Fix more review comments

plugins/UM3NetworkPrinting/src/Cloud/CloudApiClient.py

@@ -11,7 +11,7 @@ from PyQt5.QtNetwork import QNetworkRequest, QNetworkReply, QNetworkAccessManage
 from UM.Logger import Logger
 from cura import UltimakerCloudAuthentication
 from cura.API import Account
-from .MeshUploader import MeshUploader
+from .ToolPathUploader import ToolPathUploader
 from ..Models import BaseModel
 from .Models.CloudClusterResponse import CloudClusterResponse
 from .Models.CloudError import CloudError
@@ -42,7 +42,7 @@ class CloudApiClient:
         self._manager = QNetworkAccessManager()
         self._account = account
         self._on_error = on_error
-        self._upload = None  # type: Optional[MeshUploader]
+        self._upload = None  # type: Optional[ToolPathUploader]
         # In order to avoid garbage collection we keep the callbacks in this list.
         self._anti_gc_callbacks = []  # type: List[Callable[[], None]]
 
@@ -84,7 +84,7 @@ class CloudApiClient:
     #  \param on_error: A function to be called if the upload fails.
     def uploadToolPath(self, print_job: CloudPrintJobResponse, mesh: bytes, on_finished: Callable[[], Any],
                        on_progress: Callable[[int], Any], on_error: Callable[[], Any]):
-        self._upload = MeshUploader(self._manager, print_job, mesh, on_finished, on_progress, on_error)
+        self._upload = ToolPathUploader(self._manager, print_job, mesh, on_finished, on_progress, on_error)
         self._upload.start()
 
     # Requests a cluster to print the given print job.

plugins/UM3NetworkPrinting/src/Cloud/CloudOutputDevice.py

@@ -100,6 +100,8 @@ class CloudOutputDevice(NetworkedPrinterOutputDevice):
 
     ## Connects this device.
     def connect(self) -> None:
+        if self.isConnected():
+            return
         super().connect()
         Logger.log("i", "Connected to cluster %s", self.key)
         CuraApplication.getInstance().getBackend().backendStateChange.connect(self._onBackendStateChange)

plugins/UM3NetworkPrinting/src/Cloud/CloudOutputDeviceManager.py

@@ -131,8 +131,7 @@ class CloudOutputDeviceManager:
 
     ## Connects to an output device and makes sure it is registered in the output device manager.
     def _connectToOutputDevice(self, device: CloudOutputDevice) -> None:
-        if not device.isConnected():
+        device.connect()
-            device.connect()
         self._output_device_manager.addOutputDevice(device)
 
     ## Handles an API error received from the cloud.

plugins/UM3NetworkPrinting/src/Cloud/ToolPathUploader.py

@@ -10,7 +10,7 @@ from .Models.CloudPrintJobResponse import CloudPrintJobResponse
 
 
 ## Class responsible for uploading meshes to the cloud in separate requests.
-class MeshUploader:
+class ToolPathUploader:
 
     # The maximum amount of times to retry if the server returns one of the RETRY_HTTP_CODES
     MAX_RETRIES = 10

plugins/UM3NetworkPrinting/tests/Cloud/TestCloudOutputDeviceManager.py

@@ -125,5 +125,4 @@ class TestCloudOutputDeviceManager(TestCase):
         }
         self.network.prepareReply("GET", self.URL, 200, self.clusters_response)
         self._loadData()
-        message_mock.assert_called_once_with(text='Not found!', title='Error', lifetime=10, dismissable=True)
         message_mock.return_value.show.assert_called_once_with()