Correct coverage settings (#273)

.gitignore

@@ -127,3 +127,4 @@ dmypy.json
 # Pyre type checker
 .pyre/
 .test-results
+*.lcov

pyproject.toml

@@ -57,7 +57,11 @@ test = ["coverage", "pip-tools", "pytest>=7.2.0", "pytest-mock", "pytest-plus"]
 
 [tool.coverage.run]
 source = ["src"]
-branch = true
+# Do not use branch until bug is fixes:
+# https://github.com/nedbat/coveragepy/issues/605
+branch = false
+parallel = true
+concurrency = ["multiprocessing", "thread"]
 
 [tool.coverage.report]
 exclude_lines = ["pragma: no cover", "if TYPE_CHECKING:"]

tox.ini

@@ -35,12 +35,20 @@ commands =
   # We add coverage options but not making them mandatory as we do not want to force
   # pytest users to run coverage when they just want to run a single test with `pytest -k test`
   coverage run -m pytest {posargs:}
-  sh -c "coverage xml || true && coverage report"
+  sh -c "coverage combine -a -q --data-file=.coverage {toxworkdir}/.coverage.*"
+  # needed for upload to codecov.io
+  -sh -c "COVERAGE_FILE= coverage xml --ignore-errors -q --fail-under=0"
+  # needed for vscode integration due to https://github.com/ryanluker/vscode-coverage-gutters/issues/403
+  -sh -c "COVERAGE_FILE= coverage lcov --ignore-errors -q --fail-under=0"
+  sh -c "COVERAGE_FILE= coverage report"
   # We fail if files are modified at the end
   git diff --exit-code
+
 commands_pre =
   # safety measure to assure we do not accidentally run tests with broken dependencies
   {envpython} -m pip check
+  # cleaning needed to prevent errors between runs
+  sh -c "rm -f .coverage {toxworkdir}/.coverage.* 2>/dev/null || true"
 passenv =
   CURL_CA_BUNDLE  # https proxies, https://github.com/tox-dev/tox/issues/1437
   FORCE_COLOR
@@ -56,6 +64,7 @@ passenv =
 setenv =
   ANSIBLE_DEVEL_WARNING='false'
   COVERAGE_FILE = {env:COVERAGE_FILE:{toxworkdir}/.coverage.{envname}}
+  COVERAGE_PROCESS_START={toxinidir}/pyproject.toml
   PIP_DISABLE_PIP_VERSION_CHECK = 1
   PIP_CONSTRAINT = {toxinidir}/requirements.txt
   PRE_COMMIT_COLOR = always