mirror of https://github.com/webpack/webpack.git
18 lines
426 B
JavaScript
18 lines
426 B
JavaScript
|
"use strict";
|
||
|
|
|
||
|
|
const ArrayHelpers = require("../lib/util/ArrayHelpers");
|
||
|
|
|
||
|
|
describe("ArrayHelpers", () => {
|
||
|
|
it("groupBy should partition into two arrays", () => {
|
||
|
|
expect(
|
||
|
|
ArrayHelpers.groupBy([1, 2, 3, 4, 5, 6], x => x % 2 === 0)
|
||
|
|
).toStrictEqual([
|
||
|
|
[2, 4, 6],
|
||
|
|
[1, 3, 5]
|
||
|
|
]);
|
||
|
|
});
|
||
|
|
it("groupBy works with empty array", () => {
|
||
|
|
expect(ArrayHelpers.groupBy([], x => x % 2 === 0)).toStrictEqual([[], []]);
|
||
|
|
});
|
||
|
|
});
|