change test design

workflow/tests/test_check_design.py

@@ -10,5 +10,5 @@ test_output_path = os.path.dirname(os.path.abspath(__file__)) + \
 
 @pytest.mark.design
 def test_design():
-    print os.path.join(test_output_path, 'design.checked.csv')
-    assert os.path.exists(os.path.join(test_output_path, 'design.checked.csv'))
+    design_file = os.path.join(test_output_path, 'design.checked.csv')
+    assert os.path.exists(design_file)