Add a fake cloud impl.

Update the service registry with unit tests.

pkg/cloudprovider/fake_cloud.go

@@ -0,0 +1,64 @@
+/*
+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 cloudprovider
+
+import (
+	"net"
+)
+
+type FakeCloud struct {
+	Exists bool
+	Err    error
+	Calls  []string
+	IP     net.IP
+}
+
+func (f *FakeCloud) addCall(desc string) {
+	f.Calls = append(f.Calls, desc)
+}
+
+func (f *FakeCloud) ClearCalls() {
+	f.Calls = []string{}
+}
+
+func (f *FakeCloud) TCPLoadBalancer() (TCPLoadBalancer, error) {
+	return f, nil
+}
+
+func (f *FakeCloud) TCPLoadBalancerExists(name, region string) (bool, error) {
+	return f.Exists, f.Err
+}
+
+func (f *FakeCloud) CreateTCPLoadBalancer(name, region string, port int, hosts []string) error {
+	f.addCall("create")
+	return f.Err
+}
+
+func (f *FakeCloud) UpdateTCPLoadBalancer(name, region string, hosts []string) error {
+	f.addCall("update")
+	return f.Err
+}
+
+func (f *FakeCloud) DeleteTCPLoadBalancer(name, region string) error {
+	f.addCall("delete")
+	return f.Err
+}
+
+func (f *FakeCloud) IPAddress(instance string) (net.IP, error) {
+	f.addCall("ip-address")
+	return f.IP, f.Err
+}

pkg/registry/service_registry.go

@@ -13,6 +13,7 @@ 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 registry
 
 import (

pkg/registry/service_registry_test.go

@@ -0,0 +1,144 @@
+/*
+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 registry
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
+	"github.com/GoogleCloudPlatform/kubernetes/pkg/cloudprovider"
+)
+
+func TestServiceRegistry(t *testing.T) {
+	memory := MakeMemoryRegistry()
+	fakeCloud := &cloudprovider.FakeCloud{}
+	machines := []string{"foo", "bar", "baz"}
+
+	storage := MakeServiceRegistryStorage(memory, fakeCloud, machines)
+
+	svc := api.Service{
+		JSONBase: api.JSONBase{ID: "foo"},
+	}
+	storage.Create(svc)
+
+	if len(fakeCloud.Calls) != 0 {
+		t.Errorf("Unexpected call(s): %#v", fakeCloud.Calls)
+	}
+	srv, err := memory.GetService(svc.ID)
+	expectNoError(t, err)
+	if srv == nil {
+		t.Errorf("Failed to find service: %s", svc.ID)
+	}
+}
+
+func TestServiceRegistryExternalService(t *testing.T) {
+	memory := MakeMemoryRegistry()
+	fakeCloud := &cloudprovider.FakeCloud{}
+	machines := []string{"foo", "bar", "baz"}
+
+	storage := MakeServiceRegistryStorage(memory, fakeCloud, machines)
+
+	svc := api.Service{
+		JSONBase:                   api.JSONBase{ID: "foo"},
+		CreateExternalLoadBalancer: true,
+	}
+	storage.Create(svc)
+
+	if len(fakeCloud.Calls) != 1 || fakeCloud.Calls[0] != "create" {
+		t.Errorf("Unexpected call(s): %#v", fakeCloud.Calls)
+	}
+	srv, err := memory.GetService(svc.ID)
+	expectNoError(t, err)
+	if srv == nil {
+		t.Errorf("Failed to find service: %s", svc.ID)
+	}
+}
+
+func TestServiceRegistryExternalServiceError(t *testing.T) {
+	memory := MakeMemoryRegistry()
+	fakeCloud := &cloudprovider.FakeCloud{
+		Err: fmt.Errorf("test error"),
+	}
+	machines := []string{"foo", "bar", "baz"}
+
+	storage := MakeServiceRegistryStorage(memory, fakeCloud, machines)
+
+	svc := api.Service{
+		JSONBase:                   api.JSONBase{ID: "foo"},
+		CreateExternalLoadBalancer: true,
+	}
+	storage.Create(svc)
+
+	if len(fakeCloud.Calls) != 1 || fakeCloud.Calls[0] != "create" {
+		t.Errorf("Unexpected call(s): %#v", fakeCloud.Calls)
+	}
+	srv, err := memory.GetService("foo")
+	expectNoError(t, err)
+	if srv != nil {
+		t.Errorf("Unexpected service: %#v", *srv)
+	}
+}
+
+func TestServiceRegistryDelete(t *testing.T) {
+	memory := MakeMemoryRegistry()
+	fakeCloud := &cloudprovider.FakeCloud{}
+	machines := []string{"foo", "bar", "baz"}
+
+	storage := MakeServiceRegistryStorage(memory, fakeCloud, machines)
+
+	svc := api.Service{
+		JSONBase: api.JSONBase{ID: "foo"},
+	}
+	memory.CreateService(svc)
+
+	storage.Delete(svc.ID)
+
+	if len(fakeCloud.Calls) != 0 {
+		t.Errorf("Unexpected call(s): %#v", fakeCloud.Calls)
+	}
+	srv, err := memory.GetService(svc.ID)
+	expectNoError(t, err)
+	if srv != nil {
+		t.Errorf("Unexpected service: %#v", *srv)
+	}
+}
+
+func TestServiceRegistryDeleteExternal(t *testing.T) {
+	memory := MakeMemoryRegistry()
+	fakeCloud := &cloudprovider.FakeCloud{}
+	machines := []string{"foo", "bar", "baz"}
+
+	storage := MakeServiceRegistryStorage(memory, fakeCloud, machines)
+
+	svc := api.Service{
+		JSONBase:                   api.JSONBase{ID: "foo"},
+		CreateExternalLoadBalancer: true,
+	}
+	memory.CreateService(svc)
+
+	storage.Delete(svc.ID)
+
+	if len(fakeCloud.Calls) != 1 || fakeCloud.Calls[0] != "delete" {
+		t.Errorf("Unexpected call(s): %#v", fakeCloud.Calls)
+	}
+	srv, err := memory.GetService(svc.ID)
+	expectNoError(t, err)
+	if srv != nil {
+		t.Errorf("Unexpected service: %#v", *srv)
+	}
+}