-
Notifications
You must be signed in to change notification settings - Fork 28.2k
/
test-stream-iterator-helpers-test262-tests.mjs
166 lines (156 loc) Β· 6.35 KB
/
test-stream-iterator-helpers-test262-tests.mjs
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
import { mustCall } from '../common/index.mjs';
import { Readable } from 'stream';
import assert from 'assert';
// These tests are manually ported from the draft PR for the test262 test suite
// Authored by Rick Waldron in https://github.com/tc39/test262/pull/2818/files
// test262 license:
// The << Software identified by reference to the Ecma Standard* ("Software)">>
// is protected by copyright and is being made available under the
// "BSD License", included below. This Software may be subject to third party
// rights (rights from parties other than Ecma International), including patent
// rights, and no licenses under such third party rights are granted under this
// license even if the third party concerned is a member of Ecma International.
// SEE THE ECMA CODE OF CONDUCT IN PATENT MATTERS AVAILABLE AT
// http://www.ecma-international.org/memento/codeofconduct.htm FOR INFORMATION
// REGARDING THE LICENSING OF PATENT CLAIMS THAT ARE REQUIRED TO IMPLEMENT ECMA
// INTERNATIONAL STANDARDS*
// Copyright (C) 2012-2013 Ecma International
// All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
// 1. Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// 3. Neither the name of the authors nor Ecma International may be used to
// endorse or promote products derived from this software without specific
// prior written permission.
// THIS SOFTWARE IS PROVIDED BY THE ECMA INTERNATIONAL "AS IS" AND ANY EXPRESS
// OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
// OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
// NO EVENT SHALL ECMA INTERNATIONAL BE LIABLE FOR ANY DIRECT, INDIRECT,
// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
// OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
// EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// * Ecma International Standards hereafter means Ecma International Standards
// as well as Ecma Technical Reports
// Note all the tests that check AsyncIterator's prototype itself and things
// that happen before stream conversion were not ported.
{
// asIndexedPairs/is-function
assert.strictEqual(typeof Readable.prototype.asIndexedPairs, 'function');
// asIndexedPairs/indexed-pairs.js
const iterator = Readable.from([0, 1]);
const indexedPairs = iterator.asIndexedPairs();
for await (const [i, v] of indexedPairs) {
assert.strictEqual(i, v);
}
// asIndexedPairs/length.js
assert.strictEqual(Readable.prototype.asIndexedPairs.length, 0);
const descriptor = Object.getOwnPropertyDescriptor(
Readable.prototype,
'asIndexedPairs'
);
assert.strictEqual(descriptor.enumerable, false);
assert.strictEqual(descriptor.configurable, true);
assert.strictEqual(descriptor.writable, true);
}
{
// drop/length
assert.strictEqual(Readable.prototype.drop.length, 1);
const descriptor = Object.getOwnPropertyDescriptor(
Readable.prototype,
'drop'
);
assert.strictEqual(descriptor.enumerable, false);
assert.strictEqual(descriptor.configurable, true);
assert.strictEqual(descriptor.writable, true);
// drop/limit-equals-total
const iterator = Readable.from([1, 2]).drop(2);
const result = await iterator[Symbol.asyncIterator]().next();
assert.deepStrictEqual(result, { done: true, value: undefined });
// drop/limit-greater-than-total.js
const iterator2 = Readable.from([1, 2]).drop(3);
const result2 = await iterator2[Symbol.asyncIterator]().next();
assert.deepStrictEqual(result2, { done: true, value: undefined });
// drop/limit-less-than-total.js
const iterator3 = Readable.from([1, 2]).drop(1);
const result3 = await iterator3[Symbol.asyncIterator]().next();
assert.deepStrictEqual(result3, { done: false, value: 2 });
// drop/limit-rangeerror
assert.throws(() => Readable.from([1]).drop(-1), RangeError);
assert.throws(() => {
Readable.from([1]).drop({
valueOf() {
throw new Error('boom');
}
});
}, /boom/);
// drop/limit-tointeger
const two = await Readable.from([1, 2]).drop({ valueOf: () => 1 }).toArray();
assert.deepStrictEqual(two, [2]);
// drop/name
assert.strictEqual(Readable.prototype.drop.name, 'drop');
// drop/non-constructible
assert.throws(() => new Readable.prototype.drop(1), TypeError);
// drop/proto
const proto = Object.getPrototypeOf(Readable.prototype.drop);
assert.strictEqual(proto, Function.prototype);
}
{
// every/abrupt-iterator-close
const stream = Readable.from([1, 2, 3]);
const e = new Error();
await assert.rejects(stream.every(mustCall(() => {
throw e;
}, 1)), e);
}
{
// every/callable-fn
await assert.rejects(Readable.from([1, 2]).every({}), TypeError);
}
{
// every/callable
Readable.prototype.every.call(Readable.from([]), () => {});
// eslint-disable-next-line array-callback-return
Readable.from([]).every(() => {});
assert.throws(() => {
const r = Readable.from([]);
new r.every(() => {});
}, TypeError);
}
{
// every/false
const iterator = Readable.from([1, 2, 3]);
const result = await iterator.every((v) => v === 1);
assert.strictEqual(result, false);
}
{
// every/every
const iterator = Readable.from([1, 2, 3]);
const result = await iterator.every((v) => true);
assert.strictEqual(result, true);
}
{
// every/is-function
assert.strictEqual(typeof Readable.prototype.every, 'function');
}
{
// every/length
assert.strictEqual(Readable.prototype.every.length, 1);
// every/name
assert.strictEqual(Readable.prototype.every.name, 'every');
// every/propdesc
const descriptor = Object.getOwnPropertyDescriptor(
Readable.prototype,
'every'
);
assert.strictEqual(descriptor.enumerable, false);
assert.strictEqual(descriptor.configurable, true);
assert.strictEqual(descriptor.writable, true);
}