Collect PyPy and AppVeyor coverage using tox

Coverage of PyPy was disabled however it works
without trouble, albeit a little slow.

To allow tox to run tests under coverage,
and with arguments passed to coverage,
PYTEST_COMMAND can now be used to override
the default command used to run the tests,
and COVERAGE_RUN_OPTIONS is passed through.

Due to pips inability to deal with multiple
requirements for the same package, six==1.9 is
forcably installed after the tox environment
has been setup.

Author: jayvdb

.appveyor.yml

@@ -1,10 +1,12 @@
 # To activate, change the Appveyor settings to use `.appveyor.yml`.
-init:
-  - SET PATH=C:\\Python27\\Scripts\\;%PATH%"
+environment:
+  PATH: "C:\\Python27\\Scripts\\;%PATH%"
+  PYTEST_COMMAND: "coverage run -m pytest"
+  COVERAGE_RUN_OPTIONS: --parallel-mode
 
 install:
   - git submodule update --init --recursive
-  - python -m pip install tox
+  - python -m pip install tox codecov
 
 build: off
 
@@ -14,3 +16,7 @@ test_script:
 
 after_test:
   - python debug-info.py
+
+on_success:
+  - coverage combine
+  - codecov

.travis.yml

@@ -12,20 +12,21 @@ sudo: false
 cache: pip
 
 env:
-  - USE_OPTIONAL=true
-  - USE_OPTIONAL=false
-  - SIX_VERSION=1.9 USE_OPTIONAL=true
+  global:
+    - PYTEST_COMMAND="coverage run -m pytest"
+  matrix:
+    - TOXENV=optional
+    - TOXENV=base
+    - TOXENV=six19
 
 install:
-  - ./requirements-install.sh
+  - pip install tox codecov
 
 script:
-  - if [[ $TRAVIS_PYTHON_VERSION == pypy* ]]; then py.test; fi
-  - if [[ $TRAVIS_PYTHON_VERSION != pypy* ]]; then coverage run -m pytest; fi
-  - bash flake8-run.sh
+  - tox
 
 after_script:
   - python debug-info.py
 
 after_success:
-  - if [[ $TRAVIS_PYTHON_VERSION != pypy* ]]; then codecov; fi
+  - codecov

requirements-test.txt

@@ -1,6 +1,10 @@
 -r requirements.txt
 
+tox
+
 flake8<3.0
+
 pytest
+coverage
 pytest-expect>=1.1,<2.0
 mock

tox.ini

@@ -1,21 +1,23 @@
 [tox]
-envlist = {py27,py33,py34,py35,py36,pypy}-{base,optional}
+envlist = {py27,py33,py34,py35,py36,pypy}-{base,six19,optional}
 
 [testenv]
 deps =
-  flake8<3.0
-  pytest
-  pytest-expect>=1.1,<2.0
-  mock
-  base: six
-  base: webencodings
   optional: -r{toxinidir}/requirements-optional.txt
+  -r{toxinidir}/requirements-test.txt
   doc: Sphinx
 
+passenv =
+  PYTEST_COMMAND
+  COVERAGE_RUN_OPTIONS
 commands =
-  {envbindir}/py.test {posargs}
+  six19: pip install six==1.9
+  {env:PYTEST_COMMAND:{envbindir}/py.test} {posargs}
   flake8 {toxinidir}
 
 [testenv:doc]
 changedir = doc
 commands = sphinx-build -b html . _build
+
+[flake8]
+exclude = ./.tox