fixed kubeconfig test

cmd/minikube/cmd/start.go

@@ -91,7 +91,7 @@ func runStart(cmd *cobra.Command, args []string) {
 	}
 }
 
-// setupKubeconfig reads config from disk, adds the minikube settings and writes it back.
+// setupKubeconfig reads config from disk, adds the minikube settings, and writes it back.
 // activeContext is true when minikube is the CurrentContext
 // If no CurrentContext is set, the given name will be used.
 func setupKubeconfig(name, server, certAuth, cliCert, cliKey string) (activeContext bool, err error) {

pkg/minikube/kubeconfig/config_test.go

@@ -52,6 +52,7 @@ func TestNewConfig(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
+	defer os.RemoveAll(dir)
 
 	// setup minikube config
 	expected := api.NewConfig()