306 lines
7.8 KiB
TypeScript
306 lines
7.8 KiB
TypeScript
import { reactive, effect, toRaw, isReactive } from '../../src'
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describe('reactivity/collections', () => {
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describe('Map', () => {
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test('instanceof', () => {
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const original = new Map()
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const observed = reactive(original)
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expect(isReactive(observed)).toBe(true)
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expect(original instanceof Map).toBe(true)
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expect(observed instanceof Map).toBe(true)
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})
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it('should observe mutations', () => {
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let dummy
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const map = reactive(new Map())
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effect(() => {
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dummy = map.get('key')
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})
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expect(dummy).toBe(undefined)
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map.set('key', 'value')
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expect(dummy).toBe('value')
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map.set('key', 'value2')
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expect(dummy).toBe('value2')
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map.delete('key')
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expect(dummy).toBe(undefined)
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})
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it('should observe size mutations', () => {
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let dummy
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const map = reactive(new Map())
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effect(() => (dummy = map.size))
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expect(dummy).toBe(0)
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map.set('key1', 'value')
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map.set('key2', 'value2')
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expect(dummy).toBe(2)
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map.delete('key1')
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expect(dummy).toBe(1)
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map.clear()
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expect(dummy).toBe(0)
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})
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it('should observe for of iteration', () => {
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let dummy
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const map = reactive(new Map())
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effect(() => {
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dummy = 0
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// eslint-disable-next-line no-unused-vars
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for (let [key, num] of map) {
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key
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dummy += num
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}
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})
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expect(dummy).toBe(0)
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map.set('key1', 3)
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expect(dummy).toBe(3)
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map.set('key2', 2)
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expect(dummy).toBe(5)
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map.delete('key1')
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expect(dummy).toBe(2)
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map.clear()
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expect(dummy).toBe(0)
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})
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it('should observe forEach iteration', () => {
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let dummy: any
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const map = reactive(new Map())
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effect(() => {
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dummy = 0
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map.forEach((num: any) => (dummy += num))
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})
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expect(dummy).toBe(0)
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map.set('key1', 3)
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expect(dummy).toBe(3)
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map.set('key2', 2)
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expect(dummy).toBe(5)
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map.delete('key1')
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expect(dummy).toBe(2)
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map.clear()
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expect(dummy).toBe(0)
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})
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it('should observe keys iteration', () => {
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let dummy
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const map = reactive(new Map())
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effect(() => {
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dummy = 0
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for (let key of map.keys()) {
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dummy += key
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}
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})
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expect(dummy).toBe(0)
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map.set(3, 3)
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expect(dummy).toBe(3)
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map.set(2, 2)
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expect(dummy).toBe(5)
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map.delete(3)
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expect(dummy).toBe(2)
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map.clear()
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expect(dummy).toBe(0)
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})
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it('should observe values iteration', () => {
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let dummy
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const map = reactive(new Map())
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effect(() => {
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dummy = 0
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for (let num of map.values()) {
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dummy += num
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}
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})
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expect(dummy).toBe(0)
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map.set('key1', 3)
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expect(dummy).toBe(3)
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map.set('key2', 2)
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expect(dummy).toBe(5)
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map.delete('key1')
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expect(dummy).toBe(2)
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map.clear()
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expect(dummy).toBe(0)
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})
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it('should observe entries iteration', () => {
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let dummy
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const map = reactive(new Map())
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effect(() => {
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dummy = 0
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// eslint-disable-next-line no-unused-vars
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for (let [key, num] of map.entries()) {
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key
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dummy += num
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}
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})
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expect(dummy).toBe(0)
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map.set('key1', 3)
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expect(dummy).toBe(3)
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map.set('key2', 2)
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expect(dummy).toBe(5)
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map.delete('key1')
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expect(dummy).toBe(2)
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map.clear()
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expect(dummy).toBe(0)
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})
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it('should be triggered by clearing', () => {
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let dummy
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const map = reactive(new Map())
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effect(() => (dummy = map.get('key')))
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expect(dummy).toBe(undefined)
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map.set('key', 3)
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expect(dummy).toBe(3)
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map.clear()
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expect(dummy).toBe(undefined)
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})
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it('should not observe custom property mutations', () => {
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let dummy
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const map: any = reactive(new Map())
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effect(() => (dummy = map.customProp))
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expect(dummy).toBe(undefined)
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map.customProp = 'Hello World'
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expect(dummy).toBe(undefined)
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})
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it('should not observe non value changing mutations', () => {
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let dummy
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const map = reactive(new Map())
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const mapSpy = jest.fn(() => (dummy = map.get('key')))
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effect(mapSpy)
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expect(dummy).toBe(undefined)
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expect(mapSpy).toHaveBeenCalledTimes(1)
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map.set('key', 'value')
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expect(dummy).toBe('value')
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expect(mapSpy).toHaveBeenCalledTimes(2)
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map.set('key', 'value')
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expect(dummy).toBe('value')
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expect(mapSpy).toHaveBeenCalledTimes(2)
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map.delete('key')
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expect(dummy).toBe(undefined)
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expect(mapSpy).toHaveBeenCalledTimes(3)
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map.delete('key')
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expect(dummy).toBe(undefined)
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expect(mapSpy).toHaveBeenCalledTimes(3)
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map.clear()
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expect(dummy).toBe(undefined)
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expect(mapSpy).toHaveBeenCalledTimes(3)
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})
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it('should not observe raw data', () => {
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let dummy
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const map = reactive(new Map())
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effect(() => (dummy = toRaw(map).get('key')))
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expect(dummy).toBe(undefined)
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map.set('key', 'Hello')
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expect(dummy).toBe(undefined)
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map.delete('key')
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expect(dummy).toBe(undefined)
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})
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it('should not pollute original Map with Proxies', () => {
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const map = new Map()
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const observed = reactive(map)
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const value = reactive({})
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observed.set('key', value)
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expect(map.get('key')).not.toBe(value)
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expect(map.get('key')).toBe(toRaw(value))
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})
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it('should return observable versions of contained values', () => {
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const observed = reactive(new Map())
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const value = {}
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observed.set('key', value)
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const wrapped = observed.get('key')
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expect(isReactive(wrapped)).toBe(true)
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expect(toRaw(wrapped)).toBe(value)
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})
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it('should observed nested data', () => {
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const observed = reactive(new Map())
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observed.set('key', { a: 1 })
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let dummy
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effect(() => {
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dummy = observed.get('key').a
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})
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observed.get('key').a = 2
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expect(dummy).toBe(2)
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})
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it('should observe nested values in iterations (forEach)', () => {
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const map = reactive(new Map([[1, { foo: 1 }]]))
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let dummy: any
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effect(() => {
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dummy = 0
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map.forEach(value => {
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expect(isReactive(value)).toBe(true)
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dummy += value.foo
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})
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})
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expect(dummy).toBe(1)
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map.get(1)!.foo++
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expect(dummy).toBe(2)
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})
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it('should observe nested values in iterations (values)', () => {
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const map = reactive(new Map([[1, { foo: 1 }]]))
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let dummy: any
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effect(() => {
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dummy = 0
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for (const value of map.values()) {
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expect(isReactive(value)).toBe(true)
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dummy += value.foo
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}
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})
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expect(dummy).toBe(1)
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map.get(1)!.foo++
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expect(dummy).toBe(2)
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})
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it('should observe nested values in iterations (entries)', () => {
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const key = {}
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const map = reactive(new Map([[key, { foo: 1 }]]))
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let dummy: any
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effect(() => {
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dummy = 0
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for (const [key, value] of map.entries()) {
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key
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expect(isReactive(key)).toBe(true)
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expect(isReactive(value)).toBe(true)
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dummy += value.foo
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}
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})
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expect(dummy).toBe(1)
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map.get(key)!.foo++
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expect(dummy).toBe(2)
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})
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it('should observe nested values in iterations (for...of)', () => {
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const key = {}
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const map = reactive(new Map([[key, { foo: 1 }]]))
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let dummy: any
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effect(() => {
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dummy = 0
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for (const [key, value] of map) {
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key
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expect(isReactive(key)).toBe(true)
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expect(isReactive(value)).toBe(true)
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dummy += value.foo
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}
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})
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expect(dummy).toBe(1)
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map.get(key)!.foo++
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expect(dummy).toBe(2)
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})
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})
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})
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