[py] Add tests for add/remove_request_handler

Author: jman-sketch

Diff for: py/test/selenium/webdriver/common/bidi_network_tests.py

@@ -0,0 +1,52 @@
+# Licensed to the Software Freedom Conservancy (SFC) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The SFC licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+import pytest
+import trio
+
+from selenium.webdriver.common.bidi.cdp import open_cdp
+from selenium.webdriver.common.bidi.network import BeforeRequestSentParameters
+from selenium.webdriver.common.bidi.network import ContinueRequestParameters
+
+@pytest.mark.xfail_firefox
+@pytest.mark.xfail_safari
+@pytest.mark.xfail_edge
+async def test_add_request_handler(driver):
+
+    def request_filter(params: BeforeRequestSentParameters):
+        return params.request["url"] == "https://www.example.com/"
+
+    def request_handler(params: BeforeRequestSentParameters):
+        request = params.request["request"]
+        json = {"request": request, "url": "https://www.selenium.dev/about/"}
+        return ContinueRequestParameters(**json)
+
+    ws_url = driver.caps.get("webSocketUrl")
+    async with open_cdp(ws_url) as conn:
+        async with trio.open_nursery() as nursery:
+            nursery.start_soon(
+                driver.network.add_request_handler,
+                request_filter,
+                request_handler,
+                conn,
+            )
+            await trio.sleep(1)
+            await driver.network.get("https://www.example.com", conn)
+            assert "Selenium" in driver.title
+            await trio.sleep(1)
+            await driver.network.remove_request_handler()
+            await driver.network.get("https://www.example.com", conn)
+            assert "Example" in driver.title