source: imaps-frontend/node_modules/es-define-property/test/index.js@ 79a0317

'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
                /** @type {{ a: number, b?: number, c?: number }} */
                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();
});