зеркало из https://github.com/mozilla/gecko-dev.git
42 строки
1.8 KiB
HTML
42 строки
1.8 KiB
HTML
<!DOCTYPE html>
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<meta charset=utf-8>
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<title>Test for named getter enumerability</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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/* global test, assert_equals, assert_true, assert_false, assert_not_equals */
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test(function() {
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var list = document.getElementsByTagName("div");
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var desc = Object.getOwnPropertyDescriptor(list, "0");
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assert_equals(typeof desc, "object", "Should have a '0' property");
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assert_true(desc.enumerable, "'0' property should be enumerable");
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desc = Object.getOwnPropertyDescriptor(list, "log");
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assert_equals(typeof desc, "object", "Should have a 'log' property");
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assert_false(desc.enumerable, "'log' property should not be enumerable");
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}, "Correct getOwnPropertyDescriptor behavior");
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test(function() {
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var list = document.getElementsByTagName("div");
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var props = [];
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for (var prop in list) {
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props.push(prop);
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}
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assert_not_equals(props.indexOf("0"), -1, "Should enumerate '0'");
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assert_equals(props.indexOf("log"), -1, "Should not enumerate 'log'");
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}, "Correct enumeration behavior");
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test(function() {
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var list = document.getElementsByTagName("div");
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var props = Object.keys(list);
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assert_not_equals(props.indexOf("0"), -1, "Keys should contain '0'");
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assert_equals(props.indexOf("log"), -1, "Keys should not contain 'log'");
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}, "Correct keys() behavior");
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test(function() {
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var list = document.getElementsByTagName("div");
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var props = Object.getOwnPropertyNames(list);
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assert_not_equals(props.indexOf("0"), -1,
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"own prop names should contain '0'");
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assert_not_equals(props.indexOf("log"), -1,
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"own prop names should contain 'log'");
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}, "Correct getOwnPropertyNames() behavior");
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</script>
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