Remove newScheduler to simplify instantiation

Signed-off-by: kerthcet <kerthcet@gmail.com>

pkg/scheduler/extender_test.go

@@ -295,18 +295,16 @@ func TestSchedulerWithExtenders(t *testing.T) {
 				t.Fatal(err)
 			}
 
-			scheduler := newScheduler(
-				cache,
-				extenders,
-				nil,
-				nil,
-				nil,
-				nil,
-				nil,
-				emptySnapshot,
-				schedulerapi.DefaultPercentageOfNodesToScore)
+			sched := &Scheduler{
+				Cache:                    cache,
+				nodeInfoSnapshot:         emptySnapshot,
+				percentageOfNodesToScore: schedulerapi.DefaultPercentageOfNodesToScore,
+				Extenders:                extenders,
+			}
+			sched.applyDefaultHandlers()
+
 			podIgnored := &v1.Pod{}
-			result, err := scheduler.SchedulePod(ctx, fwk, framework.NewCycleState(), podIgnored)
+			result, err := sched.SchedulePod(ctx, fwk, framework.NewCycleState(), podIgnored)
 			if test.expectsErr {
 				if err == nil {
 					t.Errorf("Unexpected non-error, result %+v", result)