test: update test syntax

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

@@ -14,8 +14,8 @@ describe('reactivity/collections', () => {
       const original = new Map()
       const observed = reactive(original)
       expect(isReactive(observed)).toBe(true)
-      expect(original instanceof Map).toBe(true)
-      expect(observed instanceof Map).toBe(true)
+      expect(original).toBeInstanceOf(Map)
+      expect(observed).toBeInstanceOf(Map)
     })
 
     it('should observe mutations', () => {

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

@@ -14,8 +14,8 @@ describe('reactivity/collections', () => {
       const original = new Set()
       const observed = reactive(original)
       expect(isReactive(observed)).toBe(true)
-      expect(original instanceof Set).toBe(true)
-      expect(observed instanceof Set).toBe(true)
+      expect(original).toBeInstanceOf(Set)
+      expect(observed).toBeInstanceOf(Set)
     })
 
     it('should observe mutations', () => {

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

@@ -7,8 +7,8 @@ describe('reactivity/collections', () => {
       const original = new WeakMap()
       const observed = reactive(original)
       expect(isReactive(observed)).toBe(true)
-      expect(original instanceof WeakMap).toBe(true)
-      expect(observed instanceof WeakMap).toBe(true)
+      expect(original).toBeInstanceOf(WeakMap)
+      expect(observed).toBeInstanceOf(WeakMap)
     })
 
     it('should observe mutations', () => {

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

@@ -7,8 +7,8 @@ describe('reactivity/collections', () => {
       const original = new WeakSet()
       const observed = reactive(original)
       expect(isReactive(observed)).toBe(true)
-      expect(original instanceof WeakSet).toBe(true)
-      expect(observed instanceof WeakSet).toBe(true)
+      expect(original).toBeInstanceOf(WeakSet)
+      expect(observed).toBeInstanceOf(WeakSet)
     })
 
     it('should observe mutations', () => {

packages/reactivity/__tests__/reactive.spec.ts

@@ -50,7 +50,7 @@ describe('reactivity/reactive', () => {
     class CustomMap extends Map {}
     const cmap = reactive(new CustomMap())
 
-    expect(cmap instanceof Map).toBe(true)
+    expect(cmap).toBeInstanceOf(Map)
     expect(isReactive(cmap)).toBe(true)
 
     cmap.set('key', {})
@@ -60,7 +60,7 @@ describe('reactivity/reactive', () => {
     class CustomSet extends Set {}
     const cset = reactive(new CustomSet())
 
-    expect(cset instanceof Set).toBe(true)
+    expect(cset).toBeInstanceOf(Set)
     expect(isReactive(cset)).toBe(true)
 
     let dummy
@@ -77,7 +77,7 @@ describe('reactivity/reactive', () => {
     class CustomMap extends WeakMap {}
     const cmap = reactive(new CustomMap())
 
-    expect(cmap instanceof WeakMap).toBe(true)
+    expect(cmap).toBeInstanceOf(WeakMap)
     expect(isReactive(cmap)).toBe(true)
 
     const key = {}
@@ -88,7 +88,7 @@ describe('reactivity/reactive', () => {
     class CustomSet extends WeakSet {}
     const cset = reactive(new CustomSet())
 
-    expect(cset instanceof WeakSet).toBe(true)
+    expect(cset).toBeInstanceOf(WeakSet)
     expect(isReactive(cset)).toBe(true)
 
     let dummy

packages/runtime-dom/__tests__/createApp.spec.ts

@@ -11,7 +11,7 @@ describe('createApp for dom', () => {
       }
     }).mount(root)
     expect(root.children.length).toBe(1)
-    expect(root.children[0] instanceof SVGElement).toBe(true)
+    expect(root.children[0]).toBeInstanceOf(SVGElement)
   })
 
   // #4398

packages/vue-compat/__tests__/filters.spec.ts

@@ -116,7 +116,7 @@ describe('FILTERS', () => {
         }
       }
     }).$mount() as any
-    expect(vm.$refs.test.pattern instanceof RegExp).toBe(true)
+    expect(vm.$refs.test.pattern).toBeInstanceOf(RegExp)
     expect(vm.$refs.test.pattern.toString()).toBe('/a|b\\//')
     expect(CompilerDeprecationTypes.COMPILER_FILTERS).toHaveBeenWarned()
   })