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<!DOCTYPE html>
<html>
<!--
Copyright 2008 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.Mock</title>
<script src="../base.js"></script>
<script>
goog.require('goog.array');
goog.require('goog.object');
goog.require('goog.testing.Mock');
goog.require('goog.testing.MockControl');
goog.require('goog.testing.MockExpectation');
goog.require('goog.testing.jsunit');
</script>
</head>
<body>
<script>
// The object that we will be mocking
var RealObject = function() {
};
RealObject.prototype.a = function() {
fail('real object should never be called');
};
RealObject.prototype.b = function() {
fail('real object should never be called');
};
var matchers = goog.testing.mockmatchers;
var mock;
function setUp() {
var obj = new RealObject();
mock = new goog.testing.Mock(obj);
}
function testMockErrorMessage() {
var expectation = new goog.testing.MockExpectation('a');
assertEquals(0, expectation.getErrorMessageCount());
assertEquals('', expectation.getErrorMessage());
expectation.addErrorMessage('foo failed');
assertEquals(1, expectation.getErrorMessageCount());
assertEquals('foo failed', expectation.getErrorMessage());
expectation.addErrorMessage('bar failed');
assertEquals(2, expectation.getErrorMessageCount());
assertEquals('foo failed\nbar failed', expectation.getErrorMessage());
}
function testVerifyArgumentList() {
var expectation = new goog.testing.MockExpectation('a');
assertEquals('', expectation.getErrorMessage());
// test single string arg
expectation.argumentList = ['foo'];
assertTrue(mock.$verifyCall(expectation, 'a', ['foo']));
// single numeric arg
expectation.argumentList = [2]
assertTrue(mock.$verifyCall(expectation, 'a', [2]));
// single object arg (using standard === comparison)
var obj = {prop1: 'prop1', prop2: 2};
expectation.argumentList = [obj];
assertTrue(mock.$verifyCall(expectation, 'a', [obj]));
// make sure comparison succeeds if args are similar, but not ===
var obj2 = {prop1: 'prop1', prop2: 2};
expectation.argumentList = [obj];
assertTrue(mock.$verifyCall(expectation, 'a', [obj2]));
assertEquals('', expectation.getErrorMessage());
// multiple args
expectation.argumentList = ['foo', 2, obj, obj2];
assertTrue(mock.$verifyCall(expectation, 'a', ['foo', 2, obj, obj2]));
// test flexible arg matching.
expectation.argumentList = ['foo', matchers.isNumber];
assertTrue(mock.$verifyCall(expectation, 'a', ['foo', 1]));
expectation.argumentList = [new matchers.InstanceOf(RealObject)];
assertTrue(mock.$verifyCall(expectation, 'a', [new RealObject()]));
}
function testVerifyArgumentListForObjectMethods() {
var expectation = new goog.testing.MockExpectation('toString');
expectation.argumentList = []
assertTrue(mock.$verifyCall(expectation, 'toString', []));
}
function testRegisterArgumentListVerifier() {
var expectationA = new goog.testing.MockExpectation('a');
var expectationB = new goog.testing.MockExpectation('b');
// Simple matcher that return true if all args are === equivalent.
mock.$registerArgumentListVerifier('a', function(expectedArgs, args) {
return goog.array.equals(expectedArgs, args, function(a, b) {
return (a === b);
});
});
// test single string arg
expectationA.argumentList = ['foo'];
assertTrue(mock.$verifyCall(expectationA, 'a', ['foo']));
// single numeric arg
expectationA.argumentList = [2]
assertTrue(mock.$verifyCall(expectationA, 'a', [2]));
// single object arg (using standard === comparison)
var obj = {prop1: 'prop1', prop2: 2};
expectationA.argumentList = [obj];
expectationB.argumentList = [obj];
assertTrue(mock.$verifyCall(expectationA, 'a', [obj]));
assertTrue(mock.$verifyCall(expectationB, 'b', [obj]));
// if args are similar, but not ===, then comparison should succeed
// for method with registered object matcher, and fail for method without
var obj2 = {prop1: 'prop1', prop2: 2};
expectationA.argumentList = [obj];
expectationB.argumentList = [obj];
assertFalse(mock.$verifyCall(expectationA, 'a', [obj2]))
assertTrue(mock.$verifyCall(expectationB, 'b', [obj2]));
// multiple args, should fail for method with registered arg matcher,
// and succeed for method without.
expectationA.argumentList = ['foo', 2, obj, obj2];
expectationB.argumentList = ['foo', 2, obj, obj2];
assertFalse(mock.$verifyCall(expectationA, 'a', ['foo', 2, obj2, obj]));
assertTrue(mock.$verifyCall(expectationB, 'b', ['foo', 2, obj2, obj]));
}
function testCreateProxy() {
mock = new goog.testing.Mock(RealObject, false, true);
assertTrue(mock.$proxy instanceof RealObject);
assertThrows(function() {
new goog.testing.Mock(RealObject, true, true);
});
assertThrows(function() {
new goog.testing.Mock(1, false, true);
});
}
function testValidConstructorArgument() {
var someNamespace = { };
assertThrows(function() {
new goog.testing.Mock(someNamespace.RealObjectWithTypo);
});
}
function testArgumentsAsString() {
assertEquals('()', mock.$argumentsAsString([]));
assertEquals('(string, number, object, null)',
mock.$argumentsAsString(['red', 1, {}, null]));
}
function testThrowCallExceptionBadArgs() {
var msg;
mock.$throwException = function(m) {
msg = m;
};
mock.$throwCallException(
'fn1', [ 'b' ],
{ name: 'fn1',
argumentList: [ 'c' ],
getErrorMessage: function() { return ''; } });
assertContains(
'Bad arguments to fn1().\nActual: (string)\nExpected: (string)', msg);
}
function testThrowCallExceptionUnexpected() {
var msg;
mock.$throwException = function(m) {
msg = m;
};
mock.$throwCallException('fn1', [ 'b' ]);
assertEquals('Unexpected call to fn1(string).', msg);
}
function testThrowCallExceptionUnexpectedWithNext() {
var msg;
mock.$throwException = function(m) {
msg = m;
};
mock.$throwCallException(
'fn1', [ 'b' ],
{ name: 'fn2',
argumentList: [ 3 ],
getErrorMessage: function() { return ''; } });
assertEquals(
'Unexpected call to fn1(string).\n' +
'Next expected call was to fn2(number)', msg);
}
// This tests that base Object functions which are not enumerable in IE can
// be mocked correctly.
function testBindNonEnumerableFunctions() {
// Create Foo and override non enumerable functions.
var Foo = function() {};
Foo.prototype.constructor = function() {
fail('real object should never be called');
};
Foo.prototype.hasOwnProperty = function() {
fail('real object should never be called');
};
Foo.prototype.isPrototypeOf = function() {
fail('real object should never be called');
};
Foo.prototype.propertyIsEnumerable = function() {
fail('real object should never be called');
};
Foo.prototype.toLocaleString = function() {
fail('real object should never be called');
};
Foo.prototype.toString = function() {
fail('real object should never be called');
};
Foo.prototype.valueOf = function() {
fail('real object should never be called');
};
// Create Mock and set $returns for toString.
var mockControl = new goog.testing.MockControl();
var mock = mockControl.createLooseMock(Foo);
mock.constructor().$returns('constructor');
mock.hasOwnProperty().$returns('hasOwnProperty');
mock.isPrototypeOf().$returns('isPrototypeOf');
mock.propertyIsEnumerable().$returns('propertyIsEnumerable');
mock.toLocaleString().$returns('toLocaleString');
mock.toString().$returns('toString');
mock.valueOf().$returns('valueOf');
// Execute and assert that the Mock is working correctly.
mockControl.$replayAll();
assertEquals('constructor', mock.constructor());
assertEquals('hasOwnProperty', mock.hasOwnProperty());
assertEquals('isPrototypeOf', mock.isPrototypeOf());
assertEquals('propertyIsEnumerable', mock.propertyIsEnumerable());
assertEquals('toLocaleString', mock.toLocaleString());
assertEquals('toString', mock.toString());
assertEquals('valueOf', mock.valueOf());
mockControl.$verifyAll();
}
</script>
</body>
</html>
|
