forked from chakra-core/ChakraCore
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathcommon-functionality.js
More file actions
48 lines (46 loc) · 2.99 KB
/
common-functionality.js
File metadata and controls
48 lines (46 loc) · 2.99 KB
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
//-------------------------------------------------------------------------------------------------------
// Copyright (C) Microsoft. All rights reserved.
// Licensed under the MIT license. See LICENSE.txt file in the project root for full license information.
//-------------------------------------------------------------------------------------------------------
WScript.LoadScriptFile("..\\UnitTestFramework\\UnitTestFramework.js");
testRunner.runTests([
{
name: "Helpers should not show up in stack traces",
body() {
for (const builtin of [Array.prototype.forEach, Array.prototype.filter, Array.prototype.flatMap]) {
assert.isTrue(typeof(builtin.name) === "string" && builtin.name.length > 0, `Test requires builtin.name to be set for ${builtin.toString()}`);
try {
builtin.call([1, 2, 3], function callback() { throw new Error("error in callback") });
assert.isTrue(false, `Exception swallowed from callback for ${builtin.name}`);
} catch (e) {
const frames = e.stack.split("\n");
assert.isTrue(/error in callback/.test(frames[0]), `Invalid first frame "${frames[0]}" for ${builtin.name}`);
assert.isTrue(/at callback \(/.test(frames[1]), `Invalid second frame "${frames[1]}" for ${builtin.name}`);
assert.isTrue(new RegExp(`at Array.prototype.${builtin.name} \\(native code\\)`, "i").test(frames[2]), `Invalid third frame "${frames[2]}" for ${builtin.name}`);
assert.isTrue(/at body \(/.test(frames[3]), `Invalid fourth frame "${frames[3]}" for ${builtin.name}`);
}
}
}
},
{
name: "(Existing) JsBuiltIns shouldn't be constructable",
body() {
for (const builtin of [
Array.prototype.values,
Array.prototype.entries,
Array.prototype.keys,
Array.prototype.indexOf,
Array.prototype.forEach,
Array.prototype.filter,
Array.prototype.flat,
Array.prototype.flatMap,
Object.fromEntries,
]) {
assert.isTrue(typeof(builtin.name) === "string" && builtin.name.length > 0, `Test requires builtin.name to be set for ${builtin.toString()}`);
assert.throws(() => new builtin(), TypeError, `${builtin.name} should not be constructable (using new)`, "Function is not a constructor");
assert.throws(() => Reflect.construct(builtin, []), TypeError, `${builtin.name} should not be constructable (using Reflect.construct target)`, "'target' is not a constructor");
assert.throws(() => Reflect.construct(function(){}, [], builtin), TypeError, `${builtin.name} should not be constructable (using Reflect.construct newTarget)`, "'newTarget' is not a constructor");
}
}
},
], { verbose: false });