1// Copyright 2013 the V8 project authors. All rights reserved.
2// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
3//
4// Redistribution and use in source and binary forms, with or without
5// modification, are permitted provided that the following conditions
6// are met:
7// 1.  Redistributions of source code must retain the above copyright
8//     notice, this list of conditions and the following disclaimer.
9// 2.  Redistributions in binary form must reproduce the above copyright
10//     notice, this list of conditions and the following disclaimer in the
11//     documentation and/or other materials provided with the distribution.
12//
13// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
14// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
15// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
16// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
17// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
18// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
19// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
20// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
22// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23
24var wasPostTestScriptParsed = false;
25
26function removeLink(text)
27{
28    return text.replace(/<a[^>]*>/g, "").replace(/<\/a>/g, "");
29}
30
31function description(msg)
32{
33    print(removeLink(msg));
34    print("\nOn success, you will see a series of \"PASS\" messages, followed by \"TEST COMPLETE\".\n");
35    print();
36}
37
38function debug(msg)
39{
40    print(msg);
41}
42
43function escapeString(text)
44{
45    return text.replace(/\0/g, "");
46}
47
48function testPassed(msg)
49{
50    print("PASS", escapeString(msg));
51}
52
53function testFailed(msg)
54{
55    print("FAIL", escapeString(msg));
56}
57
58function areArraysEqual(_a, _b)
59{
60    if (Object.prototype.toString.call(_a) != Object.prototype.toString.call([]))
61        return false;
62    if (_a.length !== _b.length)
63        return false;
64    for (var i = 0; i < _a.length; i++)
65        if (_a[i] !== _b[i])
66            return false;
67    return true;
68}
69
70function isMinusZero(n)
71{
72    // the only way to tell 0 from -0 in JS is the fact that 1/-0 is
73    // -Infinity instead of Infinity
74    return n === 0 && 1/n < 0;
75}
76
77function isResultCorrect(_actual, _expected)
78{
79    if (_expected === 0)
80        return _actual === _expected && (1/_actual) === (1/_expected);
81    if (_actual === _expected)
82        return true;
83    if (typeof(_expected) == "number" && isNaN(_expected))
84        return typeof(_actual) == "number" && isNaN(_actual);
85    if (Object.prototype.toString.call(_expected) == Object.prototype.toString.call([]))
86        return areArraysEqual(_actual, _expected);
87    return false;
88}
89
90function stringify(v)
91{
92    if (v === 0 && 1/v < 0)
93        return "-0";
94    else return "" + v;
95}
96
97function shouldBe(_a, _b)
98{
99  if (typeof _a != "string" || typeof _b != "string")
100    debug("WARN: shouldBe() expects string arguments");
101  var exception;
102  var _av;
103  try {
104     _av = eval(_a);
105  } catch (e) {
106     exception = e;
107  }
108  var _bv = eval(_b);
109
110  if (exception)
111    testFailed(_a + " should be " + _bv + ". Threw exception " + exception);
112  else if (isResultCorrect(_av, _bv))
113    testPassed(_a + " is " + _b);
114  else if (typeof(_av) == typeof(_bv))
115    testFailed(_a + " should be " + _bv + ". Was " + stringify(_av) + ".");
116  else
117    testFailed(_a + " should be " + _bv + " (of type " + typeof _bv + "). Was " + _av + " (of type " + typeof _av + ").");
118}
119
120function shouldBeTrue(_a) { shouldBe(_a, "true"); }
121function shouldBeFalse(_a) { shouldBe(_a, "false"); }
122function shouldBeNaN(_a) { shouldBe(_a, "NaN"); }
123function shouldBeNull(_a) { shouldBe(_a, "null"); }
124
125function shouldBeEqualToString(a, b)
126{
127  if (typeof a !== "string" || typeof b !== "string")
128    debug("WARN: shouldBeEqualToString() expects string arguments");
129  var unevaledString = JSON.stringify(b);
130  shouldBe(a, unevaledString);
131}
132
133function shouldBeUndefined(_a)
134{
135  var exception;
136  var _av;
137  try {
138     _av = eval(_a);
139  } catch (e) {
140     exception = e;
141  }
142
143  if (exception)
144    testFailed(_a + " should be undefined. Threw exception " + exception);
145  else if (typeof _av == "undefined")
146    testPassed(_a + " is undefined.");
147  else
148    testFailed(_a + " should be undefined. Was " + _av);
149}
150
151
152function shouldThrow(_a, _e)
153{
154  var exception;
155  var _av;
156  try {
157     _av = eval(_a);
158  } catch (e) {
159     exception = e;
160  }
161
162  var _ev;
163  if (_e)
164      _ev =  eval(_e);
165
166  if (exception) {
167    if (typeof _e == "undefined" || exception == _ev)
168      testPassed(_a + " threw exception " + exception + ".");
169    else
170      testFailed(_a + " should throw " + (typeof _e == "undefined" ? "an exception" : _ev) + ". Threw exception " + exception + ".");
171  } else if (typeof _av == "undefined")
172    testFailed(_a + " should throw " + (typeof _e == "undefined" ? "an exception" : _ev) + ". Was undefined.");
173  else
174    testFailed(_a + " should throw " + (typeof _e == "undefined" ? "an exception" : _ev) + ". Was " + _av + ".");
175}
176
177function isSuccessfullyParsed()
178{
179    successfullyParsed = true;
180    shouldBeTrue("successfullyParsed");
181    debug("\nTEST COMPLETE\n");
182}
183
184// It's possible for an async test to call finishJSTest() before js-test-post.js
185// has been parsed.
186function finishJSTest()
187{
188    wasFinishJSTestCalled = true;
189    if (!wasPostTestScriptParsed)
190        return;
191    isSuccessfullyParsed();
192}
193