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Improve utils.hex2rgb tests

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This commit is contained in:
Christian Paul 2018-11-18 19:21:56 -08:00
parent fb624c5784
commit 9ef0d88d55
1 changed files with 12 additions and 15 deletions
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27
src/utils.spec.js
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@ -3,22 +3,19 @@ const utils = require('./utils');
describe('utils', () => {
describe('hex2rgb', () => {
test('#ff0000', () => {
expect(utils.hex2rgb('#ff0000')).toEqual([255,0,0]);
describe.each([
['#ff0000', 255, 0, 0],
['#ffff00', 255, 255, 0],
['#0000ff', 0, 0, 255],
['#112233', 17, 34, 51],
['#888', 136, 136, 136],
])('when given "%s"', (input, r, g, b) => {
test(`returns [${r},${g},${b}]`, () => {
expect(utils.hex2rgb(input)).toEqual([r, g, b]);
});
});
test('#ffff00', () => {
expect(utils.hex2rgb('#ffff00')).toEqual([255,255,0]);
});
test('#0000ff', () => {
expect(utils.hex2rgb('#0000ff')).toEqual([0,0,255]);
});
test('#112233', () => {
expect(utils.hex2rgb('#112233')).toEqual([17,34,51]);
});
test('#888', () => {
expect(utils.hex2rgb('#888')).toEqual([136,136,136]);
});
test('33', () => {
test('throws an Error when given "33"', () => {
function wrapper() {
utils.hex2rgb('33');
}