зеркало из https://github.com/mozilla/gecko-dev.git
25 строки
878 B
HTML
25 строки
878 B
HTML
<!DOCTYPE html>
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<meta charset=utf-8>
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<title>Test for ...</title>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<div id="log"></div>
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<script>
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test(function() {
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var desc = Object.getOwnPropertyDescriptor(Promise, Symbol.species);
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assert_not_equals(desc, undefined, "Should have a property");
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assert_equals(desc.configurable, true, "Property should be configurable");
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assert_equals(desc.enumerable, false, "Property should not be enumerable");
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assert_equals(desc.set, undefined, "Should not have a setter");
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var getter = desc.get;
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var things = [undefined, null, 5, "xyz", Promise, Object];
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for (var thing of things) {
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assert_equals(getter.call(thing), thing,
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"Getter should return its this value");
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}
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}, "Promise should have an @@species getter that works per spec");
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</script>
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