1 files changed, 37 insertions, 0 deletions
diff --git a/testing/web-platform/tests/webdriver/tests/interop/frames.py b/testing/web-platform/tests/webdriver/tests/interop/frames.py
new file mode 100644
index 0000000000..b2cafb4987
--- /dev/null
+++ b/testing/web-platform/tests/webdriver/tests/interop/frames.py
@@ -0,0 +1,37 @@
+import pytest
+from webdriver.error import NoSuchWindowException
+
+from tests.support.sync import AsyncPoll
+
+pytestmark = pytest.mark.asyncio
+
+
+async def test_classic_switch_to_parent_no_browsing_context(bidi_session, current_session, url):
+    # With WebDriver classic it cannot be checked if the parent frame is already
+    # gone before switching to it. To prevent race conditions such a check needs
+    # to be done via WebDriver BiDi.
+    current_session.url = url("/webdriver/tests/support/html/frames.html")
+
+    subframe = current_session.find.css("#sub-frame", all=False)
+    current_session.switch_frame(subframe)
+
+    deleteframe = current_session.find.css("#delete-frame", all=False)
+    current_session.switch_frame(deleteframe)
+
+    button = current_session.find.css("#remove-top", all=False)
+    button.click()
+
+    async def is_frame_removed(_):
+        contexts = await bidi_session.browsing_context.get_tree(root=current_session.window_handle)
+        return not contexts[0]["children"]
+
+    # Wait until IFrame is gone.
+    wait = AsyncPoll(
+        current_session,
+        timeout=5,
+        message="IFrame that should be closed is still open",
+    )
+    await wait.until(is_frame_removed)
+
+    with pytest.raises(NoSuchWindowException):
+        current_session.switch_frame("parent")