Add basic unit test framework (#390)

Co-authored-by: Marco Franssen <[email protected]>

.github/workflows/helm-chart-ci.yaml

@@ -12,6 +12,7 @@ on:
       - '.github/tests/**/*.sh'
       - '.github/tests/**/*.json'
       - 'examples/**/*.yaml'
+      - 'tests/**/*'
       - 'helm-docs.sh'
 
 concurrency:
@@ -69,6 +70,23 @@ jobs:
             exit 1
           fi
 
+      - name: Setup Go
+        uses: actions/[email protected]
+        with:
+          go-version-file: tests/go.mod
+          cache-dependency-path: tests/go.sum
+          check-latest: true
+
+      - name: Install do dependencies
+        run: |
+          go mod download
+          go install github.com/onsi/ginkgo/v2/ginkgo@latest
+        working-directory: ./tests/unit
+
+      - name: Run Unit Tests
+        run: ginkgo
+        working-directory: ./tests/unit
+
   lint-chart:
     runs-on: ubuntu-22.04