Add validation of args for create.

pkg/kubectl/cmd/create_test.go

@@ -22,8 +22,19 @@ import (
 	"testing"
 
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/client"
+	"github.com/GoogleCloudPlatform/kubernetes/pkg/kubectl/cmd"
 )
 
+func TestExtraArgsFail(t *testing.T) {
+	buf := bytes.NewBuffer([]byte{})
+
+	f, _, _ := NewAPIFactory()
+	c := f.NewCmdCreate(buf)
+	if cmd.ValidateArgs(c, []string{"rc"}) == nil {
+		t.Errorf("unexpected non-error")
+	}
+}
+
 func TestCreateObject(t *testing.T) {
 	_, _, rc := testData()
 	rc.Items[0].Name = "redis-master-controller"