33 lines
1.5 KiB
JavaScript
33 lines
1.5 KiB
JavaScript
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import * as arrayUtils from '~/lib/utils/array_utility';
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describe('array_utility', () => {
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describe('swapArrayItems', () => {
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it.each`
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array | leftIndex | rightIndex | result
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${[]} | ${0} | ${0} | ${[]}
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${[1]} | ${0} | ${1} | ${[1]}
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${[1, 2]} | ${0} | ${0} | ${[1, 2]}
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${[1, 2]} | ${0} | ${1} | ${[2, 1]}
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${[1, 2]} | ${1} | ${2} | ${[1, 2]}
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${[1, 2]} | ${2} | ${1} | ${[1, 2]}
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${[1, 2]} | ${1} | ${10} | ${[1, 2]}
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${[1, 2]} | ${10} | ${1} | ${[1, 2]}
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${[1, 2]} | ${1} | ${-1} | ${[1, 2]}
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${[1, 2]} | ${-1} | ${1} | ${[1, 2]}
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${[1, 2, 3]} | ${1} | ${1} | ${[1, 2, 3]}
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${[1, 2, 3]} | ${0} | ${2} | ${[3, 2, 1]}
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${[1, 2, 3, 4]} | ${0} | ${2} | ${[3, 2, 1, 4]}
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${[1, 2, 3, 4, 5]} | ${0} | ${4} | ${[5, 2, 3, 4, 1]}
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${[1, 2, 3, 4, 5]} | ${1} | ${2} | ${[1, 3, 2, 4, 5]}
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${[1, 2, 3, 4, 5]} | ${2} | ${1} | ${[1, 3, 2, 4, 5]}
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`(
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'given $array with index $leftIndex and $rightIndex will return $result',
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({ array, leftIndex, rightIndex, result }) => {
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const actual = arrayUtils.swapArrayItems(array, leftIndex, rightIndex);
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expect(actual).toEqual(result);
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expect(actual).not.toBe(array);
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},
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);
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});
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});
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