Add scripts for unittests

tests/check_coverage.sh

@@ -1,5 +1,6 @@
 #!/usr/bin/bash
 
-coverage run -m unittest discover
+export PYTHONPATH=${PYTHONPATH}:'../tools'
+coverage run --source paddlers,$(ls -d ../tools/* | tr '\n' ',') --omit=../paddlers/models/* -m unittest discover -v
 coverage report
 coverage html -d coverage_html

tests/run_tests.sh

@@ -1,3 +1,4 @@
 #!/usr/bin/bash
 
+export PYTHONPATH=${PYTHONPATH}:'../tools'
 python -m unittest discover -v