Include app/terminal/exit modules in coverage

tests/test_exit_poller.py

@@ -0,0 +1,65 @@
+import asyncio
+
+import pytest
+
+
+@pytest.mark.asyncio
+async def test_exit_poller_noop_when_idle_wait_zero(monkeypatch):
+    from textual_webterm import exit_poller
+    from textual_webterm.exit_poller import ExitPoller
+
+    monkeypatch.setattr(exit_poller, "EXIT_POLL_RATE", 0.01)
+
+    class FakeServer:
+        def __init__(self):
+            class SM:
+                def __init__(self):
+                    self.sessions = {}
+
+            self.session_manager = SM()
+            self.exited = False
+
+        def force_exit(self):
+            self.exited = True
+
+    server = FakeServer()
+    poller = ExitPoller(server, idle_wait=0)
+    poller.start()
+    await asyncio.sleep(0.05)
+    poller.stop()
+    assert server.exited is False
+
+
+@pytest.mark.asyncio
+async def test_exit_poller_resets_idle_timer_when_session_appears(monkeypatch):
+    from textual_webterm import exit_poller
+    from textual_webterm.exit_poller import ExitPoller
+
+    monkeypatch.setattr(exit_poller, "EXIT_POLL_RATE", 0.01)
+
+    class FakeServer:
+        def __init__(self):
+            class SM:
+                def __init__(self):
+                    self.sessions = {}
+
+            self.session_manager = SM()
+            self.exited = False
+
+        def force_exit(self):
+            self.exited = True
+
+    server = FakeServer()
+    poller = ExitPoller(server, idle_wait=0.05)
+    poller.start()
+
+    # Let it become idle briefly, then add a session to reset.
+    await asyncio.sleep(0.02)
+    server.session_manager.sessions["x"] = object()
+    await asyncio.sleep(0.02)
+    server.session_manager.sessions.clear()
+
+    # Now ensure it can still exit after being idle long enough.
+    await asyncio.sleep(0.1)
+    poller.stop()
+    assert server.exited is True