fixup to get ready for testbed

Author: johnzhou721

qt/pyproject.toml

@@ -7,7 +7,7 @@ requires = [
 build-backend = "setuptools.build_meta"
 
 [project]
-dynamic = ["version"]
+dynamic = ["version", "dependencies"]
 name = "toga-qt"
 description = "An Qt (KDE) backend for the Toga widget toolkit."
 readme = "README.rst"

testbed/src/testbed/app.py

@@ -1,10 +1,6 @@
-import importlib
-import importlib.util
-import sys
 from unittest.mock import Mock
 
 import toga
-from toga.platform import current_platform
 
 
 class ExampleDoc(toga.Document):
@@ -63,16 +59,6 @@ def task_factory(loop, coro, **kwargs):
 
         self.loop.set_task_factory(task_factory)
 
-        # Toga's Qt backend is packaged the same as GTK Linux; substitute
-        # the Qt backend tests if running on Qt.
-        if current_platform == "linux-qt":
-            spec = importlib.util.find_spec("tests_backend_qt")
-            if spec is None:
-                raise FileNotFoundError("Could not find Qt backend tests")
-            qt_module = importlib.import_module("tests_backend_qt")
-
-            sys.modules["tests_backend"] = qt_module
-
         # Set a default return code for the app, so that a value is
         # available if the app exits for a reason other than the test
         # suite exiting/crashing.

testbed/tests/conftest.py

@@ -1,6 +1,9 @@
 import asyncio
 import gc
+import importlib
+import importlib.util
 import inspect
+import sys
 from dataclasses import dataclass
 from importlib import import_module
 
@@ -9,6 +12,7 @@
 import toga
 from toga.colors import GOLDENROD
 from toga.constants import WindowState
+from toga.platform import current_platform
 from toga.style import Pack
 
 # Ideally, we'd register rewrites for "tests" and get all the submodules
@@ -17,6 +21,16 @@
 register_assert_rewrite("tests.widgets")
 register_assert_rewrite("tests_backend")
 
+# Toga's Qt backend is packaged the same as GTK Linux; substitute
+# the Qt backend tests if running on Qt.
+if current_platform == "linux-qt":
+    spec = importlib.util.find_spec("tests_backend_qt")
+    if spec is None:
+        raise FileNotFoundError("Could not find Qt backend tests")
+    qt_module = importlib.import_module("tests_backend_qt")
+
+    sys.modules["tests_backend"] = qt_module
+
 
 # Use this for widgets or tests which are not supported on some platforms,
 # but could be supported in the future.