react-native/Libraries/Image/__tests__/resolveAssetSource-test.js

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/**
* 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.
*/
'use strict';
jest
.dontMock('AssetRegistry')
.dontMock('../resolveAssetSource')
.dontMock('../../../local-cli/bundle/assetPathUtils');
var AssetRegistry = require('AssetRegistry');
var Platform = require('Platform');
var NativeModules = require('NativeModules');
var resolveAssetSource = require('../resolveAssetSource');
function expectResolvesAsset(input, expectedSource) {
var assetId = AssetRegistry.registerAsset(input);
expect(resolveAssetSource(assetId)).toEqual(expectedSource);
}
describe('resolveAssetSource', () => {
beforeEach(() => {
jest.resetModuleRegistry();
});
it('returns same source for simple static and network images', () => {
var source1 = {uri: 'https://www.facebook.com/logo'};
expect(resolveAssetSource(source1)).toBe(source1);
var source2 = {uri: 'logo'};
expect(resolveAssetSource(source2)).toBe(source2);
});
it('does not change deprecated assets', () => {
expect(resolveAssetSource({
deprecated: true,
width: 100,
height: 200,
uri: 'logo',
})).toEqual({
deprecated: true,
width: 100,
height: 200,
uri: 'logo',
});
});
it('ignores any weird data', () => {
expect(resolveAssetSource(null)).toBe(null);
expect(resolveAssetSource(42)).toBe(null);
expect(resolveAssetSource('nonsense')).toBe(null);
});
describe('bundle was loaded from network (DEV)', () => {
beforeEach(() => {
NativeModules.SourceCode.scriptURL =
'http://10.0.0.1:8081/main.bundle';
Platform.OS = 'ios';
});
it('uses network image', () => {
expectResolvesAsset({
__packager_asset: true,
fileSystemLocation: '/root/app/module/a',
httpServerLocation: '/assets/module/a',
width: 100,
height: 200,
scales: [1],
hash: '5b6f00f',
name: 'logo',
type: 'png',
}, {
__packager_asset: true,
width: 100,
height: 200,
uri: 'http://10.0.0.1:8081/assets/module/a/logo.png?platform=ios&hash=5b6f00f',
scale: 1,
});
});
it('picks matching scale', () => {
expectResolvesAsset({
__packager_asset: true,
fileSystemLocation: '/root/app/module/a',
httpServerLocation: '/assets/module/a',
width: 100,
height: 200,
scales: [1, 2, 3],
hash: '5b6f00f',
name: 'logo',
type: 'png',
}, {
__packager_asset: true,
width: 100,
height: 200,
uri: 'http://10.0.0.1:8081/assets/module/a/logo@2x.png?platform=ios&hash=5b6f00f',
scale: 2,
});
});
});
describe('bundle was loaded from file on iOS', () => {
beforeEach(() => {
NativeModules.SourceCode.scriptURL =
'file:///Path/To/Sample.app/main.bundle';
Platform.OS = 'ios';
});
it('uses pre-packed image', () => {
expectResolvesAsset({
__packager_asset: true,
fileSystemLocation: '/root/app/module/a',
httpServerLocation: '/assets/module/a',
width: 100,
height: 200,
scales: [1],
hash: '5b6f00f',
name: 'logo',
type: 'png',
}, {
__packager_asset: true,
width: 100,
height: 200,
uri: '/Path/To/Sample.app/assets/module/a/logo.png',
scale: 1,
});
});
});
describe('bundle was loaded from assets on Android', () => {
beforeEach(() => {
NativeModules.SourceCode.scriptURL =
'assets://Path/To/Simulator/main.bundle';
Platform.OS = 'android';
});
it('uses pre-packed image', () => {
expectResolvesAsset({
__packager_asset: true,
fileSystemLocation: '/root/app/module/a',
httpServerLocation: '/assets/AwesomeModule/Subdir',
width: 100,
height: 200,
scales: [1],
hash: '5b6f00f',
name: '!@Logo#1_€', // Invalid chars shouldn't get passed to native
type: 'png',
}, {
__packager_asset: true,
width: 100,
height: 200,
uri: 'awesomemodule_subdir_logo1_',
scale: 1,
});
});
});
describe('bundle was loaded from file on Android', () => {
beforeEach(() => {
NativeModules.SourceCode.scriptURL =
'file:///sdcard/Path/To/Simulator/main.bundle';
Platform.OS = 'android';
});
it('uses pre-packed image', () => {
expectResolvesAsset({
__packager_asset: true,
fileSystemLocation: '/root/app/module/a',
httpServerLocation: '/assets/AwesomeModule/Subdir',
width: 100,
height: 200,
scales: [1],
hash: '5b6f00f',
name: '!@Logo#1_€',
type: 'png',
}, {
__packager_asset: true,
width: 100,
height: 200,
uri: 'file:///sdcard/Path/To/Simulator/drawable-mdpi/awesomemodule_subdir_logo1_.png',
scale: 1,
});
});
});
describe('bundle was loaded from raw file on Android', () => {
beforeEach(() => {
NativeModules.SourceCode.scriptURL =
'/sdcard/Path/To/Simulator/main.bundle';
Platform.OS = 'android';
});
it('uses sideloaded image', () => {
expectResolvesAsset({
__packager_asset: true,
fileSystemLocation: '/root/app/module/a',
httpServerLocation: '/assets/AwesomeModule/Subdir',
width: 100,
height: 200,
scales: [1],
hash: '5b6f00f',
name: '!@Logo#1_€',
type: 'png',
}, {
__packager_asset: true,
width: 100,
height: 200,
uri: 'file:///sdcard/Path/To/Simulator/drawable-mdpi/awesomemodule_subdir_logo1_.png',
scale: 1,
});
});
});
});
describe('resolveAssetSource.pickScale', () => {
it('picks matching scale', () => {
expect(resolveAssetSource.pickScale([1], 2)).toBe(1);
expect(resolveAssetSource.pickScale([1, 2, 3], 2)).toBe(2);
expect(resolveAssetSource.pickScale([1, 2], 3)).toBe(2);
expect(resolveAssetSource.pickScale([1, 2, 3, 4], 3.5)).toBe(4);
expect(resolveAssetSource.pickScale([3, 4], 2)).toBe(3);
expect(resolveAssetSource.pickScale([], 2)).toBe(1);
});
});