Use pytest as default test runner instead of unittest for tox

There was some trouble getting this to work. I needed to use
--pyargs for pytest to work in tox

Allow for test file prefix unittest_ to be changed to standard test_
Helps with updating the astroid tests to standard pytest conventions

Make pytest use proper test directory by default

1 files changed, 2 insertions, 1 deletions

diff --git a/setup.cfg b/setup.cfg
index a10cefc0..f8e89c28 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,4 +1,5 @@
 [wheel]
 universal = 1
 [tool:pytest]
-python_files = unittest_*
+python_files = unittest_* test_*.py
+testpaths = astroid/tests