37 строки
1.3 KiB
JavaScript
37 строки
1.3 KiB
JavaScript
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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'use strict';
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jest.unmock('setNormalizedColorAlpha');
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jest.unmock('normalizeColor');
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var setNormalizedColorAlpha = require('setNormalizedColorAlpha');
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var normalizeColor = require('normalizeColor');
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describe('setNormalizedColorAlpha', function() {
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it('should adjust the alpha of the color passed in', function() {
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expect(setNormalizedColorAlpha(0xffffffff, 0.4)).toBe(0xffffff66);
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expect(setNormalizedColorAlpha(0x204080ff, 0.6)).toBe(0x20408099);
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});
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it('should clamp invalid input', function() {
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expect(setNormalizedColorAlpha(0xffffffff, 1.5)).toBe(0xffffffff);
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expect(setNormalizedColorAlpha(0xffffffff, -1)).toBe(0xffffff00);
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});
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it('should ignore the color\'s original alpha', function() {
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expect(setNormalizedColorAlpha(0x204080aa, 0.8)).toBe(0x204080cc);
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});
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it('should return the original color when alpha is unchanged', function() {
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var originalColor = normalizeColor('blue');
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expect(setNormalizedColorAlpha(originalColor, 1)).toBe(originalColor);
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});
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});
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