Skip RHEL6 test for CIQ extension. Close #265.

cybox/test/extensions/location/ciq_test.py

@@ -5,14 +5,22 @@
 
 import unittest
 
+from mixbox.binding_utils import etree_
 from mixbox.vendor.six import StringIO
 
-from cybox.bindings.extensions.location import ciq_address_3_0
-
 
 class CIQAddressTests(unittest.TestCase):
 
     def test_can_load_extension(self):
+        if etree_.LXML_VERSION < (2, 3, 0, 0):
+            # Older versions of LXML do not support `register_namespace` needed
+            # for CybOX extensions to work. This is only an issue during RHEL6
+            # tests, which also use Python 2.6, meaning that unittest.skipTest
+            # is not implemented. So we just 'return' here.
+            return
+            # self.skipTest("LXML >= 2.3 required to use extensions")
+
+        from cybox.bindings.extensions.location import ciq_address_3_0
         addr = ciq_address_3_0.CIQAddress3_0InstanceType()
 
         # Really basic test to verify the extension works.