diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 0000000..cc9c505
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,31 @@
+name: Test
+on: [push, pull_request]
+jobs:
+  build:
+    name: "Test on Racket '${{ matrix.racket-version }}' (${{ matrix.racket-variant }})"
+    runs-on: ubuntu-latest
+    continue-on-error: ${{ matrix.experimental || false }}
+    strategy:
+      fail-fast: false
+      matrix:
+        racket-version: ["stable", "current"]
+        racket-variant: ["CS"]
+        include:
+          - racket-version: current
+            experimental: true
+    steps:
+      - uses: actions/checkout@v3.1.0
+      - uses: Bogdanp/setup-racket@v1.9.1
+        with:
+          architecture: x64
+          distribution: full
+          variant: ${{ matrix.racket-variant }}
+          version: ${{ matrix.racket-version }}
+      - name: Installing telebot
+        run: raco pkg install --no-docs --auto --link telebot
+      - name: Testing telebot
+        run: raco test -x -p telebot
+      - name: Installing eval-bot
+        run: raco pkg install --no-docs --auto --link eval-bot
+      - name: Testing eval-bot
+        run: raco test -x -p eval-bot
diff --git a/eval-bot/eval.rkt b/eval-bot/eval.rkt
index a3c29fb..af39117 100644
--- a/eval-bot/eval.rkt
+++ b/eval-bot/eval.rkt
@@ -87,3 +87,11 @@
     (kill-evaluator evaluator)))
 
 ;; TODO: call-with-evaluator?
+
+(module+ test
+  (require rackunit)
+
+  (check-equal? (eval-code "(+ 1 2)")
+                '(("3" "" "")))
+  (check-equal? (eval-code "(define a 42) (display (/ a 2))")
+                '(("" "" "") ("" "21" ""))))