feat: Introduce testing with Unity

.github/workflows/platformio-test.yaml

@@ -0,0 +1,46 @@
+name: PlatformIO Test
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+  workflow_dispatch:
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout repository
+      uses: actions/[email protected]
+
+    - name: Copy secrets template
+      run: |
+        cp secrets.ini.template secrets.ini
+
+    - name: Set up Python
+      uses: actions/[email protected]
+      with:
+        python-version-file: '.python-version'
+
+    - name: Cache PlatformIO
+      uses: actions/[email protected]
+      with:
+        path: |
+          ~/.cache/pip
+          ~/.platformio/.cache
+        key: ${{ runner.os }}-pio-${{ hashFiles('**/requirements.txt') }}
+
+    - name: Install PlatformIO
+      shell: bash
+      run: |
+        #!/bin/bash
+        pip install --upgrade platformio
+
+    - name: PlatformIO Test
+      shell: bash
+      run: |
+        #!/bin/bash
+        pio test -e unit_test

platformio.ini

@@ -40,3 +40,6 @@ build_type = debug
 build_flags =
     -D DEBUG
     ${common.build_flags}
+
+[env:unit_test]
+platform = native

test/dummy-test.cpp

@@ -0,0 +1,29 @@
+#include <unity.h>
+
+void setUp(void)
+{
+  // set stuff up here
+}
+
+void tearDown(void)
+{
+  // clean stuff up here
+}
+
+void should_always_succeed()
+{
+  TEST_ASSERT_TRUE(true);
+}
+
+void should_always_fail()
+{
+  TEST_ASSERT_TRUE(false);
+}
+
+int main(int argc, char **argv)
+{
+  UNITY_BEGIN();
+  RUN_TEST(should_always_succeed);
+  // RUN_TEST(should_always_fail);
+  UNITY_END();
+}