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83 lines
3.1 KiB
TypeScript
83 lines
3.1 KiB
TypeScript
/**
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* Copyright (c) 2021 OpenLens Authors
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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* the Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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import { bifurcateArray, splitArray } from "../splitArray";
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describe("split array on element tests", () => {
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it("empty array", () => {
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expect(splitArray([], 10)).toStrictEqual([[], [], false]);
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});
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it("one element, not in array", () => {
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expect(splitArray([1], 10)).toStrictEqual([[1], [], false]);
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});
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it("ten elements, not in array", () => {
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expect(splitArray([0, 1, 2, 3, 4, 5, 6, 7, 8, 9], 10)).toStrictEqual([[0, 1, 2, 3, 4, 5, 6, 7, 8, 9], [], false]);
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});
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it("one elements, in array", () => {
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expect(splitArray([1], 1)).toStrictEqual([[], [], true]);
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});
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it("ten elements, in front array", () => {
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expect(splitArray([0, 1, 2, 3, 4, 5, 6, 7, 8, 9], 0)).toStrictEqual([[], [1, 2, 3, 4, 5, 6, 7, 8, 9], true]);
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});
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it("ten elements, in middle array", () => {
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expect(splitArray([0, 1, 2, 3, 4, 5, 6, 7, 8, 9], 4)).toStrictEqual([[0, 1, 2, 3], [5, 6, 7, 8, 9], true]);
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});
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it("ten elements, in end array", () => {
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expect(splitArray([0, 1, 2, 3, 4, 5, 6, 7, 8, 9], 9)).toStrictEqual([[0, 1, 2, 3, 4, 5, 6, 7, 8], [], true]);
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});
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});
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describe("bifurcateArray", () => {
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it("should return tuple of empty arrays from empty array", () => {
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const [left, right] = bifurcateArray([], () => true);
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expect(left).toStrictEqual([]);
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expect(right).toStrictEqual([]);
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});
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it("should return all true condition returning items in the right array", () => {
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const [left, right] = bifurcateArray([1, 2, 3], () => true);
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expect(left).toStrictEqual([]);
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expect(right).toStrictEqual([1, 2, 3]);
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});
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it("should return all false condition returning items in the right array", () => {
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const [left, right] = bifurcateArray([1, 2, 3], () => false);
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expect(left).toStrictEqual([1, 2, 3]);
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expect(right).toStrictEqual([]);
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});
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it("should split array as specified", () => {
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const [left, right] = bifurcateArray([1, 2, 3], (i) => Boolean(i % 2));
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expect(left).toStrictEqual([2]);
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expect(right).toStrictEqual([1, 3]);
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});
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});
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