vitest support check

VITEST.md

@@ -0,0 +1 @@
+time TEST_RUNNER_PATH="node_modules/.bin/vitest" TEST_RUNNER_ARGS="--poolOptions.threads.singleThread=true --maxConcurrency=1 --watch=false --pool=threads" yarn reassure --verbose

examples/web-vite/src/TestList.tsx

@@ -1,3 +1,5 @@
+import React from 'react';
+
 interface TestListProps {
   count: number;
 }
@@ -19,11 +21,11 @@ interface ListItemProps {
 }
 
 const ListItem = ({ title }: ListItemProps) => {
-  // Uncomment to introduce a performance issue
-  // const [, forceRender] = React.useState<object>();
-  // React.useEffect(() => {
-  //   forceRender({});
-  // }, [title]);
+  // Intentionally causing an extra re-render
+  const [, forceRender] = React.useState<object>();
+  React.useEffect(() => {
+    forceRender({});
+  }, [title]);
 
   return (
     <div>

examples/web-vite/test-setup.ts

@@ -0,0 +1,6 @@
+import { afterEach } from 'vitest';
+import { cleanup } from '@testing-library/react';
+
+afterEach(() => {
+  cleanup();
+});

examples/web-vite/vite.config.ts

@@ -1,7 +1,27 @@
-import { defineConfig } from 'vite'
-import react from '@vitejs/plugin-react'
+import { defineConfig } from 'vite';
+import react from '@vitejs/plugin-react';
 
 // https://vitejs.dev/config/
 export default defineConfig({
   plugins: [react()],
-})
+  test: {
+    workspace: [
+      {
+        test: {
+          name: 'test',
+          include: ['**/__tests__/*.{ts,js}', '**/*.test.{ts,tsx,js,jsx}'],
+          environment: 'jsdom',
+        },
+      },
+      {
+        test: {
+          name: 'perf',
+          include: ['**/__perf__/*.{ts,js}', '**/*.perf.{ts,tsx,js,jsx}'],
+          environment: 'jsdom',
+        },
+      },
+    ],
+    environment: 'jsdom', // Use jsdom for DOM-related tests
+    setupFiles: ['./test-setup.ts'],
+  },
+});