Make recorder and dashboard regression tests deterministic

electron/native/ScreenCaptureKitRecorder.lifecycle.test.ts

@@ -20,10 +20,15 @@ describe.skipIf(process.platform !== "darwin")("recorder process lifecycle", ()
 			source.indexOf("final class RecorderService"),
 			source.indexOf("guard CommandLine.arguments.count"),
 		);
-		const commands = source.slice(
-			source.indexOf("let service = RecorderService()"),
-			source.indexOf("if !service.waitUntilFinished()"),
-		);
+		const commands = source
+			.slice(
+				source.indexOf("let service = RecorderService()"),
+				source.indexOf("if !service.waitUntilFinished()"),
+			)
+			.replace(
+				"service.stop()",
+				"service.stop()\n\tservice.drainCommandsForTest()\n\tcommandsFinished.signal()",
+			);
 		writeFileSync(
 			join(directory, "main.swift"),
 			`
@@ -47,10 +52,14 @@ final class ScreenCaptureRecorder {
     func resumeCapture() async -> Bool { true }
 }
 ${service}
+extension RecorderService {
+    func drainCommandsForTest() { queue.sync {} }
+}
+let commandsFinished = DispatchSemaphore(value: 0)
 ${commands}
 let success = service.waitUntilFinished()
-// Keep the process alive long enough to expose a queued second group release.
-Thread.sleep(forTimeInterval: 0.2)
+// Wait for the reader to enqueue stop AND for the serialized operations to finish.
+commandsFinished.wait()
 exit(success ? 0 : 1)
 `,
 		);

tests/ui/project-dashboard.spec.ts

@@ -2,7 +2,7 @@ import fs from "node:fs/promises";
 import path from "node:path";
 import { hasFreshProjectThumbnail } from "../../electron/ipc/project/thumbnailFreshness";
 import { expect, test } from "@playwright/test";
-import { installDesktopBridge } from "./bridge";
+import { installDesktopBridge, installDesktopBridgeOverrides } from "./bridge";
 
 test("home dashboard searches, sorts, opens projects and returns to the editor", async ({
 	page,
@@ -746,7 +746,7 @@ test("sidebar cards, separate Import, and shortcut settings use the dashboard fl
 
 test("empty filtered libraries do not prompt for a first recording", async ({ page }) => {
 	await installDesktopBridge(page);
-	await page.addInitScript(() => {
+	await installDesktopBridgeOverrides(page, () => {
 		window.electronAPI.getCurrentVideoPath = async () => ({ success: false });
 	});
 	await page.goto("/?windowType=editor");