Restart e2e test (#306)

e2e-tests/helpers/test_helper.ts

@@ -54,13 +54,19 @@ class PageObject {
     await this.page.getByRole("button", { name: "Restart" }).click();
   }
 
+  locateLoadingAppPreview() {
+    return this.page.getByText("Loading app preview...");
+  }
+
   getPreviewIframeElement() {
     return this.page.getByTestId("preview-iframe-element");
   }
 
   async snapshotPreview() {
     const iframe = this.getPreviewIframeElement();
-    await expect(iframe.contentFrame().locator("body")).toMatchAriaSnapshot();
+    await expect(iframe.contentFrame().locator("body")).toMatchAriaSnapshot({
+      timeout: 15_000,
+    });
   }
 
   async snapshotServerDump({

e2e-tests/restart.spec.ts

+import { test } from "./helpers/test_helper";
+import { expect } from "@playwright/test";
+
+test("restart app", async ({ po }) => {
+  await po.setUp({ autoApprove: true });
+  await po.sendPrompt("hi");
+
+  await po.clickRestart();
+  await expect(po.locateLoadingAppPreview()).toBeVisible();
+  await expect(po.locateLoadingAppPreview()).not.toBeVisible({
+    timeout: 15_000,
+  });
+
+  await po.snapshotPreview();
+});

e2e-tests/snapshots/restart.spec.ts_restart-app-1.aria.yml

+- region "Notifications (F8)":
+  - list
+- region "Notifications alt+T"
+- heading "Welcome to Your Blank App" [level=1]
+- paragraph: Start building your amazing project here!
+- link "Made with Dyad":
+  - /url: https://www.dyad.sh/
\ No newline at end of file