Travis: Use Tox for testing

Using Tox for running the tests allows a bit cleaner setup and makes it
possible to run all the same test environments locally too.

.travis.yml

@@ -4,18 +4,24 @@ sudo: false
 dist: trusty
 
 language: python
-python:
-  - '3.4'
-  - '3.5'
-  - '3.6'
-
-env:
-  global:
-    - DEBUG=0
-    - SECRET_KEY=topsecret123
 
 cache: pip
 
+matrix:
+  include:
+    - python: "3.4"
+    - python: "3.5"
+    - python: "3.6"
+    - env: TOXENV=requirements
+      python: "3.4"
+      addons: null
+      before_script: null
+    - env: TOXENV=style
+      python: "3.4"
+      addons: null
+      before_script: null
+
+
 # As of 2017-08 the new travis trusty images have broken postgis,
 # so we have to specify the exact postgres version to install right addons
 addons:
@@ -24,20 +30,10 @@ addons:
     packages:
     - postgresql-9.6-postgis-2.3
 
-install:
-  - pip install codecov -r requirements.txt -r requirements-test.txt
-
-before_script:
-  - psql -c 'create database parkkihubi;' -U postgres
-  - psql -U postgres -c "create extension postgis"
-
-script:
-  - flake8
-  - pytest -ra -vvv --cov
-  - |
-    if [ "$TRAVIS_PYTHON_VERSION" = "3.4" ]; then
-        pip install -q prequ
-        prequ check -v
-    fi
+install: pip install tox-travis codecov
+
+before_script: psql -U postgres -c "create extension postgis"
+
+script: tox
 
 after_success: codecov

requirements-dev.in

@@ -4,4 +4,5 @@ django-extensions
 ipython
 isort
 pydocstyle
+tox
 werkzeug

requirements-dev.txt

@@ -13,16 +13,20 @@ jedi==0.11.1              # via ipython
 parso==0.1.1              # via jedi
 pexpect==4.3.1            # via ipython
 pickleshare==0.7.4        # via ipython
+pluggy==0.6.0             # via tox
 prompt-toolkit==1.0.15    # via ipython
 ptyprocess==0.5.2         # via pexpect
+py==1.5.2                 # via tox
 pycodestyle==2.3.1        # via autopep8
 pydocstyle==2.1.1
 pyflakes==1.6.0           # via autoflake
 pygments==2.2.0           # via ipython
 simplegeneric==0.8.1      # via ipython
-six==1.11.0               # via django-extensions, prompt-toolkit, pydocstyle, traitlets
+six==1.11.0               # via django-extensions, prompt-toolkit, pydocstyle, tox, traitlets
 snowballstemmer==1.2.1    # via pydocstyle
+tox==2.9.1
 traitlets==4.3.2          # via ipython
 typing==3.6.4             # via django-extensions, ipython
+virtualenv==15.1.0        # via tox
 wcwidth==0.1.7            # via prompt-toolkit
 werkzeug==0.14.1

setup.cfg

@@ -7,7 +7,7 @@ exclude = *migrations*
 ignore = E309
 
 [flake8]
-exclude = migrations
+exclude = .tox,migrations
 max-line-length = 120
 max-complexity = 10
 
@@ -27,7 +27,7 @@ line_length=120
 multi_line_output=5
 not_skip=__init__.py
 order_by_type=false
-skip=migrations
+skip=migrations,.tox
 wrap_length=120
 
 [pydocstyle]

tox.ini

@@ -0,0 +1,23 @@
+[tox]
+envlist = py{34,35,36},requirements,style
+skipsdist = True
+
+[testenv]
+deps =
+    -rrequirements.txt
+    -rrequirements-test.txt
+passenv = CI
+setenv =
+    DEBUG=0
+    SECRET_KEY=topsecret123
+commands = py.test -ra -vvv --strict --cov {posargs}
+
+[testenv:requirements]
+basepython = python3.4
+deps = prequ==1.3.1
+commands = prequ check -v
+
+[testenv:style]
+basepython = python3.4
+deps = -rrequirements-test.txt
+commands = flake8 {posargs}