[py] Skip tests if we can't run them on that platform

py/conftest.py

@@ -16,6 +16,7 @@
 # under the License.
 
 import os
+import platform
 import socket
 import subprocess
 import sys
@@ -81,6 +82,15 @@ def driver(request):
     except AttributeError:
         raise Exception('This test requires a --driver to be specified.')
 
+    # skip tests if not available on the platform
+    _platform = platform.system()
+    if driver_class == "Safari" and _platform != "Darwin":
+        pytest.skip("Safari tests can only run on an Apple OS")
+    if (driver_class == "Ie" or driver_class == "Edge") and _platform != "Windows":
+        pytest.skip("IE and EdgeHTML Tests can only run on Windows")
+    if "WebKit" in driver_class and _platform != "Linux":
+        pytest.skip("Webkit tests can only run on Linux")
+
     # conditionally mark tests as expected to fail based on driver
     marker = request.node.get_closest_marker('xfail_{0}'.format(driver_class.lower()))