Refactor alert dialog tests and update fixtures

Merged alert dialog body test into test_alert_dialog.py and removed test_alert_dialog_body.py. Updated screenshot assets and renamed files for consistency. Enhanced conftest.py with reusable app creation and added function-scoped fixture for tests. Added docstring to close_in_app_web_view method in url_launcher.py.

Author: FeodorFitsner

sdk/python/packages/flet/integration_tests/conftest.py

@@ -5,15 +5,27 @@
 import flet.testing as ftt
 
 
-@pytest_asyncio.fixture(scope="module")
-async def flet_app(request):
+def create_flet_app(request):
     params = getattr(request, "param", {})
-    flet_app = ftt.FletTestApp(
+    return ftt.FletTestApp(
         flutter_app_dir=(Path(__file__).parent / "../../../../../client").resolve(),
         test_path=request.fspath,
         flet_app_main=params.get("flet_app_main"),
         assets_dir=Path(__file__).resolve().parent / "assets",
     )
+
+
+@pytest_asyncio.fixture(scope="module")
+async def flet_app(request):
+    flet_app = create_flet_app(request)
+    await flet_app.start()
+    yield flet_app
+    await flet_app.teardown()
+
+
+@pytest_asyncio.fixture(scope="function")
+async def flet_app_function(request):
+    flet_app = create_flet_app(request)
     await flet_app.start()
     yield flet_app
     await flet_app.teardown()

sdk/python/packages/flet/integration_tests/controls/golden/macos/alert_dialog/alert_dialog_basic.png

@@ -1,10 +1,19 @@
+import asyncio
+
 import pytest
+import pytest_asyncio
 
 import flet as ft
 import flet.testing as ftt
 
 
-@pytest.mark.asyncio(loop_scope="module")
+# Create a new flet_app instance for each test method
+@pytest_asyncio.fixture(scope="function", autouse=True)
+def flet_app(flet_app_function):
+    return flet_app_function
+
+
+@pytest.mark.asyncio(loop_scope="function")
 async def test_alert_dialog_basic(flet_app: ftt.FletTestApp, request):
     flet_app.page.theme_mode = ft.ThemeMode.LIGHT
     ad = ft.AlertDialog(
@@ -28,3 +37,54 @@ async def test_alert_dialog_basic(flet_app: ftt.FletTestApp, request):
             pixel_ratio=flet_app.screenshots_pixel_ratio
         ),
     )
+
+
+@pytest.mark.asyncio(loop_scope="function")
+async def test_update_body(flet_app: ftt.FletTestApp, request):
+    flet_app.page.theme_mode = ft.ThemeMode.LIGHT
+    ad = ft.AlertDialog(
+        key="ad",
+        title=ft.Text("Test"),
+        bgcolor=ft.Colors.YELLOW,
+        actions_alignment=ft.MainAxisAlignment.END,
+        actions=[
+            ok := ft.TextButton(
+                "OK",
+                visible=True,
+            ),
+            cancel := ft.TextButton(
+                "Cancel",
+                visible=True,
+            ),
+        ],
+    )
+    flet_app.page.enable_screenshots = True
+    flet_app.page.window.width = 400
+    flet_app.page.window.height = 600
+    flet_app.page.show_dialog(ad)
+    flet_app.page.update()
+    await flet_app.tester.pump_and_settle()
+    assert (await flet_app.tester.find_by_text("OK")).count == 1
+
+    flet_app.assert_screenshot(
+        "update_body_1",
+        await flet_app.page.take_screenshot(
+            pixel_ratio=flet_app.screenshots_pixel_ratio
+        ),
+    )
+
+    # change dialog color and hide "OK" button
+    await asyncio.sleep(1)
+    ad.bgcolor = ft.Colors.RED
+    ok.visible = not ok.visible  # hide button
+    cancel.disabled = not cancel.disabled  # disable button
+    flet_app.page.update()
+    await flet_app.tester.pump_and_settle()
+    assert (await flet_app.tester.find_by_text("OK")).count == 0
+
+    flet_app.assert_screenshot(
+        "update_body_2",
+        await flet_app.page.take_screenshot(
+            pixel_ratio=flet_app.screenshots_pixel_ratio
+        ),
+    )

sdk/python/packages/flet/integration_tests/controls/golden/macos/alert_dialog_body/update_body_1.png renamed to sdk/python/packages/flet/integration_tests/controls/golden/macos/alert_dialog/update_body_1.png

@@ -65,4 +65,10 @@ async def can_launch_url(self, url: Union[str, Url]) -> bool:
         )
 
     async def close_in_app_web_view(self) -> None:
+        """
+        Closes the in-app web view if it is currently open.
+
+        This method invokes the platform-specific functionality to close
+        any web view that was previously opened within the application.
+        """
         await self._invoke_method("close_in_app_web_view")