integration: migrate preemption tests

test/integration/scheduler/preemption/main_test.go

@@ -0,0 +1,27 @@
+/*
+Copyright 2022 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package preemption
+
+import (
+	"testing"
+
+	"k8s.io/kubernetes/test/integration/framework"
+)
+
+func TestMain(m *testing.M) {
+	framework.EtcdMain(m.Run)
+}

test/integration/scheduler/preemption/preemption_test.go

@@ -16,7 +16,7 @@ limitations under the License.
 
 // This file tests preemption functionality of the scheduler.
 
-package scheduler
+package preemption
 
 import (
 	"context"
@@ -52,6 +52,26 @@ import (
 	"k8s.io/utils/pointer"
 )
 
+// imported from testutils
+var (
+	initPausePod                    = testutils.InitPausePod
+	createNode                      = testutils.CreateNode
+	createPausePod                  = testutils.CreatePausePod
+	runPausePod                     = testutils.RunPausePod
+	deletePod                       = testutils.DeletePod
+	initTest                        = testutils.InitTestSchedulerWithNS
+	initTestDisablePreemption       = testutils.InitTestDisablePreemption
+	initDisruptionController        = testutils.InitDisruptionController
+	waitCachedPodsStable            = testutils.WaitCachedPodsStable
+	podIsGettingEvicted             = testutils.PodIsGettingEvicted
+	podUnschedulable                = testutils.PodUnschedulable
+	waitForPDBsStable               = testutils.WaitForPDBsStable
+	waitForPodToScheduleWithTimeout = testutils.WaitForPodToScheduleWithTimeout
+	waitForPodUnschedulable         = testutils.WaitForPodUnschedulable
+)
+
+const filterPluginName = "filter-plugin"
+
 var lowPriority, mediumPriority, highPriority = int32(100), int32(200), int32(300)
 
 func waitForNominatedNodeNameWithTimeout(cs clientset.Interface, pod *v1.Pod, timeout time.Duration) error {