修改默认规范tests 与 discover 套件冲突问题

Author: zhenwei-li

tox.ini

@@ -23,10 +23,11 @@ platform = linux: linux
 ; alwayscopy = True
 allowlist_externals =
     /bin/bash
-changedir =
-    test
+; changedir =
+;     tests
 # https://tox.readthedocs.io/en/latest/config.html#conf-deps
 deps =
+    unittest2
     flake8
     virtualenv
     setuptools
@@ -41,4 +42,5 @@ commands =
     ; windows: python --version
     ; macos,linux: python --version
     discover
+    ; unit2 discover []
     ; python -m unittest discover