feat: discover and add connected iOS devices

apps/device-host-agent/tests/test_web_app.py

@@ -314,6 +314,75 @@ def test_device_screenshot_requires_csrf_and_connected_device(tmp_path) -> None:
     assert offline.status_code == 503
 
 
+def test_device_connection_test_connects_checks_health_and_disconnects(
+    tmp_path, monkeypatch
+) -> None:
+    events: list[str] = []
+
+    class ProbeDriver:
+        def connect(self) -> None:
+            events.append("connect")
+
+        def health_check(self) -> None:
+            events.append("health")
+
+        def disconnect(self) -> None:
+            events.append("disconnect")
+
+    def factory(driver_type, connection_info):
+        assert driver_type == "wda"
+        assert connection_info["udid"] == "ios-udid"
+        return ProbeDriver
+
+    monkeypatch.setattr("host_agent.web.app.build_driver_factory", factory)
+    client, context = _build_client(tmp_path)
+    csrf_token = _login(client)
+
+    response = client.post(
+        "/api/devices/test-connection",
+        json={"driver_type": "wda", "connection_info": {"udid": "ios-udid"}},
+        headers={"X-CSRF-Token": csrf_token},
+    )
+
+    assert response.status_code == 200
+    assert response.json() == {"ok": True, "driver_type": "wda"}
+    assert events == ["connect", "health", "disconnect"]
+    assert context["config_store"].list() == []
+
+
+def test_ios_discovery_returns_connected_devices_and_unique_ports(
+    tmp_path, monkeypatch
+) -> None:
+    monkeypatch.setattr(
+        "host_agent.web.app.discover_connected_ios_devices",
+        lambda: [
+            {
+                "udid": "ios-new",
+                "name": "New iPhone",
+                "model": "iPhone 15",
+                "os_version": "18.0",
+                "transport": "wired",
+            }
+        ],
+    )
+    client, context = _build_client(tmp_path)
+    context["config_store"].add(
+        device_id="existing",
+        driver_type="wda",
+        connection_info={"udid": "ios-old", "wda_local_port": 8100, "mjpegServerPort": 9100},
+    )
+    _login(client)
+
+    response = client.get("/api/devices/discover-ios")
+
+    assert response.status_code == 200
+    device = response.json()["devices"][0]
+    assert device["udid"] == "ios-new"
+    assert device["configured"] is False
+    assert device["suggested_wda_port"] == 8101
+    assert device["suggested_mjpeg_port"] == 9101
+
+
 def test_remove_device_unregisters_from_manager(tmp_path) -> None:
     client, context = _build_client(tmp_path)
     csrf_token = _login(client)