Merge pull request #1 from ferdnyc/pytest

test coverage

.coveragerc

@@ -0,0 +1,16 @@
+# SPDX-FileCopyrightText: 2024 pydot contributors
+#
+# SPDX-License-Identifier: MIT
+
+[paths]
+source =
+  src
+  */site-packages
+
+[run]
+branch = true
+parallel = true
+source =
+  pydot
+  test
+

.github/workflows/CI.yml

@@ -53,7 +53,7 @@ jobs:
         with:
           python-version: "${{ matrix.python-version }}"
           cache: "pip"
-      - name: "Set up TEST_ERROR_DIR"
+      - name: "Set up environment"
         shell: bash
         run: |
           mkdir test_errors
@@ -62,6 +62,7 @@ jobs:
           else
             echo "TEST_ERROR_DIR=$(pwd -P)/test_errors" >> "$GITHUB_ENV"
           fi
+          echo "COVERAGE_FILE=.coverage.${{ runner.os }}.${{ matrix.python-version }}" >> "$GITHUB_ENV"
       - name: "Install graphviz (Linux)"
         if: runner.os == 'linux'
         run: sudo apt install graphviz
@@ -87,3 +88,31 @@ jobs:
           name: test-errors-${{ runner.os }}-${{ matrix.python-version }}
           path: ${{ env.TEST_ERROR_DIR }}
           if-no-files-found: ignore
+      - name: "Publish coverage-data artifact"
+        if: ${{ always() }}
+        uses: actions/upload-artifact@0b2256b8c012f0828dc542b3febcab082c67f72b # v4.3.4
+        with:
+          name: coverage-data-${{ runner.os }}-${{ matrix.python-version }}
+          path: .coverage.*
+          if-no-files-found: ignore
+
+  coverage:
+    runs-on: ubuntu-latest
+    needs: tests
+    steps:
+      - name: "Check out source"
+        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+        with:
+          fetch-depth: 0
+      - name: "Install coverage.py"
+        run: python -m pip install coverage
+      - name: "Download coverage-data artifacts"
+        uses: actions/download-artifact@v4
+        with:
+          pattern: coverage-data-*
+          merge-multiple: true
+      - name: "Combine coverage data"
+        run: coverage combine
+      - name: "Report aggregate coverage"
+        run: coverage report
+

pyproject.toml

@@ -70,7 +70,9 @@ tests = [
   'parameterized',
   'ruff',
   'tox',
-  'unittest-parallel',
+  'pytest',
+  'pytest-cov',
+  'pytest-xdist[psutil]',
 ]
 release = ['zest.releaser[recommended]']
 

setup.cfg

@@ -9,6 +9,9 @@ push-changes=no
 create-wheel=yes
 tag-format=v{version}
 
+[tool:pytest]
+testpaths = test
+
 [tox:tox]
 min_version = 4.6.3
 env_list =
@@ -25,9 +28,13 @@ package = wheel
 wheel_build_env = .pkg
 pass_env =
     TEST_ERROR_DIR
-commands = unittest-parallel --level test -vv
+setenv = 
+    DEFAULT_COVERAGE_FILE = .coverage.{envname}
+    COVERAGE_FILE = {env:COVERAGE_FILE:{env:DEFAULT_COVERAGE_FILE}}
+commands = pytest -n auto --cov
 
 [testenv:ruff]
+skip_install = true
 deps = ruff==0.4.8
 commands = 
     ruff format --diff .