Move pytest-mypy-plugins tests into mypy jobs

pyproject.toml

@@ -37,14 +37,17 @@ Tidelift = "https://tidelift.com/subscription/pkg/pypi-attrs?utm_source=pypi-att
 
 
 [dependency-groups]
-tests-mypy = ['pytest-mypy-plugins; platform_python_implementation == "CPython" and python_version >= "3.10"']
+mypy = [
+  { include-group = "tests" },
+  'pytest-mypy-plugins; platform_python_implementation == "CPython" and python_version >= "3.10"'
+]
 tests = [
-  { include-group = "tests-mypy" },
   # For regression test to ensure cloudpickle compat doesn't break.
   'cloudpickle; platform_python_implementation == "CPython"',
   "hypothesis",
   "pympler",
   "pytest",
+  "pytest-xdist[psutil]",
 ]
 cov = [
   { include-group = "tests" },
@@ -162,6 +165,7 @@ filterwarnings = ["once::Warning", "ignore:::pympler[.*]"]
 [tool.coverage.run]
 parallel = true
 branch = true
+patch = ["subprocess"]
 source_pkgs = ["attr", "attrs"]
 
 [tool.coverage.paths]

tox.ini

@@ -21,9 +21,10 @@ package = wheel
 wheel_build_env = .pkg
 dependency_groups =
     tests: tests
-    mypy: tests-mypy
+    mypy: mypy
 commands =
-    tests: pytest {posargs}
+    tests: pytest {posargs:-n auto}
+    mypy: pytest -k test_mypy
     mypy: mypy tests/typing_example.py
     mypy: mypy src/attrs/__init__.pyi src/attr/__init__.pyi src/attr/_typing_compat.pyi src/attr/_version_info.pyi src/attr/converters.pyi src/attr/exceptions.pyi src/attr/filters.pyi src/attr/setters.pyi src/attr/validators.pyi
 
@@ -39,7 +40,7 @@ set_env =
     COVERAGE_PROCESS_START={toxinidir}/pyproject.toml
     PYTHONWARNINGS=d
 commands =
-    coverage run -m pytest {posargs}
+    coverage run -m pytest {posargs:-n auto}
 
 [testenv:coverage-report]
 # Keep base_python in-sync with .python-version-default