Add tox as test runner

.travis.yml

@@ -1,16 +1,24 @@
 language: python
 
-python:
-  - "3.6"
-  - "3.7"
-  - "2.7"
-
 virtualenv:
   system_site_packages: false
 
 compiler:
   - gcc
 
+matrix:
+  include:
+    - python: 2.7
+      env: TOXENV=py27
+    - python: 3.6
+      env: TOXENV=py36
+    - python: 3.7
+      env: TOXENV=py37
+    - python: 3.8
+      env: TOXENV=py38
+    - python: 3.7
+      env: TOXENV=formatting
+
 os:
   - linux
 
@@ -43,6 +51,7 @@ install:
     - popd
     - git clone --branch $LIBRES_VERSION --depth 1 https://github.com/equinor/libres
     - pushd libres
+    - pip install -r requirements.txt --prefix=$INSTALL_DIR
     - source .libecl_version
     - export LIBRES_TEST_DATA_DIR="$(pwd)/test-data"
     - popd
@@ -53,9 +62,10 @@ install:
     - export PYTHONPATH=$INSTALL_DIR/lib/python$TRAVIS_PYTHON_VERSION/site-packages:$PYTHONPATH
     - PATH=$INSTALL_DIR/bin:$PATH
     - pip install ert/ --prefix=$INSTALL_DIR
+    - pip install tox
 
 script:
-  - python setup.py test
+  - tox
 
 deploy:
   - provider: pypi

setup.py

@@ -57,15 +57,7 @@ def package_files(directory):
         "stea",
         "pyscal>=0.4.0",
     ],
-    setup_requires=["pytest-runner", "setuptools_scm"],
-    tests_require=[
-        "pytest",
-        "mock",
-        'openpyxl<=2.6.4; python_version<="2.7"',
-        'openpyxl; python_version>="3.6"',
-        'black; python_version>="3.6"',
-    ],
-    test_suite="tests",
+    setup_requires=["setuptools_scm"],
     package_data={"": job_files},
     include_package_data=True,
 )

test_requirements.txt

@@ -1,3 +1,6 @@
 pytest
 mock
-black; python_version>="3.6"
+zipp<2; python_version<='2.7'
+configparser<5; python_version<='2.7'
+openpyxl<=2.6.4; python_version<="2.7"
+openpyxl; python_version>="3.6"

tox.ini

@@ -0,0 +1,24 @@
+[tox]
+envlist = 
+    py27
+    py37
+    formatting
+
+[testenv]
+deps = -rtest_requirements.txt
+# The two following lines are a bit ugly,
+# but is required until ert and libres are
+# pip installable
+passenv = PYTHONPATH LIBRES_TEST_DATA_DIR
+sitepackages = true
+commands = pytest
+
+[testenv:formatting]
+description = Invoke black to format the code
+deps =
+    black
+commands =
+    black --check semeio tests setup.py
+
+[pytest]
+addopts = tests