feature(scheduler): won't run Filter if PreFilter returned a Skip status

pkg/scheduler/framework/plugins/nodeaffinity/node_affinity_test.go

@@ -44,10 +44,6 @@ func TestNodeAffinity(t *testing.T) {
 		args                config.NodeAffinityArgs
 		disablePreFilter    bool
 	}{
-		{
-			name: "no selector",
-			pod:  &v1.Pod{},
-		},
 		{
 			name: "missing labels",
 			pod: st.MakePod().NodeSelector(map[string]string{
@@ -285,6 +281,7 @@ func TestNodeAffinity(t *testing.T) {
 			labels: map[string]string{
 				"foo": "bar",
 			},
+			wantPreFilterStatus: framework.NewStatus(framework.Skip),
 		},
 		{
 			name: "Pod with Affinity but nil NodeSelector will schedule onto a node",
@@ -300,6 +297,7 @@ func TestNodeAffinity(t *testing.T) {
 			labels: map[string]string{
 				"foo": "bar",
 			},
+			wantPreFilterStatus: framework.NewStatus(framework.Skip),
 		},
 		{
 			name: "Pod with multiple matchExpressions ANDed that matches the existing node",