github.com/kubeflow/training-operator@v1.7.0/pkg/controller.v1/control/pod_control_test.go (about)

     1  // Copyright 2019 The Kubeflow Authors
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package control
    16  
    17  import (
    18  	"encoding/json"
    19  	"net/http/httptest"
    20  	"testing"
    21  
    22  	"github.com/stretchr/testify/assert"
    23  	corev1 "k8s.io/api/core/v1"
    24  	apiequality "k8s.io/apimachinery/pkg/api/equality"
    25  	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
    26  	"k8s.io/apimachinery/pkg/runtime"
    27  	clientset "k8s.io/client-go/kubernetes"
    28  	clientscheme "k8s.io/client-go/kubernetes/scheme"
    29  	restclient "k8s.io/client-go/rest"
    30  	"k8s.io/client-go/tools/record"
    31  	utiltesting "k8s.io/client-go/util/testing"
    32  
    33  	testutilv1 "github.com/kubeflow/training-operator/test_job/test_util/v1"
    34  )
    35  
    36  func TestCreatePods(t *testing.T) {
    37  	ns := metav1.NamespaceDefault
    38  	body := runtime.EncodeOrDie(
    39  		clientscheme.Codecs.LegacyCodec(corev1.SchemeGroupVersion),
    40  		&corev1.Pod{ObjectMeta: metav1.ObjectMeta{Name: "empty_pod"}})
    41  	fakeHandler := utiltesting.FakeHandler{
    42  		StatusCode:   200,
    43  		ResponseBody: body,
    44  	}
    45  	testServer := httptest.NewServer(&fakeHandler)
    46  	defer testServer.Close()
    47  	k8sClient := clientset.NewForConfigOrDie(&restclient.Config{Host: testServer.URL, ContentConfig: restclient.ContentConfig{GroupVersion: &corev1.SchemeGroupVersion}})
    48  
    49  	podControl := RealPodControl{
    50  		KubeClient: k8sClient,
    51  		Recorder:   &record.FakeRecorder{},
    52  	}
    53  
    54  	testJob := testutilv1.NewTestJob(1)
    55  
    56  	testName := "pod-name"
    57  	podTemplate := testutilv1.NewTestReplicaSpecTemplate()
    58  	podTemplate.Name = testName
    59  	podTemplate.Labels = testutilv1.GenLabels(testJob.Name)
    60  	podTemplate.SetOwnerReferences([]metav1.OwnerReference{})
    61  
    62  	// Make sure createReplica sends a POST to the apiserver with a pod from the controllers pod template
    63  	err := podControl.CreatePods(ns, &podTemplate, testJob)
    64  	assert.NoError(t, err, "unexpected error: %v", err)
    65  
    66  	expectedPod := corev1.Pod{
    67  		ObjectMeta: metav1.ObjectMeta{
    68  			Labels: testutilv1.GenLabels(testJob.Name),
    69  			Name:   testName,
    70  		},
    71  		Spec: podTemplate.Spec,
    72  	}
    73  	fakeHandler.ValidateRequest(t,
    74  		"/api/v1/namespaces/default/pods", "POST", nil)
    75  	var actualPod = &corev1.Pod{}
    76  	err = json.Unmarshal([]byte(fakeHandler.RequestBody), actualPod)
    77  	assert.NoError(t, err, "unexpected error: %v", err)
    78  	assert.True(t, apiequality.Semantic.DeepDerivative(&expectedPod, actualPod),
    79  		"Body: %s", fakeHandler.RequestBody)
    80  }