Split watch

pkg/apiserver/watch_test.go

@@ -0,0 +1,142 @@
+/*
+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 apiserver
+
+import (
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"reflect"
+	"testing"
+
+	"code.google.com/p/go.net/websocket"
+	"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
+	"github.com/GoogleCloudPlatform/kubernetes/pkg/watch"
+)
+
+var watchTestTable = []struct {
+	t   watch.EventType
+	obj interface{}
+}{
+	{watch.Added, &Simple{Name: "A Name"}},
+	{watch.Modified, &Simple{Name: "Another Name"}},
+	{watch.Deleted, &Simple{Name: "Another Name"}},
+}
+
+func TestWatchWebsocket(t *testing.T) {
+	simpleStorage := &SimpleRESTStorage{}
+	handler := New(map[string]RESTStorage{
+		"foo": simpleStorage,
+	}, "/prefix/version")
+	server := httptest.NewServer(handler)
+
+	dest, _ := url.Parse(server.URL)
+	dest.Scheme = "ws" // Required by websocket, though the server never sees it.
+	dest.Path = "/prefix/version/watch/foo"
+	dest.RawQuery = "id=myID"
+
+	ws, err := websocket.Dial(dest.String(), "", "http://localhost")
+	expectNoError(t, err)
+
+	if a, e := simpleStorage.requestedID, "myID"; a != e {
+		t.Fatalf("Expected %v, got %v", e, a)
+	}
+
+	try := func(action watch.EventType, object interface{}) {
+		// Send
+		simpleStorage.fakeWatch.Action(action, object)
+		// Test receive
+		var got api.WatchEvent
+		err := websocket.JSON.Receive(ws, &got)
+		if err != nil {
+			t.Fatalf("Unexpected error: %v", err)
+		}
+		if got.Type != action {
+			t.Errorf("Unexpected type: %v", got.Type)
+		}
+		if e, a := object, got.Object.Object; !reflect.DeepEqual(e, a) {
+			t.Errorf("Expected %v, got %v", e, a)
+		}
+	}
+
+	for _, item := range watchTestTable {
+		try(item.t, item.obj)
+	}
+	simpleStorage.fakeWatch.Stop()
+
+	var got api.WatchEvent
+	err = websocket.JSON.Receive(ws, &got)
+	if err == nil {
+		t.Errorf("Unexpected non-error")
+	}
+}
+
+func TestWatchHTTP(t *testing.T) {
+	simpleStorage := &SimpleRESTStorage{}
+	handler := New(map[string]RESTStorage{
+		"foo": simpleStorage,
+	}, "/prefix/version")
+	server := httptest.NewServer(handler)
+	client := http.Client{}
+
+	dest, _ := url.Parse(server.URL)
+	dest.Path = "/prefix/version/watch/foo"
+	dest.RawQuery = "id=myID"
+
+	request, err := http.NewRequest("GET", dest.String(), nil)
+	expectNoError(t, err)
+	response, err := client.Do(request)
+	expectNoError(t, err)
+	if response.StatusCode != http.StatusOK {
+		t.Errorf("Unexpected response %#v", response)
+	}
+
+	if a, e := simpleStorage.requestedID, "myID"; a != e {
+		t.Fatalf("Expected %v, got %v", e, a)
+	}
+
+	decoder := json.NewDecoder(response.Body)
+
+	try := func(action watch.EventType, object interface{}) {
+		// Send
+		simpleStorage.fakeWatch.Action(action, object)
+		// Test receive
+		var got api.WatchEvent
+		err := decoder.Decode(&got)
+		if err != nil {
+			t.Fatalf("Unexpected error: %v", err)
+		}
+		if got.Type != action {
+			t.Errorf("Unexpected type: %v", got.Type)
+		}
+		if e, a := object, got.Object.Object; !reflect.DeepEqual(e, a) {
+			t.Errorf("Expected %v, got %v", e, a)
+		}
+	}
+
+	for _, item := range watchTestTable {
+		try(item.t, item.obj)
+	}
+	simpleStorage.fakeWatch.Stop()
+
+	var got api.WatchEvent
+	err = decoder.Decode(&got)
+	if err == nil {
+		t.Errorf("Unexpected non-error")
+	}
+}