1// Copyright 2014 the V8 project authors. All rights reserved.
2// Redistribution and use in source and binary forms, with or without
3// modification, are permitted provided that the following conditions are
4// met:
5//
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8//     * Redistributions in binary form must reproduce the above
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26// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
28// Mimics assert module in node.
29
30function compose(message1, message2) {
31  return message2 ? message1 + ': ' + message2 : message1
32}
33
34function fail(actual, expected, message, operator) {
35  var e = Error(compose('FAIL', message) +
36    ': (' + actual + ' ' + operator + ' ' + expected + ') should hold');
37  fails.push(e);
38  throw e;
39}
40
41function ok(value, message) {
42  if (!value) {
43    throw Error(compose('FAIL', + message) + ': value = ' + value);
44  }
45}
46
47function equal(actual, expected, message) {
48  if (!(expected == actual)) {
49    fail(actual, expected, message, '==');
50  }
51}
52
53function notEqual(actual, expected, message) {
54  if (!(expected != actual)) {
55    fail(actual, expected, message, '!=');
56  }
57}
58
59function strictEqual(actual, expected, message) {
60  if (!(expected === actual)) {
61    fail(actual, expected, message, '===');
62  }
63}
64
65function notStrictEqual(actual, expected, message) {
66  if (!(expected !== actual)) {
67    fail(actual, expected, message, '!==');
68  }
69}
70
71function assert(value, message) {
72  return ok(value, message);
73}
74
75function notImplemented() {
76  throw Error('FAIL: This assertion function is not yet implemented.');
77}
78
79function clear() {
80  this.fails = [];
81}
82
83assert.fail = fail;
84assert.ok = ok;
85assert.equal = equal;
86assert.notEqual = notEqual;
87assert.deepEqual = notImplemented;
88assert.notDeepEqual = notImplemented;
89assert.strictEqual = strictEqual;
90assert.notStrictEqual = notStrictEqual;
91assert.throws = notImplemented;
92assert.doesNotThrow = notImplemented;
93assert.ifError = notImplemented;
94
95assert.clear = clear;
96
97exports = assert;
98