refactor: rename reactivity package name and APIs

packages/reactivity/__tests__/collections/WeakMap.spec.ts

@@ -0,0 +1,108 @@
+import { state, effect, toRaw, isState } from '../../src'
+
+describe('observer/collections', () => {
+  describe('WeakMap', () => {
+    test('instanceof', () => {
+      const original = new WeakMap()
+      const observed = state(original)
+      expect(isState(observed)).toBe(true)
+      expect(original instanceof WeakMap).toBe(true)
+      expect(observed instanceof WeakMap).toBe(true)
+    })
+
+    it('should observe mutations', () => {
+      let dummy
+      const key = {}
+      const map = state(new WeakMap())
+      effect(() => {
+        dummy = map.get(key)
+      })
+
+      expect(dummy).toBe(undefined)
+      map.set(key, 'value')
+      expect(dummy).toBe('value')
+      map.set(key, 'value2')
+      expect(dummy).toBe('value2')
+      map.delete(key)
+      expect(dummy).toBe(undefined)
+    })
+
+    it('should not observe custom property mutations', () => {
+      let dummy
+      const map: any = state(new WeakMap())
+      effect(() => (dummy = map.customProp))
+
+      expect(dummy).toBe(undefined)
+      map.customProp = 'Hello World'
+      expect(dummy).toBe(undefined)
+    })
+
+    it('should not observe non value changing mutations', () => {
+      let dummy
+      const key = {}
+      const map = state(new WeakMap())
+      const mapSpy = jest.fn(() => (dummy = map.get(key)))
+      effect(mapSpy)
+
+      expect(dummy).toBe(undefined)
+      expect(mapSpy).toHaveBeenCalledTimes(1)
+      map.set(key, 'value')
+      expect(dummy).toBe('value')
+      expect(mapSpy).toHaveBeenCalledTimes(2)
+      map.set(key, 'value')
+      expect(dummy).toBe('value')
+      expect(mapSpy).toHaveBeenCalledTimes(2)
+      map.delete(key)
+      expect(dummy).toBe(undefined)
+      expect(mapSpy).toHaveBeenCalledTimes(3)
+      map.delete(key)
+      expect(dummy).toBe(undefined)
+      expect(mapSpy).toHaveBeenCalledTimes(3)
+    })
+
+    it('should not observe raw data', () => {
+      let dummy
+      const key = {}
+      const map = state(new WeakMap())
+      effect(() => (dummy = toRaw(map).get(key)))
+
+      expect(dummy).toBe(undefined)
+      map.set(key, 'Hello')
+      expect(dummy).toBe(undefined)
+      map.delete(key)
+      expect(dummy).toBe(undefined)
+    })
+
+    it('should not pollute original Map with Proxies', () => {
+      const map = new WeakMap()
+      const observed = state(map)
+      const key = {}
+      const value = state({})
+      observed.set(key, value)
+      expect(map.get(key)).not.toBe(value)
+      expect(map.get(key)).toBe(toRaw(value))
+    })
+
+    it('should return observable versions of contained values', () => {
+      const observed = state(new WeakMap())
+      const key = {}
+      const value = {}
+      observed.set(key, value)
+      const wrapped = observed.get(key)
+      expect(isState(wrapped)).toBe(true)
+      expect(toRaw(wrapped)).toBe(value)
+    })
+
+    it('should observed nested data', () => {
+      const observed = state(new Map())
+      const key = {}
+      observed.set(key, { a: 1 })
+      let dummy
+      effect(() => {
+        dummy = observed.get(key).a
+      })
+      observed.get(key).a = 2
+      expect(dummy).toBe(2)
+    })
+  })
+})