Test with tox

.github/workflows/test.yml

@@ -19,24 +19,23 @@ jobs:
           - '3.8'
           - '3.9'
         pytest-version:
-          - 4.6.11
-          - 5.4.3
-          - 6.2.4
-
+          - 4
+          - 5
+          - 6
         exclude:
           # pytest >= 5.x.x doesn't support Python 2.7
           - os: ubuntu-latest
             python-version: 2.7
-            pytest-version: 5.4.3
+            pytest-version: 5
           - os: ubuntu-latest
             python-version: 2.7
-            pytest-version: 6.2.4
+            pytest-version: 6
           - os: windows-latest
             python-version: 2.7
-            pytest-version: 5.4.3
+            pytest-version: 5
           - os: windows-latest
             python-version: 2.7
-            pytest-version: 6.2.4
+            pytest-version: 6
 
     runs-on: ${{ matrix.os }}
 
@@ -49,17 +48,16 @@ jobs:
       with:
         python-version: ${{ matrix.python-version }}
 
-    - name: Install dependencies
+    - name: Install test dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install -r requirements.txt
-        pip install pytest==${{ matrix.pytest-version }}
-
-    - name: Install itself
-      run: python setup.py install
+        pip install tox tox-gh-actions
 
-    - run: pytest
+    - name: Run test
+      run: tox
       env:
+        PLATFORM: ${{ matrix.os }}
+        PYTEST_MAJOR_VERSION: ${{ matrix.pytest-version }}
         PYTEST_PLUGINS: pytest_github_actions_annotate_failures
 
   post-test:

MANIFEST.in

@@ -1,3 +1,4 @@
 include *.py
 include LICENSE
 include CHANGELOG.md
+include tox.ini

tox.ini

@@ -0,0 +1,29 @@
+[tox]
+envlist = py27-pytest4-{linux,windows}, py{36,37,38,39}-pytest{4,5,6}-{linux,windows}
+
+[gh-actions]
+python =
+    2.7: py27
+    3.6: py36
+    3.7: py37
+    3.8: py38
+    3.9: py39
+
+[gh-actions:env]
+PLATFORM =
+    ubuntu-latest: linux
+    windows-latest: windows
+
+PYTEST_MAJOR_VERSION =
+    4: pytest4
+    5: pytest5
+    6: pytest6
+
+[testenv]
+deps =
+    -rrequirements.txt
+    pytest4: pytest>=4.0.0,<5.0.0
+    pytest5: pytest>=5.0.0,<6.0.0
+    pytest6: pytest>=6.0.0,<7.0.0
+
+commands = {envpython} -m pytest