kubernetes/cmd/kubeadm/app/cmd/phases/reset/cleanupnode_test.go

func assertExists(t *testing.T, path string) { … }

func assertNotExists(t *testing.T, path string) { … }

// assertDirEmpty verifies a directory either does not exist, or is empty.
func assertDirEmpty(t *testing.T, path string) { … }

func TestConfigDirCleaner(t *testing.T) { … }