diff --git a/examples/web-worker/e2e/basic.test.ts b/examples/web-worker/e2e/basic.test.ts
index 09221dc..e99494f 100644
--- a/examples/web-worker/e2e/basic.test.ts
+++ b/examples/web-worker/e2e/basic.test.ts
@@ -1,4 +1,5 @@
 import { expect, test } from "@playwright/test";
+import { createEditor } from "./helper";
 
 test("basic", async ({ page }) => {
   await page.goto("/");
@@ -23,3 +24,11 @@ test("worker in worker", async ({ page }) => {
     "Rendered in web worker in web worker",
   );
 });
+
+test("reload worker change @dev", async ({ page }) => {
+  await page.goto("/");
+  await expect(page.getByTestId("worker-message")).toContainText("dep-ok");
+  using file = createEditor("./src/worker/dep.tsx");
+  file.edit((s) => s.replace(`"dep-ok"`, `"dep-edit-ok"`));
+  await expect(page.getByTestId("worker-message")).toContainText("dep-edit-ok");
+});
diff --git a/examples/web-worker/e2e/helper.ts b/examples/web-worker/e2e/helper.ts
new file mode 100644
index 0000000..e804b90
--- /dev/null
+++ b/examples/web-worker/e2e/helper.ts
@@ -0,0 +1,15 @@
+import fs from "node:fs";
+
+export function createEditor(filepath: string) {
+  let init = fs.readFileSync(filepath, "utf-8");
+  let data = init;
+  return {
+    edit(editFn: (data: string) => string) {
+      data = editFn(data);
+      fs.writeFileSync(filepath, data);
+    },
+    [Symbol.dispose]() {
+      fs.writeFileSync(filepath, init);
+    },
+  };
+}
diff --git a/examples/web-worker/playwright.config.ts b/examples/web-worker/playwright.config.ts
index 51ebbc7..056e6d4 100644
--- a/examples/web-worker/playwright.config.ts
+++ b/examples/web-worker/playwright.config.ts
@@ -1,7 +1,8 @@
 import { defineConfig, devices } from "@playwright/test";
 
 const port = Number(process.env["E2E_PORT"] || 6174);
-const command = process.env["E2E_PREVIEW"]
+const isPreview = Boolean(process.env["E2E_PREVIEW"]);
+const command = isPreview
   ? `pnpm preview --port ${port} --strict-port`
   : `pnpm dev --port ${port} --strict-port`;
 
@@ -20,6 +21,7 @@ export default defineConfig({
     command,
     port,
   },
+  grepInvert: isPreview ? /@dev/ : /@build/,
   forbidOnly: !!process.env["CI"],
   retries: process.env["CI"] ? 2 : 0,
   reporter: "list",