1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
|
import * as arrayUtils from '~/lib/utils/array_utility';
describe('array_utility', () => {
describe('swapArrayItems', () => {
it.each`
array | leftIndex | rightIndex | result
${[]} | ${0} | ${0} | ${[]}
${[1]} | ${0} | ${1} | ${[1]}
${[1, 2]} | ${0} | ${0} | ${[1, 2]}
${[1, 2]} | ${0} | ${1} | ${[2, 1]}
${[1, 2]} | ${1} | ${2} | ${[1, 2]}
${[1, 2]} | ${2} | ${1} | ${[1, 2]}
${[1, 2]} | ${1} | ${10} | ${[1, 2]}
${[1, 2]} | ${10} | ${1} | ${[1, 2]}
${[1, 2]} | ${1} | ${-1} | ${[1, 2]}
${[1, 2]} | ${-1} | ${1} | ${[1, 2]}
${[1, 2, 3]} | ${1} | ${1} | ${[1, 2, 3]}
${[1, 2, 3]} | ${0} | ${2} | ${[3, 2, 1]}
${[1, 2, 3, 4]} | ${0} | ${2} | ${[3, 2, 1, 4]}
${[1, 2, 3, 4, 5]} | ${0} | ${4} | ${[5, 2, 3, 4, 1]}
${[1, 2, 3, 4, 5]} | ${1} | ${2} | ${[1, 3, 2, 4, 5]}
${[1, 2, 3, 4, 5]} | ${2} | ${1} | ${[1, 3, 2, 4, 5]}
`(
'given $array with index $leftIndex and $rightIndex will return $result',
({ array, leftIndex, rightIndex, result }) => {
const actual = arrayUtils.swapArrayItems(array, leftIndex, rightIndex);
expect(actual).toEqual(result);
expect(actual).not.toBe(array);
},
);
});
});
|
