enable unit tests as part of PR checks pipeline

Signed-off-by: odubajDT <ondrej.dubaj@dynatrace.com>

.github/workflows/pr-checks.yml

@@ -72,6 +72,24 @@ jobs:
       - name: Upload coverage to Codecov
         uses: codecov/codecov-action@v3
 
+  unit-test:
+    name: Unit Tests
+    needs: prepare_ci_run
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v3
+
+      - name: Install Go
+        uses: actions/setup-go@v3
+        with:
+          go-version: ${{ env.DEFAULT_GO_VERSION }}
+          cache: true
+          cache-dependency-path: 'go.sum'
+
+      - name: Unit Test
+        run: make unit-test
+
   docker-local:
     permissions:
       security-events: write  # for github/codeql-action/upload-sarif to upload SARIF results

Makefile

@@ -69,6 +69,10 @@ vet: ## Run go vet against code.
 test: manifests generate fmt vet envtest ## Run tests.
 	KUBEBUILDER_ASSETS="$(shell $(ENVTEST) use $(ENVTEST_K8S_VERSION) -p path)" go test ./... -coverprofile cover.out
 
+.PHONY: unit-test
+unit-test: manifests fmt vet generate envtest ## Run tests.
+	go test ./apis/... -v
+
 ## Requires the operator to be deployed
 .PHONY: e2e-test
 e2e-test: manifests generate fmt vet