Andreas Hocevar
85 lines
2.7 KiB
JavaScript
85 lines
2.7 KiB
JavaScript
// Copyright 2012 The Closure Library Authors. All Rights Reserved.
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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goog.provide('goog.testing.events.OnlineHandlerTest');
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goog.setTestOnly('goog.testing.events.OnlineHandlerTest');
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goog.require('goog.events');
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goog.require('goog.net.NetworkStatusMonitor');
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goog.require('goog.testing.events.EventObserver');
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goog.require('goog.testing.events.OnlineHandler');
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goog.require('goog.testing.jsunit');
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var handler;
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var observer;
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function tearDown() {
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handler = null;
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observer = null;
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}
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function testInitialValue() {
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createHandler(true);
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assertEquals(true, handler.isOnline());
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createHandler(false);
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assertEquals(false, handler.isOnline());
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}
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function testStateChange() {
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createHandler(true);
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assertEventCounts(0 /* expectedOnlineEvents */,
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0 /* expectedOfflineEvents */);
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// Expect no events.
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handler.setOnline(true);
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assertEquals(true, handler.isOnline());
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assertEventCounts(0 /* expectedOnlineEvents */,
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0 /* expectedOfflineEvents */);
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// Expect one offline event.
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handler.setOnline(false);
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assertEquals(false, handler.isOnline());
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assertEventCounts(0 /* expectedOnlineEvents */,
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1 /* expectedOfflineEvents */);
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// Expect no events.
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handler.setOnline(false);
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assertEquals(false, handler.isOnline());
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assertEventCounts(0 /* expectedOnlineEvents */,
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1 /* expectedOfflineEvents */);
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// Expect one online event.
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handler.setOnline(true);
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assertEquals(true, handler.isOnline());
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assertEventCounts(1 /* expectedOnlineEvents */,
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1 /* expectedOfflineEvents */);
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}
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function createHandler(initialValue) {
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handler = new goog.testing.events.OnlineHandler(initialValue);
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observer = new goog.testing.events.EventObserver();
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goog.events.listen(handler,
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[goog.net.NetworkStatusMonitor.EventType.ONLINE,
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goog.net.NetworkStatusMonitor.EventType.OFFLINE],
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observer);
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}
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function assertEventCounts(expectedOnlineEvents, expectedOfflineEvents) {
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assertEquals(expectedOnlineEvents, observer.getEvents(
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goog.net.NetworkStatusMonitor.EventType.ONLINE).length);
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assertEquals(expectedOfflineEvents, observer.getEvents(
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goog.net.NetworkStatusMonitor.EventType.OFFLINE).length);
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}
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