[py] Add tests

Author: cgoldberg

py/test/selenium/webdriver/firefox/firefox_sizing_tests.py

@@ -0,0 +1,57 @@
+# 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 os
+import platform
+from unittest.mock import patch
+
+import pytest
+
+from selenium import webdriver
+
+
+def is_running_wayland():
+    if platform.system() == "Linux" and os.getenv("WAYLAND_DISPLAY"):
+        return True
+    return False
+
+
+@pytest.mark.skipif(not is_running_wayland(), reason="This test only runs on Linux under Wayland")
+def test_firefox_opens_large_when_running_xwayland():
+    # setting environment variable `MOZ_ENABLE_WAYLAND=0` forces Firefox
+    # to run under XWayland on Wayland based systems
+    with patch.dict("os.environ", {"MOZ_ENABLE_WAYLAND": "0"}):
+        try:
+            driver = webdriver.Firefox()
+            size = driver.get_window_size()
+            assert size["height"] > 500
+            assert size["width"] > 500
+        finally:
+            driver.quit()
+
+
+@pytest.mark.skipif(not is_running_wayland(), reason="This test only runs on Linux under Wayland")
+@pytest.mark.xfail(reason="https://bugzilla.mozilla.org/show_bug.cgi?id=1959040")
+# Firefox opens in a small window when running on Linux/Wayland
+def test_firefox_opens_large_when_running_wayland():
+    try:
+        driver = webdriver.Firefox()
+        size = driver.get_window_size()
+        assert size["height"] > 500
+        assert size["width"] > 500
+    finally:
+        driver.quit()