1 files changed, 35 insertions, 1 deletions
diff --git a/testing/web-platform/tests/webdriver/tests/bidi/network/add_intercept/invalid.py b/testing/web-platform/tests/webdriver/tests/bidi/network/add_intercept/invalid.py
index ac7b273854..0821ba7782 100644
--- a/testing/web-platform/tests/webdriver/tests/bidi/network/add_intercept/invalid.py
+++ b/testing/web-platform/tests/webdriver/tests/bidi/network/add_intercept/invalid.py
@@ -147,7 +147,8 @@ async def test_params_url_patterns_pattern_protocol_file_invalid_value(bidi_sess
     with pytest.raises(error.InvalidArgumentException):
         await bidi_session.network.add_intercept(
             phases=["beforeRequestSent"],
-            url_patterns=[{"type": "pattern", "protocol": value, "hostname": "example.com"}],
+            url_patterns=[
+                {"type": "pattern", "protocol": value, "hostname": "example.com"}],
         )
 
 
@@ -185,3 +186,36 @@ async def test_params_url_patterns_pattern_search_invalid_value(bidi_session, va
             phases=["beforeRequestSent"],
             url_patterns=[{"type": "pattern", "search": value}],
         )
+
+
+@pytest.mark.parametrize("value", [False, 42, {}, ""])
+async def test_params_contexts_invalid_type(bidi_session, value):
+    with pytest.raises(error.InvalidArgumentException):
+        await bidi_session.network.add_intercept(phases=["beforeRequestSent"], contexts=value)
+
+
+async def test_params_contexts_empty_list(bidi_session):
+    with pytest.raises(error.InvalidArgumentException):
+        await bidi_session.network.add_intercept(phases=["beforeRequestSent"], contexts=[])
+
+
+async def test_params_contexts_context_invalid_value(bidi_session):
+    with pytest.raises(error.NoSuchFrameException):
+        await bidi_session.network.add_intercept(phases=["beforeRequestSent"], contexts=["does not exist"])
+
+
+async def test_params_contexts_context_non_top_level(bidi_session, new_tab, test_page_same_origin_frame):
+    await bidi_session.browsing_context.navigate(
+        context=new_tab["context"],
+        url=test_page_same_origin_frame,
+        wait="complete",
+    )
+
+    contexts = await bidi_session.browsing_context.get_tree(root=new_tab["context"])
+
+    assert len(contexts) == 1
+    assert len(contexts[0]["children"]) == 1
+    child_info = contexts[0]["children"][0]
+
+    with pytest.raises(error.InvalidArgumentException):
+        await bidi_session.network.add_intercept(phases=["beforeRequestSent"], contexts=[child_info['context']])