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-<!DOCTYPE html>
-<html>
-<!--
-Copyright 2007 The Closure Library Authors. All Rights Reserved.
-
-Use of this source code is governed by the Apache License, Version 2.0.
-See the COPYING file for details.
--->
-<!--
--->
-<head>
-<meta http-equiv="X-UA-Compatible" content="IE=edge">
-<title>Closure Unit Tests - goog.net.Jsonp</title>
-<script src="../base.js"></script>
-<script>
- goog.require('goog.dom');
- goog.require('goog.net.Jsonp');
- goog.require('goog.testing.jsunit');
- goog.require('goog.userAgent');
- goog.require('goog.testing.recordFunction');
- goog.require('goog.testing.PropertyReplacer');
-</script>
-</head>
-<body>
-<script>
-// Global vars to facilitate a shared set up function.
-
-var timeoutWasCalled;
-var timeoutHandler;
-
-var fakeUrl = 'http://fake-site.eek/';
-
-var originalTimeout;
-function setUp() {
- timeoutWasCalled = false;
- timeoutHandler = null;
- originalTimeout = window.setTimeout;
- window.setTimeout = function(handler, time) {
- timeoutWasCalled = true;
- timeoutHandler = handler;
- };
-}
-
-// Firefox throws a JS error when a script is not found. We catch that here and
-// ensure the test case doesn't fail because of it.
-var originalOnError = window.onerror;
-window.onerror = function(msg, url, line) {
- // TODO(user): Safari 3 on the farm returns an object instead of the typcial
- // params. Pass through errors for safari for now.
- if (goog.userAgent.WEBKIT ||
- msg == 'Error loading script' && url.indexOf('fake-site') != -1) {
- return true;
- } else {
- return originalOnError && originalOnError(msg, url, line);
- }
-};
-
-function tearDown() {
- window.setTimeout = originalTimeout;
-}
-
-// Quick function records the before-state of the DOM, and then return a
-// a function to check that XDC isn't leaving stuff behind.
-function newCleanupGuard() {
- var bodyChildCount = document.body.childNodes.length;
-
- return function() {
- // let any timeout queues finish before we check these:
- window.setTimeout(function() {
- var propCounter = 0;
-
- // All callbacks should have been deleted or be the null function.
- for (var id in goog.global[goog.net.Jsonp.CALLBACKS]) {
- if (goog.global[goog.net.Jsonp.CALLBACKS][id] != goog.nullFunction) {
- propCounter++;
- }
- }
-
- assertEquals(
- 'script cleanup', bodyChildCount, document.body.childNodes.length);
- assertEquals('window jsonp array empty', 0, propCounter);
- }, 0);
- }
-}
-
-function getScriptElement(result) {
- return result.deferred_.defaultScope_.script_;
-}
-
-
-// Check that send function is sane when things go well.
-function testSend() {
- var replyReceived;
- var jsonp = new goog.net.Jsonp(fakeUrl);
-
- var checkCleanup = newCleanupGuard();
-
- var userCallback = function(data) {
- replyReceived = data;
- }
-
- var payload = {atisket: 'atasket', basket: 'yellow'};
- var result = jsonp.send(payload, userCallback);
-
- var script = getScriptElement(result);
-
- assertNotNull('script created', script);
- assertEquals('encoding is utf-8', 'UTF-8', script.charset);
-
- // Check that the URL matches our payload.
- assertTrue('payload in url', script.src.indexOf('basket=yellow') > -1);
- assertTrue('server url', script.src.indexOf(fakeUrl) == 0);
-
- // Now, we have to track down the name of the callback function, so we can
- // call that to simulate a returned request + verify that the callback
- // function does not break if it receives a second unexpected parameter.
- var callbackName = /callback=([^&]+)/.exec(script.src)[1];
- var callbackFunc = eval(callbackName);
- callbackFunc({some: 'data', another: ['data', 'right', 'here']},
- 'unexpected');
- assertEquals('input was received', 'right', replyReceived.another[1]);
-
- // Because the callbackFunc calls cleanUp_ and that calls setTimeout which
- // we have overwritten, we have to call the timeoutHandler to actually do
- // the cleaning.
- timeoutHandler();
-
- checkCleanup();
- timeoutHandler();
-}
-
-
-// Check that send function is sane when things go well.
-function testSendWhenCallbackHasTwoParameters() {
- var replyReceived, replyReceived2;
- var jsonp = new goog.net.Jsonp(fakeUrl);
-
- var checkCleanup = newCleanupGuard();
-
- var userCallback = function(data, opt_data2) {
- replyReceived = data;
- replyReceived2 = opt_data2;
- }
-
- var payload = {atisket: 'atasket', basket: 'yellow'};
- var result = jsonp.send(payload, userCallback);
- var script = getScriptElement(result);
-
- // Test a callback function that receives two parameters.
- var callbackName = /callback=([^&]+)/.exec(script.src)[1];
- var callbackFunc = eval(callbackName);
- callbackFunc('param1', {some: 'data', another: ['data', 'right', 'here']});
- assertEquals('input was received', 'param1', replyReceived);
- assertEquals('second input was received', 'right',
- replyReceived2.another[1]);
-
- // Because the callbackFunc calls cleanUp_ and that calls setTimeout which
- // we have overwritten, we have to call the timeoutHandler to actually do
- // the cleaning.
- timeoutHandler();
-
- checkCleanup();
- timeoutHandler();
-}
-
-// Check that send function works correctly when callback param value is
-// specified.
-function testSendWithCallbackParamValue() {
- var replyReceived;
- var jsonp = new goog.net.Jsonp(fakeUrl);
-
- var checkCleanup = newCleanupGuard();
-
- var userCallback = function(data) {
- replyReceived = data;
- }
-
- var payload = {atisket: 'atasket', basket: 'yellow'};
- var result = jsonp.send(payload, userCallback, undefined, 'dummyId');
-
- var script = getScriptElement(result);
-
- assertNotNull('script created', script);
- assertEquals('encoding is utf-8', 'UTF-8', script.charset);
-
- // Check that the URL matches our payload.
- assertTrue('payload in url', script.src.indexOf('basket=yellow') > -1);
- assertTrue('dummyId in url',
- script.src.indexOf('callback=_callbacks_.dummyId') > -1);
- assertTrue('server url', script.src.indexOf(fakeUrl) == 0);
-
- // Now, we simulate a returned request using the known callback function
- // name.
- var callbackFunc = _callbacks_.dummyId;
- callbackFunc({some: 'data', another: ['data', 'right', 'here']});
- assertEquals('input was received', 'right', replyReceived.another[1]);
-
- // Because the callbackFunc calls cleanUp_ and that calls setTimeout which
- // we have overwritten, we have to call the timeoutHandler to actually do
- // the cleaning.
- timeoutHandler();
-
- checkCleanup();
- timeoutHandler();
-}
-
-
-// Check that the send function is sane when the thing goes south.
-function testSendFailure() {
- var replyReceived = false;
- var errorReplyReceived = false;
-
- var jsonp = new goog.net.Jsonp(fakeUrl);
-
- var checkCleanup = newCleanupGuard();
-
- var userCallback = function(data) {
- replyReceived = data;
- }
- var userErrorCallback = function(data) {
- errorReplyReceived = data;
- }
-
- var payload = { justa: 'test' };
-
- jsonp.send(payload, userCallback, userErrorCallback);
-
- assertTrue('timeout called', timeoutWasCalled);
-
- // Now, simulate the time running out, so we go into error mode.
- // After jsonp.send(), the timeoutHandler now is the Jsonp.cleanUp_ function.
- timeoutHandler();
- // But that function also calls a setTimeout(), so it changes the timeout
- // handler once again, so to actually clean up we have to call the
- // timeoutHandler() once again. Fun!
- timeoutHandler();
-
- assertFalse('standard callback not called', replyReceived);
-
- // The user's error handler should be called back with the same payload
- // passed back to it.
- assertEquals('error handler called', 'test', errorReplyReceived.justa);
-
- // Check that the relevant cleanup has occurred.
- checkCleanup();
- // Check cleanup just calls setTimeout so we have to call the handler to
- // actually check that the cleanup worked.
- timeoutHandler();
-}
-
-
-// Check that a cancel call works and cleans up after itself.
-function testCancel() {
- var checkCleanup = newCleanupGuard();
-
- var successCalled = false;
- var successCallback = function() {
- successCalled = true;
- };
-
- // Send and cancel a request, then make sure it was cleaned up.
- var jsonp = new goog.net.Jsonp(fakeUrl);
- var requestObject = jsonp.send({test: 'foo'}, successCallback);
- jsonp.cancel(requestObject);
-
- for (var key in goog.global[goog.net.Jsonp.CALLBACKS]) {
- assertNotEquals('The success callback should have been removed',
- goog.global[goog.net.Jsonp.CALLBACKS][key],
- successCallback);
- }
-
- // Make sure cancelling removes the script tag
- checkCleanup();
- timeoutHandler();
-}
-
-function testPayloadParameters() {
- var checkCleanup = newCleanupGuard();
-
- var jsonp = new goog.net.Jsonp(fakeUrl);
- var result = jsonp.send({
- 'foo': 3,
- 'bar': 'baz'
- });
-
- var script = getScriptElement(result);
- assertEquals('Payload parameters should have been added to url.',
- fakeUrl + '?foo=3&bar=baz',
- script.src);
-
- checkCleanup();
- timeoutHandler();
-}
-
-function testOptionalPayload() {
- var checkCleanup = newCleanupGuard();
-
- var errorCallback = goog.testing.recordFunction();
-
- var stubs = new goog.testing.PropertyReplacer();
- stubs.set(goog.global, 'setTimeout', function(errorHandler) {
- errorHandler();
- });
-
- var jsonp = new goog.net.Jsonp(fakeUrl);
- var result = jsonp.send(null, null, errorCallback);
-
- var script = getScriptElement(result);
- assertEquals('Parameters should not have been added to url.',
- fakeUrl, script.src);
-
- // Clear the script hooks because we triggered the error manually.
- script.onload = goog.nullFunction;
- script.onerror = goog.nullFunction;
- script.onreadystatechange = goog.nullFunction;
-
- var errorCallbackArguments = errorCallback.getLastCall().getArguments();
- assertEquals(1, errorCallbackArguments.length);
- assertNull(errorCallbackArguments[0]);
-
- checkCleanup();
- stubs.reset();
-}
-
-</script>
-</body>
-</html>