k3s/pkg/kubectl/cmd/get/get_test.go

1290 lines
42 KiB
Go

/*
Copyright 2014 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 get
import (
"bytes"
encjson "encoding/json"
"io"
"io/ioutil"
"net/http"
"path/filepath"
"reflect"
"strings"
"testing"
apiapps "k8s.io/api/apps/v1"
apiautoscaling "k8s.io/api/autoscaling/v1"
apibatchv1 "k8s.io/api/batch/v1"
apibatchv1beta1 "k8s.io/api/batch/v1beta1"
api "k8s.io/api/core/v1"
apiextensionsv1beta1 "k8s.io/api/extensions/v1beta1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/apimachinery/pkg/runtime/serializer/json"
"k8s.io/apimachinery/pkg/runtime/serializer/streaming"
"k8s.io/apimachinery/pkg/util/diff"
"k8s.io/apimachinery/pkg/watch"
restclient "k8s.io/client-go/rest"
"k8s.io/client-go/rest/fake"
restclientwatch "k8s.io/client-go/rest/watch"
"k8s.io/kube-openapi/pkg/util/proto"
apitesting "k8s.io/kubernetes/pkg/api/testing"
cmdtesting "k8s.io/kubernetes/pkg/kubectl/cmd/testing"
cmdutil "k8s.io/kubernetes/pkg/kubectl/cmd/util"
"k8s.io/kubernetes/pkg/kubectl/cmd/util/openapi"
openapitesting "k8s.io/kubernetes/pkg/kubectl/cmd/util/openapi/testing"
"k8s.io/kubernetes/pkg/kubectl/genericclioptions"
"k8s.io/kubernetes/pkg/kubectl/genericclioptions/resource"
"k8s.io/kubernetes/pkg/kubectl/scheme"
)
var openapiSchemaPath = filepath.Join("..", "..", "..", "..", "api", "openapi-spec", "swagger.json")
var unstructuredSerializer = resource.UnstructuredPlusDefaultContentConfig().NegotiatedSerializer
func defaultHeader() http.Header {
header := http.Header{}
header.Set("Content-Type", runtime.ContentTypeJSON)
return header
}
func defaultClientConfig() *restclient.Config {
return &restclient.Config{
APIPath: "/api",
ContentConfig: restclient.ContentConfig{
NegotiatedSerializer: scheme.Codecs,
ContentType: runtime.ContentTypeJSON,
GroupVersion: &schema.GroupVersion{Group: "", Version: "v1"},
},
}
}
func objBody(codec runtime.Codec, obj runtime.Object) io.ReadCloser {
return ioutil.NopCloser(bytes.NewReader([]byte(runtime.EncodeOrDie(codec, obj))))
}
func stringBody(body string) io.ReadCloser {
return ioutil.NopCloser(bytes.NewReader([]byte(body)))
}
func initTestErrorHandler(t *testing.T) {
cmdutil.BehaviorOnFatal(func(str string, code int) {
t.Errorf("Error running command (exit code %d): %s", code, str)
})
}
func testData() (*api.PodList, *api.ServiceList, *api.ReplicationControllerList) {
pods := &api.PodList{
ListMeta: metav1.ListMeta{
ResourceVersion: "15",
},
Items: []api.Pod{
{
ObjectMeta: metav1.ObjectMeta{Name: "foo", Namespace: "test", ResourceVersion: "10"},
Spec: apitesting.V1DeepEqualSafePodSpec(),
},
{
ObjectMeta: metav1.ObjectMeta{Name: "bar", Namespace: "test", ResourceVersion: "11"},
Spec: apitesting.V1DeepEqualSafePodSpec(),
},
},
}
svc := &api.ServiceList{
ListMeta: metav1.ListMeta{
ResourceVersion: "16",
},
Items: []api.Service{
{
ObjectMeta: metav1.ObjectMeta{Name: "baz", Namespace: "test", ResourceVersion: "12"},
Spec: api.ServiceSpec{
SessionAffinity: "None",
Type: api.ServiceTypeClusterIP,
},
},
},
}
one := int32(1)
rc := &api.ReplicationControllerList{
ListMeta: metav1.ListMeta{
ResourceVersion: "17",
},
Items: []api.ReplicationController{
{
ObjectMeta: metav1.ObjectMeta{Name: "rc1", Namespace: "test", ResourceVersion: "18"},
Spec: api.ReplicationControllerSpec{
Replicas: &one,
},
},
},
}
return pods, svc, rc
}
func testComponentStatusData() *api.ComponentStatusList {
good := api.ComponentStatus{
Conditions: []api.ComponentCondition{
{Type: api.ComponentHealthy, Status: api.ConditionTrue, Message: "ok"},
},
ObjectMeta: metav1.ObjectMeta{Name: "servergood"},
}
bad := api.ComponentStatus{
Conditions: []api.ComponentCondition{
{Type: api.ComponentHealthy, Status: api.ConditionFalse, Message: "", Error: "bad status: 500"},
},
ObjectMeta: metav1.ObjectMeta{Name: "serverbad"},
}
unknown := api.ComponentStatus{
Conditions: []api.ComponentCondition{
{Type: api.ComponentHealthy, Status: api.ConditionUnknown, Message: "", Error: "fizzbuzz error"},
},
ObjectMeta: metav1.ObjectMeta{Name: "serverunknown"},
}
return &api.ComponentStatusList{
Items: []api.ComponentStatus{good, bad, unknown},
}
}
// Verifies that schemas that are not in the master tree of Kubernetes can be retrieved via Get.
func TestGetUnknownSchemaObject(t *testing.T) {
t.Skip("This test is completely broken. The first thing it does is add the object to the scheme!")
tf := cmdtesting.NewTestFactory().WithNamespace("test")
defer tf.Cleanup()
_, _, codec := cmdtesting.NewExternalScheme()
tf.OpenAPISchemaFunc = openapitesting.CreateOpenAPISchemaFunc(openapiSchemaPath)
obj := &cmdtesting.ExternalType{
Kind: "Type",
APIVersion: "apitest/unlikelyversion",
Name: "foo",
}
tf.UnstructuredClient = &fake.RESTClient{
NegotiatedSerializer: unstructuredSerializer,
Resp: &http.Response{
StatusCode: 200, Header: defaultHeader(),
Body: objBody(codec, obj),
},
}
tf.ClientConfigVal = defaultClientConfig()
streams, _, buf, _ := genericclioptions.NewTestIOStreams()
cmd := NewCmdGet("kubectl", tf, streams)
cmd.SetOutput(buf)
cmd.Run(cmd, []string{"type", "foo"})
expected := []runtime.Object{cmdtesting.NewInternalType("", "", "foo")}
actual := []runtime.Object{}
if len(actual) != len(expected) {
t.Fatalf("expected: %#v, but actual: %#v", expected, actual)
}
t.Logf("actual: %#v", actual[0])
for i, obj := range actual {
expectedJSON := runtime.EncodeOrDie(codec, expected[i])
expectedMap := map[string]interface{}{}
if err := encjson.Unmarshal([]byte(expectedJSON), &expectedMap); err != nil {
t.Fatal(err)
}
actualJSON := runtime.EncodeOrDie(codec, obj)
actualMap := map[string]interface{}{}
if err := encjson.Unmarshal([]byte(actualJSON), &actualMap); err != nil {
t.Fatal(err)
}
if !reflect.DeepEqual(expectedMap, actualMap) {
t.Errorf("expectedMap: %#v, but actualMap: %#v", expectedMap, actualMap)
}
}
}
// Verifies that schemas that are not in the master tree of Kubernetes can be retrieved via Get.
func TestGetSchemaObject(t *testing.T) {
tf := cmdtesting.NewTestFactory().WithNamespace("test")
defer tf.Cleanup()
codec := scheme.Codecs.LegacyCodec(schema.GroupVersion{Version: "v1"})
t.Logf("%v", string(runtime.EncodeOrDie(codec, &api.ReplicationController{ObjectMeta: metav1.ObjectMeta{Name: "foo"}})))
tf.UnstructuredClient = &fake.RESTClient{
NegotiatedSerializer: unstructuredSerializer,
Resp: &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, &api.ReplicationController{ObjectMeta: metav1.ObjectMeta{Name: "foo"}})},
}
tf.ClientConfigVal = defaultClientConfig()
streams, _, buf, _ := genericclioptions.NewTestIOStreams()
cmd := NewCmdGet("kubectl", tf, streams)
cmd.Run(cmd, []string{"replicationcontrollers", "foo"})
if !strings.Contains(buf.String(), "foo") {
t.Errorf("unexpected output: %s", buf.String())
}
}
func TestGetObjectsWithOpenAPIOutputFormatPresent(t *testing.T) {
pods, _, _ := testData()
tf := cmdtesting.NewTestFactory().WithNamespace("test")
defer tf.Cleanup()
codec := scheme.Codecs.LegacyCodec(scheme.Scheme.PrioritizedVersionsAllGroups()...)
// overide the openAPISchema function to return custom output
// for Pod type.
tf.OpenAPISchemaFunc = testOpenAPISchemaData
tf.UnstructuredClient = &fake.RESTClient{
NegotiatedSerializer: unstructuredSerializer,
Resp: &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, &pods.Items[0])},
}
streams, _, buf, _ := genericclioptions.NewTestIOStreams()
cmd := NewCmdGet("kubectl", tf, streams)
cmd.SetOutput(buf)
cmd.Flags().Set(useOpenAPIPrintColumnFlagLabel, "true")
cmd.Run(cmd, []string{"pods", "foo"})
expected := `NAME RSRC
foo 10
`
if e, a := expected, buf.String(); e != a {
t.Errorf("expected %v, got %v", e, a)
}
}
type FakeResources struct {
resources map[schema.GroupVersionKind]proto.Schema
}
func (f FakeResources) LookupResource(s schema.GroupVersionKind) proto.Schema {
return f.resources[s]
}
var _ openapi.Resources = &FakeResources{}
func testOpenAPISchemaData() (openapi.Resources, error) {
return &FakeResources{
resources: map[schema.GroupVersionKind]proto.Schema{
{
Version: "v1",
Kind: "Pod",
}: &proto.Primitive{
BaseSchema: proto.BaseSchema{
Extensions: map[string]interface{}{
"x-kubernetes-print-columns": "custom-columns=NAME:.metadata.name,RSRC:.metadata.resourceVersion",
},
},
},
},
}, nil
}
func TestGetObjects(t *testing.T) {
pods, _, _ := testData()
tf := cmdtesting.NewTestFactory().WithNamespace("test")
defer tf.Cleanup()
codec := scheme.Codecs.LegacyCodec(scheme.Scheme.PrioritizedVersionsAllGroups()...)
tf.UnstructuredClient = &fake.RESTClient{
NegotiatedSerializer: unstructuredSerializer,
Resp: &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, &pods.Items[0])},
}
streams, _, buf, _ := genericclioptions.NewTestIOStreams()
cmd := NewCmdGet("kubectl", tf, streams)
cmd.SetOutput(buf)
cmd.Run(cmd, []string{"pods", "foo"})
expected := `NAME READY STATUS RESTARTS AGE
foo 0/0 0 <unknown>
`
if e, a := expected, buf.String(); e != a {
t.Errorf("expected %v, got %v", e, a)
}
}
func TestGetObjectsShowKind(t *testing.T) {
pods, _, _ := testData()
tf := cmdtesting.NewTestFactory().WithNamespace("test")
defer tf.Cleanup()
codec := scheme.Codecs.LegacyCodec(scheme.Scheme.PrioritizedVersionsAllGroups()...)
tf.UnstructuredClient = &fake.RESTClient{
NegotiatedSerializer: unstructuredSerializer,
Resp: &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, &pods.Items[0])},
}
streams, _, buf, _ := genericclioptions.NewTestIOStreams()
cmd := NewCmdGet("kubectl", tf, streams)
cmd.SetOutput(buf)
cmd.Flags().Set("show-kind", "true")
cmd.Run(cmd, []string{"pods", "foo"})
expected := `NAME READY STATUS RESTARTS AGE
pod/foo 0/0 0 <unknown>
`
if e, a := expected, buf.String(); e != a {
t.Errorf("expected %v, got %v", e, a)
}
}
func TestGetMultipleResourceTypesShowKinds(t *testing.T) {
pods, svcs, _ := testData()
tf := cmdtesting.NewTestFactory().WithNamespace("test")
defer tf.Cleanup()
codec := scheme.Codecs.LegacyCodec(scheme.Scheme.PrioritizedVersionsAllGroups()...)
tf.UnstructuredClient = &fake.RESTClient{
NegotiatedSerializer: unstructuredSerializer,
Resp: &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, &pods.Items[0])},
}
tf.UnstructuredClient = &fake.RESTClient{
NegotiatedSerializer: unstructuredSerializer,
Client: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
switch p, m := req.URL.Path, req.Method; {
case p == "/namespaces/test/pods" && m == "GET":
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, pods)}, nil
case p == "/namespaces/test/replicationcontrollers" && m == "GET":
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, &api.ReplicationControllerList{})}, nil
case p == "/namespaces/test/services" && m == "GET":
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, svcs)}, nil
case p == "/namespaces/test/statefulsets" && m == "GET":
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, &apiapps.StatefulSetList{})}, nil
case p == "/namespaces/test/horizontalpodautoscalers" && m == "GET":
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, &apiautoscaling.HorizontalPodAutoscalerList{})}, nil
case p == "/namespaces/test/jobs" && m == "GET":
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, &apibatchv1.JobList{})}, nil
case p == "/namespaces/test/cronjobs" && m == "GET":
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, &apibatchv1beta1.CronJobList{})}, nil
case p == "/namespaces/test/daemonsets" && m == "GET":
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, &apiapps.DaemonSetList{})}, nil
case p == "/namespaces/test/deployments" && m == "GET":
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, &apiextensionsv1beta1.DeploymentList{})}, nil
case p == "/namespaces/test/replicasets" && m == "GET":
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, &apiextensionsv1beta1.ReplicaSetList{})}, nil
default:
t.Fatalf("request url: %#v,and request: %#v", req.URL, req)
return nil, nil
}
}),
}
streams, _, buf, _ := genericclioptions.NewTestIOStreams()
cmd := NewCmdGet("kubectl", tf, streams)
cmd.SetOutput(buf)
cmd.Run(cmd, []string{"all"})
expected := `NAME READY STATUS RESTARTS AGE
pod/foo 0/0 0 <unknown>
pod/bar 0/0 0 <unknown>
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/baz ClusterIP <none> <none> <none> <unknown>
`
if e, a := expected, buf.String(); e != a {
t.Errorf("expected %v, got %v", e, a)
}
}
func TestGetObjectsShowLabels(t *testing.T) {
pods, _, _ := testData()
tf := cmdtesting.NewTestFactory().WithNamespace("test")
defer tf.Cleanup()
codec := scheme.Codecs.LegacyCodec(scheme.Scheme.PrioritizedVersionsAllGroups()...)
tf.UnstructuredClient = &fake.RESTClient{
NegotiatedSerializer: unstructuredSerializer,
Resp: &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, &pods.Items[0])},
}
streams, _, buf, _ := genericclioptions.NewTestIOStreams()
cmd := NewCmdGet("kubectl", tf, streams)
cmd.SetOutput(buf)
cmd.Flags().Set("show-labels", "true")
cmd.Run(cmd, []string{"pods", "foo"})
expected := `NAME READY STATUS RESTARTS AGE LABELS
foo 0/0 0 <unknown> <none>
`
if e, a := expected, buf.String(); e != a {
t.Errorf("expected %v, got %v", e, a)
}
}
func TestGetObjectIgnoreNotFound(t *testing.T) {
initTestErrorHandler(t)
ns := &api.NamespaceList{
ListMeta: metav1.ListMeta{
ResourceVersion: "1",
},
Items: []api.Namespace{
{
ObjectMeta: metav1.ObjectMeta{Name: "testns", Namespace: "test", ResourceVersion: "11"},
Spec: api.NamespaceSpec{},
},
},
}
tf := cmdtesting.NewTestFactory().WithNamespace("test")
defer tf.Cleanup()
codec := scheme.Codecs.LegacyCodec(scheme.Scheme.PrioritizedVersionsAllGroups()...)
tf.UnstructuredClient = &fake.RESTClient{
NegotiatedSerializer: unstructuredSerializer,
Client: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
switch p, m := req.URL.Path, req.Method; {
case p == "/namespaces/test/pods/nonexistentpod" && m == "GET":
return &http.Response{StatusCode: 404, Header: defaultHeader(), Body: stringBody("")}, nil
case p == "/api/v1/namespaces/test" && m == "GET":
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, &ns.Items[0])}, nil
default:
t.Fatalf("request url: %#v,and request: %#v", req.URL, req)
return nil, nil
}
}),
}
streams, _, buf, _ := genericclioptions.NewTestIOStreams()
cmd := NewCmdGet("kubectl", tf, streams)
cmd.SetOutput(buf)
cmd.Flags().Set("ignore-not-found", "true")
cmd.Flags().Set("output", "yaml")
cmd.Run(cmd, []string{"pods", "nonexistentpod"})
if buf.String() != "" {
t.Errorf("unexpected output: %s", buf.String())
}
}
func TestGetSortedObjects(t *testing.T) {
pods := &api.PodList{
ListMeta: metav1.ListMeta{
ResourceVersion: "15",
},
Items: []api.Pod{
{
ObjectMeta: metav1.ObjectMeta{Name: "c", Namespace: "test", ResourceVersion: "10"},
Spec: apitesting.V1DeepEqualSafePodSpec(),
},
{
ObjectMeta: metav1.ObjectMeta{Name: "b", Namespace: "test", ResourceVersion: "11"},
Spec: apitesting.V1DeepEqualSafePodSpec(),
},
{
ObjectMeta: metav1.ObjectMeta{Name: "a", Namespace: "test", ResourceVersion: "9"},
Spec: apitesting.V1DeepEqualSafePodSpec(),
},
},
}
tf := cmdtesting.NewTestFactory().WithNamespace("test")
defer tf.Cleanup()
codec := scheme.Codecs.LegacyCodec(scheme.Scheme.PrioritizedVersionsAllGroups()...)
tf.UnstructuredClient = &fake.RESTClient{
NegotiatedSerializer: unstructuredSerializer,
Resp: &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, pods)},
}
tf.ClientConfigVal = &restclient.Config{ContentConfig: restclient.ContentConfig{GroupVersion: &schema.GroupVersion{Version: "v1"}}}
streams, _, buf, _ := genericclioptions.NewTestIOStreams()
cmd := NewCmdGet("kubectl", tf, streams)
cmd.SetOutput(buf)
// sorting with metedata.name
cmd.Flags().Set("sort-by", ".metadata.name")
cmd.Run(cmd, []string{"pods"})
expected := `NAME READY STATUS RESTARTS AGE
a 0/0 0 <unknown>
b 0/0 0 <unknown>
c 0/0 0 <unknown>
`
if e, a := expected, buf.String(); e != a {
t.Errorf("expected %v, got %v", e, a)
}
}
func TestGetObjectsIdentifiedByFile(t *testing.T) {
pods, _, _ := testData()
tf := cmdtesting.NewTestFactory().WithNamespace("test")
defer tf.Cleanup()
codec := scheme.Codecs.LegacyCodec(scheme.Scheme.PrioritizedVersionsAllGroups()...)
tf.UnstructuredClient = &fake.RESTClient{
NegotiatedSerializer: unstructuredSerializer,
Resp: &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, &pods.Items[0])},
}
streams, _, buf, _ := genericclioptions.NewTestIOStreams()
cmd := NewCmdGet("kubectl", tf, streams)
cmd.SetOutput(buf)
cmd.Flags().Set("filename", "../../../../test/e2e/testing-manifests/statefulset/cassandra/controller.yaml")
cmd.Run(cmd, []string{})
expected := `NAME READY STATUS RESTARTS AGE
foo 0/0 0 <unknown>
`
if e, a := expected, buf.String(); e != a {
t.Errorf("expected %v, got %v", e, a)
}
}
func TestGetListObjects(t *testing.T) {
pods, _, _ := testData()
tf := cmdtesting.NewTestFactory().WithNamespace("test")
defer tf.Cleanup()
codec := scheme.Codecs.LegacyCodec(scheme.Scheme.PrioritizedVersionsAllGroups()...)
tf.UnstructuredClient = &fake.RESTClient{
NegotiatedSerializer: unstructuredSerializer,
Resp: &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, pods)},
}
streams, _, buf, _ := genericclioptions.NewTestIOStreams()
cmd := NewCmdGet("kubectl", tf, streams)
cmd.SetOutput(buf)
cmd.Run(cmd, []string{"pods"})
expected := `NAME READY STATUS RESTARTS AGE
foo 0/0 0 <unknown>
bar 0/0 0 <unknown>
`
if e, a := expected, buf.String(); e != a {
t.Errorf("expected %v, got %v", e, a)
}
}
func TestGetListComponentStatus(t *testing.T) {
statuses := testComponentStatusData()
tf := cmdtesting.NewTestFactory().WithNamespace("test")
defer tf.Cleanup()
codec := scheme.Codecs.LegacyCodec(scheme.Scheme.PrioritizedVersionsAllGroups()...)
tf.UnstructuredClient = &fake.RESTClient{
NegotiatedSerializer: unstructuredSerializer,
Resp: &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, statuses)},
}
streams, _, buf, _ := genericclioptions.NewTestIOStreams()
cmd := NewCmdGet("kubectl", tf, streams)
cmd.SetOutput(buf)
cmd.Run(cmd, []string{"componentstatuses"})
expected := `NAME STATUS MESSAGE ERROR
servergood Healthy ok
serverbad Unhealthy bad status: 500
serverunknown Unhealthy fizzbuzz error
`
if e, a := expected, buf.String(); e != a {
t.Errorf("expected %v, got %v", e, a)
}
}
func TestGetMixedGenericObjects(t *testing.T) {
initTestErrorHandler(t)
// ensure that a runtime.Object without
// an ObjectMeta field is handled properly
structuredObj := &metav1.Status{
TypeMeta: metav1.TypeMeta{
Kind: "Status",
APIVersion: "v1",
},
Status: "Success",
Message: "",
Reason: "",
Code: 0,
}
tf := cmdtesting.NewTestFactory().WithNamespace("test")
defer tf.Cleanup()
codec := scheme.Codecs.LegacyCodec(scheme.Scheme.PrioritizedVersionsAllGroups()...)
tf.UnstructuredClient = &fake.RESTClient{
NegotiatedSerializer: unstructuredSerializer,
Client: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
switch req.URL.Path {
case "/namespaces/test/pods":
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, structuredObj)}, nil
default:
t.Fatalf("request url: %#v,and request: %#v", req.URL, req)
return nil, nil
}
}),
}
tf.ClientConfigVal = defaultClientConfig()
streams, _, buf, _ := genericclioptions.NewTestIOStreams()
cmd := NewCmdGet("kubectl", tf, streams)
cmd.SetOutput(buf)
cmd.Flags().Set("output", "json")
cmd.Run(cmd, []string{"pods"})
expected := `{
"apiVersion": "v1",
"items": [
{
"apiVersion": "v1",
"kind": "Status",
"metadata": {},
"status": "Success"
}
],
"kind": "List",
"metadata": {
"resourceVersion": "",
"selfLink": ""
}
}
`
if e, a := expected, buf.String(); e != a {
t.Errorf("expected %v, got %v", e, a)
}
}
func TestGetMultipleTypeObjects(t *testing.T) {
pods, svc, _ := testData()
tf := cmdtesting.NewTestFactory().WithNamespace("test")
defer tf.Cleanup()
codec := scheme.Codecs.LegacyCodec(scheme.Scheme.PrioritizedVersionsAllGroups()...)
tf.UnstructuredClient = &fake.RESTClient{
NegotiatedSerializer: unstructuredSerializer,
Client: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
switch req.URL.Path {
case "/namespaces/test/pods":
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, pods)}, nil
case "/namespaces/test/services":
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, svc)}, nil
default:
t.Fatalf("request url: %#v,and request: %#v", req.URL, req)
return nil, nil
}
}),
}
streams, _, buf, _ := genericclioptions.NewTestIOStreams()
cmd := NewCmdGet("kubectl", tf, streams)
cmd.SetOutput(buf)
cmd.Run(cmd, []string{"pods,services"})
expected := `NAME READY STATUS RESTARTS AGE
pod/foo 0/0 0 <unknown>
pod/bar 0/0 0 <unknown>
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/baz ClusterIP <none> <none> <none> <unknown>
`
if e, a := expected, buf.String(); e != a {
t.Errorf("expected %v, got %v", e, a)
}
}
func TestGetMultipleTypeObjectsAsList(t *testing.T) {
pods, svc, _ := testData()
tf := cmdtesting.NewTestFactory().WithNamespace("test")
defer tf.Cleanup()
codec := scheme.Codecs.LegacyCodec(scheme.Scheme.PrioritizedVersionsAllGroups()...)
tf.UnstructuredClient = &fake.RESTClient{
NegotiatedSerializer: unstructuredSerializer,
Client: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
switch req.URL.Path {
case "/namespaces/test/pods":
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, pods)}, nil
case "/namespaces/test/services":
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, svc)}, nil
default:
t.Fatalf("request url: %#v,and request: %#v", req.URL, req)
return nil, nil
}
}),
}
tf.ClientConfigVal = defaultClientConfig()
streams, _, buf, _ := genericclioptions.NewTestIOStreams()
cmd := NewCmdGet("kubectl", tf, streams)
cmd.SetOutput(buf)
cmd.Flags().Set("output", "json")
cmd.Run(cmd, []string{"pods,services"})
expected := `{
"apiVersion": "v1",
"items": [
{
"apiVersion": "v1",
"kind": "Pod",
"metadata": {
"creationTimestamp": null,
"name": "foo",
"namespace": "test",
"resourceVersion": "10"
},
"spec": {
"containers": null,
"dnsPolicy": "ClusterFirst",
"restartPolicy": "Always",
"securityContext": {},
"terminationGracePeriodSeconds": 30
},
"status": {}
},
{
"apiVersion": "v1",
"kind": "Pod",
"metadata": {
"creationTimestamp": null,
"name": "bar",
"namespace": "test",
"resourceVersion": "11"
},
"spec": {
"containers": null,
"dnsPolicy": "ClusterFirst",
"restartPolicy": "Always",
"securityContext": {},
"terminationGracePeriodSeconds": 30
},
"status": {}
},
{
"apiVersion": "v1",
"kind": "Service",
"metadata": {
"creationTimestamp": null,
"name": "baz",
"namespace": "test",
"resourceVersion": "12"
},
"spec": {
"sessionAffinity": "None",
"type": "ClusterIP"
},
"status": {
"loadBalancer": {}
}
}
],
"kind": "List",
"metadata": {
"resourceVersion": "",
"selfLink": ""
}
}
`
if e, a := expected, buf.String(); e != a {
t.Errorf("did not match: %v", diff.StringDiff(e, a))
}
}
func TestGetMultipleTypeObjectsWithLabelSelector(t *testing.T) {
pods, svc, _ := testData()
tf := cmdtesting.NewTestFactory().WithNamespace("test")
defer tf.Cleanup()
codec := scheme.Codecs.LegacyCodec(scheme.Scheme.PrioritizedVersionsAllGroups()...)
tf.UnstructuredClient = &fake.RESTClient{
NegotiatedSerializer: unstructuredSerializer,
Client: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
if req.URL.Query().Get(metav1.LabelSelectorQueryParam("v1")) != "a=b" {
t.Fatalf("request url: %#v,and request: %#v", req.URL, req)
}
switch req.URL.Path {
case "/namespaces/test/pods":
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, pods)}, nil
case "/namespaces/test/services":
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, svc)}, nil
default:
t.Fatalf("request url: %#v,and request: %#v", req.URL, req)
return nil, nil
}
}),
}
streams, _, buf, _ := genericclioptions.NewTestIOStreams()
cmd := NewCmdGet("kubectl", tf, streams)
cmd.SetOutput(buf)
cmd.Flags().Set("selector", "a=b")
cmd.Run(cmd, []string{"pods,services"})
expected := `NAME READY STATUS RESTARTS AGE
pod/foo 0/0 0 <unknown>
pod/bar 0/0 0 <unknown>
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/baz ClusterIP <none> <none> <none> <unknown>
`
if e, a := expected, buf.String(); e != a {
t.Errorf("expected %v, got %v", e, a)
}
}
func TestGetMultipleTypeObjectsWithFieldSelector(t *testing.T) {
pods, svc, _ := testData()
tf := cmdtesting.NewTestFactory().WithNamespace("test")
defer tf.Cleanup()
codec := scheme.Codecs.LegacyCodec(scheme.Scheme.PrioritizedVersionsAllGroups()...)
tf.UnstructuredClient = &fake.RESTClient{
NegotiatedSerializer: unstructuredSerializer,
Client: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
if req.URL.Query().Get(metav1.FieldSelectorQueryParam("v1")) != "a=b" {
t.Fatalf("unexpected request: %#v\n%#v", req.URL, req)
}
switch req.URL.Path {
case "/namespaces/test/pods":
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, pods)}, nil
case "/namespaces/test/services":
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, svc)}, nil
default:
t.Fatalf("unexpected request: %#v\n%#v", req.URL, req)
return nil, nil
}
}),
}
streams, _, buf, _ := genericclioptions.NewTestIOStreams()
cmd := NewCmdGet("kubectl", tf, streams)
cmd.SetOutput(buf)
cmd.Flags().Set("field-selector", "a=b")
cmd.Run(cmd, []string{"pods,services"})
expected := `NAME READY STATUS RESTARTS AGE
pod/foo 0/0 0 <unknown>
pod/bar 0/0 0 <unknown>
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/baz ClusterIP <none> <none> <none> <unknown>
`
if e, a := expected, buf.String(); e != a {
t.Errorf("expected %v, got %v", e, a)
}
}
func TestGetMultipleTypeObjectsWithDirectReference(t *testing.T) {
_, svc, _ := testData()
node := &api.Node{
ObjectMeta: metav1.ObjectMeta{
Name: "foo",
},
}
tf := cmdtesting.NewTestFactory().WithNamespace("test")
defer tf.Cleanup()
codec := scheme.Codecs.LegacyCodec(scheme.Scheme.PrioritizedVersionsAllGroups()...)
tf.UnstructuredClient = &fake.RESTClient{
NegotiatedSerializer: unstructuredSerializer,
Client: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
switch req.URL.Path {
case "/nodes/foo":
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, node)}, nil
case "/namespaces/test/services/bar":
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, &svc.Items[0])}, nil
default:
t.Fatalf("request url: %#v,and request: %#v", req.URL, req)
return nil, nil
}
}),
}
streams, _, buf, _ := genericclioptions.NewTestIOStreams()
cmd := NewCmdGet("kubectl", tf, streams)
cmd.SetOutput(buf)
cmd.Run(cmd, []string{"services/bar", "node/foo"})
expected := `NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/baz ClusterIP <none> <none> <none> <unknown>
NAME STATUS ROLES AGE VERSION
node/foo Unknown <none> <unknown>
`
if e, a := expected, buf.String(); e != a {
t.Errorf("expected %v, got %v", e, a)
}
}
func watchTestData() ([]api.Pod, []watch.Event) {
pods := []api.Pod{
{
ObjectMeta: metav1.ObjectMeta{
Name: "bar",
Namespace: "test",
ResourceVersion: "9",
},
Spec: apitesting.V1DeepEqualSafePodSpec(),
},
{
ObjectMeta: metav1.ObjectMeta{
Name: "foo",
Namespace: "test",
ResourceVersion: "10",
},
Spec: apitesting.V1DeepEqualSafePodSpec(),
},
}
events := []watch.Event{
// current state events
{
Type: watch.Added,
Object: &api.Pod{
ObjectMeta: metav1.ObjectMeta{
Name: "bar",
Namespace: "test",
ResourceVersion: "9",
},
Spec: apitesting.V1DeepEqualSafePodSpec(),
},
},
{
Type: watch.Added,
Object: &api.Pod{
ObjectMeta: metav1.ObjectMeta{
Name: "foo",
Namespace: "test",
ResourceVersion: "10",
},
Spec: apitesting.V1DeepEqualSafePodSpec(),
},
},
// resource events
{
Type: watch.Modified,
Object: &api.Pod{
ObjectMeta: metav1.ObjectMeta{
Name: "foo",
Namespace: "test",
ResourceVersion: "11",
},
Spec: apitesting.V1DeepEqualSafePodSpec(),
},
},
{
Type: watch.Deleted,
Object: &api.Pod{
ObjectMeta: metav1.ObjectMeta{
Name: "foo",
Namespace: "test",
ResourceVersion: "12",
},
Spec: apitesting.V1DeepEqualSafePodSpec(),
},
},
}
return pods, events
}
func TestWatchLabelSelector(t *testing.T) {
pods, events := watchTestData()
tf := cmdtesting.NewTestFactory().WithNamespace("test")
defer tf.Cleanup()
codec := scheme.Codecs.LegacyCodec(scheme.Scheme.PrioritizedVersionsAllGroups()...)
podList := &api.PodList{
Items: pods,
ListMeta: metav1.ListMeta{
ResourceVersion: "10",
},
}
tf.UnstructuredClient = &fake.RESTClient{
NegotiatedSerializer: unstructuredSerializer,
Client: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
if req.URL.Query().Get(metav1.LabelSelectorQueryParam("v1")) != "a=b" {
t.Fatalf("request url: %#v,and request: %#v", req.URL, req)
}
switch req.URL.Path {
case "/namespaces/test/pods":
if req.URL.Query().Get("watch") == "true" {
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: watchBody(codec, events[2:])}, nil
}
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, podList)}, nil
default:
t.Fatalf("request url: %#v,and request: %#v", req.URL, req)
return nil, nil
}
}),
}
streams, _, buf, _ := genericclioptions.NewTestIOStreams()
cmd := NewCmdGet("kubectl", tf, streams)
cmd.SetOutput(buf)
cmd.Flags().Set("watch", "true")
cmd.Flags().Set("selector", "a=b")
cmd.Run(cmd, []string{"pods"})
expected := `NAME READY STATUS RESTARTS AGE
bar 0/0 0 <unknown>
foo 0/0 0 <unknown>
foo 0/0 0 <unknown>
foo 0/0 0 <unknown>
`
if e, a := expected, buf.String(); e != a {
t.Errorf("expected %v, got %v", e, a)
}
}
func TestWatchFieldSelector(t *testing.T) {
pods, events := watchTestData()
tf := cmdtesting.NewTestFactory().WithNamespace("test")
defer tf.Cleanup()
codec := scheme.Codecs.LegacyCodec(scheme.Scheme.PrioritizedVersionsAllGroups()...)
podList := &api.PodList{
Items: pods,
ListMeta: metav1.ListMeta{
ResourceVersion: "10",
},
}
tf.UnstructuredClient = &fake.RESTClient{
NegotiatedSerializer: unstructuredSerializer,
Client: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
if req.URL.Query().Get(metav1.FieldSelectorQueryParam("v1")) != "a=b" {
t.Fatalf("unexpected request: %#v\n%#v", req.URL, req)
}
switch req.URL.Path {
case "/namespaces/test/pods":
if req.URL.Query().Get("watch") == "true" {
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: watchBody(codec, events[2:])}, nil
}
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, podList)}, nil
default:
t.Fatalf("unexpected request: %#v\n%#v", req.URL, req)
return nil, nil
}
}),
}
streams, _, buf, _ := genericclioptions.NewTestIOStreams()
cmd := NewCmdGet("kubectl", tf, streams)
cmd.SetOutput(buf)
cmd.Flags().Set("watch", "true")
cmd.Flags().Set("field-selector", "a=b")
cmd.Run(cmd, []string{"pods"})
expected := `NAME READY STATUS RESTARTS AGE
bar 0/0 0 <unknown>
foo 0/0 0 <unknown>
foo 0/0 0 <unknown>
foo 0/0 0 <unknown>
`
if e, a := expected, buf.String(); e != a {
t.Errorf("expected %v, got %v", e, a)
}
}
func TestWatchResource(t *testing.T) {
pods, events := watchTestData()
tf := cmdtesting.NewTestFactory().WithNamespace("test")
defer tf.Cleanup()
codec := scheme.Codecs.LegacyCodec(scheme.Scheme.PrioritizedVersionsAllGroups()...)
tf.UnstructuredClient = &fake.RESTClient{
NegotiatedSerializer: unstructuredSerializer,
Client: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
switch req.URL.Path {
case "/namespaces/test/pods/foo":
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, &pods[1])}, nil
case "/namespaces/test/pods":
if req.URL.Query().Get("watch") == "true" && req.URL.Query().Get("fieldSelector") == "metadata.name=foo" {
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: watchBody(codec, events[1:])}, nil
}
t.Fatalf("request url: %#v,and request: %#v", req.URL, req)
return nil, nil
default:
t.Fatalf("request url: %#v,and request: %#v", req.URL, req)
return nil, nil
}
}),
}
streams, _, buf, _ := genericclioptions.NewTestIOStreams()
cmd := NewCmdGet("kubectl", tf, streams)
cmd.SetOutput(buf)
cmd.Flags().Set("watch", "true")
cmd.Run(cmd, []string{"pods", "foo"})
expected := `NAME READY STATUS RESTARTS AGE
foo 0/0 0 <unknown>
foo 0/0 0 <unknown>
foo 0/0 0 <unknown>
`
if e, a := expected, buf.String(); e != a {
t.Errorf("expected %v, got %v", e, a)
}
}
func TestWatchResourceIdentifiedByFile(t *testing.T) {
pods, events := watchTestData()
tf := cmdtesting.NewTestFactory().WithNamespace("test")
defer tf.Cleanup()
codec := scheme.Codecs.LegacyCodec(scheme.Scheme.PrioritizedVersionsAllGroups()...)
tf.UnstructuredClient = &fake.RESTClient{
NegotiatedSerializer: unstructuredSerializer,
Client: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
switch req.URL.Path {
case "/namespaces/test/replicationcontrollers/cassandra":
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, &pods[1])}, nil
case "/namespaces/test/replicationcontrollers":
if req.URL.Query().Get("watch") == "true" && req.URL.Query().Get("fieldSelector") == "metadata.name=cassandra" {
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: watchBody(codec, events[1:])}, nil
}
t.Fatalf("request url: %#v,and request: %#v", req.URL, req)
return nil, nil
default:
t.Fatalf("request url: %#v,and request: %#v", req.URL, req)
return nil, nil
}
}),
}
streams, _, buf, _ := genericclioptions.NewTestIOStreams()
cmd := NewCmdGet("kubectl", tf, streams)
cmd.SetOutput(buf)
cmd.Flags().Set("watch", "true")
cmd.Flags().Set("filename", "../../../../test/e2e/testing-manifests/statefulset/cassandra/controller.yaml")
cmd.Run(cmd, []string{})
expected := `NAME READY STATUS RESTARTS AGE
foo 0/0 0 <unknown>
foo 0/0 0 <unknown>
foo 0/0 0 <unknown>
`
if e, a := expected, buf.String(); e != a {
t.Errorf("expected %v, got %v", e, a)
}
}
func TestWatchOnlyResource(t *testing.T) {
pods, events := watchTestData()
tf := cmdtesting.NewTestFactory().WithNamespace("test")
defer tf.Cleanup()
codec := scheme.Codecs.LegacyCodec(scheme.Scheme.PrioritizedVersionsAllGroups()...)
tf.UnstructuredClient = &fake.RESTClient{
NegotiatedSerializer: unstructuredSerializer,
Client: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
switch req.URL.Path {
case "/namespaces/test/pods/foo":
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, &pods[1])}, nil
case "/namespaces/test/pods":
if req.URL.Query().Get("watch") == "true" && req.URL.Query().Get("fieldSelector") == "metadata.name=foo" {
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: watchBody(codec, events[1:])}, nil
}
t.Fatalf("request url: %#v,and request: %#v", req.URL, req)
return nil, nil
default:
t.Fatalf("request url: %#v,and request: %#v", req.URL, req)
return nil, nil
}
}),
}
streams, _, buf, _ := genericclioptions.NewTestIOStreams()
cmd := NewCmdGet("kubectl", tf, streams)
cmd.SetOutput(buf)
cmd.Flags().Set("watch-only", "true")
cmd.Run(cmd, []string{"pods", "foo"})
expected := `NAME READY STATUS RESTARTS AGE
foo 0/0 0 <unknown>
foo 0/0 0 <unknown>
`
if e, a := expected, buf.String(); e != a {
t.Errorf("expected %v, got %v", e, a)
}
}
func TestWatchOnlyList(t *testing.T) {
pods, events := watchTestData()
tf := cmdtesting.NewTestFactory().WithNamespace("test")
defer tf.Cleanup()
codec := scheme.Codecs.LegacyCodec(scheme.Scheme.PrioritizedVersionsAllGroups()...)
podList := &api.PodList{
Items: pods,
ListMeta: metav1.ListMeta{
ResourceVersion: "10",
},
}
tf.UnstructuredClient = &fake.RESTClient{
NegotiatedSerializer: unstructuredSerializer,
Client: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
switch req.URL.Path {
case "/namespaces/test/pods":
if req.URL.Query().Get("watch") == "true" {
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: watchBody(codec, events[2:])}, nil
}
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, podList)}, nil
default:
t.Fatalf("request url: %#v,and request: %#v", req.URL, req)
return nil, nil
}
}),
}
streams, _, buf, _ := genericclioptions.NewTestIOStreams()
cmd := NewCmdGet("kubectl", tf, streams)
cmd.SetOutput(buf)
cmd.Flags().Set("watch-only", "true")
cmd.Run(cmd, []string{"pods"})
expected := `NAME READY STATUS RESTARTS AGE
foo 0/0 0 <unknown>
foo 0/0 0 <unknown>
`
if e, a := expected, buf.String(); e != a {
t.Errorf("expected %v, got %v", e, a)
}
}
func watchBody(codec runtime.Codec, events []watch.Event) io.ReadCloser {
buf := bytes.NewBuffer([]byte{})
enc := restclientwatch.NewEncoder(streaming.NewEncoder(buf, codec), codec)
for i := range events {
enc.Encode(&events[i])
}
return json.Framer.NewFrameReader(ioutil.NopCloser(buf))
}