[py] Fix Remote Firefox tests on Linux/Wayland (#15648)

Author: cgoldberg

py/conftest.py

@@ -159,9 +159,10 @@ def fin():
     if driver_instance is None:
         if driver_class == "Firefox":
             options = get_options(driver_class, request.config)
-            # There are issues with window size/position when running Firefox
-            # under Wayland, so we use XWayland instead.
-            os.environ["MOZ_ENABLE_WAYLAND"] = "0"
+            if platform.system() == "Linux":
+                # There are issues with window size/position when running Firefox
+                # under Wayland, so we use XWayland instead.
+                os.environ["MOZ_ENABLE_WAYLAND"] = "0"
         if driver_class == "Chrome":
             options = get_options(driver_class, request.config)
         if driver_class == "Edge":
@@ -174,9 +175,6 @@ def fin():
             options = get_options("Firefox", request.config) or webdriver.FirefoxOptions()
             options.set_capability("moz:firefoxOptions", {})
             options.enable_downloads = True
-            # There are issues with window size/position when running Firefox
-            # under Wayland, so we use XWayland instead.
-            os.environ["MOZ_ENABLE_WAYLAND"] = "0"
         if driver_path is not None:
             kwargs["service"] = get_service(driver_class, driver_path)
         if options is not None:
@@ -315,6 +313,11 @@ def wait_for_server(url, timeout):
             "is using port {}, continuing...".format(_port)
         )
     except Exception:
+        remote_env = os.environ.copy()
+        if platform.system() == "Linux":
+            # There are issues with window size/position when running Firefox
+            # under Wayland, so we use XWayland instead.
+            remote_env["MOZ_ENABLE_WAYLAND"] = "0"
         print("Starting the Selenium server")
         process = subprocess.Popen(
             [
@@ -328,7 +331,8 @@ def wait_for_server(url, timeout):
                 "true",
                 "--enable-managed-downloads",
                 "true",
-            ]
+            ],
+            env=remote_env,
         )
         print(f"Selenium server running as process: {process.pid}")
         assert wait_for_server(url, 10), f"Timed out waiting for Selenium server at {url}"

py/test/selenium/webdriver/common/api_example_tests.py

@@ -239,6 +239,7 @@ def test_is_element_displayed(driver, pages):
 
 @pytest.mark.xfail_edge
 @pytest.mark.xfail_firefox(reason="https://github.com/mozilla/geckodriver/issues/2224")
+@pytest.mark.xfail_remote(reason="https://github.com/mozilla/geckodriver/issues/2224")
 @pytest.mark.xfail_safari
 def test_move_window_position(driver, pages):
     pages.load("blank.html")

py/test/selenium/webdriver/common/window_tests.py

@@ -67,6 +67,7 @@ def test_should_get_the_position_of_the_current_window(driver):
 @pytest.mark.xfail_chrome
 @pytest.mark.xfail_edge
 @pytest.mark.xfail_firefox(reason="https://github.com/mozilla/geckodriver/issues/2224")
+@pytest.mark.xfail_remote(reason="https://github.com/mozilla/geckodriver/issues/2224")
 def test_should_set_the_position_of_the_current_window(driver):
     position = driver.get_window_position()
 
@@ -94,6 +95,7 @@ def test_should_get_the_rect_of_the_current_window(driver):
 
 @pytest.mark.xfail_edge
 @pytest.mark.xfail_firefox(reason="https://github.com/mozilla/geckodriver/issues/2224")
+@pytest.mark.xfail_remote(reason="https://github.com/mozilla/geckodriver/issues/2224")
 @pytest.mark.xfail_safari(raises=WebDriverException, reason="Get Window Rect command not implemented")
 def test_should_set_the_rect_of_the_current_window(driver):
     rect = driver.get_window_rect()