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import { describe, expectTypeOf, it } from 'vitest';
import { faker } from '../../src';
describe('helpers', () => {
describe('shuffle', () => {
describe('inplace: true', () => {
it('const generic single element', () => {
const actual = faker.helpers.shuffle([1], { inplace: true });
expectTypeOf(actual).toEqualTypeOf<Array<1>>();
});
it('const generic multiple elements', () => {
const actual = faker.helpers.shuffle([1, 'a', false], {
inplace: true,
});
expectTypeOf(actual).toEqualTypeOf<Array<1 | 'a' | false>>();
});
});
describe('inplace: false', () => {
it('const generic single element', () => {
const actual = faker.helpers.shuffle([1], { inplace: false });
expectTypeOf(actual).toEqualTypeOf<Array<1>>();
});
it('const generic multiple elements', () => {
const actual = faker.helpers.shuffle([1, 'a', false], {
inplace: false,
});
expectTypeOf(actual).toEqualTypeOf<Array<1 | 'a' | false>>();
});
});
});
describe('uniqueArray', () => {
it('const generic single element', () => {
const actual = faker.helpers.uniqueArray([1], 1);
expectTypeOf(actual).toEqualTypeOf<Array<1>>();
});
it('const generic multiple elements', () => {
const actual = faker.helpers.uniqueArray([1, 'a', false], 3);
expectTypeOf(actual).toEqualTypeOf<Array<1 | 'a' | false>>();
});
});
describe('maybe', () => {
it('generic single element', () => {
const actual = faker.helpers.maybe(() => 1);
expectTypeOf(actual).toEqualTypeOf<number | undefined>();
});
it('const generic single element', () => {
const actual = faker.helpers.maybe(() => 1 as const);
expectTypeOf(actual).toEqualTypeOf<1 | undefined>();
});
});
describe('objectKey', () => {
it('const generic single element', () => {
const actual = faker.helpers.objectKey({ a: 1 });
expectTypeOf(actual).toEqualTypeOf<'a'>();
});
it('const generic multiple elements', () => {
const actual = faker.helpers.objectKey({ a: 1, b: 'a', c: false });
expectTypeOf(actual).toEqualTypeOf<'a' | 'b' | 'c'>();
});
});
describe('objectValue', () => {
it('const generic single element', () => {
const actual = faker.helpers.objectValue({ a: 1 });
expectTypeOf(actual).toEqualTypeOf<1>();
});
it('const generic multiple elements', () => {
const actual = faker.helpers.objectValue({ a: 1, b: 'a', c: false });
expectTypeOf(actual).toEqualTypeOf<1 | 'a' | false>();
});
});
describe('objectEntry', () => {
it('const generic single element', () => {
const actual = faker.helpers.objectEntry({ a: 1 });
expectTypeOf(actual).toEqualTypeOf<['a', 1]>();
});
it('const generic multiple elements', () => {
const actual = faker.helpers.objectEntry({ a: 1, b: 'a', c: false });
// TODO @ST-DDT 2024-02-25: Check whether we can infer the return type any better
expectTypeOf(actual).toEqualTypeOf<['a' | 'b' | 'c', false | 1 | 'a']>();
});
});
describe('arrayElement', () => {
it('const generic single element', () => {
const actual = faker.helpers.arrayElement([1]);
expectTypeOf(actual).toEqualTypeOf<1>();
});
it('const generic multiple elements', () => {
const actual = faker.helpers.arrayElement([1, 'a', false]);
expectTypeOf(actual).toEqualTypeOf<1 | 'a' | false>();
});
});
describe('arrayElements', () => {
it('const generic single element', () => {
const actual = faker.helpers.arrayElements([1], 1);
expectTypeOf(actual).toEqualTypeOf<Array<1>>();
});
it('const generic multiple elements', () => {
const actual = faker.helpers.arrayElements([1, 'a', false], 3);
expectTypeOf(actual).toEqualTypeOf<Array<1 | 'a' | false>>();
});
});
describe('multiple', () => {
it('const generic single element', () => {
const actual = faker.helpers.multiple(() => 1);
expectTypeOf(actual).toEqualTypeOf<number[]>();
});
it('const generic multiple elements', () => {
const actual = faker.helpers.multiple(() => 1, { count: 3 });
expectTypeOf(actual).toEqualTypeOf<number[]>();
});
});
});
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