run coverage on each file explicitly

.gitlab-ci.yml

@@ -22,10 +22,10 @@ exitcode-jessie:
     - pip install coverage
     - pip install coverage-badge
     - python setup.py install
-    - for test in test/*.py; do coverage run $test; done
-#    - coverage run test/parameter_tests.py
-#    - coverage run test/tests.py
-#    - coverage run test/waveform_generator_tests.py
+#    - for test in test/*.py; do coverage run $test; done
+    - coverage run test/parameter_tests.py
+    - coverage run test/tests.py
+    - coverage run test/waveform_generator_tests.py
     - coverage html --include=peyote/*
     - coverage-badge -o coverage.svg
   artifacts: