use pytest-xdist + install from pyproject instead of requirements

Author: esoteric-ephemera

.github/workflows/testing.yml

@@ -26,11 +26,10 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install --quiet -r requirements.txt -r requirements-dev.txt
-        pip install -e .
+        pip install -e '.[all]'
     - name: pytest
       run: |
-        pytest #--cov=pymatgen tests
+        pytest -n auto tests
     - name: Upload coverage reports to Codecov
       if: github.event_name == 'release' || (github.event_name == 'workflow_dispatch' && inputs.task == 'release')
       uses: codecov/codecov-action@v3

pyproject.toml

@@ -37,14 +37,14 @@ keywords = ["io", "validation", "dft", "vasp"]
 license = { text = "modified BSD" }
 name = "pymatgen-io-validation"
 readme = "README.md"
-requires-python = '>=3.8'
+requires-python = '>=3.11'
 
 [project.optional-dependencies]
 dev = ["pre-commit>=2.12.1"]
 #docs = ["jupyter-book>=0.13.1",]
 
-tests = ["pytest==8.4.2", "pytest-cov==7.0.0", "types-requests"]
-
+tests = ["pytest>=8.4.2", "pytest-cov>=7.0.0", "pytest-xdist>=3.8.0", "types-requests"]
+all = ["pymatgen-io-validation[dev,tests]"]
 
 [tool.setuptools.dynamic]
 readme = { file = ["README.md"] }

requirements-dev.txt

@@ -1,5 +1,6 @@
 pytest==8.4.2
 pytest-cov==7.0.0
+pytest-xdist==3.8.0
 coverage==7.10.6
 mypy==1.18.1
 pydocstyle==6.1.1