Tweak tox.ini and .coveragerc in hopes of getting pytest-cov and pytest-xdist to play nicely together

Author: tleonhardt

.coveragerc

@@ -1,5 +1,7 @@
 # .coveragerc to control coverage.py
 [run]
+# Source
+source = cmd.py,tests
 # (boolean, default False): whether to measure branch coverage in addition to statement coverage.
 branch = False
 

tox.ini

@@ -1,6 +1,9 @@
 [tox]
 envlist = py27,py33,py34,py35,py36,py36-winpy37,pypy
 
+[pytest]
+testpaths = tests
+
 [testenv]
 passenv = CI TRAVIS TRAVIS_* APPVEYOR*
 
@@ -12,9 +15,10 @@ deps =
   pyperclip
   pytest
   pytest-cov
+  pytest-xdist
   six
 commands =
-  py.test -v --cov=cmd2 --basetemp={envtmpdir} {posargs}
+  py.test -v --cov=cmd2 -nauto --cov-report=term-missing tests
   codecov
 
 [testenv:py33]
@@ -25,7 +29,7 @@ deps =
   pytest
   pytest-xdist
   six
-commands = py.test -v -n2
+commands = py.test -v -nauto
 
 [testenv:py34]
 deps =
@@ -35,7 +39,7 @@ deps =
   pytest
   pytest-xdist
   six
-commands = py.test -v -n2
+commands = py.test -v -nauto
 
 [testenv:py35]
 deps =
@@ -45,7 +49,7 @@ deps =
   pytest
   pytest-xdist
   six
-commands = py.test -v -n2
+commands = py.test -v -nauto
 
 [testenv:py36]
 deps =
@@ -55,9 +59,10 @@ deps =
   pyperclip
   pytest
   pytest-cov
+  pytest-xdist
   six
 commands =
-  py.test -v --cov=cmd2 --basetemp={envtmpdir} {posargs}
+  py.test -v --cov=cmd2 -nauto --cov-report=term-missing tests
   codecov
 
 [testenv:py36-win]
@@ -68,7 +73,7 @@ deps =
   pytest
   pytest-xdist
   six
-commands = py.test -v -n2
+commands = py.test -v -nauto
 
 [testenv:py37]
 deps =
@@ -78,5 +83,5 @@ deps =
   pytest
   pytest-xdist
   six
-commands = py.test -v -n2
+commands = py.test -v -nauto