mirror of
https://github.com/zhigang1992/react-native.git
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bea57d871f
Summary: Adds support for the `deleted` key to remove modules from the bundle. Without this, source maps would break after removing a module, since it would still end up in the patched bundle but not in the source map. Reviewed By: mjesun Differential Revision: D12874011 fbshipit-source-id: 79239756854cb2c02f14ec8b0bb2b649766393fe
112 lines
3.1 KiB
JavaScript
112 lines
3.1 KiB
JavaScript
/**
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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* @format
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* @emails oncall+javascript_foundation
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*/
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'use strict';
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describe('DeltaPatcher', () => {
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const window = (global.window = {});
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require('../DeltaPatcher');
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it('should initialize to an empty bundle', () => {
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global.Date = jest.fn();
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const dp = new window.DeltaPatcher();
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expect(dp.getLastRevisionId()).toBe(undefined);
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expect(dp.getLastModifiedDate()).toBe(global.Date.mock.instances[0]);
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expect(dp.getLastNumModifiedFiles()).toBe(0);
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// Empty pre and post.
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expect(dp.getAllModules()).toEqual(['', '']);
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});
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it('should expect a base bundle at initialization', () => {
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const dp = new window.DeltaPatcher();
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expect(() => {
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dp.applyDelta({
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base: false,
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revisionId: 'hello',
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modules: [],
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deleted: [],
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});
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}).toThrow();
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});
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it('should accept a base bundle at initialization', () => {
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const dp = new window.DeltaPatcher();
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global.Date = jest.fn();
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dp.applyDelta({
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base: true,
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revisionId: 'rev0',
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pre: 'pre0',
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post: 'post0',
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modules: [[0, '__d(0);']],
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});
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expect(dp.getLastRevisionId()).toBe('rev0');
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expect(dp.getLastModifiedDate()).toBe(global.Date.mock.instances[0]);
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expect(dp.getLastNumModifiedFiles()).toBe(1);
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expect(dp.getAllModules()).toEqual(['pre0', '__d(0);', 'post0']);
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});
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it('should accept a delta bundle after a base bundle', () => {
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const dp = new window.DeltaPatcher();
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dp.applyDelta({
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base: true,
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revisionId: 'rev0',
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pre: 'pre0',
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post: 'post0',
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modules: [[0, '__d(0);'], [1, '__d(1);'], [2, '__d(2);']],
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});
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global.Date = jest.fn();
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dp.applyDelta({
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base: false,
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revisionId: 'rev1',
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modules: [[1, '__d(1.1);'], [3, '__d(3);']],
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deleted: [0],
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});
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expect(dp.getLastRevisionId()).toBe('rev1');
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expect(dp.getLastModifiedDate()).toBe(global.Date.mock.instances[0]);
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expect(dp.getLastNumModifiedFiles()).toBe(3);
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expect(dp.getAllModules()).toEqual([
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'pre0',
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'__d(1.1);',
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'__d(2);',
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'__d(3);',
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'post0',
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]);
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});
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it('should accept a base bundle after initialization', () => {
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const dp = new window.DeltaPatcher();
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dp.applyDelta({
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base: true,
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revisionId: 'rev0',
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pre: 'pre0',
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post: 'post0',
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modules: [[0, '__d(0);'], [1, '__d(1);'], [2, '__d(2);']],
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});
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dp.applyDelta({
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base: false,
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revisionId: 'rev1',
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modules: [[1, '__d(1.1);'], [3, '__d(3);']],
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deleted: [0],
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});
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global.Date = jest.fn();
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dp.applyDelta({
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base: true,
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revisionId: 'rev2',
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pre: 'pre2',
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post: 'post2',
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modules: [[4, '__d(4);'], [5, '__d(5);']],
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});
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expect(dp.getLastRevisionId()).toBe('rev2');
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expect(dp.getLastModifiedDate()).toBe(global.Date.mock.instances[0]);
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expect(dp.getLastNumModifiedFiles()).toBe(2);
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expect(dp.getAllModules()).toEqual(['pre2', '__d(4);', '__d(5);', 'post2']);
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});
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});
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