Issue 223 part2 (#230)
Issue 223 part2 (#230)

* fix issue 223 add unit test for QuestionDataServiceSpec

* fix issue 223 add unit test for QuestionDataServiceSpec

* fix issue 223 add unit test for QuestionDataServiceSpec capture the specific error

* fix issue 223 add unit test for QuestionDataServiceSpec newline at the end of a file

google/tie,BenjaminHolland/tie,BenjaminHolland/tie,BenjaminHolland/tie,google/tie,google/tie