WIP: Update tox.ini

tox.ini

@@ -1,15 +1,15 @@
 [tox]
-envlist = py27,py34,py35,py36,pycodestyle,isort-check
+envlist = py27,py34,py35,py36,pycodestyle,isort-check,taxii-datastore
 
 [testenv]
 deps =
-    -U
-    tox
-    pytest
-    pytest-cov
-    coverage
+  -U
+  tox
+  pytest
+  pytest-cov
+  coverage
 commands =
-    py.test --cov=stix2 stix2/test/ --cov-report term-missing
+  py.test --cov=stix2 stix2/test/ --cov-report term-missing
 
 passenv = CI TRAVIS TRAVIS_*
 
@@ -22,20 +22,28 @@ commands =
   flake8
 
 [pycodestyle]
-max-line-length=160
+max-line-length = 160
 
 [flake8]
-max-line-length=160
+max-line-length = 160
 
 [testenv:isort-check]
 deps = isort
 commands =
-    isort -rc stix2 examples -df
-    isort -rc stix2 examples -c
+  isort -rc stix2 examples -df
+  isort -rc stix2 examples -c
+
+[testenv:taxii-datastore]
+deps =
+  git+https://github.com/oasis-open/cti-taxii-client.git#egg=taxii2-client
+  git+https://github.com/oasis-open/cti-taxii-server.git#egg=medallion
+
+commands =
+  py.test --cov=stix2 stix2/test/test_datastore_taxii.py --cov-report term-missing
 
 [travis]
 python =
-  2.7: py27, pycodestyle
+  2.7: py27, pycodestyle, taxii-datastore
   3.4: py34, pycodestyle
   3.5: py35, pycodestyle
-  3.6: py36, pycodestyle
+  3.6: py36, pycodestyle, taxii-datastore