tox: generate test code coverage info

Add a tox env to record the code coverage while running the tests.

Add a coverage job for github actions and upload the results to
codecov.io at the end.

Signed-off-by: Robin Jarry <[email protected]>

Author: rjarry

.github/workflows/ci.yml

@@ -55,6 +55,23 @@ jobs:
       - run: python -m pip install --upgrade tox
       - run: python -m tox -e ${{ matrix.toxenv }}
 
+  coverage:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-python@v2
+        with:
+          python-version: 3.x
+      - uses: actions/cache@v2
+        with:
+          path: ~/.cache/pip
+          key: pip
+          restore-keys: pip
+      - run: python -m pip install --upgrade pip setuptools wheel
+      - run: python -m pip install --upgrade tox codecov
+      - run: python -m tox -e coverage
+      - run: codecov
+
   deploy:
     needs: [lint, test]
     if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/v')

.gitignore

@@ -5,3 +5,6 @@ __pycache__/
 /build/
 /dist/
 /*.egg-info/
+/.coverage
+/htmlcov
+/coverage.xml

setup.cfg

@@ -7,11 +7,12 @@ group = root
 universal = false
 
 [coverage:run]
-omit = */tests/*
+include = libyang/*
+omit = tests/test_*
 
 [coverage:report]
-skip_covered = False
-ignore_errors = True
+skip_covered = false
+ignore_errors = true
 sort = Cover
 
 [flake8]

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = format,lint,py{35,36,37,38,py3},py3-{master,devel}
+envlist = format,lint,py{35,36,37,38,py3},py3-{master,devel},coverage
 skip_missing_interpreters = true
 isolated_build = true
 distdir = {toxinidir}/dist
@@ -16,6 +16,15 @@ setenv =
 install_command = {toxinidir}/tox-install.sh {envdir} {opts} {packages}
 commands = python -m unittest discover -c
 
+[testenv:coverage]
+changedir = .
+deps = coverage
+install_command = {toxinidir}/tox-install.sh {envdir} {opts} {packages}
+commands =
+	python -m coverage run -m unittest discover -c tests/
+	python -m coverage report
+	python -m coverage html
+
 [testenv:format]
 basepython = python3
 description = Format python code using isort and black.