Keep session manager open on launch failure

tests/test_selector.py

@@ -316,6 +316,55 @@ class SelectorCatalogTests(unittest.TestCase):
 
 
 class SelectorActionTests(unittest.TestCase):
+    def test_open_failure_stays_in_context_and_retry_can_succeed(self) -> None:
+        with tempfile.TemporaryDirectory() as directory:
+            attempts: list[SelectorResult] = []
+
+            def activate(result: SelectorResult) -> None:
+                attempts.append(result)
+                if len(attempts) == 1:
+                    raise RuntimeError(
+                        "Bad owner or permissions on /etc/ssh/ssh_config"
+                    )
+
+            selector = SessionSelector(
+                [
+                    CatalogWindow(
+                        "@1",
+                        "remote:pi:default",
+                        "pi",
+                        True,
+                        False,
+                        kind="remote",
+                        target="pi",
+                        session="default",
+                    )
+                ],
+                RemoteRegistry(Path(directory) / "remotes.json"),
+                "/missing/ssh",
+                activate_handler=activate,
+            )
+            self.addCleanup(selector.pool.close)
+            row = next(
+                item
+                for item in selector._rows()  # type: ignore[attr-defined]
+                if item.key == "window:@1"
+            )
+
+            self.assertIsNone(selector._activate(row))  # type: ignore[attr-defined]
+            self.assertEqual(selector.view, "actions")
+            self.assertIn("打开失败", selector.message)
+            self.assertIn("ssh_config", selector.context_row.error)
+            retry = next(
+                item
+                for item in selector._rows()  # type: ignore[attr-defined]
+                if item.kind == "action-window"
+            )
+            self.assertEqual(selector.selected_key, retry.key)
+
+            self.assertFalse(selector._activate(retry))  # type: ignore[attr-defined]
+            self.assertEqual(len(attempts), 2)
+
     def test_search_is_explicit_and_escape_preserves_selection(self) -> None:
         with tempfile.TemporaryDirectory() as directory:
             window = CatalogWindow(

tests/test_tmux_integration.py

@@ -28,7 +28,8 @@ class TmuxIntegrationTests(unittest.TestCase):
         self.fake_herdr.write_text(
             "#!/bin/sh\n"
             "if [ \"${1:-}\" = \"--session\" ] && [ \"${2:-}\" = \"dead\" ]; then\n"
-            "  exit 0\n"
+            "  printf '%s\\n' 'fake startup failure' >&2\n"
+            "  exit 7\n"
             "fi\n"
             "exec sleep 30\n",
             encoding="utf-8",
@@ -219,6 +220,20 @@ class TmuxIntegrationTests(unittest.TestCase):
         self.hub.reconnect(window.window_id)
         self.assertIsNotNone(self.hub.window_for_key("local:dead"))
 
+    def test_startup_verification_reports_immediate_process_failure(self) -> None:
+        self.hub.ensure_server()
+        with self.assertRaisesRegex(HubError, "fake startup failure"):
+            self.hub.activate_endpoint(
+                Endpoint.local("dead"),
+                str(self.fake_herdr),
+                verify_startup=True,
+            )
+
+        failed = self.hub.window_for_key("local:dead")
+        self.assertIsNotNone(failed)
+        assert failed is not None
+        self.assertTrue(failed.dead)
+
     def test_alias_is_applied_immediately_and_can_be_reset(self) -> None:
         self.hub.aliases["remote:orangepi:work"] = "客厅开发"
         self.hub.ensure_server()