vue3-yuanma/packages/reactivity/__tests__/collections/Set.spec.ts

360 lines
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TypeScript

import { state, effect, isState, toRaw } from '../../src'
describe('observer/collections', () => {
describe('Set', () => {
it('instanceof', () => {
const original = new Set()
const observed = state(original)
expect(isState(observed)).toBe(true)
expect(original instanceof Set).toBe(true)
expect(observed instanceof Set).toBe(true)
})
it('should observe mutations', () => {
let dummy
const set = state(new Set())
effect(() => (dummy = set.has('value')))
expect(dummy).toBe(false)
set.add('value')
expect(dummy).toBe(true)
set.delete('value')
expect(dummy).toBe(false)
})
it('should observe for of iteration', () => {
let dummy
const set = state(new Set() as Set<number>)
effect(() => {
dummy = 0
for (let num of set) {
dummy += num
}
})
expect(dummy).toBe(0)
set.add(2)
set.add(1)
expect(dummy).toBe(3)
set.delete(2)
expect(dummy).toBe(1)
set.clear()
expect(dummy).toBe(0)
})
it('should observe forEach iteration', () => {
let dummy: any
const set = state(new Set())
effect(() => {
dummy = 0
set.forEach(num => (dummy += num))
})
expect(dummy).toBe(0)
set.add(2)
set.add(1)
expect(dummy).toBe(3)
set.delete(2)
expect(dummy).toBe(1)
set.clear()
expect(dummy).toBe(0)
})
it('should observe values iteration', () => {
let dummy
const set = state(new Set() as Set<number>)
effect(() => {
dummy = 0
for (let num of set.values()) {
dummy += num
}
})
expect(dummy).toBe(0)
set.add(2)
set.add(1)
expect(dummy).toBe(3)
set.delete(2)
expect(dummy).toBe(1)
set.clear()
expect(dummy).toBe(0)
})
it('should observe keys iteration', () => {
let dummy
const set = state(new Set() as Set<number>)
effect(() => {
dummy = 0
for (let num of set.keys()) {
dummy += num
}
})
expect(dummy).toBe(0)
set.add(2)
set.add(1)
expect(dummy).toBe(3)
set.delete(2)
expect(dummy).toBe(1)
set.clear()
expect(dummy).toBe(0)
})
it('should observe entries iteration', () => {
let dummy
const set = state(new Set() as Set<number>)
effect(() => {
dummy = 0
// eslint-disable-next-line no-unused-vars
for (let [key, num] of set.entries()) {
key
dummy += num
}
})
expect(dummy).toBe(0)
set.add(2)
set.add(1)
expect(dummy).toBe(3)
set.delete(2)
expect(dummy).toBe(1)
set.clear()
expect(dummy).toBe(0)
})
it('should be triggered by clearing', () => {
let dummy
const set = state(new Set())
effect(() => (dummy = set.has('key')))
expect(dummy).toBe(false)
set.add('key')
expect(dummy).toBe(true)
set.clear()
expect(dummy).toBe(false)
})
it('should not observe custom property mutations', () => {
let dummy
const set: any = state(new Set())
effect(() => (dummy = set.customProp))
expect(dummy).toBe(undefined)
set.customProp = 'Hello World'
expect(dummy).toBe(undefined)
})
it('should observe size mutations', () => {
let dummy
const set = state(new Set())
effect(() => (dummy = set.size))
expect(dummy).toBe(0)
set.add('value')
set.add('value2')
expect(dummy).toBe(2)
set.delete('value')
expect(dummy).toBe(1)
set.clear()
expect(dummy).toBe(0)
})
it('should not observe non value changing mutations', () => {
let dummy
const set = state(new Set())
const setSpy = jest.fn(() => (dummy = set.has('value')))
effect(setSpy)
expect(dummy).toBe(false)
expect(setSpy).toHaveBeenCalledTimes(1)
set.add('value')
expect(dummy).toBe(true)
expect(setSpy).toHaveBeenCalledTimes(2)
set.add('value')
expect(dummy).toBe(true)
expect(setSpy).toHaveBeenCalledTimes(2)
set.delete('value')
expect(dummy).toBe(false)
expect(setSpy).toHaveBeenCalledTimes(3)
set.delete('value')
expect(dummy).toBe(false)
expect(setSpy).toHaveBeenCalledTimes(3)
set.clear()
expect(dummy).toBe(false)
expect(setSpy).toHaveBeenCalledTimes(3)
})
it('should not observe raw data', () => {
let dummy
const set = state(new Set())
effect(() => (dummy = toRaw(set).has('value')))
expect(dummy).toBe(false)
set.add('value')
expect(dummy).toBe(false)
})
it('should not observe raw iterations', () => {
let dummy = 0
const set = state(new Set() as Set<number>)
effect(() => {
dummy = 0
for (let [num] of toRaw(set).entries()) {
dummy += num
}
for (let num of toRaw(set).keys()) {
dummy += num
}
for (let num of toRaw(set).values()) {
dummy += num
}
toRaw(set).forEach(num => {
dummy += num
})
for (let num of toRaw(set)) {
dummy += num
}
})
expect(dummy).toBe(0)
set.add(2)
set.add(3)
expect(dummy).toBe(0)
set.delete(2)
expect(dummy).toBe(0)
})
it('should not be triggered by raw mutations', () => {
let dummy
const set = state(new Set())
effect(() => (dummy = set.has('value')))
expect(dummy).toBe(false)
toRaw(set).add('value')
expect(dummy).toBe(false)
dummy = true
toRaw(set).delete('value')
expect(dummy).toBe(true)
toRaw(set).clear()
expect(dummy).toBe(true)
})
it('should not observe raw size mutations', () => {
let dummy
const set = state(new Set())
effect(() => (dummy = toRaw(set).size))
expect(dummy).toBe(0)
set.add('value')
expect(dummy).toBe(0)
})
it('should not be triggered by raw size mutations', () => {
let dummy
const set = state(new Set())
effect(() => (dummy = set.size))
expect(dummy).toBe(0)
toRaw(set).add('value')
expect(dummy).toBe(0)
})
it('should support objects as key', () => {
let dummy
const key = {}
const set = state(new Set())
const setSpy = jest.fn(() => (dummy = set.has(key)))
effect(setSpy)
expect(dummy).toBe(false)
expect(setSpy).toHaveBeenCalledTimes(1)
set.add({})
expect(dummy).toBe(false)
expect(setSpy).toHaveBeenCalledTimes(1)
set.add(key)
expect(dummy).toBe(true)
expect(setSpy).toHaveBeenCalledTimes(2)
})
it('should not pollute original Set with Proxies', () => {
const set = new Set()
const observed = state(set)
const value = state({})
observed.add(value)
expect(observed.has(value)).toBe(true)
expect(set.has(value)).toBe(false)
})
it('should observe nested values in iterations (forEach)', () => {
const set = state(new Set([{ foo: 1 }]))
let dummy: any
effect(() => {
dummy = 0
set.forEach(value => {
expect(isState(value)).toBe(true)
dummy += value.foo
})
})
expect(dummy).toBe(1)
set.forEach(value => {
value.foo++
})
expect(dummy).toBe(2)
})
it('should observe nested values in iterations (values)', () => {
const set = state(new Set([{ foo: 1 }]))
let dummy: any
effect(() => {
dummy = 0
for (const value of set.values()) {
expect(isState(value)).toBe(true)
dummy += value.foo
}
})
expect(dummy).toBe(1)
set.forEach(value => {
value.foo++
})
expect(dummy).toBe(2)
})
it('should observe nested values in iterations (entries)', () => {
const set = state(new Set([{ foo: 1 }]))
let dummy: any
effect(() => {
dummy = 0
for (const [key, value] of set.entries()) {
expect(isState(key)).toBe(true)
expect(isState(value)).toBe(true)
dummy += value.foo
}
})
expect(dummy).toBe(1)
set.forEach(value => {
value.foo++
})
expect(dummy).toBe(2)
})
it('should observe nested values in iterations (for...of)', () => {
const set = state(new Set([{ foo: 1 }]))
let dummy: any
effect(() => {
dummy = 0
for (const value of set) {
expect(isState(value)).toBe(true)
dummy += value.foo
}
})
expect(dummy).toBe(1)
set.forEach(value => {
value.foo++
})
expect(dummy).toBe(2)
})
})
})