91 lines
2.5 KiB
TypeScript
91 lines
2.5 KiB
TypeScript
import { reactive, isReactive, effect, toRaw } from '../../src'
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describe('reactivity/collections', () => {
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describe('WeakSet', () => {
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it('instanceof', () => {
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const original = new WeakSet()
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const observed = reactive(original)
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expect(isReactive(observed)).toBe(true)
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expect(original instanceof WeakSet).toBe(true)
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expect(observed instanceof WeakSet).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 value = {}
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const set = reactive(new WeakSet())
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effect(() => (dummy = set.has(value)))
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expect(dummy).toBe(false)
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set.add(value)
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expect(dummy).toBe(true)
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set.delete(value)
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expect(dummy).toBe(false)
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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 set: any = reactive(new WeakSet())
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effect(() => (dummy = set.customProp))
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expect(dummy).toBe(undefined)
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set.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 value = {}
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const set = reactive(new WeakSet())
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const setSpy = jest.fn(() => (dummy = set.has(value)))
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effect(setSpy)
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expect(dummy).toBe(false)
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expect(setSpy).toHaveBeenCalledTimes(1)
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set.add(value)
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expect(dummy).toBe(true)
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expect(setSpy).toHaveBeenCalledTimes(2)
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set.add(value)
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expect(dummy).toBe(true)
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expect(setSpy).toHaveBeenCalledTimes(2)
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set.delete(value)
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expect(dummy).toBe(false)
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expect(setSpy).toHaveBeenCalledTimes(3)
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set.delete(value)
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expect(dummy).toBe(false)
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expect(setSpy).toHaveBeenCalledTimes(3)
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})
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it('should not observe raw data', () => {
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const value = {}
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let dummy
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const set = reactive(new WeakSet())
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effect(() => (dummy = toRaw(set).has(value)))
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expect(dummy).toBe(false)
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set.add(value)
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expect(dummy).toBe(false)
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})
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it('should not be triggered by raw mutations', () => {
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const value = {}
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let dummy
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const set = reactive(new WeakSet())
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effect(() => (dummy = set.has(value)))
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expect(dummy).toBe(false)
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toRaw(set).add(value)
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expect(dummy).toBe(false)
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})
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it('should not pollute original Set with Proxies', () => {
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const set = new WeakSet()
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const observed = reactive(set)
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const value = reactive({})
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observed.add(value)
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expect(observed.has(value)).toBe(true)
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expect(set.has(value)).toBe(false)
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})
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})
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})
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