Simplify tox to test against last pytest

Author: nicoddemus

tox.ini

@@ -1,8 +1,6 @@
 [tox]
 envlist =
-    py{36,35}-pytest{31,30,29,28,27}
-    py{34,33,27,26}-pytest{31,30,29,28,27,26}
-    pypy-pytest{31,30,29,28,27,26}
+    py{27,34,35,36,37}
 
 
 [pytest]
@@ -16,27 +14,19 @@ pep8maxlinelength = 119
 usedevelop = True
 deps =
     -rrequirements/main.txt
-    -rrequirements/test.txt
-    pytest26: pytest>=2.6,<2.7
-    pytest27: pytest>=2.7,<2.8
-    pytest28: pytest>=2.8,<2.9
-    pytest29: pytest>=2.9,<3.0
-    pytest30: pytest>=3.0,<3.1
-    pytest31: pytest>=3.1,<3.2
-    pytest26: pytest-xdist<1.16.0
-    pytest{31,30,29,28,27}: pytest-xdist
+    -rrequirements/test.txt 
 
 passenv = HOME LANG LC_ALL
 
 commands =
-    py.test -q --basetemp={envtmpdir} --confcutdir=.. -n 1 \
+    pytest -q --basetemp={envtmpdir} --confcutdir=tests \
         --junitxml=tests/junit.xml \
         --cov-report xml --cov pytest_flask \
         --cov-report=html \
         --cov-report term-missing \
         --pep8 \
-        -n 2 \
-        {posargs}
+        -ra \
+        {posargs:tests}
 
 
 [testenv:docs]
@@ -48,12 +38,3 @@ commands =
 
 whitelist_externals =
     /usr/bin/make
-
-
-[tox:travis]
-2.6 = py26-pytest{31,30,29,28,27,26}
-2.7 = py27-pytest{31,30,29,28,27,26}
-3.3 = py33-pytest{31,30,29,28,27,26}
-3.4 = py34-pytest{31,30,29,28,27,26}
-3.5 = py35-pytest{31,30,29,28,27}
-3.6 = py36-pytest{31,30,29,28,27}