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f541c34067
Summary: This PR add tests for several utilities in `Libraries/Utilities`, as a follow-up of #23903. The following utilities are now tested: * `clamp.js` * `binareToBase64.js` * `DeviceInfo.js` * `mergeIntoFast.js` * `PixelRatio.js` * `infoLog.js` * `logError.js` * `warnOnce.js` * `mapWithSeparator` (added a missing test) Not applicable, since it only adds tests. Pull Request resolved: https://github.com/facebook/react-native/pull/23989 Differential Revision: D14502806 Pulled By: cpojer fbshipit-source-id: e2c3b3a35f4f765d5336b998ab92dba14eeac7bc
33 lines
880 B
JavaScript
33 lines
880 B
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+react_native
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*/
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'use strict';
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describe('clamp', () => {
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const clamp = require('clamp');
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it('should return the value if the value does not exceed boundaries', () => {
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expect(clamp(0, 5, 10)).toEqual(5);
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expect(clamp(5, 5, 10)).toEqual(5);
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expect(clamp(0, 5, 5)).toEqual(5);
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expect(clamp(5, 5, 5)).toEqual(5);
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});
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it('should return the min value if the value is too low', () => {
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expect(clamp(10, 5, 20)).toEqual(10);
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expect(clamp(10, 9, 20)).toEqual(10);
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});
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it('should return the max value if the value is too high', () => {
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expect(clamp(10, 25, 20)).toEqual(20);
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expect(clamp(10, 21, 20)).toEqual(20);
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});
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});
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