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