add option to generate test coverage report without codecov

.github/workflows/test_tox.yml

@@ -158,6 +158,14 @@ jobs:
             a/
           cache-key: cache-${{ github.run_id }}
 
+  test_coverage_github:
+    uses: ./.github/workflows/tox.yml
+    with:
+      coverage: github
+      envs: |
+         - linux: py313-covcheck
+         - linux: py314-covcheck
+
   test_artifact_upload:
     uses: ./.github/workflows/tox.yml
     with:

docs/source/tox.rst

@@ -164,8 +164,8 @@ This option has no effect if ``pytest`` is ``false``.
 coverage
 ^^^^^^^^
 
-A space separated list of coverage providers to upload to. Currently
-only ``codecov`` is supported. Default is to not upload coverage
+A space separated list of coverage providers to upload to, either
+``codecov`` or ``github``. Default is to not upload coverage
 reports.
 
 See also, ``CODECOV_TOKEN`` secret.

pyproject.toml

@@ -26,6 +26,11 @@ concurrency = [
     "pytest-repeat>=0.9.3",
     "pytest-run-parallel>=0.4.4",
 ]
+covcheck = [
+    "coverage[toml] ; python_version < '3.11'",
+    "coverage>=7.11.3",
+    "pytest-cov>=7.0.0",
+]
 test = [
     "hypothesis>=6.113.0",
     "pytest>=8.3.5",

tools/tox_matrix.py

@@ -152,11 +152,14 @@ def get_matrix_item(env, global_libraries, global_string_parameters,
     # set pytest_flag
     item["pytest_flag"] = ""
     sep = r"\\" if platform == "windows" else "/"
-    if item["pytest"] == "true" and "codecov" in item.get("coverage", ""):
-        item["pytest_flag"] += (
-            rf"--cov-report=xml:${{GITHUB_WORKSPACE}}{sep}coverage.xml ")
-    if item["pytest"] == "true" and item["pytest-results-summary"] == "true":
-        item["pytest_flag"] += rf"--junitxml ${{GITHUB_WORKSPACE}}{sep}results.xml "
+    if item["pytest"] == "true":
+        if "codecov" in item.get("coverage", ""):
+            item["pytest_flag"] += (
+                rf"--cov --cov-report=xml:${{GITHUB_WORKSPACE}}{sep}coverage.xml "
+            )
+
+        if item["pytest-results-summary"] == "true":
+            item["pytest_flag"] += rf"--junitxml ${{GITHUB_WORKSPACE}}{sep}results.xml "
 
     # set libraries
     env_libraries = env.get("libraries")

tox.ini

@@ -7,6 +7,7 @@ envlist =
     py{,py}3{10,13}-python_version
     libraries
     cache-{setup,verify}
+    covcheck
 
 [testenv]
 allowlist_externals =
@@ -17,6 +18,9 @@ allowlist_externals =
     bash
     rolldice
     which
+dependency_groups =
+   covcheck: covcheck
+   covcheck: test
 skip_install = true
 passenv = MY_VAR
 commands =
@@ -48,6 +52,7 @@ commands =
     artifact-upload: bash -c "echo 'hello world' > test.txt"
     # Verify that freethreaded builds are using freethreaded interpreter
     py313t: python -c "import sys; assert 'free-threading' in sys.version"
+    covcheck: coverage run --parallel-mode -m pytest --pyargs test_package {posargs}
 
 [testenv:pep8]
 description = verify pep8