Add a kubectl stop command

pkg/kubectl/stop_test.go

@@ -0,0 +1,168 @@
+/*
+Copyright 2014 Google Inc. All rights reserved.
+
+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 kubectl
+
+import (
+	"fmt"
+	"testing"
+	"time"
+
+	"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
+	"github.com/GoogleCloudPlatform/kubernetes/pkg/client"
+)
+
+func TestReplicationControllerStop(t *testing.T) {
+	fake := &client.Fake{
+		Ctrl: api.ReplicationController{
+			Spec: api.ReplicationControllerSpec{
+				Replicas: 0,
+			},
+		},
+	}
+	reaper := ReplicationControllerReaper{fake, time.Millisecond, time.Millisecond}
+	name := "foo"
+	s, err := reaper.Stop("default", name)
+	if err != nil {
+		t.Errorf("unexpected error: %v", err)
+	}
+	expected := "foo stopped"
+	if s != expected {
+		t.Errorf("expected %s, got %s", expected, s)
+	}
+	if len(fake.Actions) != 4 {
+		t.Errorf("unexpected actions: %v, expected 4 actions (get, update, get, delete)", fake.Actions)
+	}
+	for i, action := range []string{"get", "update", "get", "delete"} {
+		if fake.Actions[i].Action != action+"-controller" {
+			t.Errorf("unexpected action: %v, expected %s-controller", fake.Actions[i], action)
+		}
+	}
+}
+
+type noSuchPod struct {
+	*client.FakePods
+}
+
+func (c *noSuchPod) Get(name string) (*api.Pod, error) {
+	return nil, fmt.Errorf("%s does not exist", name)
+}
+
+type noDeleteService struct {
+	*client.FakeServices
+}
+
+func (c *noDeleteService) Delete(service string) error {
+	return fmt.Errorf("I'm afraid I can't do that, Dave")
+}
+
+type reaperFake struct {
+	*client.Fake
+	noSuchPod, noDeleteService bool
+}
+
+func (c *reaperFake) Pods(namespace string) client.PodInterface {
+	pods := &client.FakePods{c.Fake, namespace}
+	if c.noSuchPod {
+		return &noSuchPod{pods}
+	}
+	return pods
+}
+
+func (c *reaperFake) Services(namespace string) client.ServiceInterface {
+	services := &client.FakeServices{c.Fake, namespace}
+	if c.noDeleteService {
+		return &noDeleteService{services}
+	}
+	return services
+}
+
+func TestSimpleStop(t *testing.T) {
+	tests := []struct {
+		fake        *reaperFake
+		kind        string
+		actions     []string
+		expectError bool
+		test        string
+	}{
+		{
+			fake: &reaperFake{
+				Fake: &client.Fake{},
+			},
+			kind:        "Pod",
+			actions:     []string{"get-pod", "delete-pod"},
+			expectError: false,
+			test:        "stop pod succeeds",
+		},
+		{
+			fake: &reaperFake{
+				Fake: &client.Fake{},
+			},
+			kind:        "Service",
+			actions:     []string{"get-service", "delete-service"},
+			expectError: false,
+			test:        "stop service succeeds",
+		},
+		{
+			fake: &reaperFake{
+				Fake:      &client.Fake{},
+				noSuchPod: true,
+			},
+			kind:        "Pod",
+			actions:     []string{},
+			expectError: true,
+			test:        "stop pod fails, no pod",
+		},
+		{
+			fake: &reaperFake{
+				Fake:            &client.Fake{},
+				noDeleteService: true,
+			},
+			kind:        "Service",
+			actions:     []string{"get-service"},
+			expectError: true,
+			test:        "stop service fails, can't delete",
+		},
+	}
+	for _, test := range tests {
+		fake := test.fake
+		reaper, err := ReaperFor(test.kind, fake)
+		if err != nil {
+			t.Errorf("unexpected error: %v (%s)", err, test.test)
+		}
+		s, err := reaper.Stop("default", "foo")
+		if err != nil && !test.expectError {
+			t.Errorf("unexpected error: %v (%s)", err, test.test)
+		}
+		if err == nil {
+			if test.expectError {
+				t.Errorf("unexpected non-error: %v (%s)", err, test.test)
+			}
+			if s != "foo stopped" {
+				t.Errorf("unexpected return: %s (%s)", s, test.test)
+			}
+		}
+		if len(test.actions) != len(fake.Actions) {
+			t.Errorf("unexpected actions: %v; expected %v (%s)", fake.Actions, test.actions, test.test)
+		}
+		for i, action := range fake.Actions {
+			testAction := test.actions[i]
+			if action.Action != testAction {
+				t.Errorf("unexpected action: %v; expected %v (%s)", action, testAction, test.test)
+			}
+		}
+	}
+}