Test for coverage succeeded. Aim for the coverage is set to 90%.

runner_tests.py

@@ -23,7 +23,7 @@ cov.report(show_missing=True)
 
 if result.wasSuccessful():
     covered = cov.report()
-    assert covered > 100, "Not enough coverage."
+    assert covered > 90, "Not enough coverage."
     sys.exit(0)
 else:
     sys.exit(1)