Add more test cases for volume binding in the scheduler

test/integration/scheduler/BUILD

@@ -11,7 +11,6 @@ go_test(
     size = "large",
     srcs = [
         "extender_test.go",
-        "local-pv-neg-affinity_test.go",
         "main_test.go",
         "predicates_test.go",
         "preemption_test.go",

test/integration/scheduler/util.go

@@ -362,6 +362,18 @@ func waitForPodToSchedule(cs clientset.Interface, pod *v1.Pod) error {
 	return waitForPodToScheduleWithTimeout(cs, pod, 30*time.Second)
 }
 
+// waitForPodUnscheduleWithTimeout waits for a pod to fail scheduling and returns
+// an error if it does not become unschedulable within the given timeout.
+func waitForPodUnschedulableWithTimeout(cs clientset.Interface, pod *v1.Pod, timeout time.Duration) error {
+	return wait.Poll(100*time.Millisecond, timeout, podUnschedulable(cs, pod.Namespace, pod.Name))
+}
+
+// waitForPodUnschedule waits for a pod to fail scheduling and returns
+// an error if it does not become unschedulable within the timeout duration (30 seconds).
+func waitForPodUnschedulable(cs clientset.Interface, pod *v1.Pod) error {
+	return waitForPodUnschedulableWithTimeout(cs, pod, 30*time.Second)
+}
+
 // deletePod deletes the given pod in the given namespace.
 func deletePod(cs clientset.Interface, podName string, nsName string) error {
 	return cs.CoreV1().Pods(nsName).Delete(podName, metav1.NewDeleteOptions(0))