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86 lines
2.7 KiB
TypeScript
86 lines
2.7 KiB
TypeScript
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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import { getContrastingColor, addAlpha } from '@superset-ui/core';
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describe('color utils', () => {
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describe('getContrastingColor', () => {
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it('when called with 3-digit hex color', () => {
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const color = getContrastingColor('#000');
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expect(color).toBe('#FFF');
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});
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it('when called with 6-digit hex color', () => {
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const color = getContrastingColor('#000000');
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expect(color).toBe('#FFF');
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});
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it('when called with no # prefix hex color', () => {
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const color = getContrastingColor('000000');
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expect(color).toBe('#FFF');
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});
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it('when called with rgb color', () => {
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const color = getContrastingColor('rgb(0, 0, 0)');
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expect(color).toBe('#FFF');
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});
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it('when called with thresholds', () => {
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const color1 = getContrastingColor('rgb(255, 255, 255)');
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const color2 = getContrastingColor('rgb(255, 255, 255)', 255);
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expect(color1).toBe('#000');
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expect(color2).toBe('#FFF');
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});
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it('when called with rgba color, throw error', () => {
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expect(() => {
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getContrastingColor('rgba(0, 0, 0, 0.1)');
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}).toThrow();
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});
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it('when called with invalid color, throw error', () => {
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expect(() => {
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getContrastingColor('#0000');
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}).toThrow();
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});
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});
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describe('addAlpha', () => {
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it('adds 20% opacity to black', () => {
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expect(addAlpha('#000000', 0.2)).toBe('#00000033');
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});
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it('adds 50% opacity to white', () => {
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expect(addAlpha('#FFFFFF', 0.5)).toBe('#FFFFFF80');
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});
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it('should apply transparent alpha', () => {
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expect(addAlpha('#000000', 0)).toBe('#00000000');
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});
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it('should apply fully opaque', () => {
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expect(addAlpha('#000000', 1)).toBe('#000000FF');
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});
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it('opacity should be between 0 and 1', () => {
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expect(() => {
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addAlpha('#000000', 2);
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}).toThrow();
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expect(() => {
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addAlpha('#000000', -1);
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}).toThrow();
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});
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});
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});
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