add cache tag for unit tests

Makefile

@@ -132,7 +132,7 @@ velero-crds:
 
 .PHONY: test
 test: envtest ## run tests
-	@KUBEBUILDER_ASSETS="$(shell $(ENVTEST) use $(ENVTEST_K8S_VERSION) --bin-dir $(GOPATH)/bin -p path)" go test $$(go list ./... | grep -v /e2e) -v
+	@KUBEBUILDER_ASSETS="$(shell $(ENVTEST) use $(ENVTEST_K8S_VERSION) --bin-dir $(GOPATH)/bin -p path)" go test $$(go list ./... | grep -v /e2e) -v -tags="cache"
 
 .PHONY: lint
 lint: $(PRE) ## run linters

pkg/cache/cache_test.go

@@ -1,3 +1,5 @@
+//go:build cache
+
 package cache
 
 import (

pkg/cache/resource_cache_entry_test.go

@@ -1,3 +1,5 @@
+//go:build cache
+
 package cache
 
 import (

pkg/cache/suite_test.go

@@ -41,7 +41,7 @@ var kClient client.Client
 var cfg *rest.Config
 var err error
 
-func TestControllers(t *testing.T) {
+func TestE2ECache(t *testing.T) {
 	RegisterFailHandler(Fail)
 	RunSpecs(t, "Resource Cache Suite")
 }