added nose test cases to workflow.yml

.github/workflows/workflow.yml

@@ -33,6 +33,6 @@ jobs:
         flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
         # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
         flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
-    - name: Test with pytest
+    - name: Run unit tests with nose
       run: |
-        python -m pytest
+        nosetests -v --with-spec --spec-color --with-coverage --cover-package=app