Do not changedir for py27 and xdist runs

Author: nicoddemus

tox.ini

@@ -51,9 +51,8 @@ deps =
     nose
     hypothesis>=3.56
     {env:_PYTEST_TOX_EXTRA_DEP:}
-changedir=testing
 commands =
-    {env:_PYTEST_TOX_COVERAGE_RUN:} pytest -n8 -ra {posargs:.}
+    {env:_PYTEST_TOX_COVERAGE_RUN:} pytest -n8 -ra {posargs:testing}
 
 [testenv:py36-xdist]
 deps = {[testenv:py27-xdist]deps}
@@ -81,12 +80,11 @@ deps =
     mock
     {env:_PYTEST_TOX_EXTRA_DEP:}
 distribute = true
-changedir=testing
 setenv =
     {[testenv]setenv}
     PYTHONDONTWRITEBYTECODE=1
 commands =
-    {env:_PYTEST_TOX_COVERAGE_RUN:} pytest -n3 -ra {posargs:.}
+    {env:_PYTEST_TOX_COVERAGE_RUN:} pytest -n3 -ra {posargs:testing}
 
 [testenv:py27-trial]
 deps =