Files
react-native/Libraries/Utilities/__tests__/Dimensions-test.js
T
James Ide 0ee5f68929 Migrate "Libraries" from Haste to standard path-based requires (sans vendor & renderers) (#24749)
Summary:
This is the next step in moving RN towards standard path-based requires. All the requires in `Libraries` have been rewritten to use relative requires with a few exceptions, namely, `vendor` and `Renderer/oss` since those need to be changed upstream. This commit uses relative requires instead of `react-native/...` so that if Facebook were to stop syncing out certain folders and therefore remove code from the react-native package, internal code at Facebook would not need to change.

See the umbrella issue at https://github.com/facebook/react-native/issues/24316 for more detail.

[General] [Changed] - Migrate "Libraries" from Haste to standard path-based requires
Pull Request resolved: https://github.com/facebook/react-native/pull/24749

Differential Revision: D15258017

Pulled By: cpojer

fbshipit-source-id: a1f480ea36c05c659b6f37c8f02f6f9216d5a323
2019-05-08 08:48:59 -07:00

67 lines
1.6 KiB
JavaScript

/**
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @format
* @emails oncall+react_native
*/
'use strict';
describe('Dimensions', () => {
const Dimensions = require('../Dimensions');
const Platform = require('../Platform');
it('should set window dimensions', () => {
Dimensions.set({
windowPhysicalPixels: {
width: 400,
height: 800,
scale: 2,
fontScale: 3,
},
});
expect(Dimensions.get('window').width).toEqual(200);
expect(Dimensions.get('window').height).toEqual(400);
expect(Dimensions.get('window').scale).toEqual(2);
expect(Dimensions.get('window').fontScale).toEqual(3);
});
it('should set screen dimensions on Android', () => {
Platform.OS = 'android';
const dimensions = {
width: 400,
height: 800,
scale: 2,
fontScale: 3,
};
Dimensions.set({
windowPhysicalPixels: dimensions,
screenPhysicalPixels: dimensions,
});
expect(Dimensions.get('screen').width).toEqual(200);
expect(Dimensions.get('screen').height).toEqual(400);
expect(Dimensions.get('screen').scale).toEqual(2);
expect(Dimensions.get('screen').fontScale).toEqual(3);
});
it('should set screen dimensions on iOS', () => {
Platform.OS = 'ios';
const dimensions = {
width: 400,
height: 800,
scale: 2,
fontScale: 3,
};
Dimensions.set({
windowPhysicalPixels: dimensions,
});
expect(Dimensions.get('screen')).toEqual(Dimensions.get('window'));
});
});