request unit tests

tox.ini

@@ -3,7 +3,11 @@ envlist=flake8,py35,py36,py37,upy
 skip_missing_interpreters=True
 
 [testenv]
-commands=python run_tests.py
+commands=
+    coverage run --branch --include="microdot.py" -m unittest tests
+    coverage report --show-missing
+    coverage erase
+deps=coverage
 basepython=
     flake8: python3.7
     py35: python3.5
@@ -15,7 +19,7 @@ basepython=
 deps=
     flake8
 commands=
-    flake8 microdot.py tests
+    flake8 --exclude=tests/unittest.py microdot.py tests
 
 [testenv:upy]
 whitelist_externals=sh