Test with tox and upload coverage to Codecov

.coveragerc

@@ -0,0 +1,15 @@
+# .coveragerc to control coverage.py
+
+[report]
+# Regexes for lines to exclude from consideration
+exclude_lines =
+    # Have to re-enable the standard pragma:
+    pragma: no cover
+
+    # Don't complain if non-runnable code isn't run:
+    if __name__ == .__main__.:
+    def cherry_pick_cli
+
+[run]
+omit =
+    cherry_picker/__main__.py

.github/workflows/main.yml

@@ -2,6 +2,9 @@ name: tests
 
 on: [push, pull_request, workflow_dispatch]
 
+env:
+  FORCE_COLOR: 1
+
 jobs:
   test:
     strategy:
@@ -22,17 +25,22 @@ jobs:
           # fetch all branches and tags
           # ref actions/checkout#448
           fetch-depth: 0
-      - name: Setup Python
-        uses: actions/setup-python@v3
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python }}
           cache: pip
-          cache-dependency-path: .github/workflows/main.yml
-      - name: Install package
+          cache-dependency-path: pyproject.toml
+      - name: Install tox
         run: |
-          python -m pip install .[dev]
+          python -m pip install tox
       - name: Run tests
-        run: pytest
+        run: tox -e py
+      - name: Upload coverage
+        uses: codecov/codecov-action@v3
+        with:
+          flags: ${{ matrix.os }}
+          name: ${{ matrix.os }} Python ${{ matrix.python-version }}
 
   release:
     needs: test
@@ -42,7 +50,7 @@ jobs:
     steps:
       - uses: actions/checkout@v3
       - name: Setup Python
-        uses: actions/setup-python@v3
+        uses: actions/setup-python@v4
         with:
           python-version: "3.10"
           cache: pip

pyproject.toml

@@ -19,4 +19,4 @@ requires-python = ">=3.7"
 cherry_picker = "cherry_picker.cherry_picker:cherry_pick_cli"
 
 [tool.flit.metadata.requires-extra]
-dev = ["pytest"]
+dev = ["pytest", "pytest-cov"]

tox.ini

@@ -0,0 +1,12 @@
+[tox]
+envlist =
+    py{310, 39, 38, 37}
+isolated_build = true
+
+[testenv]
+passenv =
+    FORCE_COLOR
+extras =
+    dev
+commands =
+    {envpython} -m pytest --cov cherry_picker --cov-report html --cov-report term --cov-report xml {posargs}