[FIX] Ensure build fails in Circle when tests fail

- Added a dummy test that always fails

Author: oesteban

docker/files/run_pytests.sh

@@ -40,4 +40,6 @@ fi
 # Collect crashfiles
 find ${WORKDIR} -name "crash-*" -maxdepth 1 -exec mv {} ${WORKDIR}/crashfiles/ \;
 
+echo "Unit tests finished with exit code ${exit_code}"
 exit ${exit_code}
+

nipype/tests/test_nipype.py

@@ -6,4 +6,8 @@ def test_nipype_info():
         get_info()
     except Exception as e:
         exception_not_raised = False
-    assert exception_not_raised
+    assert exception_not_raised
+
+def test_fail_always():
+    assert False
+