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<!DOCTYPE html>
<html>
<!--
Copyright 2012 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>
<title>Closure Unit Tests - goog.result.DeferredAdaptor</title>
<script src="../base.js"></script>
<script>
goog.require('goog.result');
goog.require('goog.result.DeferredAdaptor');
goog.require('goog.result.SimpleResult');
goog.require('goog.testing.jsunit');
goog.require('goog.testing.recordFunction');
</script>
</head>
<body>
<script>
var result, deferred, record;
function setUp() {
result = new goog.result.SimpleResult();
deferred = new goog.result.DeferredAdaptor(result);
record = new goog.testing.recordFunction();
}
function tearDown() {
result = deferred = record = null;
}
function testResultSuccesfulResolution() {
deferred.addCallback(record);
result.setValue(1);
assertEquals(1, record.getCallCount());
var call = record.popLastCall();
assertEquals(1, call.getArgument(0));
}
function testResultErrorResolution() {
deferred.addErrback(record);
result.setError(2);
assertEquals(1, record.getCallCount());
var call = record.popLastCall();
assertEquals(2, call.getArgument(0));
}
function testResultCancelResolution() {
deferred.addCallback(record);
var cancelCallback = new goog.testing.recordFunction();
deferred.addErrback(cancelCallback);
result.cancel();
assertEquals(0, record.getCallCount());
assertEquals(1, cancelCallback.getCallCount());
var call = cancelCallback.popLastCall();
assertTrue(call.getArgument(0) instanceof
goog.async.Deferred.CancelledError);
}
function testAddCallbackOnResolvedResult() {
result.setValue(1);
assertEquals(1, result.getValue());
deferred.addCallback(record);
// callback should be called immediately when result is already resolved.
assertEquals(1, record.getCallCount());
assertEquals(1, record.popLastCall().getArgument(0));
}
function testAddErrbackOnErroredResult() {
result.setError(1);
assertEquals(1, result.getError());
// errback should be called immediately when result already errored.
deferred.addErrback(record);
assertEquals(1, record.getCallCount());
assertEquals(1, record.popLastCall().getArgument(0));
}
</script>
</body>
</html>
|
