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import { describe, expect, test } from 'vitest'
import {
expectArrayEqualIgnoreOrder,
generateInterleavedCombinations,
generatePartialCombinations,
generatePermutations,
} from './test-utils'
describe('test-utils', () => {
describe('generatePermutations', () => {
const testCases = [
{
input: ['a', 'b', 'c'],
expected: [
['a', 'b', 'c'],
['a', 'c', 'b'],
['b', 'a', 'c'],
['b', 'c', 'a'],
['c', 'a', 'b'],
['c', 'b', 'a'],
],
},
{
input: ['a', 'b'],
expected: [
['a', 'b'],
['b', 'a'],
],
},
{
input: ['a'],
expected: [['a']],
},
]
test.each(testCases)('$input $expected', ({ input, expected }) => {
const permutations = generatePermutations(input)
expect(permutations).toEqual(expected)
})
})
describe('generatePartialCombinations', () => {
const testCases = [
{
input: ['a', 'b', 'c'],
minLength: 2,
expected: [
['a', 'b'],
['a', 'c'],
['b', 'c'],
['a', 'b', 'c'],
],
},
{
input: ['a', 'b'],
expected: [['a', 'b']],
minLength: 2,
},
{
input: ['a'],
expected: [],
minLength: 2,
},
{
input: ['a'],
expected: [['a']],
minLength: 1,
},
{
input: ['a'],
expected: [[], ['a']],
minLength: 0,
},
]
test.each(testCases)(
'$input $minLength $expected',
({ input, minLength, expected }) => {
const combinations = generatePartialCombinations(input, minLength)
expectArrayEqualIgnoreOrder(combinations, expected)
},
)
})
describe('generateInterleavedCombinations', () => {
const testCases = [
{
data: ['a', 'b'],
additional: ['x'],
expected: [
['a', 'b'],
['x', 'a', 'b'],
['a', 'x', 'b'],
['a', 'b', 'x'],
],
},
]
test.each(testCases)(
'$input $expected',
({ data, additional, expected }) => {
const combinations = generateInterleavedCombinations(data, additional)
expectArrayEqualIgnoreOrder(combinations, expected)
},
)
})
})
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