow then stop a server after each test:
 
 ```javascript
 afterEach(function(done) {