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1 // Set methods throw when passed a this-value that isn't a Set. |
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2 |
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3 load(libdir + "asserts.js"); |
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4 |
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5 function testcase(obj, fn) { |
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6 assertEq(typeof fn, "function"); |
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7 var args = Array.slice(arguments, 2); |
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8 assertThrowsInstanceOf(function () { fn.apply(obj, args); }, TypeError); |
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9 } |
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10 |
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11 var Set_size_getter = Object.getOwnPropertyDescriptor(Set.prototype, "size").get; |
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12 |
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13 function test(obj) { |
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14 testcase(obj, Set.prototype.has, 12); |
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15 testcase(obj, Set.prototype.add, 12); |
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16 testcase(obj, Set.prototype.delete, 12); |
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17 testcase(obj, Set.prototype.clear); |
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18 testcase(obj, Set.prototype.keys); |
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19 testcase(obj, Set.prototype.values); |
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20 testcase(obj, Set.prototype.entries); |
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21 testcase(obj, Set_size_getter); |
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22 } |
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23 |
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24 test(Set.prototype); |
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25 test(Object.create(new Set)); |
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26 test(new Map()); |
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27 test({}); |
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28 test(null); |
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29 test(undefined); |