Add tox environment factors to tox and travis ci

.travis.yml

@@ -31,7 +31,7 @@ matrix:
 
     - name: "3.7 Unit Tests"
       python: 3.7
-      env: TOXENV=py37
+      env: TOXENV=py37-coverage
     - name: "3.7 pylint Check"
       python: 3.7
       env: TOXENV=lint
@@ -42,13 +42,12 @@ matrix:
     - name: "3.7 sphinx Check"
       python: 3.7
       env: TOXENV=sphinx
-
-    - name: "3.7 Update Coverage"
-      python: 3.7
-      env: TOXENV=coveralls
-# Dependencies needed to run tox tests.
+# Dependencies needed to run tox tests and update coveralls.
 install:
-  - pip install tox
-# Run each test in matrix
+  - pip install tox coveralls
+# Run each test in matrix.
 script:
-  - tox -e $TOXENV
+  - tox -e $TOXENV
+# Update coveralls coverage.
+after_success:
+  - coveralls

tox.ini

@@ -4,7 +4,7 @@
 # and then run "tox" from this directory.
 
 [tox]
-envlist = py36, py37, lint, pydocstyle, sphinx
+envlist = py36, py37-coverage, lint, pydocstyle, sphinx
 skip_missing_interpreters = True
 skipsdist=True
 
@@ -15,6 +15,7 @@ deps =
 
 commands =
     python -m unittest discover -s tests
+    coverage: coverage run -m unittest discover -s tests
 
 [testenv:lint]
 commands =
@@ -29,7 +30,9 @@ deps =
     coverage
     -r{toxinidir}/requirements.txt
 
-commands = coverage run -m unittest discover -s tests
+commands =
+    coverage run -m unittest discover -s tests
+    coverage report
 
 [testenv:sphinx]
 deps =
@@ -38,14 +41,3 @@ deps =
 commands =
      sphinx-build -M dummy {toxinidir}/docs/source {toxinidir}/docs/build
      sphinx-build -M linkcheck {toxinidir}/docs/source {toxinidir}/docs/build
-
-[testenv:coveralls]
-passenv = TRAVIS TRAVIS_*
-deps =
-    coverage
-    coveralls
-    -r{toxinidir}/requirements.txt
-
-commands =
-    coverage run -m unittest discover -s tests
-    coveralls