Update coverage collection

Author: PicoCentauri

.github/workflows/tests.yml

@@ -23,10 +23,12 @@ jobs:
         python-version: ${{ matrix.python-version }}
 
     - name: install tests dependencies
-      run: python -m pip install tox
+      run: python -m pip install tox coverage[toml]
 
     - name: run Python tests
-      run: tox -e tests
+      run: |
+        tox -e tests
+        coverage xml
 
     - name: upload to codecov.io
       uses: codecov/codecov-action@v5

pyproject.toml

@@ -86,7 +86,12 @@ known_first_party = "skmatter"
 
 [tool.pytest.ini_options]
 testpaths = ["tests"]
-addopts = ["--cov"]
+addopts = [
+    "--cov",
+    "--cov-append",
+    "--cov-report=",
+    "--import-mode=append",
+]
 
 [tool.ruff]
 exclude = ["docs/src/examples/"]

tox.ini

@@ -34,7 +34,6 @@ usedevelop = true
 changedir = tests
 deps =
     ase
-    coverage[toml]
     parameterized
     pytest
     pytest-cov
@@ -47,10 +46,6 @@ commands =
     # Run documentation tests
     pytest --doctest-modules --pyargs skmatter {posargs}
 
-# after executing the pytest assembles the coverage reports
-commands_post =
-    coverage xml
-
 [testenv:lint]
 description = Checks the code and doc for programmatic and stylistic errors
 skip_install = true