Added an integration test

.github/workflows/ci.yml

@@ -176,6 +176,17 @@ jobs:
           exit 1
         fi
         pandoc-plot clean tests/issue30.md
+
+        # The idea here is to install some random package (npstreams) to
+        # check whether the plots will be rendered in the appropriate
+        # environment
+        python -m venv ./issue46
+        ./issue46/bin/python -m pip install npstreams matplotlib
+        pandoc --filter pandoc-plot -i tests/issue46.md -t native
+        if [ $(ls "plots" | wc -l) != 2 ]; then
+          exit 1
+        fi
+        pandoc-plot clean tests/issue46.md
     
     - name: Build documentation
       run: source tools/mkmanual.sh

cabal.project

@@ -1,2 +1 @@
-packages: pandoc-plot.cabal
-allow-newer: all
+packages: pandoc-plot.cabal

pandoc-plot.cabal

@@ -148,7 +148,6 @@ test-suite tests
                    , containers
                    , directory
                    , filepath
-                   , hspec
                    , hspec-expectations
                    , pandoc-types         >= 1.20 && <= 2
                    , pandoc-plot

tests/issue46.md

@@ -0,0 +1,9 @@
+---
+plot-configuration: tests/fixtures/.verbose-config.yml
+---
+
+```{.matplotlib executable="./issue46/bin/python"}
+import sys
+print(f"sys.executable={sys.executable}", file=sys.stderr)
+import npstreams
+```