36 lines
1.3 KiB
JavaScript
36 lines
1.3 KiB
JavaScript
'use strict';
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var getDescriptors = require('../');
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getDescriptors.shim();
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var test = require('tape');
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var defineProperties = require('define-properties');
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var runTests = require('./tests');
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var isEnumerable = Object.prototype.propertyIsEnumerable;
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var functionsHaveNames = function f() {}.name === 'f';
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test('shimmed', function (t) {
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t.equal(Object.getOwnPropertyDescriptors.length, 1, 'Object.getOwnPropertyDescriptors has a length of 1');
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t.test('Function name', { skip: !functionsHaveNames }, function (st) {
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st.equal(Object.getOwnPropertyDescriptors.name, 'getOwnPropertyDescriptors', 'Object.getOwnPropertyDescriptors has name "getOwnPropertyDescriptors"');
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st.end();
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});
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t.test('enumerability', { skip: !defineProperties.supportsDescriptors }, function (et) {
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et.equal(false, isEnumerable.call(Object, 'getOwnPropertyDescriptors'), 'Object.getOwnPropertyDescriptors is not enumerable');
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et.end();
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});
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var supportsStrictMode = (function () { return typeof this === 'undefined'; }());
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t.test('bad object/this value', { skip: !supportsStrictMode }, function (st) {
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st.throws(function () { return getDescriptors(undefined, 'a'); }, TypeError, 'undefined is not an object');
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st.throws(function () { return getDescriptors(null, 'a'); }, TypeError, 'null is not an object');
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st.end();
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});
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runTests(Object.getOwnPropertyDescriptors, t);
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t.end();
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});
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