Merge branch 'fix/update_tests' into develop

Author: avara1986

.travis.yml

@@ -3,15 +3,9 @@ sudo: false
 cache: false
 python:
     - '3.6'
-addons:
-  apt:
-    sources:
-      - deadsnakes
-    packages:
-    - python3.5
-    - python3.5-dev
+
 install:
-  - pip install -U tox coveralls
+  - pip install -rrequirements-tests.txt
 
 script:
   - coverage erase

tox.ini

@@ -2,20 +2,16 @@
 envlist = py36
 
 [testenv]
+deps =
+    -r{toxinidir}/requirements-tests.txt
 commands =
     coverage run {envbindir}/nosetests
 
-install_command =
-    pip install {opts} {packages}
-
-recreate = True
+recreate = true
 
 [testenv:py36]
 basepython = python3.6
-deps = -rrequirements-tests.txt
 [testenv:py35]
 basepython = python3.5
-deps = -rrequirements-tests.txt
 [testenv:py27]
-basepython = python2.7
-deps = -rrequirements-tests.txt
+basepython = python2.7