Fix tests on windows, maybe.

Author: lyovushka

tests/conftest.py

@@ -5,11 +5,12 @@
 with unittest.mock.patch("sys.__stdout__", None):
     import textual_image.renderable
 import textual_image._terminal
-import textual_image.widget
 
 # Hardcode the cell size - it throws on windows.
 setattr(textual_image._terminal.get_cell_size, "_result", textual_image._terminal.CellSize(10, 20))
 
+import textual_image.widget
+
 import netbook
 
 import nbformat

tests/test_cell.py

@@ -51,6 +51,7 @@ async def test_output_scroll_collapse(pilot_nb):
 
 async def test_run_cell(pilot, mocker):
     app: netbook.JupyterTextualApp = pilot.app
+    await pilot.pause()
     poller = mocker.patch("zmq.asyncio.Poller")
     poller.return_value.poll = mocker.AsyncMock(return_value={app.kernel_client.iopub_channel.socket: 1})
     app.kernel_client.execute.return_value = "id1"