react-native-macos/Libraries/Utilities/__tests__/Dimensions-test.js

67 строки
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'));
});
});