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dd2c9c578d
Introduce DescriberSettings for Describer display options Introduce --show-events flag and DescriberSettings in Describer methods Introduce unit-tests Regenerated kubectl describe docs Add events flag tests to test-cmd.sh Signed-off-by: dhodovsk@redhat.com Signed-off-by: jchaloup@redhat.com
637 lines
18 KiB
Go
637 lines
18 KiB
Go
/*
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Copyright 2014 The Kubernetes Authors All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package kubectl
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import (
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"bytes"
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"fmt"
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"reflect"
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"strings"
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"testing"
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"time"
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"k8s.io/kubernetes/pkg/api"
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"k8s.io/kubernetes/pkg/api/resource"
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"k8s.io/kubernetes/pkg/api/unversioned"
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"k8s.io/kubernetes/pkg/apis/extensions"
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"k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset/fake"
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client "k8s.io/kubernetes/pkg/client/unversioned"
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"k8s.io/kubernetes/pkg/client/unversioned/testclient"
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)
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type describeClient struct {
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T *testing.T
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Namespace string
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Err error
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client.Interface
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}
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func TestDescribePod(t *testing.T) {
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fake := testclient.NewSimpleFake(&api.Pod{
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ObjectMeta: api.ObjectMeta{
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Name: "bar",
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Namespace: "foo",
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},
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})
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c := &describeClient{T: t, Namespace: "foo", Interface: fake}
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d := PodDescriber{c}
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out, err := d.Describe("foo", "bar", DescriberSettings{ShowEvents: true})
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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if !strings.Contains(out, "bar") || !strings.Contains(out, "Status:") {
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t.Errorf("unexpected out: %s", out)
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}
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}
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func TestDescribeService(t *testing.T) {
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fake := testclient.NewSimpleFake(&api.Service{
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ObjectMeta: api.ObjectMeta{
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Name: "bar",
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Namespace: "foo",
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},
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})
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c := &describeClient{T: t, Namespace: "foo", Interface: fake}
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d := ServiceDescriber{c}
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out, err := d.Describe("foo", "bar", DescriberSettings{ShowEvents: true})
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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if !strings.Contains(out, "Labels:") || !strings.Contains(out, "bar") {
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t.Errorf("unexpected out: %s", out)
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}
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}
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func TestPodDescribeResultsSorted(t *testing.T) {
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// Arrange
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fake := testclient.NewSimpleFake(&api.EventList{
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Items: []api.Event{
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{
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Source: api.EventSource{Component: "kubelet"},
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Message: "Item 1",
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FirstTimestamp: unversioned.NewTime(time.Date(2014, time.January, 15, 0, 0, 0, 0, time.UTC)),
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LastTimestamp: unversioned.NewTime(time.Date(2014, time.January, 15, 0, 0, 0, 0, time.UTC)),
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Count: 1,
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Type: api.EventTypeNormal,
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},
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{
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Source: api.EventSource{Component: "scheduler"},
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Message: "Item 2",
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FirstTimestamp: unversioned.NewTime(time.Date(1987, time.June, 17, 0, 0, 0, 0, time.UTC)),
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LastTimestamp: unversioned.NewTime(time.Date(1987, time.June, 17, 0, 0, 0, 0, time.UTC)),
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Count: 1,
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Type: api.EventTypeNormal,
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},
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{
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Source: api.EventSource{Component: "kubelet"},
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Message: "Item 3",
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FirstTimestamp: unversioned.NewTime(time.Date(2002, time.December, 25, 0, 0, 0, 0, time.UTC)),
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LastTimestamp: unversioned.NewTime(time.Date(2002, time.December, 25, 0, 0, 0, 0, time.UTC)),
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Count: 1,
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Type: api.EventTypeNormal,
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},
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},
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})
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c := &describeClient{T: t, Namespace: "foo", Interface: fake}
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d := PodDescriber{c}
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// Act
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out, err := d.Describe("foo", "bar", DescriberSettings{ShowEvents: true})
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// Assert
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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VerifyDatesInOrder(out, "\n" /* rowDelimiter */, "\t" /* columnDelimiter */, t)
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}
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func TestDescribeContainers(t *testing.T) {
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testCases := []struct {
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container api.Container
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status api.ContainerStatus
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expectedElements []string
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}{
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// Running state.
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{
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container: api.Container{Name: "test", Image: "image"},
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status: api.ContainerStatus{
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Name: "test",
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State: api.ContainerState{
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Running: &api.ContainerStateRunning{
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StartedAt: unversioned.NewTime(time.Now()),
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},
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},
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Ready: true,
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RestartCount: 7,
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},
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expectedElements: []string{"test", "State", "Running", "Ready", "True", "Restart Count", "7", "Image", "image", "Started"},
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},
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// Waiting state.
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{
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container: api.Container{Name: "test", Image: "image"},
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status: api.ContainerStatus{
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Name: "test",
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State: api.ContainerState{
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Waiting: &api.ContainerStateWaiting{
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Reason: "potato",
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},
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},
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Ready: true,
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RestartCount: 7,
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},
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expectedElements: []string{"test", "State", "Waiting", "Ready", "True", "Restart Count", "7", "Image", "image", "Reason", "potato"},
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},
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// Terminated state.
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{
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container: api.Container{Name: "test", Image: "image"},
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status: api.ContainerStatus{
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Name: "test",
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State: api.ContainerState{
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Terminated: &api.ContainerStateTerminated{
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StartedAt: unversioned.NewTime(time.Now()),
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FinishedAt: unversioned.NewTime(time.Now()),
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Reason: "potato",
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ExitCode: 2,
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},
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},
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Ready: true,
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RestartCount: 7,
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},
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expectedElements: []string{"test", "State", "Terminated", "Ready", "True", "Restart Count", "7", "Image", "image", "Reason", "potato", "Started", "Finished", "Exit Code", "2"},
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},
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// Last Terminated
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{
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container: api.Container{Name: "test", Image: "image"},
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status: api.ContainerStatus{
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Name: "test",
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State: api.ContainerState{
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Running: &api.ContainerStateRunning{
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StartedAt: unversioned.NewTime(time.Now()),
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},
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},
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LastTerminationState: api.ContainerState{
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Terminated: &api.ContainerStateTerminated{
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StartedAt: unversioned.NewTime(time.Now().Add(time.Second * 3)),
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FinishedAt: unversioned.NewTime(time.Now()),
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Reason: "crashing",
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ExitCode: 3,
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},
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},
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Ready: true,
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RestartCount: 7,
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},
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expectedElements: []string{"test", "State", "Terminated", "Ready", "True", "Restart Count", "7", "Image", "image", "Started", "Finished", "Exit Code", "2", "crashing", "3"},
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},
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// No state defaults to waiting.
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{
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container: api.Container{Name: "test", Image: "image"},
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status: api.ContainerStatus{
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Name: "test",
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Ready: true,
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RestartCount: 7,
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},
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expectedElements: []string{"test", "State", "Waiting", "Ready", "True", "Restart Count", "7", "Image", "image"},
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},
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// Env
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{
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container: api.Container{Name: "test", Image: "image", Env: []api.EnvVar{{Name: "envname", Value: "xyz"}}},
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status: api.ContainerStatus{
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Name: "test",
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Ready: true,
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RestartCount: 7,
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},
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expectedElements: []string{"test", "State", "Waiting", "Ready", "True", "Restart Count", "7", "Image", "image", "envname", "xyz"},
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},
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// Command
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{
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container: api.Container{Name: "test", Image: "image", Command: []string{"sleep", "1000"}},
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status: api.ContainerStatus{
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Name: "test",
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Ready: true,
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RestartCount: 7,
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},
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expectedElements: []string{"test", "State", "Waiting", "Ready", "True", "Restart Count", "7", "Image", "image", "sleep", "1000"},
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},
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// Args
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{
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container: api.Container{Name: "test", Image: "image", Args: []string{"time", "1000"}},
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status: api.ContainerStatus{
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Name: "test",
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Ready: true,
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RestartCount: 7,
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},
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expectedElements: []string{"test", "State", "Waiting", "Ready", "True", "Restart Count", "7", "Image", "image", "time", "1000"},
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},
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// Using limits.
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{
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container: api.Container{
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Name: "test",
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Image: "image",
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Resources: api.ResourceRequirements{
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Limits: api.ResourceList{
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api.ResourceName(api.ResourceCPU): resource.MustParse("1000"),
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api.ResourceName(api.ResourceMemory): resource.MustParse("4G"),
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api.ResourceName(api.ResourceStorage): resource.MustParse("20G"),
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},
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},
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},
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status: api.ContainerStatus{
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Name: "test",
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Ready: true,
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RestartCount: 7,
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},
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expectedElements: []string{"cpu", "1k", "memory", "4G", "storage", "20G"},
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},
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}
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for i, testCase := range testCases {
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out := new(bytes.Buffer)
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pod := api.Pod{
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Spec: api.PodSpec{
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Containers: []api.Container{testCase.container},
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},
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Status: api.PodStatus{
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ContainerStatuses: []api.ContainerStatus{testCase.status},
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},
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}
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describeContainers(pod.Spec.Containers, pod.Status.ContainerStatuses, EnvValueRetriever(&pod), out, "")
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output := out.String()
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for _, expected := range testCase.expectedElements {
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if !strings.Contains(output, expected) {
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t.Errorf("Test case %d: expected to find %q in output: %q", i, expected, output)
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}
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}
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}
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}
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func TestDescribers(t *testing.T) {
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first := &api.Event{}
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second := &api.Pod{}
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var third *api.Pod
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testErr := fmt.Errorf("test")
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d := Describers{}
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d.Add(
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func(e *api.Event, p *api.Pod) (string, error) {
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if e != first {
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t.Errorf("first argument not equal: %#v", e)
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}
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if p != second {
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t.Errorf("second argument not equal: %#v", p)
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}
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return "test", testErr
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},
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)
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if out, err := d.DescribeObject(first, second); out != "test" || err != testErr {
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t.Errorf("unexpected result: %s %v", out, err)
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}
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if out, err := d.DescribeObject(first, second, third); out != "" || err == nil {
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t.Errorf("unexpected result: %s %v", out, err)
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} else {
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if noDescriber, ok := err.(ErrNoDescriber); ok {
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if !reflect.DeepEqual(noDescriber.Types, []string{"*api.Event", "*api.Pod", "*api.Pod"}) {
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t.Errorf("unexpected describer: %v", err)
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}
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} else {
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t.Errorf("unexpected error type: %v", err)
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}
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}
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d.Add(
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func(e *api.Event) (string, error) {
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if e != first {
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t.Errorf("first argument not equal: %#v", e)
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}
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return "simpler", testErr
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},
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)
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if out, err := d.DescribeObject(first); out != "simpler" || err != testErr {
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t.Errorf("unexpected result: %s %v", out, err)
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}
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}
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func TestDefaultDescribers(t *testing.T) {
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out, err := DefaultObjectDescriber.DescribeObject(&api.Pod{ObjectMeta: api.ObjectMeta{Name: "foo"}})
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if err != nil {
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t.Fatalf("unexpected error: %v", err)
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}
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if !strings.Contains(out, "foo") {
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t.Errorf("unexpected output: %s", out)
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}
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out, err = DefaultObjectDescriber.DescribeObject(&api.Service{ObjectMeta: api.ObjectMeta{Name: "foo"}})
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if err != nil {
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t.Fatalf("unexpected error: %v", err)
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}
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if !strings.Contains(out, "foo") {
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t.Errorf("unexpected output: %s", out)
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}
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out, err = DefaultObjectDescriber.DescribeObject(&api.ReplicationController{ObjectMeta: api.ObjectMeta{Name: "foo"}})
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if err != nil {
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t.Fatalf("unexpected error: %v", err)
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}
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if !strings.Contains(out, "foo") {
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t.Errorf("unexpected output: %s", out)
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}
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out, err = DefaultObjectDescriber.DescribeObject(&api.Node{ObjectMeta: api.ObjectMeta{Name: "foo"}})
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if err != nil {
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t.Fatalf("unexpected error: %v", err)
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}
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if !strings.Contains(out, "foo") {
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t.Errorf("unexpected output: %s", out)
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}
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}
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func TestGetPodsTotalRequests(t *testing.T) {
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testCases := []struct {
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pods *api.PodList
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expectedReqs, expectedLimits map[api.ResourceName]resource.Quantity
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}{
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{
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pods: &api.PodList{
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Items: []api.Pod{
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{
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Spec: api.PodSpec{
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Containers: []api.Container{
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{
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Resources: api.ResourceRequirements{
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Requests: api.ResourceList{
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api.ResourceName(api.ResourceCPU): resource.MustParse("1"),
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api.ResourceName(api.ResourceMemory): resource.MustParse("300Mi"),
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api.ResourceName(api.ResourceStorage): resource.MustParse("1G"),
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},
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},
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},
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{
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Resources: api.ResourceRequirements{
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Requests: api.ResourceList{
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api.ResourceName(api.ResourceCPU): resource.MustParse("90m"),
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api.ResourceName(api.ResourceMemory): resource.MustParse("120Mi"),
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api.ResourceName(api.ResourceStorage): resource.MustParse("200M"),
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},
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},
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},
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},
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},
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},
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{
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Spec: api.PodSpec{
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Containers: []api.Container{
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{
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Resources: api.ResourceRequirements{
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Requests: api.ResourceList{
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api.ResourceName(api.ResourceCPU): resource.MustParse("60m"),
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api.ResourceName(api.ResourceMemory): resource.MustParse("43Mi"),
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api.ResourceName(api.ResourceStorage): resource.MustParse("500M"),
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},
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},
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},
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{
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Resources: api.ResourceRequirements{
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Requests: api.ResourceList{
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api.ResourceName(api.ResourceCPU): resource.MustParse("34m"),
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api.ResourceName(api.ResourceMemory): resource.MustParse("83Mi"),
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api.ResourceName(api.ResourceStorage): resource.MustParse("700M"),
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},
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},
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},
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},
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},
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},
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},
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},
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expectedReqs: map[api.ResourceName]resource.Quantity{
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api.ResourceName(api.ResourceCPU): resource.MustParse("1.184"),
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api.ResourceName(api.ResourceMemory): resource.MustParse("546Mi"),
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api.ResourceName(api.ResourceStorage): resource.MustParse("2.4G"),
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},
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},
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}
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for _, testCase := range testCases {
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reqs, _, err := getPodsTotalRequestsAndLimits(testCase.pods)
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if err != nil {
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t.Errorf("Unexpected error %v", err)
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}
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if !reflect.DeepEqual(reqs, testCase.expectedReqs) {
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t.Errorf("Expected %v, got %v", testCase.expectedReqs, reqs)
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}
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}
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}
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func TestPersistentVolumeDescriber(t *testing.T) {
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tests := map[string]*api.PersistentVolume{
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"hostpath": {
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Spec: api.PersistentVolumeSpec{
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PersistentVolumeSource: api.PersistentVolumeSource{
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HostPath: &api.HostPathVolumeSource{},
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},
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},
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},
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"gce": {
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Spec: api.PersistentVolumeSpec{
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PersistentVolumeSource: api.PersistentVolumeSource{
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GCEPersistentDisk: &api.GCEPersistentDiskVolumeSource{},
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},
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},
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},
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"ebs": {
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Spec: api.PersistentVolumeSpec{
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PersistentVolumeSource: api.PersistentVolumeSource{
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AWSElasticBlockStore: &api.AWSElasticBlockStoreVolumeSource{},
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},
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},
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},
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"nfs": {
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Spec: api.PersistentVolumeSpec{
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PersistentVolumeSource: api.PersistentVolumeSource{
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NFS: &api.NFSVolumeSource{},
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},
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},
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},
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"iscsi": {
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Spec: api.PersistentVolumeSpec{
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PersistentVolumeSource: api.PersistentVolumeSource{
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ISCSI: &api.ISCSIVolumeSource{},
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},
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},
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},
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"gluster": {
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Spec: api.PersistentVolumeSpec{
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PersistentVolumeSource: api.PersistentVolumeSource{
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Glusterfs: &api.GlusterfsVolumeSource{},
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},
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},
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},
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"rbd": {
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Spec: api.PersistentVolumeSpec{
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PersistentVolumeSource: api.PersistentVolumeSource{
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RBD: &api.RBDVolumeSource{},
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},
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},
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},
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}
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for name, pv := range tests {
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fake := testclient.NewSimpleFake(pv)
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c := PersistentVolumeDescriber{fake}
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str, err := c.Describe("foo", "bar", DescriberSettings{ShowEvents: true})
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if err != nil {
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t.Errorf("Unexpected error for test %s: %v", name, err)
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}
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if str == "" {
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t.Errorf("Unexpected empty string for test %s. Expected PV Describer output", name)
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}
|
|
}
|
|
}
|
|
|
|
func TestDescribeDeployment(t *testing.T) {
|
|
fake := fake.NewSimpleClientset(&extensions.Deployment{
|
|
ObjectMeta: api.ObjectMeta{
|
|
Name: "bar",
|
|
Namespace: "foo",
|
|
},
|
|
Spec: extensions.DeploymentSpec{
|
|
Template: api.PodTemplateSpec{},
|
|
},
|
|
})
|
|
d := DeploymentDescriber{fake}
|
|
out, err := d.Describe("foo", "bar", DescriberSettings{ShowEvents: true})
|
|
if err != nil {
|
|
t.Errorf("unexpected error: %v", err)
|
|
}
|
|
if !strings.Contains(out, "bar") || !strings.Contains(out, "foo") {
|
|
t.Errorf("unexpected out: %s", out)
|
|
}
|
|
}
|
|
|
|
func TestDescribeEvents(t *testing.T) {
|
|
|
|
events := &api.EventList{
|
|
Items: []api.Event{
|
|
{
|
|
Source: api.EventSource{Component: "kubelet"},
|
|
Message: "Item 1",
|
|
FirstTimestamp: unversioned.NewTime(time.Date(2014, time.January, 15, 0, 0, 0, 0, time.UTC)),
|
|
LastTimestamp: unversioned.NewTime(time.Date(2014, time.January, 15, 0, 0, 0, 0, time.UTC)),
|
|
Count: 1,
|
|
Type: api.EventTypeNormal,
|
|
},
|
|
},
|
|
}
|
|
|
|
m := map[string]Describer{
|
|
"DaemonSetDescriber": &DaemonSetDescriber{
|
|
testclient.NewSimpleFake(&extensions.DaemonSet{
|
|
ObjectMeta: api.ObjectMeta{
|
|
Name: "bar",
|
|
Namespace: "foo",
|
|
},
|
|
}, events),
|
|
},
|
|
"DeploymentDescriber": &DeploymentDescriber{
|
|
fake.NewSimpleClientset(&extensions.Deployment{
|
|
ObjectMeta: api.ObjectMeta{
|
|
Name: "bar",
|
|
Namespace: "foo",
|
|
},
|
|
}, events),
|
|
},
|
|
"EndpointsDescriber": &EndpointsDescriber{
|
|
testclient.NewSimpleFake(&api.Endpoints{
|
|
ObjectMeta: api.ObjectMeta{
|
|
Name: "bar",
|
|
Namespace: "foo",
|
|
},
|
|
}, events),
|
|
},
|
|
// TODO(jchaloup): add tests for:
|
|
// - HorizontalPodAutoscalerDescriber
|
|
// - IngressDescriber
|
|
// - JobDescriber
|
|
"NodeDescriber": &NodeDescriber{
|
|
testclient.NewSimpleFake(&api.Node{
|
|
ObjectMeta: api.ObjectMeta{
|
|
Name: "bar",
|
|
Namespace: "foo",
|
|
SelfLink: "url/url/url",
|
|
},
|
|
}, events),
|
|
},
|
|
"PodDescriber": &PodDescriber{
|
|
testclient.NewSimpleFake(&api.Pod{
|
|
ObjectMeta: api.ObjectMeta{
|
|
Name: "bar",
|
|
Namespace: "foo",
|
|
SelfLink: "url/url/url",
|
|
},
|
|
}, events),
|
|
},
|
|
"ReplicaSetDescriber": &ReplicaSetDescriber{
|
|
testclient.NewSimpleFake(&extensions.ReplicaSet{
|
|
ObjectMeta: api.ObjectMeta{
|
|
Name: "bar",
|
|
Namespace: "foo",
|
|
},
|
|
}, events),
|
|
},
|
|
"ReplicationControllerDescriber": &ReplicationControllerDescriber{
|
|
testclient.NewSimpleFake(&api.ReplicationController{
|
|
ObjectMeta: api.ObjectMeta{
|
|
Name: "bar",
|
|
Namespace: "foo",
|
|
},
|
|
}, events),
|
|
},
|
|
"Service": &ServiceDescriber{
|
|
testclient.NewSimpleFake(&api.Service{
|
|
ObjectMeta: api.ObjectMeta{
|
|
Name: "bar",
|
|
Namespace: "foo",
|
|
},
|
|
}, events),
|
|
},
|
|
}
|
|
|
|
for name, d := range m {
|
|
out, err := d.Describe("foo", "bar", DescriberSettings{ShowEvents: true})
|
|
if err != nil {
|
|
t.Errorf("unexpected error for %q: %v", name, err)
|
|
}
|
|
if !strings.Contains(out, "bar") {
|
|
t.Errorf("unexpected out for %q: %s", name, out)
|
|
}
|
|
if !strings.Contains(out, "Events:") {
|
|
t.Errorf("events not found for %q when ShowEvents=true: %s", name, out)
|
|
}
|
|
|
|
out, err = d.Describe("foo", "bar", DescriberSettings{ShowEvents: false})
|
|
if err != nil {
|
|
t.Errorf("unexpected error for %q: %s", name, err)
|
|
}
|
|
if !strings.Contains(out, "bar") {
|
|
t.Errorf("unexpected out for %q: %s", name, out)
|
|
}
|
|
if strings.Contains(out, "Events:") {
|
|
t.Errorf("events found for %q when ShowEvents=false: %s", name, out)
|
|
}
|
|
}
|
|
}
|