From df67f2140337310b44c69bb5410268c9a3760b31 Mon Sep 17 00:00:00 2001
From: "paseo-bot[bot]" <266920839+paseo-bot[bot]@users.noreply.github.com>
Date: Wed, 4 Nov 2026 11:31:58 +0000
Subject: [PATCH] test(terminal): reproduce missing mouse reports on initial
 attach

A raw-input terminal enables SGR mouse reporting before the web client attaches. A trusted finger drag should reach its stdin, as it does when the same mode is enabled after attachment, but no report arrives. This diagnostic intentionally remains red; it changes no production behavior.
---
 .../app/e2e/browser/terminal-find.spec.ts     | 33 +++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/packages/app/e2e/browser/terminal-find.spec.ts b/packages/app/e2e/browser/terminal-find.spec.ts
index 6e83f095b2..80a7527c7f 100644
--- a/packages/app/e2e/browser/terminal-find.spec.ts
+++ b/packages/app/e2e/browser/terminal-find.spec.ts
@@ -627,3 +627,36 @@ async function dragTerminalWithFinger(
     }
   });
 }
+
+// Diagnostic-only: application modes emitted before the first attachment.
+// The existing live-mode tests above are the control for this failure.
+test.describe("mouse mode enabled before terminal attachment", () => {
+  test.use({ isMobile: true, hasTouch: true, viewport: { width: 390, height: 844 } });
+
+  test("preserves SGR wheel reports when opening a running terminal", async ({ page }) => {
+    await openPreAttachedMouseCapture(page);
+    await expectFingerNavigationInput(page, "mouse");
+  });
+});
+
+async function openPreAttachedMouseCapture(page: Page) {
+  await harness.createTerminal({
+    name: "Mouse mode before attachment",
+    command: process.execPath,
+    args: [
+      "-e",
+      `
+      process.stdin.setRawMode(true);
+      process.stdin.on("data", chunk => {
+        process.stdout.write("\\r\\nTOUCH_BYTES:" + chunk.toString("hex") + ":END\\r\\n");
+      });
+      process.stdout.write("\\x1b[?1000h\\x1b[?1006hTOUCH_INPUT_READY\\r\\n");
+    `,
+    ],
+  });
+  await openPhoneTerminal(page);
+  await expect.poll(() => getTerminalBufferText(page)).toContain("TOUCH_INPUT_READY");
+  await expect
+    .poll(() => page.evaluate(() => window.__paseoTerminal!.modes.mouseTrackingMode))
+    .toBe("vt200");
+}