diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
new file mode 100644
index 0000000..761c02e
--- /dev/null
+++ b/.github/workflows/test.yaml
@@ -0,0 +1,25 @@
+
+name: Test anoma-apps
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+  workflow_dispatch:
+
+jobs:
+  test:
+    name: Run test suite
+    runs-on: ubuntu-latest
+    steps:
+      - name: checkout code
+        uses: actions/checkout@v3
+
+      - name: Download latest nightly Juvix binary
+        uses: jaxxstorm/action-install-gh-release@v1.10.0
+        with:
+          repo: anoma/juvix-nightly-builds
+          cache: enable
+
+      - name: Run tests
+        run: juvix eval tests/Main.juvix
diff --git a/SimpleCounter/Package.juvix b/SimpleCounter/Package.juvix
index c84d8b1..072be18 100644
--- a/SimpleCounter/Package.juvix
+++ b/SimpleCounter/Package.juvix
@@ -6,8 +6,5 @@ package : Package :=
   defaultPackage
     {name := "simplecounter";
      dependencies := [ defaultStdlib
-                     ; github
-                       "anoma"
-                       "juvix-anoma-stdlib"
-                       "b91e93a7582a7ac87e7756e39c28affc05926dca"
+                     ; github "anoma" "juvix-anoma-stdlib" "v0.1.0"
                      ]};
diff --git a/SimpleCounter/juvix.lock.yaml b/SimpleCounter/juvix.lock.yaml
index 1418de8..6837b37 100644
--- a/SimpleCounter/juvix.lock.yaml
+++ b/SimpleCounter/juvix.lock.yaml
@@ -1,15 +1,18 @@
-# This file was autogenerated by Juvix version 0.6.2.
+# This file was autogenerated by Juvix version 0.6.3.
 # Do not edit this file manually.
 
 version: 2
-checksum: 3de3e44074cdb117abc190a223acabe27623e099f7d782ab3722b4032ab0a8dd
+checksum: d4d7643f2d4d193af44a11088b92b852ae2fdc14d3be8b071aa8f1158f83c340
 dependencies:
 - path: .juvix-build/stdlib/
   dependencies: []
 - git:
     name: anoma_juvix-anoma-stdlib
-    ref: b91e93a7582a7ac87e7756e39c28affc05926dca
+    ref: 835ce837e75c35319ab7e362953f23f1bc5fd3e5
     url: https://github.com/anoma/juvix-anoma-stdlib
   dependencies:
-  - path: .juvix-build/stdlib/
+  - git:
+      name: anoma_juvix-stdlib
+      ref: 89a5960fb8a29291e9271986b98ca7b1edf4031b
+      url: https://github.com/anoma/juvix-stdlib
     dependencies: []
diff --git a/SimpleCounter/tests/Package.juvix b/SimpleCounter/tests/Package.juvix
new file mode 100644
index 0000000..21058c6
--- /dev/null
+++ b/SimpleCounter/tests/Package.juvix
@@ -0,0 +1,14 @@
+module Package;
+
+import PackageDescription.V2 open;
+
+package : Package :=
+  defaultPackage@?{
+    name := "simplecounter-tests";
+    dependencies :=
+      [ defaultStdlib
+      ; github "anoma" "juvix-anoma-test" "v0.1.1"
+      ; github "anoma" "juvix-test" "v0.11.0"
+      ; path "../"
+      ]
+  };
diff --git a/SimpleCounter/tests/SimpleCounterTests.juvix b/SimpleCounter/tests/SimpleCounterTests.juvix
new file mode 100644
index 0000000..11dff9e
--- /dev/null
+++ b/SimpleCounter/tests/SimpleCounterTests.juvix
@@ -0,0 +1,23 @@
+module SimpleCounterTests;
+
+import Stdlib.Prelude open;
+import Test.Anoma open;
+import Test.JuvixUnit open;
+import SimpleCounter open;
+
+tests : List Test :=
+  [ testCase
+    "init counter with zeroedCounter is valid"
+    (anomaAssertPass (verify (init zeroedCounter)))
+  ; testCase
+    "init counter with incrementedCounter is invalid"
+    (anomaAssertFail (verify (init incrementedCounter)))
+  ; testCase
+    "update with zeroedCounter and incrementedCounter is valid"
+    (anomaAssertPass
+      (verify (update zeroedCounter incrementedCounter)))
+  ; testCase
+    "update with zeroedCounter and zeroedCounter is invalid"
+    (anomaAssertFail
+      (verify (update zeroedCounter zeroedCounter)))
+  ];
diff --git a/SimpleCounter/tests/juvix.lock.yaml b/SimpleCounter/tests/juvix.lock.yaml
new file mode 100644
index 0000000..561c3ca
--- /dev/null
+++ b/SimpleCounter/tests/juvix.lock.yaml
@@ -0,0 +1,72 @@
+# This file was autogenerated by Juvix version 0.6.3.
+# Do not edit this file manually.
+
+version: 2
+checksum: bd05cf1a8cadb5c2486c0967a69d64e69e164fab40edb78d5d85e01875a9a8bd
+dependencies:
+- path: .juvix-build/stdlib/
+  dependencies: []
+- git:
+    name: anoma_juvix-anoma-test
+    ref: f6a44eb714604bbaf923ebda31cdf4e7862d0186
+    url: https://github.com/anoma/juvix-anoma-test
+  dependencies:
+  - git:
+      name: anoma_juvix-anoma-stdlib
+      ref: 835ce837e75c35319ab7e362953f23f1bc5fd3e5
+      url: https://github.com/anoma/juvix-anoma-stdlib
+    dependencies:
+    - git:
+        name: anoma_juvix-stdlib
+        ref: 89a5960fb8a29291e9271986b98ca7b1edf4031b
+        url: https://github.com/anoma/juvix-stdlib
+      dependencies: []
+  - git:
+      name: anoma_juvix-stdlib
+      ref: 89a5960fb8a29291e9271986b98ca7b1edf4031b
+      url: https://github.com/anoma/juvix-stdlib
+    dependencies: []
+  - git:
+      name: anoma_juvix-containers
+      ref: c4c7af9bdf36aa9d2dbdc7e0372dd9278f60ff26
+      url: https://github.com/anoma/juvix-containers
+    dependencies:
+    - git:
+        name: anoma_juvix-stdlib
+        ref: 89a5960fb8a29291e9271986b98ca7b1edf4031b
+        url: https://github.com/anoma/juvix-stdlib
+      dependencies: []
+  - git:
+      name: anoma_juvix-test
+      ref: 4254b60351f283f31868498d4e238af8259243f8
+      url: https://github.com/anoma/juvix-test
+    dependencies:
+    - git:
+        name: anoma_juvix-stdlib
+        ref: 89a5960fb8a29291e9271986b98ca7b1edf4031b
+        url: https://github.com/anoma/juvix-stdlib
+      dependencies: []
+- git:
+    name: anoma_juvix-test
+    ref: 4254b60351f283f31868498d4e238af8259243f8
+    url: https://github.com/anoma/juvix-test
+  dependencies:
+  - git:
+      name: anoma_juvix-stdlib
+      ref: 89a5960fb8a29291e9271986b98ca7b1edf4031b
+      url: https://github.com/anoma/juvix-stdlib
+    dependencies: []
+- path: ../
+  dependencies:
+  - path: .juvix-build/stdlib/
+    dependencies: []
+  - git:
+      name: anoma_juvix-anoma-stdlib
+      ref: 835ce837e75c35319ab7e362953f23f1bc5fd3e5
+      url: https://github.com/anoma/juvix-anoma-stdlib
+    dependencies:
+    - git:
+        name: anoma_juvix-stdlib
+        ref: 89a5960fb8a29291e9271986b98ca7b1edf4031b
+        url: https://github.com/anoma/juvix-stdlib
+      dependencies: []
diff --git a/tests/Main.juvix b/tests/Main.juvix
new file mode 100644
index 0000000..c48ae74
--- /dev/null
+++ b/tests/Main.juvix
@@ -0,0 +1,9 @@
+module Main;
+
+import Stdlib.Prelude open;
+import SimpleCounterTests;
+import Test.JuvixUnit open;
+
+main : IO :=
+  runTestSuite
+    (testSuite "SimpleCounter tests" SimpleCounterTests.tests);
diff --git a/tests/Package.juvix b/tests/Package.juvix
new file mode 100644
index 0000000..035b9aa
--- /dev/null
+++ b/tests/Package.juvix
@@ -0,0 +1,12 @@
+module Package;
+
+import PackageDescription.V2 open;
+
+package : Package :=
+  defaultPackage {
+    name := "anoma-apps-tests";
+    dependencies := [
+      defaultStdlib
+      ; github "anoma" "juvix-test" "v0.11.0"
+      ; path "../SimpleCounter/tests"]
+  };
diff --git a/tests/juvix.lock.yaml b/tests/juvix.lock.yaml
new file mode 100644
index 0000000..7ef5ca7
--- /dev/null
+++ b/tests/juvix.lock.yaml
@@ -0,0 +1,86 @@
+# This file was autogenerated by Juvix version 0.6.3.
+# Do not edit this file manually.
+
+version: 2
+checksum: d87fd331b8995c3c7132891e739e8ee59e768b9ba40d84de6c9fdf43e43fd33d
+dependencies:
+- path: .juvix-build/stdlib/
+  dependencies: []
+- git:
+    name: anoma_juvix-test
+    ref: 4254b60351f283f31868498d4e238af8259243f8
+    url: https://github.com/anoma/juvix-test
+  dependencies:
+  - git:
+      name: anoma_juvix-stdlib
+      ref: 89a5960fb8a29291e9271986b98ca7b1edf4031b
+      url: https://github.com/anoma/juvix-stdlib
+    dependencies: []
+- path: ../SimpleCounter/tests
+  dependencies:
+  - path: .juvix-build/stdlib/
+    dependencies: []
+  - git:
+      name: anoma_juvix-anoma-test
+      ref: f6a44eb714604bbaf923ebda31cdf4e7862d0186
+      url: https://github.com/anoma/juvix-anoma-test
+    dependencies:
+    - git:
+        name: anoma_juvix-anoma-stdlib
+        ref: 835ce837e75c35319ab7e362953f23f1bc5fd3e5
+        url: https://github.com/anoma/juvix-anoma-stdlib
+      dependencies:
+      - git:
+          name: anoma_juvix-stdlib
+          ref: 89a5960fb8a29291e9271986b98ca7b1edf4031b
+          url: https://github.com/anoma/juvix-stdlib
+        dependencies: []
+    - git:
+        name: anoma_juvix-stdlib
+        ref: 89a5960fb8a29291e9271986b98ca7b1edf4031b
+        url: https://github.com/anoma/juvix-stdlib
+      dependencies: []
+    - git:
+        name: anoma_juvix-containers
+        ref: c4c7af9bdf36aa9d2dbdc7e0372dd9278f60ff26
+        url: https://github.com/anoma/juvix-containers
+      dependencies:
+      - git:
+          name: anoma_juvix-stdlib
+          ref: 89a5960fb8a29291e9271986b98ca7b1edf4031b
+          url: https://github.com/anoma/juvix-stdlib
+        dependencies: []
+    - git:
+        name: anoma_juvix-test
+        ref: 4254b60351f283f31868498d4e238af8259243f8
+        url: https://github.com/anoma/juvix-test
+      dependencies:
+      - git:
+          name: anoma_juvix-stdlib
+          ref: 89a5960fb8a29291e9271986b98ca7b1edf4031b
+          url: https://github.com/anoma/juvix-stdlib
+        dependencies: []
+  - git:
+      name: anoma_juvix-test
+      ref: 4254b60351f283f31868498d4e238af8259243f8
+      url: https://github.com/anoma/juvix-test
+    dependencies:
+    - git:
+        name: anoma_juvix-stdlib
+        ref: 89a5960fb8a29291e9271986b98ca7b1edf4031b
+        url: https://github.com/anoma/juvix-stdlib
+      dependencies: []
+  - path: ../
+    dependencies:
+    - path: .juvix-build/stdlib/
+      dependencies: []
+    - git:
+        name: anoma_juvix-anoma-stdlib
+        ref: 835ce837e75c35319ab7e362953f23f1bc5fd3e5
+        url: https://github.com/anoma/juvix-anoma-stdlib
+      dependencies:
+      - git:
+          name: anoma_juvix-stdlib
+          ref: 89a5960fb8a29291e9271986b98ca7b1edf4031b
+          url: https://github.com/anoma/juvix-stdlib
+        dependencies: []