feat(vitest): add vitest cleanup export

package.json

@@ -7,6 +7,9 @@
     ".": {
       "types": "./types/index.d.ts",
       "default": "./src/index.js"
+    },
+    "./vitest": {
+      "default": "./src/vitest.js"
     }
   },
   "type": "module",
@@ -43,9 +46,9 @@
     "toc": "doctoc README.md",
     "lint": "(prettier . --check || true) && eslint .",
     "format": "prettier . --write && eslint . --fix",
-    "test": "vitest run src",
-    "test:watch": "npm run test -- --watch",
-    "test:update": "npm run test -- --updateSnapshot --coverage",
+    "test": "vitest run --coverage",
+    "test:watch": "vitest",
+    "test:update": "vitest run --update",
     "setup": "npm install && npm run validate",
     "validate": "npm-run-all lint test",
     "contributors:add": "all-contributors add",
@@ -61,10 +64,10 @@
     "@commitlint/cli": "^17.6.6",
     "@commitlint/config-conventional": "^17.6.6",
     "@sveltejs/vite-plugin-svelte": "^2.4.2",
-    "@testing-library/jest-dom": "^5.16.5",
+    "@testing-library/jest-dom": "^6.3.0",
     "@typescript-eslint/eslint-plugin": "^6.19.1",
     "@typescript-eslint/parser": "^6.19.1",
-    "@vitest/coverage-c8": "^0.33.0",
+    "@vitest/coverage-v8": "^0.33.0",
     "all-contributors-cli": "^6.26.0",
     "doctoc": "^2.2.1",
     "eslint": "^8.43.0",

src/__tests__/_vitest-setup.js

@@ -0,0 +1,2 @@
+import '@testing-library/jest-dom/vitest'
+import '../vitest'

src/vitest.js

@@ -0,0 +1,8 @@
+import { afterEach } from 'vitest'
+
+import { act, cleanup } from './pure.js'
+
+afterEach(async () => {
+  await act()
+  cleanup()
+})

vite.config.js

@@ -3,9 +3,13 @@ import { defineConfig } from 'vite'
 
 // https://vitejs.dev/config/
 export default defineConfig({
-    plugins: [svelte()],
-    test: {
-        environment: 'jsdom',
-        setupFiles: ['./src/test-setup.js'],
+  plugins: [svelte()],
+  test: {
+    environment: 'jsdom',
+    setupFiles: ['./src/__tests__/_vitest-setup.js'],
+    coverage: {
+      provider: 'v8',
+      include: ['src'],
     },
+  },
 })