Add inter-pod-affinity integration tests and remove corresponding e2e tests

test/integration/scheduler/BUILD

@@ -14,6 +14,7 @@ go_test(
     srcs = [
         "extender_test.go",
         "main_test.go",
+        "predicates_test.go",
         "priorities_test.go",
         "scheduler_test.go",
     ],
@@ -37,6 +38,7 @@ go_test(
         "//test/integration/framework:go_default_library",
         "//test/utils:go_default_library",
         "//vendor/k8s.io/api/core/v1:go_default_library",
+        "//vendor/k8s.io/apimachinery/pkg/api/errors:go_default_library",
         "//vendor/k8s.io/apimachinery/pkg/api/resource:go_default_library",
         "//vendor/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
         "//vendor/k8s.io/apimachinery/pkg/util/wait:go_default_library",

test/integration/scheduler/util.go

@@ -282,6 +282,17 @@ func runPausePod(cs clientset.Interface, conf *pausePodConfig) (*v1.Pod, error)
 	return pod, nil
 }
 
+// podDeleted returns true if a pod is not found in the given namespace.
+func podDeleted(c clientset.Interface, podNamespace, podName string) wait.ConditionFunc {
+	return func() (bool, error) {
+		_, err := c.Core().Pods(podNamespace).Get(podName, metav1.GetOptions{})
+		if errors.IsNotFound(err) {
+			return true, nil
+		}
+		return false, nil
+	}
+}
+
 // podScheduled returns true if a node is assigned to the given pod.
 func podScheduled(c clientset.Interface, podNamespace, podName string) wait.ConditionFunc {
 	return func() (bool, error) {