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86d333ee94
* chore: Switch to Node 20 + Vitest * chore: migrate to vitest mock functions * chore: code style (switch to prettier) * test: re-enable long-running test Seems the switch to Node 20 and Vitest has vastly improved the code's and / or the test's runtime! see #1193 * chore: code style * chore: fix failing tests * Updated Documentation in README.md * Update contribution guidelines to state usage of Prettier * fix: set prettier printWidth back to 80 * chore: apply updated code style automatically * fix: set prettier line endings to lf again * chore: apply updated code style automatically --------- Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com> Co-authored-by: Lars Müller <34514239+appgurueu@users.noreply.github.com>
148 lines
3.8 KiB
JavaScript
148 lines
3.8 KiB
JavaScript
import { SinglyCircularLinkedList } from '../SinglyCircularLinkedList'
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describe('SinglyCircularLinkedList', () => {
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let list
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beforeEach(() => {
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list = new SinglyCircularLinkedList()
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})
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it('Check get', () => {
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expect(list.get()).toEqual([])
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expect(list.add(1)).toEqual(1)
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expect(list.get()).toEqual([1])
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expect(list.add(5)).toEqual(2)
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expect(list.get()).toEqual([1, 5])
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})
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it('Check size', () => {
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expect(list.size()).toEqual(0)
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expect(list.add(1)).toEqual(1)
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expect(list.add(1)).toEqual(2)
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expect(list.size()).toEqual(2)
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})
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it('Check head', () => {
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expect(list.head()).toEqual(null)
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expect(list.add(1)).toEqual(1)
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expect(list.head()).toEqual(1)
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expect(list.add(1)).toEqual(2)
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expect(list.head()).toEqual(1)
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expect(list.addAtFirst(100)).toEqual(3)
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expect(list.head()).toEqual(100)
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expect(list.insertAt(0, 500)).toEqual(4)
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expect(list.head()).toEqual(500)
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list.clear()
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expect(list.head()).toEqual(null)
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})
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it('Check isEmpty', () => {
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expect(list.isEmpty()).toEqual(true)
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expect(list.add(1)).toEqual(1)
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expect(list.add(1)).toEqual(2)
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expect(list.isEmpty()).toEqual(false)
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})
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it('Check getElementAt', () => {
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list.add(100)
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list.add(200)
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list.add(300)
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list.add(500)
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list.add(900)
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expect(list.getElementAt(1).data).toEqual(200)
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expect(list.getElementAt(3).data).toEqual(500)
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})
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it('Check addAtFirst', () => {
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list.add(1)
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list.add(5)
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list.add(7)
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list.add(9)
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list.add(0)
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expect(list.get()).toEqual([1, 5, 7, 9, 0])
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list.addAtFirst(100)
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expect(list.get()).toEqual([100, 1, 5, 7, 9, 0])
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})
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it('Check add', () => {
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list.add(1)
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list.add(5)
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list.add(7)
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list.add(9)
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list.add(0)
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expect(list.get()).toEqual([1, 5, 7, 9, 0])
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list.add(100)
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expect(list.get()).toEqual([1, 5, 7, 9, 0, 100])
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})
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it('Check insertAt', () => {
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expect(list.insertAt(0, 100)).toEqual(1)
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expect(list.get()).toEqual([100])
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expect(list.insertAt(0, 200)).toEqual(2)
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expect(list.get()).toEqual([200, 100])
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expect(list.insertAt(2, 300)).toEqual(3)
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expect(list.get()).toEqual([200, 100, 300])
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})
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it('Checks indexOf', () => {
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expect(list.indexOf(200)).toEqual(-1)
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list.add(100)
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list.add(200)
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list.add(300)
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list.add(500)
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list.add(900)
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expect(list.indexOf(200)).toEqual(1)
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})
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it('Check remove', () => {
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expect(list.remove()).toEqual(null)
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list.add(100)
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list.add(200)
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list.add(300)
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list.add(500)
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list.add(900)
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expect(list.get()).toEqual([100, 200, 300, 500, 900])
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const removedData = list.remove()
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expect(removedData).toEqual(900)
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expect(list.get()).toEqual([100, 200, 300, 500])
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})
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it('Check removeFirst', () => {
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expect(list.removeFirst()).toEqual(null)
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list.add(100)
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list.add(200)
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list.add(300)
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list.add(500)
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list.add(900)
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expect(list.get()).toEqual([100, 200, 300, 500, 900])
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const removedData = list.removeFirst()
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expect(removedData).toEqual(100)
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expect(list.get()).toEqual([200, 300, 500, 900])
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})
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it('Check removeAt', () => {
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expect(list.removeAt(1)).toEqual(null)
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list.add(100)
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list.add(200)
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list.add(300)
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list.add(500)
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list.add(900)
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expect(list.get()).toEqual([100, 200, 300, 500, 900])
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const removedData = list.removeAt(2)
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expect(removedData).toEqual(300)
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expect(list.get()).toEqual([100, 200, 500, 900])
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})
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it('Check removeData', () => {
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expect(list.removeData(100)).toEqual(null)
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list.add(100)
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list.add(200)
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list.add(300)
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list.add(500)
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list.add(900)
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expect(list.get()).toEqual([100, 200, 300, 500, 900])
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const removedData = list.removeData(200)
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expect(removedData).toEqual(200)
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expect(list.get()).toEqual([100, 300, 500, 900])
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})
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})
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