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<!DOCTYPE html>
<html>
<!--
Copyright 2010 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.testing.recordFunction</title>
<script src="../base.js"></script>
<script>
goog.require('goog.functions');
goog.require('goog.testing.PropertyReplacer');
goog.require('goog.testing.jsunit');
goog.require('goog.testing.recordConstructor');
goog.require('goog.testing.recordFunction');
</script>
</head>
<body>
<script>
var stubs = new goog.testing.PropertyReplacer();
function tearDown() {
stubs.reset();
}
function testNoCalls() {
var f = goog.testing.recordFunction(goog.functions.identity);
assertEquals('call count', 0, f.getCallCount());
assertNull('last call', f.getLastCall());
assertArrayEquals('all calls', [], f.getCalls());
}
function testWithoutArguments() {
var f = goog.testing.recordFunction();
assertUndefined('f(1)', f(1));
assertEquals('call count', 1, f.getCallCount());
var lastCall = f.getLastCall();
assertEquals('original function', goog.nullFunction, lastCall.getFunction());
assertEquals('this context', window, lastCall.getThis());
assertArrayEquals('arguments', [1], lastCall.getArguments());
assertEquals('arguments[0]', 1, lastCall.getArgument(0));
assertUndefined('arguments[1]', lastCall.getArgument(1));
assertUndefined('return value', lastCall.getReturnValue());
}
function testWithIdentityFunction() {
var f = goog.testing.recordFunction(goog.functions.identity);
var dummyThis = {};
assertEquals('f(1)', 1, f(1));
assertEquals('f.call(dummyThis, 2)', 2, f.call(dummyThis, 2));
var calls = f.getCalls();
var firstCall = calls[0];
var lastCall = f.getLastCall();
assertEquals('call count', 2, f.getCallCount());
assertEquals('last call', calls[1], lastCall);
assertEquals('original function', goog.functions.identity,
lastCall.getFunction());
assertEquals('this context of first call', window, firstCall.getThis());
assertEquals('this context of last call', dummyThis, lastCall.getThis());
assertArrayEquals('arguments of the first call', [1],
firstCall.getArguments());
assertArrayEquals('arguments of the last call', [2], lastCall.getArguments());
assertEquals('return value of the first call', 1, firstCall.getReturnValue());
assertEquals('return value of the last call', 2, lastCall.getReturnValue());
assertNull('error thrown by the first call', firstCall.getError());
assertNull('error thrown by the last call', lastCall.getError());
}
function testWithErrorFunction() {
var f = goog.testing.recordFunction(goog.functions.error('error'));
var error = assertThrows('f(1) should throw an error', function() {
f(1);
});
assertEquals('error message', 'error', error.message);
assertEquals('call count', 1, f.getCallCount());
var lastCall = f.getLastCall();
assertEquals('this context', window, lastCall.getThis());
assertArrayEquals('arguments', [1], lastCall.getArguments());
assertUndefined('return value', lastCall.getReturnValue());
assertEquals('recorded error message', 'error', lastCall.getError().message);
}
function testWithClass() {
var ns = {};
/** @constructor */
ns.TestClass = function(num) {
this.setX(ns.TestClass.identity(1) + num);
}
ns.TestClass.prototype.setX = function(x) {
this.x = x;
};
ns.TestClass.identity = function(x) {
return x;
};
var originalNsTestClass = ns.TestClass;
stubs.set(ns, 'TestClass', goog.testing.recordConstructor(ns.TestClass));
stubs.set(ns.TestClass.prototype, 'setX',
goog.testing.recordFunction(ns.TestClass.prototype.setX));
stubs.set(ns.TestClass, 'identity',
goog.testing.recordFunction(ns.TestClass.identity));
var obj = new ns.TestClass(2);
assertEquals('constructor is called once', 1, ns.TestClass.getCallCount());
var lastConstructorCall = ns.TestClass.getLastCall();
assertArrayEquals('... with argument 2', [2],
lastConstructorCall.getArguments());
assertEquals('the created object', obj, lastConstructorCall.getThis());
assertEquals('type of the created object', originalNsTestClass,
obj.constructor);
assertEquals('setX is called once', 1, obj.setX.getCallCount());
assertArrayEquals('... with argument 3', [3],
obj.setX.getLastCall().getArguments());
assertEquals('The x field is properly set', 3, obj.x);
assertEquals('identity is called once', 1,
ns.TestClass.identity.getCallCount());
assertArrayEquals('... with argument 1', [1],
ns.TestClass.identity.getLastCall().getArguments());
}
function testPopLastCall() {
var f = goog.testing.recordFunction();
f(0);
f(1);
var firstCall = f.getCalls()[0];
var lastCall = f.getCalls()[1];
assertEquals('return value of popLastCall', lastCall, f.popLastCall());
assertArrayEquals('1 call remains', [firstCall], f.getCalls());
assertEquals('next return value of popLastCall', firstCall, f.popLastCall());
assertArrayEquals('0 calls remain', [], f.getCalls());
assertNull('no more calls to pop', f.popLastCall());
}
function testReset() {
var f = goog.testing.recordFunction();
f(0);
f(1);
assertEquals('Should be two calls.', 2, f.getCallCount());
f.reset();
assertEquals('Call count should reset.', 0, f.getCallCount());
}
</script>
</body>
</html>
|
