EDUCATOR-1263 Fix Learner Training Assessment assess

openassessment/xblock/data_conversion.py

@@ -92,7 +92,7 @@ def update_assessments_format(assessments):
                             {'text': example['answer']}
                         ]
                     }
-                if isinstance(example, dict) and isinstance(example['answer'], list) and example['answer'] > 0 :
+                if isinstance(example, dict) and isinstance(example['answer'], list) and example['answer']:
                     example['answer'] = {
                         'parts': [
                             {'text': example['answer'][0]}

openassessment/xblock/test/test_data_conversion.py

@@ -55,6 +55,8 @@ class DataConversionTest(TestCase):
 
     @ddt.data(
         ([{'answer': 'Ans'}], [{'answer': {'parts': [{'text': 'Ans'}]}}]),
+        ([{'answer': ['Ans']}], [{'answer': {'parts': [{'text': 'Ans'}]}}]),
+        ([{'answer': []}], [{'answer': []}]),
     )
     @ddt.unpack
     def test_update_assessments_format(self, input, output):