func createTestRunDiffFile(contents []byte) (string, error) { … } func fakeFetchInitConfig(client clientset.Interface, printer output.Printer, logPrefix string, newControlPlane, skipComponentConfigs bool) (*kubeadmapi.InitConfiguration, error) { … } func TestRunDiff(t *testing.T) { … } func TestValidateManifests(t *testing.T) { … }