add more modules for coverage

.travis.yml

@@ -6,6 +6,6 @@ before_install:
 install:
   - "pip install -r requirements.txt"
 script:
-  - "pytest --cov-report=xml --cov=cathapi select_template_api/tests.py"
+  - "pytest --cov-report=xml --cov=cathapi --cov=frontend --cov=select_template_api frontend/tests.py select_template_api/tests.py"
 after_success:
   - codecov
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