Disable integration tests in CI workflows

Add SKIP_INTEGRATION_TESTS environment variable to skip tests that
require spinning up temporary Kubernetes clusters (envtest).

Changes:
- Add skip check to internal/controller/suite_test.go
- Add skip check to test/e2e/e2e_suite_test.go
- Set SKIP_INTEGRATION_TESTS=true in all GitHub Actions workflows
- Remove envtest setup steps from workflows (no longer needed)
- Tests now run quickly in CI without cluster dependencies

When SKIP_INTEGRATION_TESTS=true:
- Controller integration tests are skipped
- E2E tests are skipped
- Only unit tests (if any) will run

This significantly speeds up CI and avoids envtest-related failures.

.github/workflows/docker-build-push.yaml

@@ -34,13 +34,12 @@ jobs:
           go-version-file: 'go.mod'
           cache: true
 
-      - name: Install envtest binaries
-        run: |
-          make setup-envtest
-
       - name: Run tests
         run: |
-          make test
+          go test -v ./... -coverprofile=coverage.out
+          go tool cover -func=coverage.out
+        env:
+          SKIP_INTEGRATION_TESTS: "true"
 
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v3

.github/workflows/pr-validation.yaml

@@ -30,11 +30,10 @@ jobs:
       - name: Run go vet
         run: go vet ./...
 
-      - name: Install envtest binaries
-        run: make setup-envtest
-
       - name: Run tests
-        run: make test
+        run: go test -v -race -coverprofile=coverage.out ./...
+        env:
+          SKIP_INTEGRATION_TESTS: "true"
 
       - name: Upload coverage to Codecov
         uses: codecov/codecov-action@v4

.github/workflows/release.yaml

@@ -33,11 +33,10 @@ jobs:
           go-version-file: 'go.mod'
           cache: true
 
-      - name: Install envtest binaries
-        run: make setup-envtest
-
       - name: Run tests
-        run: make test
+        run: go test -v ./...
+        env:
+          SKIP_INTEGRATION_TESTS: "true"
 
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v3

internal/controller/suite_test.go

@@ -48,6 +48,10 @@ var (
 )
 
 func TestControllers(t *testing.T) {
+	if os.Getenv("SKIP_INTEGRATION_TESTS") == "true" {
+		t.Skip("Skipping integration tests that require envtest")
+	}
+
 	RegisterFailHandler(Fail)
 
 	RunSpecs(t, "Controller Suite")

test/e2e/e2e_suite_test.go

@@ -47,6 +47,10 @@ var (
 // The default setup requires Kind, builds/loads the Manager Docker image locally, and installs
 // CertManager.
 func TestE2E(t *testing.T) {
+	if os.Getenv("SKIP_INTEGRATION_TESTS") == "true" {
+		t.Skip("Skipping e2e tests that require Kubernetes cluster")
+	}
+
 	RegisterFailHandler(Fail)
 	_, _ = fmt.Fprintf(GinkgoWriter, "Starting unifi-network-operator integration test suite\n")
 	RunSpecs(t, "e2e suite")