Fix validation test to run on windows and linux (#896)

Author: CarolynRountree

core/src/main/python/wlsdeploy/util/cla_helper.py

@@ -403,7 +403,7 @@ def persist_model(model_context, model_dictionary):
     if check_persist_model():
         store_value = os.environ.get(_store_environment_variable)
 
-        if store_value.startswith('/') or store_value.startswith('\\'):
+        if os.path.isabs(store_value):
             file_path = store_value
         elif model_context.get_domain_home() is not None:
             file_path = model_context.get_domain_home() + os.sep + 'wlsdeploy' + os.sep + 'domain_model.json'

core/src/test/python/validation_test.py

@@ -29,9 +29,9 @@
 class ValidationTestCase(unittest.TestCase):
     _program_name = 'validation_test'
     _class_name = 'ValidationTestCase'
-    _resources_dir = '../../test-classes'
+    _resources_dir = '..' + os.sep + '..' + os.sep + 'test-classes'
     # Model persistence file
-    _wlsdeply_store_model = os.path.abspath(os.getcwd()) + '/' + _resources_dir + '/validate-mii-model.json'
+    _wlsdeply_store_model = os.path.abspath(os.getcwd()) + os.sep + _resources_dir + os.sep + 'validate-mii-model.json'
     # _variable_file = _resources_dir + "/test_sub_variable_file.properties"
     # _model_file = _resources_dir + '/test_empty.json'
     # _variable_file = _resources_dir + "/test_invalid_variable_file.properties"