[py] Add test for warning when embedding user:pass in URL

Signed-off-by: Viet Nguyen Duc <[email protected]>

py/test/unit/selenium/webdriver/remote/remote_connection_tests.py

@@ -69,8 +69,13 @@ def test_get_remote_connection_headers_defaults():
 
 def test_get_remote_connection_headers_adds_auth_header_if_pass():
     url = "http://user:pass@remote"
-    headers = RemoteConnection.get_remote_connection_headers(parse.urlparse(url))
+    with pytest.warns(None) as record:
+        headers = RemoteConnection.get_remote_connection_headers(parse.urlparse(url))
     assert headers.get("Authorization") == "Basic dXNlcjpwYXNz"
+    assert (
+        record[0].message.args[0]
+        == "Embedding username and password in URL could be insecure, use ClientConfig instead"
+    )
 
 
 def test_get_remote_connection_headers_adds_keep_alive_if_requested():