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- 'use strict';
- var $defineProperty = require('../');
- var test = require('tape');
- var gOPD = require('gopd');
- test('defineProperty: supported', { skip: !$defineProperty }, function (t) {
- t.plan(4);
- t.equal(typeof $defineProperty, 'function', 'defineProperty is supported');
- if ($defineProperty && gOPD) { // this `if` check is just to shut TS up
- var o = { a: 1 };
- $defineProperty(o, 'b', { enumerable: true, value: 2 });
- t.deepEqual(
- gOPD(o, 'b'),
- {
- configurable: false,
- enumerable: true,
- value: 2,
- writable: false
- },
- 'property descriptor is as expected'
- );
- $defineProperty(o, 'c', { enumerable: false, value: 3, writable: true });
- t.deepEqual(
- gOPD(o, 'c'),
- {
- configurable: false,
- enumerable: false,
- value: 3,
- writable: true
- },
- 'property descriptor is as expected'
- );
- }
- t.equal($defineProperty, Object.defineProperty, 'defineProperty is Object.defineProperty');
- t.end();
- });
- test('defineProperty: not supported', { skip: !!$defineProperty }, function (t) {
- t.notOk($defineProperty, 'defineProperty is not supported');
- t.match(
- typeof $defineProperty,
- /^(?:undefined|boolean)$/,
- '`typeof defineProperty` is `undefined` or `boolean`'
- );
- t.end();
- });
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