Migrate to tox for test environment standardization

Author: collinbanko

.coveragerc

@@ -0,0 +1,3 @@
+[report]
+omit =
+    */site-packages/*

.gitignore

@@ -1,13 +1,14 @@
-*.swp
 *.egg-info
+*.pyc
+*.swp
 .coverage
 .DS_Store
 .eggs
 .pytest_cache
-version.txt
-__pycache__
-_build
+.tox/
+__pycache__/
 build/
 dist/
 htmlcov/
 venv/
+version.txt

pyproject.toml

@@ -8,10 +8,3 @@ build-backend = "setuptools.build_meta"
 
 [tool.setuptools_scm]
 write_to = "blur_python_example/version.txt"
-
-[tool.pytest.ini_options]
-minversion = "6.0"
-addopts = "-ra -q --cov tests/"
-testpaths = [
-    "tests/",
-]

requirements-dev.txt

@@ -1,6 +1,8 @@
-black==20.8b1
-flake8==3.9.0
-flake8-bugbear==21.3.2
-pep8-naming==0.11.1
-pytest==6.2.2
-pytest-cov==2.11.1
+black
+covdefaults
+coverage
+flake8
+flake8-bugbear
+pep8-naming
+pytest
+tox

requirements.txt

@@ -1 +1 @@
-click==7.1.2
+click>=7.1.2

setup.cfg

@@ -37,9 +37,9 @@ install_requires =
 python_requires = >=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, !=3.5.*
 include_package_data = True
 setup_requires =
-    setuptools>=44.1.1
+    setuptools
     setuptools_scm[toml]>=4,<6
-    wheel>=0.36
+    wheel
 
 [options.packages.find]
 exclude = tests
@@ -49,15 +49,15 @@ console_scripts =
     echo_message = blur_python_example.cli:echo_message
 
 [options.extras_require]
-format =
-    black>=20.8b1
-lint =
-    flake8>=3.9.0
-    flake8-bugbear>=21.3.2
-    pep8-naming>=0.11.1
-test =
-    pytest>=6.2.2
-    pytest-cov>=2.11.1
+dev =
+    black
+    covdefaults
+    coverage
+    flake8
+    flake8-bugbear
+    pep8-naming
+    pytest
+    tox
 
 [options.package_data]
 * = version.txt
@@ -73,7 +73,12 @@ extend-ignore =
     E722
 max-line-length = 80
 exclude =
+    *.egg-info
+    *.pyc
+    .cache
+    .eggs
     .git
+    .tox
     __pycache__
     build
     dist

tox.ini

@@ -0,0 +1,35 @@
+[tox]
+envlist = py{27,36,37,38,39},black,flake8
+skip_missing_interpreters = True
+skipsdist = True
+
+[testenv]
+changedir = {toxinidir}
+setenv =
+    {py27}: PYTHONWARNINGS=ignore:DEPRECATION::pip._internal.cli.base_command
+skip_install = True
+deps =
+    -rrequirements.txt
+    covdefaults
+    coverage
+    pytest
+commands =
+    coverage erase
+    coverage run -m pytest {posargs:tests/}
+    coverage report
+
+[testenv:black]
+basepython = python3
+deps =
+    black
+commands =
+    black . --check
+
+[testenv:flake8]
+basepython = python3
+deps =
+    flake8
+    flake8-bugbear
+    pep8-naming
+commands =
+    flake8 .