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Summary: This PR is a followup to https://github.com/facebook/react-native/pull/11417 and should be merged after that one is merged. 1. Add support for creating blobs from strings, not just other blobs 1. Add the `File` constructor which is a superset of `Blob` 1. Add the `FileReader` API which can be used to read blobs as strings or data url (base64) 1. Add support for uploading and downloading blobs via `XMLHttpRequest` and `fetch` 1. Add ability to download local files on Android so you can do `fetch(uri).then(res => res.blob())` to get a blob for a local file (iOS already supported this) 1. Clone the repo https://github.com/expo/react-native-blob-test 1. Change the `package.json` and update `react-native` dependency to point to this branch, then run `npm install` 1. Run the `server.js` file with `node server.js` 1. Open the `index.common.js` file and replace `localhost` with your computer's IP address 1. Start the packager with `yarn start` and run the app on your device If everything went well, all tests should pass, and you should see a screen like this: ! Pull to rerun all tests or tap on specific test to re-run it [GENERAL] [FEATURE] [Blob] - Implement blob support for XMLHttpRequest Closes https://github.com/facebook/react-native/pull/11573 Reviewed By: shergin Differential Revision: D6082054 Pulled By: hramos fbshipit-source-id: cc9c174fdefdfaf6e5d9fd7b300120a01a50e8c1
47 lines
1.3 KiB
JavaScript
47 lines
1.3 KiB
JavaScript
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*
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* @format
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* @emails oncall+react_native
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*/
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'use strict';
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jest.setMock('NativeModules', {
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BlobModule: require('../__mocks__/BlobModule'),
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});
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const File = require('File');
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describe('File', function() {
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it('should create empty file', () => {
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const file = new File([], 'test.jpg');
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expect(file).toBeInstanceOf(File);
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expect(file.data.offset).toBe(0);
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expect(file.data.size).toBe(0);
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expect(file.size).toBe(0);
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expect(file.type).toBe('');
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expect(file.name).toBe('test.jpg');
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expect(file.lastModified).toEqual(expect.any(Number));
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});
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it('should create empty file with type', () => {
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const file = new File([], 'test.jpg', {type: 'image/jpeg'});
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expect(file.type).toBe('image/jpeg');
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});
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it('should create empty file with lastModified', () => {
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const file = new File([], 'test.jpg', {lastModified: 1337});
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expect(file.lastModified).toBe(1337);
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});
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it('should throw on invalid arguments', () => {
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expect(() => new File()).toThrow();
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expect(() => new File([])).toThrow();
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});
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});
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