test: add test for importing itself inside __mocks__ folder

examples/mocks/package.json

@@ -19,7 +19,8 @@
   "devDependencies": {
     "@vitest/ui": "latest",
     "vite": "^2.9.5",
-    "vitest": "latest"
+    "vitest": "latest",
+    "zustand": "4.0.0-rc.1"
   },
   "stackblitz": {
     "startCommand": "npm run test:ui"

examples/mocks/src/zustand.ts

@@ -0,0 +1,14 @@
+import actualCreate from 'zustand'
+
+// a variable to hold reset functions for all stores declared in the app
+const storeResetFns = new Set()
+
+// when creating a store, we get its initial state, create a reset function and add it in the set
+const create = vi.fn((createState) => {
+  const store = actualCreate(createState)
+  const initialState = store.getState()
+  storeResetFns.add(() => store.setState(initialState, true))
+  return store
+})
+
+export default create

examples/mocks/test/self-importing.test.ts

@@ -0,0 +1,9 @@
+import zustand from 'zustand'
+
+vi.mock('zustand')
+
+describe('zustand didn\'t go into an infinite loop', () => {
+  test('zustand is mocked', () => {
+    expect(vi.isMockFunction(zustand)).toBe(true)
+  })
+})