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import { moveOneToEnd, moveOneToStart, moveToEnd, moveToStart } from 'common/util/arrayUtils';
import { describe, expect, it } from 'vitest';
describe('Array Manipulation Functions', () => {
const originalArray = ['a', 'b', 'c', 'd'];
describe('moveOneToEnd', () => {
describe('with callback', () => {
it('should move an item forward by one position', () => {
const array = [...originalArray];
const result = moveOneToEnd(array, (item) => item === 'b');
expect(result).toEqual(['a', 'c', 'b', 'd']);
});
it('should do nothing if the item is at the end', () => {
const array = [...originalArray];
const result = moveOneToEnd(array, (item) => item === 'd');
expect(result).toEqual(['a', 'b', 'c', 'd']);
});
it("should leave the array unchanged if the item isn't in the array", () => {
const array = [...originalArray];
const result = moveOneToEnd(array, (item) => item === 'z');
expect(result).toEqual(originalArray);
});
});
describe('with item', () => {
it('should move an item forward by one position', () => {
const array = [...originalArray];
const result = moveOneToEnd(array, (item) => item === 'b');
expect(result).toEqual(['a', 'c', 'b', 'd']);
});
it('should do nothing if the item is at the end', () => {
const array = [...originalArray];
const result = moveOneToEnd(array, (item) => item === 'd');
expect(result).toEqual(['a', 'b', 'c', 'd']);
});
it("should leave the array unchanged if the item isn't in the array", () => {
const array = [...originalArray];
const result = moveOneToEnd(array, (item) => item === 'z');
expect(result).toEqual(originalArray);
});
});
});
describe('moveToStart', () => {
describe('with callback', () => {
it('should move an item to the front', () => {
const array = [...originalArray];
const result = moveToStart(array, (item) => item === 'c');
expect(result).toEqual(['c', 'a', 'b', 'd']);
});
it('should do nothing if the item is already at the front', () => {
const array = [...originalArray];
const result = moveToStart(array, (item) => item === 'a');
expect(result).toEqual(['a', 'b', 'c', 'd']);
});
it("should leave the array unchanged if the item isn't in the array", () => {
const array = [...originalArray];
const result = moveToStart(array, (item) => item === 'z');
expect(result).toEqual(originalArray);
});
});
describe('with item', () => {
it('should move an item to the front', () => {
const array = [...originalArray];
const result = moveToStart(array, 'c');
expect(result).toEqual(['c', 'a', 'b', 'd']);
});
it('should do nothing if the item is already at the front', () => {
const array = [...originalArray];
const result = moveToStart(array, 'a');
expect(result).toEqual(['a', 'b', 'c', 'd']);
});
it("should leave the array unchanged if the item isn't in the array", () => {
const array = [...originalArray];
const result = moveToStart(array, 'z');
expect(result).toEqual(originalArray);
});
});
});
describe('moveOneToStart', () => {
describe('with callback', () => {
it('should move an item backward by one position', () => {
const array = [...originalArray];
const result = moveOneToStart(array, (item) => item === 'c');
expect(result).toEqual(['a', 'c', 'b', 'd']);
});
it('should do nothing if the item is at the beginning', () => {
const array = [...originalArray];
const result = moveOneToStart(array, (item) => item === 'a');
expect(result).toEqual(['a', 'b', 'c', 'd']);
});
it("should leave the array unchanged if the item isn't in the array", () => {
const array = [...originalArray];
const result = moveOneToStart(array, (item) => item === 'z');
expect(result).toEqual(originalArray);
});
});
describe('with item', () => {
it('should move an item backward by one position', () => {
const array = [...originalArray];
const result = moveOneToStart(array, 'c');
expect(result).toEqual(['a', 'c', 'b', 'd']);
});
it('should do nothing if the item is at the beginning', () => {
const array = [...originalArray];
const result = moveOneToStart(array, 'a');
expect(result).toEqual(['a', 'b', 'c', 'd']);
});
it("should leave the array unchanged if the item isn't in the array", () => {
const array = [...originalArray];
const result = moveOneToStart(array, 'z');
expect(result).toEqual(originalArray);
});
});
});
describe('moveToEnd', () => {
describe('with callback', () => {
it('should move an item to the back', () => {
const array = [...originalArray];
const result = moveToEnd(array, (item) => item === 'b');
expect(result).toEqual(['a', 'c', 'd', 'b']);
});
it('should do nothing if the item is already at the back', () => {
const array = [...originalArray];
const result = moveToEnd(array, (item) => item === 'd');
expect(result).toEqual(['a', 'b', 'c', 'd']);
});
it("should leave the array unchanged if the item isn't in the array", () => {
const array = [...originalArray];
const result = moveToEnd(array, (item) => item === 'z');
expect(result).toEqual(originalArray);
});
});
describe('with item', () => {
it('should move an item to the back', () => {
const array = [...originalArray];
const result = moveToEnd(array, 'b');
expect(result).toEqual(['a', 'c', 'd', 'b']);
});
it('should do nothing if the item is already at the back', () => {
const array = [...originalArray];
const result = moveToEnd(array, 'd');
expect(result).toEqual(['a', 'b', 'c', 'd']);
});
it("should leave the array unchanged if the item isn't in the array", () => {
const array = [...originalArray];
const result = moveToEnd(array, 'z');
expect(result).toEqual(originalArray);
});
});
});
});
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