react-native/Libraries/Blob/__tests__/File-test.js

47 lines
1.3 KiB
JavaScript

/**
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*
* @format
* @emails oncall+react_native
*/
'use strict';
jest.setMock('NativeModules', {
BlobModule: require('../__mocks__/BlobModule'),
});
const File = require('File');
describe('File', function() {
it('should create empty file', () => {
const file = new File([], 'test.jpg');
expect(file).toBeInstanceOf(File);
expect(file.data.offset).toBe(0);
expect(file.data.size).toBe(0);
expect(file.size).toBe(0);
expect(file.type).toBe('');
expect(file.name).toBe('test.jpg');
expect(file.lastModified).toEqual(expect.any(Number));
});
it('should create empty file with type', () => {
const file = new File([], 'test.jpg', {type: 'image/jpeg'});
expect(file.type).toBe('image/jpeg');
});
it('should create empty file with lastModified', () => {
const file = new File([], 'test.jpg', {lastModified: 1337});
expect(file.lastModified).toBe(1337);
});
it('should throw on invalid arguments', () => {
expect(() => new File()).toThrow();
expect(() => new File([])).toThrow();
});
});