Collect unit test coverage

Author: dflook

.config/.coveragerc

@@ -0,0 +1,16 @@
+[run]
+branch = true
+parallel = true
+relative_files = true
+context = ${COVERAGE_CONTEXT}
+
+[report]
+exclude_lines =
+    pragma: no cover
+    raise NotImplementedError
+    if TYPE_CHECKING:
+
+[paths]
+source =
+    src/python_minifier
+    */site-packages/python_minifier

.config/.coveragerc-legacy

@@ -0,0 +1,14 @@
+[run]
+branch = true
+parallel = true
+
+[report]
+exclude_lines =
+    pragma: no cover
+    raise NotImplementedError
+    if TYPE_CHECKING:
+
+[paths]
+source =
+    src/python_minifier
+    */site-packages/python_minifier

.github/workflows/test.yaml

@@ -34,6 +34,14 @@ jobs:
           run: |
             tox -r -e $(echo "${{ matrix.python }}" | tr -d .)
 
+      - name: Upload coverage
+        if: ${{ matrix.python != 'python3.3' && matrix.python != 'python3.4' }}
+        uses: actions/upload-artifact@v4
+        with:
+          name: coverage-${{ matrix.python }}
+          path: .coverage.*
+          include-hidden-files: true
+
   test-windows:
     name: Test Windows
     runs-on: windows-2025
@@ -155,3 +163,54 @@ jobs:
         with:
           dockerfile: ./docker/${{ matrix.dockerfile }}
           config: .config/hadolint.yaml
+
+  coverage-report:
+    name: Coverage Report
+    runs-on: ubuntu-24.04
+    needs: test
+    steps:
+      - name: Checkout
+        uses: actions/[email protected]
+        with:
+          fetch-depth: 1
+          show-progress: false
+          persist-credentials: false
+
+      - name: Download coverage artifacts
+        uses: actions/download-artifact@v4
+        with:
+          pattern: coverage-*
+          merge-multiple: true
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.14'
+
+      - name: Install coverage
+        run: pip install coverage
+
+      - name: Combine coverage
+        run: |
+          ls -la .coverage*
+          coverage combine --rcfile=.config/.coveragerc
+          ls -la .coverage*
+
+      - name: Upload combined coverage
+        uses: actions/upload-artifact@v4
+        with:
+          name: coverage-combined
+          path: .coverage
+          include-hidden-files: true
+
+      - name: Generate report
+        run: |
+          coverage report --rcfile=.config/.coveragerc --format=markdown 2>&1 | tee coverage-report.md
+          cat coverage-report.md >> "$GITHUB_STEP_SUMMARY"
+          coverage html --rcfile=.config/.coveragerc
+
+      - name: Upload HTML report
+        uses: actions/upload-artifact@v4
+        with:
+          name: coverage-html-report
+          path: htmlcov/

.gitignore

@@ -18,3 +18,4 @@ docs/source/transforms/*.min.py
 .circleci-config.yml
 .coverage
 .mypy_cache/
+.tox/

tox-windows.ini

@@ -1,154 +1,39 @@
 [tox]
-envlist = 3.8,3.9,3.10,3.11,3.12,3.13,3.14
+envlist = 2.7,3.6,3.7,3.8,3.9,3.10,3.11,3.12,3.13,3.14
 
 [testenv]
+deps = -r{toxinidir}/tox/python{envname}-windows-requirements.txt
 commands =
     pytest {posargs:test} --junitxml=junit-python{envname}.xml --verbose
 
 [testenv:2.7]
 basepython = python2.7
-deps =
-    atomicwrites==1.4.1
-    attrs==21.4.0
-    backports.functools-lru-cache==1.6.6
-    colorama==0.4.6
-    configparser==4.0.2
-    contextlib2==0.6.0.post1
-    funcsigs==1.0.2
-    importlib-metadata==2.1.3
-    more-itertools==5.0.0
-    packaging==20.9
-    pathlib2==2.3.7.post1
-    pluggy==0.13.1
-    py==1.11.0
-    pyparsing==2.4.7
-    pytest==4.6.11
-    PyYAML==5.4.1
-    scandir==1.10.0
-    six==1.17.0
-    typing==3.10.0.0
-    wcwidth==0.2.13
-    zipp==1.2.0
 
 [testenv:3.6]
 basepython = python3.6
-deps =
-    atomicwrites==1.4.1
-    attrs==22.2.0
-    colorama==0.4.5
-    importlib-metadata==4.8.3
-    iniconfig==1.1.1
-    packaging==21.3
-    pluggy==1.0.0
-    py==1.11.0
-    pyparsing==3.1.4
-    pytest==7.0.1
-    PyYAML==6.0.1
-    tomli==1.2.3
-    typing_extensions==4.1.1
-    zipp==3.6.0
 
 [testenv:3.7]
 basepython = python3.7
-deps =
-    colorama==0.4.6
-    exceptiongroup==1.3.0
-    importlib-metadata==6.7.0
-    iniconfig==2.0.0
-    packaging==24.0
-    pip==24.0
-    pluggy==1.2.0
-    pytest==7.4.4
-    PyYAML==6.0.1
-    setuptools==68.0.0
-    tomli==2.0.1
-    typing_extensions==4.7.1
-    wheel==0.42.0
-    zipp==3.15.0
 
 [testenv:3.8]
 basepython = python3.8
-deps =
-    atomicwrites==1.4.1
-    attrs==20.3.0
-    more-itertools==10.5.0
-    pluggy==0.13.1
-    py==1.11.0
-    pytest==4.5.0
-    PyYAML==5.1
-    setuptools==45.3.0
-    six==1.16.0
-    wcwidth==0.2.13
 
 [testenv:3.9]
 basepython = python3.9
-deps =
-    exceptiongroup==1.2.2
-    iniconfig==2.0.0
-    packaging==24.1
-    pluggy==1.5.0
-    pytest==8.3.3
-    PyYAML==6.0.2
-    tomli==2.0.1
 
 [testenv:3.10]
 basepython = python3.10
 setenv =
     PIP_CONSTRAINT={toxinidir}/tox/pyyaml-5.4.1-constraints.txt
-deps =
-    attrs==24.2.0
-    iniconfig==2.0.0
-    packaging==24.1
-    pluggy==0.13.1
-    py==1.11.0
-    pyperf==2.2.0
-    pytest==6.2.4
-    PyYAML==5.4.1
-    toml==0.10.2
 
 [testenv:3.11]
 basepython = python3.11
-deps =
-    attrs==24.2.0
-    iniconfig==2.0.0
-    packaging==24.1
-    pluggy==1.5.0
-    py==1.11.0
-    pyperf==2.4.1
-    pytest==7.1.2
-    PyYAML==6.0
-    tomli==2.0.1
 
 [testenv:3.12]
 basepython = python3.12
-deps =
-    iniconfig==2.0.0
-    packaging==24.1
-    pluggy==1.5.0
-    psutil==6.0.0
-    pyperf==2.6.1
-    pytest==7.4.2
-    PyYAML==6.0.1
 
 [testenv:3.13]
 basepython = python3.13
-deps =
-    iniconfig==2.0.0
-    packaging==24.1
-    pluggy==1.5.0
-    psutil==6.0.0
-    pyperf==2.7.0
-    pytest==8.3.3
-    PyYAML==6.0.2
 
 [testenv:3.14]
 basepython = python3.14
-deps =
-    colorama==0.4.6
-    iniconfig==2.1.0
-    packaging==25.0
-    pip==25.2
-    pluggy==1.6.0
-    Pygments==2.19.2
-    pytest==8.4.1
-    PyYAML==6.0.2