angular-cn/packages/zone.js/test/browser/define-property.spec.ts

27 lines
931 B
TypeScript

/**
* @license
* Copyright Google Inc. All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
describe('defineProperty', function() {
it('should not throw when defining length on an array', function() {
const someArray: any[] = [];
expect(() => Object.defineProperty(someArray, 'length', {value: 2, writable: false}))
.not.toThrow();
});
it('should not throw error when try to defineProperty with a frozen desc', function() {
const obj = {};
const desc = Object.freeze({value: null, writable: true});
Object.defineProperty(obj, 'prop', desc);
});
it('should not throw error when try to defineProperty with a frozen obj', function() {
const obj = {};
Object.freeze(obj);
Object.defineProperty(obj, 'prop', {configurable: true, writable: true, value: 'value'});
});
});