Added tox.ini and improved travis.yml

.gitignore

@@ -78,3 +78,5 @@ Session.vim
 *~
 # auto-generated tag files
 tags
+.tox/
+.pytest_cache/

.travis.yml

@@ -1,62 +1,60 @@
 language: python
 sudo: required
 dist: xenial
+
 python:
-- 2.7
-- 3.4
-- 3.5
-- 3.6
-- 3.7
+  - 2.7
+  - 3.4
+  - 3.5
+  - 3.6
+  - 3.7
+
+env:
+  matrix:
+    - DJANGO=1.11
+    - DJANGO=2.1
+    - DJANGO=2.2
+    - DJANGO=master
+
 install:
-- |
-  if [ "$TEST_TYPE" = build ]; then
-    pip install -e .[test]
-    pip install psycopg2==2.8.2 # Required for Django postgres fields testing
-    pip install django==$DJANGO_VERSION
-    python setup.py develop
-  elif [ "$TEST_TYPE" = lint ]; then
-    pip install flake8==3.7.7
-  fi
+  - TOX_ENV=py${TRAVIS_PYTHON_VERSION}-django${DJANGO}
+  - pip install tox
+  - tox -e $TOX_ENV --notest
 script:
-- |
-  if [ "$TEST_TYPE" = lint ]; then
-    echo "Checking Python code lint."
-    flake8 graphene_django
-    exit
-  elif [ "$TEST_TYPE" = build ]; then
-    py.test --cov=graphene_django graphene_django examples
-  fi
+  - tox -e $TOX_ENV
+
 after_success:
-- |
-  if [ "$TEST_TYPE" = build ]; then
-      coveralls
-  fi
-env:
-  matrix:
-  - TEST_TYPE=build DJANGO_VERSION=1.11
+  - tox -e $TOX_ENV -- pip install coveralls 
+  - tox -e $TOX_ENV -- coveralls $COVERALLS_OPTION
+
 matrix:
   fast_finish: true
   include:
-  - python: '3.4'
-    env: TEST_TYPE=build DJANGO_VERSION=2.0
-  - python: '3.5'
-    env: TEST_TYPE=build DJANGO_VERSION=2.0
-  - python: '3.6'
-    env: TEST_TYPE=build DJANGO_VERSION=2.0
-  - python: '3.5'
-    env: TEST_TYPE=build DJANGO_VERSION=2.1
-  - python: '3.6'
-    env: TEST_TYPE=build DJANGO_VERSION=2.1
-  - python: '3.6'
-    env: TEST_TYPE=build DJANGO_VERSION=2.2
-  - python: '3.7'
-    env: TEST_TYPE=build DJANGO_VERSION=2.2
-  - python: '2.7'
-    env: TEST_TYPE=lint
-  - python: '3.6'
-    env: TEST_TYPE=lint
-  - python: '3.7'
-    env: TEST_TYPE=lint
+  - python: 3.5
+    script: tox -e lint
+  exclude:
+    - python: 2.7
+      env: DJANGO=2.1
+    - python: 2.7
+      env: DJANGO=2.2
+    - python: 2.7
+      env: DJANGO=master
+    - python: 3.4
+      env: DJANGO=2.1
+    - python: 3.4
+      env: DJANGO=2.2
+    - python: 3.4
+      env: DJANGO=master
+    - python: 3.5
+      env: DJANGO=master
+    - python: 3.7
+      env: DJANGO=1.10
+    - python: 3.7
+      env: DJANGO=1.11
+  allow_failures:
+    - python: 3.7
+    - env: DJANGO=master
+
 deploy:
   provider: pypi
   user: syrusakbary

tox.ini

@@ -0,0 +1,31 @@
+[tox]
+envlist = py{2.7,3.4,3.5,3.6,3.7,pypy,pypy3}-django{1.10,1.11,2.0,2.1,2.2,master},lint
+
+[testenv]
+passenv = *
+usedevelop = True
+setenv = 
+    DJANGO_SETTINGS_MODULE=django_test_settings
+basepython =
+    py2.7: python2.7
+    py3.4: python3.4
+    py3.5: python3.5
+    py3.6: python3.6
+    py3.7: python3.7
+    pypypy: pypy
+    pypypy3: pypy3
+deps =
+    -e.[test]
+    psycopg2
+    django1.10: Django>=1.10,<1.11
+    django1.11: Django>=1.11,<1.12
+    django2.0: Django>=2.0
+    django2.1: Django>=2.1
+    djangomaster: https://github.com/django/django/archive/master.zip
+commands = {posargs:py.test --cov=graphene_django graphene_django examples}
+
+[testenv:lint]
+basepython = python
+deps =
+    prospector
+commands = prospector graphene_django -0