Added explicit rstrip(',').

Author: shaoltan-amazon

scripts/tests/run_tv_casting_test.py

@@ -372,6 +372,7 @@ def parse_tv_casting_app_for_report_data_msg(tv_casting_app_info: Tuple[subproce
 
 
                     cluster_value = extract_value_from_string(tv_casting_line)
+                    cluster_value = cluster_value.rstrip(',')
                     if cluster_value != CLUSTER_MEDIA_PLAYBACK:
                         print('SHAO we entered into the mismatch cluster ID block!!!!')
                         print('cluster_value: ', cluster_value)
@@ -391,6 +392,7 @@ def parse_tv_casting_app_for_report_data_msg(tv_casting_app_info: Tuple[subproce
 
 
                     attribute_value = extract_value_from_string(tv_casting_line)
+                    attribute_value = attribute_value.rstrip(', ')
                     if attribute_value != ATTRIBUTE_CURRENT_PLAYBACK_STATE:
                         print('SHAO we entered into the mismatch attribute ID block!!!!')
                         print('attr_value: ', attribute_value)