tests: Add a longer pause in TUI snapshot tests

We've seen test flakiness caused by the Textual tests for the Memray TUI
failing to completely resize the window to accommodate scroll bars at
the point where the snapshot is captured. This is a work around, not
a fix, but we should be able to make this scenario less likely to be
observed by guaranteeing that we sleep for some minimum amount of time.

Signed-off-by: Pablo Galindo <[email protected]>
Signed-off-by: Matt Wozniski <[email protected]>

Author: godlygeek

tests/unit/test_tui_reporter.py

@@ -116,6 +116,7 @@ async def run_before_wrapper(pilot) -> None:
                     await result
 
             await pilot.pause()
+            await pilot.pause(0.2)
             header = pilot.app.screen.query_one("Header")
             header.last_update = header.start + datetime.timedelta(seconds=42)