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
|
/*
* Any copyright is dedicated to the Public Domain.
* https://creativecommons.org/publicdomain/zero/1.0/
*/
if (typeof getBuildConfiguration === "undefined") {
var getBuildConfiguration =
SpecialPowers.Cu.getJSTestingFunctions().getBuildConfiguration;
}
if (typeof getRealmConfiguration === "undefined") {
var getRealmConfiguration =
SpecialPowers.Cu.getJSTestingFunctions().getRealmConfiguration;
}
if (getBuildConfiguration()['new-set-methods'] && getRealmConfiguration().enableNewSetMethods) {
assertEq(typeof Set.prototype.union, 'function');
assertEq(Set.prototype.union.length, 1);
assertEq(Set.prototype.union.name, 'union');
assertSetContainsExactOrderedItems(new Set([1, true, null]).union(new Set()), [1, true, null]);
assertSetContainsExactOrderedItems(new Set([1, true, null]).union([1, true, null]), [1, true, null]);
assertSetContainsExactOrderedItems(new Set([1, 2, 3]).union([2, 3, 4]), [1, 2, 3, 4]);
assertSetContainsExactOrderedItems(new Set([1, 2, 3]).union([4]), [1, 2, 3, 4]);
// Works when the argument is a custom iterable which follows the Symbol.iterator protocol
assertSetContainsExactOrderedItems(new Set([1, 2, 3]).union(makeArrayIterator([3, 4])), [1, 2, 3, 4]);
assertSetContainsExactOrderedItems(new Set(['a']).union('abc'), ['a', 'b', 'c']);
// Works when the `this` is a custom iterable which follows the Symbol.iterator protocol
assertSetContainsExactOrderedItems(Set.prototype.union.call(makeArrayIterator([1, 2, 3, 3, 2]), [4, 5, 6]), [1, 2, 3, 4, 5, 6]);
// Does not modify the original set object
const set = new Set([1]);
assertEq(set.union([2]) !== set, true);
// Argument must be iterable
assertThrowsInstanceOf(function () {
const set = new Set();
set.union();
}, TypeError);
for (const arg of [null, {}, true, 1, undefined, NaN, Symbol()]) {
assertThrowsInstanceOf(function () {
const set = new Set();
set.union(arg);
}, TypeError);
}
// `this` must be an Object
for (const arg of [null, undefined, Symbol()]) {
assertThrowsInstanceOf(function () {
Set.prototype.union.call(arg, []);
}, TypeError);
}
// `this` must be iterable
assertThrowsInstanceOf(function () {
Set.prototype.union.call({}, []);
}, TypeError);
} else {
assertEq(typeof Set.prototype.union, 'undefined');
}
if (typeof reportCompare === "function")
reportCompare(true, true);
|
