source: frontend/node_modules/call-bound/test/index.js

Last change on this file was 9af201e, checked in by MBK <marija.karapandzova@…>, 11 days ago

Fix frontend appearance

  • Property mode set to 100644
File size: 2.4 KB
Line 
1'use strict';
2
3var test = require('tape');
4
5var callBound = require('../');
6
7/** @template {true} T @template U @typedef {T extends U ? T : never} AssertType */
8
9test('callBound', function (t) {
10 // static primitive
11 t.equal(callBound('Array.length'), Array.length, 'Array.length yields itself');
12 t.equal(callBound('%Array.length%'), Array.length, '%Array.length% yields itself');
13
14 // static non-function object
15 t.equal(callBound('Array.prototype'), Array.prototype, 'Array.prototype yields itself');
16 t.equal(callBound('%Array.prototype%'), Array.prototype, '%Array.prototype% yields itself');
17 t.equal(callBound('Array.constructor'), Array.constructor, 'Array.constructor yields itself');
18 t.equal(callBound('%Array.constructor%'), Array.constructor, '%Array.constructor% yields itself');
19
20 // static function
21 t.equal(callBound('Date.parse'), Date.parse, 'Date.parse yields itself');
22 t.equal(callBound('%Date.parse%'), Date.parse, '%Date.parse% yields itself');
23
24 // prototype primitive
25 t.equal(callBound('Error.prototype.message'), Error.prototype.message, 'Error.prototype.message yields itself');
26 t.equal(callBound('%Error.prototype.message%'), Error.prototype.message, '%Error.prototype.message% yields itself');
27
28 var x = callBound('Object.prototype.toString');
29 var y = callBound('%Object.prototype.toString%');
30
31 // prototype function
32 t.notEqual(x, Object.prototype.toString, 'Object.prototype.toString does not yield itself');
33 t.notEqual(y, Object.prototype.toString, '%Object.prototype.toString% does not yield itself');
34 t.equal(x(true), Object.prototype.toString.call(true), 'call-bound Object.prototype.toString calls into the original');
35 t.equal(y(true), Object.prototype.toString.call(true), 'call-bound %Object.prototype.toString% calls into the original');
36
37 t['throws'](
38 // @ts-expect-error
39 function () { callBound('does not exist'); },
40 SyntaxError,
41 'nonexistent intrinsic throws'
42 );
43 t['throws'](
44 // @ts-expect-error
45 function () { callBound('does not exist', true); },
46 SyntaxError,
47 'allowMissing arg still throws for unknown intrinsic'
48 );
49
50 t.test('real but absent intrinsic', { skip: typeof WeakRef !== 'undefined' }, function (st) {
51 st['throws'](
52 function () { callBound('WeakRef'); },
53 TypeError,
54 'real but absent intrinsic throws'
55 );
56 st.equal(callBound('WeakRef', true), undefined, 'allowMissing arg avoids exception');
57 st.end();
58 });
59
60 t.end();
61});
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