diff --git a/.github/workflows/github-actions.yml b/.github/workflows/github-actions.yml
index 9ffa2ca..f8cc413 100644
--- a/.github/workflows/github-actions.yml
+++ b/.github/workflows/github-actions.yml
@@ -19,257 +19,1013 @@ jobs:
             toxpython: 'python3.9'
             tox_env: 'docs'
             os: 'ubuntu-latest'
-          - name: 'py37-cover (ubuntu)'
+          - name: 'py37-pytest71-nodist-cover (ubuntu)'
             python: '3.7'
             toxpython: 'python3.7'
             python_arch: 'x64'
-            tox_env: 'py37-cover,codecov'
+            tox_env: 'py37-pytest71-nodist-cover,codecov'
             os: 'ubuntu-latest'
-          - name: 'py37-cover (windows)'
+          - name: 'py37-pytest71-nodist-cover (windows)'
             python: '3.7'
             toxpython: 'python3.7'
             python_arch: 'x64'
-            tox_env: 'py37-cover,codecov'
+            tox_env: 'py37-pytest71-nodist-cover,codecov'
             os: 'windows-latest'
-          - name: 'py37-cover (macos)'
+          - name: 'py37-pytest71-nodist-cover (macos)'
             python: '3.7'
             toxpython: 'python3.7'
             python_arch: 'x64'
-            tox_env: 'py37-cover,codecov'
+            tox_env: 'py37-pytest71-nodist-cover,codecov'
             os: 'macos-latest'
-          - name: 'py37-nocov (ubuntu)'
+          - name: 'py37-pytest71-nodist-nocov (ubuntu)'
             python: '3.7'
             toxpython: 'python3.7'
             python_arch: 'x64'
-            tox_env: 'py37-nocov'
+            tox_env: 'py37-pytest71-nodist-nocov'
             os: 'ubuntu-latest'
-          - name: 'py37-nocov (windows)'
+          - name: 'py37-pytest71-nodist-nocov (windows)'
             python: '3.7'
             toxpython: 'python3.7'
             python_arch: 'x64'
-            tox_env: 'py37-nocov'
+            tox_env: 'py37-pytest71-nodist-nocov'
             os: 'windows-latest'
-          - name: 'py37-nocov (macos)'
+          - name: 'py37-pytest71-nodist-nocov (macos)'
             python: '3.7'
             toxpython: 'python3.7'
             python_arch: 'x64'
-            tox_env: 'py37-nocov'
+            tox_env: 'py37-pytest71-nodist-nocov'
             os: 'macos-latest'
-          - name: 'py38-cover (ubuntu)'
+          - name: 'py37-pytest71-xdist-cover (ubuntu)'
+            python: '3.7'
+            toxpython: 'python3.7'
+            python_arch: 'x64'
+            tox_env: 'py37-pytest71-xdist-cover,codecov'
+            os: 'ubuntu-latest'
+          - name: 'py37-pytest71-xdist-cover (windows)'
+            python: '3.7'
+            toxpython: 'python3.7'
+            python_arch: 'x64'
+            tox_env: 'py37-pytest71-xdist-cover,codecov'
+            os: 'windows-latest'
+          - name: 'py37-pytest71-xdist-cover (macos)'
+            python: '3.7'
+            toxpython: 'python3.7'
+            python_arch: 'x64'
+            tox_env: 'py37-pytest71-xdist-cover,codecov'
+            os: 'macos-latest'
+          - name: 'py37-pytest71-xdist-nocov (ubuntu)'
+            python: '3.7'
+            toxpython: 'python3.7'
+            python_arch: 'x64'
+            tox_env: 'py37-pytest71-xdist-nocov'
+            os: 'ubuntu-latest'
+          - name: 'py37-pytest71-xdist-nocov (windows)'
+            python: '3.7'
+            toxpython: 'python3.7'
+            python_arch: 'x64'
+            tox_env: 'py37-pytest71-xdist-nocov'
+            os: 'windows-latest'
+          - name: 'py37-pytest71-xdist-nocov (macos)'
+            python: '3.7'
+            toxpython: 'python3.7'
+            python_arch: 'x64'
+            tox_env: 'py37-pytest71-xdist-nocov'
+            os: 'macos-latest'
+          - name: 'py37-pytest72-nodist-cover (ubuntu)'
+            python: '3.7'
+            toxpython: 'python3.7'
+            python_arch: 'x64'
+            tox_env: 'py37-pytest72-nodist-cover,codecov'
+            os: 'ubuntu-latest'
+          - name: 'py37-pytest72-nodist-cover (windows)'
+            python: '3.7'
+            toxpython: 'python3.7'
+            python_arch: 'x64'
+            tox_env: 'py37-pytest72-nodist-cover,codecov'
+            os: 'windows-latest'
+          - name: 'py37-pytest72-nodist-cover (macos)'
+            python: '3.7'
+            toxpython: 'python3.7'
+            python_arch: 'x64'
+            tox_env: 'py37-pytest72-nodist-cover,codecov'
+            os: 'macos-latest'
+          - name: 'py37-pytest72-nodist-nocov (ubuntu)'
+            python: '3.7'
+            toxpython: 'python3.7'
+            python_arch: 'x64'
+            tox_env: 'py37-pytest72-nodist-nocov'
+            os: 'ubuntu-latest'
+          - name: 'py37-pytest72-nodist-nocov (windows)'
+            python: '3.7'
+            toxpython: 'python3.7'
+            python_arch: 'x64'
+            tox_env: 'py37-pytest72-nodist-nocov'
+            os: 'windows-latest'
+          - name: 'py37-pytest72-nodist-nocov (macos)'
+            python: '3.7'
+            toxpython: 'python3.7'
+            python_arch: 'x64'
+            tox_env: 'py37-pytest72-nodist-nocov'
+            os: 'macos-latest'
+          - name: 'py37-pytest72-xdist-cover (ubuntu)'
+            python: '3.7'
+            toxpython: 'python3.7'
+            python_arch: 'x64'
+            tox_env: 'py37-pytest72-xdist-cover,codecov'
+            os: 'ubuntu-latest'
+          - name: 'py37-pytest72-xdist-cover (windows)'
+            python: '3.7'
+            toxpython: 'python3.7'
+            python_arch: 'x64'
+            tox_env: 'py37-pytest72-xdist-cover,codecov'
+            os: 'windows-latest'
+          - name: 'py37-pytest72-xdist-cover (macos)'
+            python: '3.7'
+            toxpython: 'python3.7'
+            python_arch: 'x64'
+            tox_env: 'py37-pytest72-xdist-cover,codecov'
+            os: 'macos-latest'
+          - name: 'py37-pytest72-xdist-nocov (ubuntu)'
+            python: '3.7'
+            toxpython: 'python3.7'
+            python_arch: 'x64'
+            tox_env: 'py37-pytest72-xdist-nocov'
+            os: 'ubuntu-latest'
+          - name: 'py37-pytest72-xdist-nocov (windows)'
+            python: '3.7'
+            toxpython: 'python3.7'
+            python_arch: 'x64'
+            tox_env: 'py37-pytest72-xdist-nocov'
+            os: 'windows-latest'
+          - name: 'py37-pytest72-xdist-nocov (macos)'
+            python: '3.7'
+            toxpython: 'python3.7'
+            python_arch: 'x64'
+            tox_env: 'py37-pytest72-xdist-nocov'
+            os: 'macos-latest'
+          - name: 'py38-pytest71-nodist-cover (ubuntu)'
+            python: '3.8'
+            toxpython: 'python3.8'
+            python_arch: 'x64'
+            tox_env: 'py38-pytest71-nodist-cover,codecov'
+            os: 'ubuntu-latest'
+          - name: 'py38-pytest71-nodist-cover (windows)'
+            python: '3.8'
+            toxpython: 'python3.8'
+            python_arch: 'x64'
+            tox_env: 'py38-pytest71-nodist-cover,codecov'
+            os: 'windows-latest'
+          - name: 'py38-pytest71-nodist-cover (macos)'
+            python: '3.8'
+            toxpython: 'python3.8'
+            python_arch: 'x64'
+            tox_env: 'py38-pytest71-nodist-cover,codecov'
+            os: 'macos-latest'
+          - name: 'py38-pytest71-nodist-nocov (ubuntu)'
+            python: '3.8'
+            toxpython: 'python3.8'
+            python_arch: 'x64'
+            tox_env: 'py38-pytest71-nodist-nocov'
+            os: 'ubuntu-latest'
+          - name: 'py38-pytest71-nodist-nocov (windows)'
+            python: '3.8'
+            toxpython: 'python3.8'
+            python_arch: 'x64'
+            tox_env: 'py38-pytest71-nodist-nocov'
+            os: 'windows-latest'
+          - name: 'py38-pytest71-nodist-nocov (macos)'
+            python: '3.8'
+            toxpython: 'python3.8'
+            python_arch: 'x64'
+            tox_env: 'py38-pytest71-nodist-nocov'
+            os: 'macos-latest'
+          - name: 'py38-pytest71-xdist-cover (ubuntu)'
+            python: '3.8'
+            toxpython: 'python3.8'
+            python_arch: 'x64'
+            tox_env: 'py38-pytest71-xdist-cover,codecov'
+            os: 'ubuntu-latest'
+          - name: 'py38-pytest71-xdist-cover (windows)'
+            python: '3.8'
+            toxpython: 'python3.8'
+            python_arch: 'x64'
+            tox_env: 'py38-pytest71-xdist-cover,codecov'
+            os: 'windows-latest'
+          - name: 'py38-pytest71-xdist-cover (macos)'
+            python: '3.8'
+            toxpython: 'python3.8'
+            python_arch: 'x64'
+            tox_env: 'py38-pytest71-xdist-cover,codecov'
+            os: 'macos-latest'
+          - name: 'py38-pytest71-xdist-nocov (ubuntu)'
+            python: '3.8'
+            toxpython: 'python3.8'
+            python_arch: 'x64'
+            tox_env: 'py38-pytest71-xdist-nocov'
+            os: 'ubuntu-latest'
+          - name: 'py38-pytest71-xdist-nocov (windows)'
+            python: '3.8'
+            toxpython: 'python3.8'
+            python_arch: 'x64'
+            tox_env: 'py38-pytest71-xdist-nocov'
+            os: 'windows-latest'
+          - name: 'py38-pytest71-xdist-nocov (macos)'
+            python: '3.8'
+            toxpython: 'python3.8'
+            python_arch: 'x64'
+            tox_env: 'py38-pytest71-xdist-nocov'
+            os: 'macos-latest'
+          - name: 'py38-pytest72-nodist-cover (ubuntu)'
+            python: '3.8'
+            toxpython: 'python3.8'
+            python_arch: 'x64'
+            tox_env: 'py38-pytest72-nodist-cover,codecov'
+            os: 'ubuntu-latest'
+          - name: 'py38-pytest72-nodist-cover (windows)'
+            python: '3.8'
+            toxpython: 'python3.8'
+            python_arch: 'x64'
+            tox_env: 'py38-pytest72-nodist-cover,codecov'
+            os: 'windows-latest'
+          - name: 'py38-pytest72-nodist-cover (macos)'
+            python: '3.8'
+            toxpython: 'python3.8'
+            python_arch: 'x64'
+            tox_env: 'py38-pytest72-nodist-cover,codecov'
+            os: 'macos-latest'
+          - name: 'py38-pytest72-nodist-nocov (ubuntu)'
+            python: '3.8'
+            toxpython: 'python3.8'
+            python_arch: 'x64'
+            tox_env: 'py38-pytest72-nodist-nocov'
+            os: 'ubuntu-latest'
+          - name: 'py38-pytest72-nodist-nocov (windows)'
+            python: '3.8'
+            toxpython: 'python3.8'
+            python_arch: 'x64'
+            tox_env: 'py38-pytest72-nodist-nocov'
+            os: 'windows-latest'
+          - name: 'py38-pytest72-nodist-nocov (macos)'
+            python: '3.8'
+            toxpython: 'python3.8'
+            python_arch: 'x64'
+            tox_env: 'py38-pytest72-nodist-nocov'
+            os: 'macos-latest'
+          - name: 'py38-pytest72-xdist-cover (ubuntu)'
             python: '3.8'
             toxpython: 'python3.8'
             python_arch: 'x64'
-            tox_env: 'py38-cover,codecov'
+            tox_env: 'py38-pytest72-xdist-cover,codecov'
             os: 'ubuntu-latest'
-          - name: 'py38-cover (windows)'
+          - name: 'py38-pytest72-xdist-cover (windows)'
             python: '3.8'
             toxpython: 'python3.8'
             python_arch: 'x64'
-            tox_env: 'py38-cover,codecov'
+            tox_env: 'py38-pytest72-xdist-cover,codecov'
             os: 'windows-latest'
-          - name: 'py38-cover (macos)'
+          - name: 'py38-pytest72-xdist-cover (macos)'
             python: '3.8'
             toxpython: 'python3.8'
             python_arch: 'x64'
-            tox_env: 'py38-cover,codecov'
+            tox_env: 'py38-pytest72-xdist-cover,codecov'
             os: 'macos-latest'
-          - name: 'py38-nocov (ubuntu)'
+          - name: 'py38-pytest72-xdist-nocov (ubuntu)'
             python: '3.8'
             toxpython: 'python3.8'
             python_arch: 'x64'
-            tox_env: 'py38-nocov'
+            tox_env: 'py38-pytest72-xdist-nocov'
             os: 'ubuntu-latest'
-          - name: 'py38-nocov (windows)'
+          - name: 'py38-pytest72-xdist-nocov (windows)'
             python: '3.8'
             toxpython: 'python3.8'
             python_arch: 'x64'
-            tox_env: 'py38-nocov'
+            tox_env: 'py38-pytest72-xdist-nocov'
             os: 'windows-latest'
-          - name: 'py38-nocov (macos)'
+          - name: 'py38-pytest72-xdist-nocov (macos)'
             python: '3.8'
             toxpython: 'python3.8'
             python_arch: 'x64'
-            tox_env: 'py38-nocov'
+            tox_env: 'py38-pytest72-xdist-nocov'
+            os: 'macos-latest'
+          - name: 'py39-pytest71-nodist-cover (ubuntu)'
+            python: '3.9'
+            toxpython: 'python3.9'
+            python_arch: 'x64'
+            tox_env: 'py39-pytest71-nodist-cover,codecov'
+            os: 'ubuntu-latest'
+          - name: 'py39-pytest71-nodist-cover (windows)'
+            python: '3.9'
+            toxpython: 'python3.9'
+            python_arch: 'x64'
+            tox_env: 'py39-pytest71-nodist-cover,codecov'
+            os: 'windows-latest'
+          - name: 'py39-pytest71-nodist-cover (macos)'
+            python: '3.9'
+            toxpython: 'python3.9'
+            python_arch: 'x64'
+            tox_env: 'py39-pytest71-nodist-cover,codecov'
+            os: 'macos-latest'
+          - name: 'py39-pytest71-nodist-nocov (ubuntu)'
+            python: '3.9'
+            toxpython: 'python3.9'
+            python_arch: 'x64'
+            tox_env: 'py39-pytest71-nodist-nocov'
+            os: 'ubuntu-latest'
+          - name: 'py39-pytest71-nodist-nocov (windows)'
+            python: '3.9'
+            toxpython: 'python3.9'
+            python_arch: 'x64'
+            tox_env: 'py39-pytest71-nodist-nocov'
+            os: 'windows-latest'
+          - name: 'py39-pytest71-nodist-nocov (macos)'
+            python: '3.9'
+            toxpython: 'python3.9'
+            python_arch: 'x64'
+            tox_env: 'py39-pytest71-nodist-nocov'
+            os: 'macos-latest'
+          - name: 'py39-pytest71-xdist-cover (ubuntu)'
+            python: '3.9'
+            toxpython: 'python3.9'
+            python_arch: 'x64'
+            tox_env: 'py39-pytest71-xdist-cover,codecov'
+            os: 'ubuntu-latest'
+          - name: 'py39-pytest71-xdist-cover (windows)'
+            python: '3.9'
+            toxpython: 'python3.9'
+            python_arch: 'x64'
+            tox_env: 'py39-pytest71-xdist-cover,codecov'
+            os: 'windows-latest'
+          - name: 'py39-pytest71-xdist-cover (macos)'
+            python: '3.9'
+            toxpython: 'python3.9'
+            python_arch: 'x64'
+            tox_env: 'py39-pytest71-xdist-cover,codecov'
+            os: 'macos-latest'
+          - name: 'py39-pytest71-xdist-nocov (ubuntu)'
+            python: '3.9'
+            toxpython: 'python3.9'
+            python_arch: 'x64'
+            tox_env: 'py39-pytest71-xdist-nocov'
+            os: 'ubuntu-latest'
+          - name: 'py39-pytest71-xdist-nocov (windows)'
+            python: '3.9'
+            toxpython: 'python3.9'
+            python_arch: 'x64'
+            tox_env: 'py39-pytest71-xdist-nocov'
+            os: 'windows-latest'
+          - name: 'py39-pytest71-xdist-nocov (macos)'
+            python: '3.9'
+            toxpython: 'python3.9'
+            python_arch: 'x64'
+            tox_env: 'py39-pytest71-xdist-nocov'
+            os: 'macos-latest'
+          - name: 'py39-pytest72-nodist-cover (ubuntu)'
+            python: '3.9'
+            toxpython: 'python3.9'
+            python_arch: 'x64'
+            tox_env: 'py39-pytest72-nodist-cover,codecov'
+            os: 'ubuntu-latest'
+          - name: 'py39-pytest72-nodist-cover (windows)'
+            python: '3.9'
+            toxpython: 'python3.9'
+            python_arch: 'x64'
+            tox_env: 'py39-pytest72-nodist-cover,codecov'
+            os: 'windows-latest'
+          - name: 'py39-pytest72-nodist-cover (macos)'
+            python: '3.9'
+            toxpython: 'python3.9'
+            python_arch: 'x64'
+            tox_env: 'py39-pytest72-nodist-cover,codecov'
+            os: 'macos-latest'
+          - name: 'py39-pytest72-nodist-nocov (ubuntu)'
+            python: '3.9'
+            toxpython: 'python3.9'
+            python_arch: 'x64'
+            tox_env: 'py39-pytest72-nodist-nocov'
+            os: 'ubuntu-latest'
+          - name: 'py39-pytest72-nodist-nocov (windows)'
+            python: '3.9'
+            toxpython: 'python3.9'
+            python_arch: 'x64'
+            tox_env: 'py39-pytest72-nodist-nocov'
+            os: 'windows-latest'
+          - name: 'py39-pytest72-nodist-nocov (macos)'
+            python: '3.9'
+            toxpython: 'python3.9'
+            python_arch: 'x64'
+            tox_env: 'py39-pytest72-nodist-nocov'
             os: 'macos-latest'
-          - name: 'py39-cover (ubuntu)'
+          - name: 'py39-pytest72-xdist-cover (ubuntu)'
             python: '3.9'
             toxpython: 'python3.9'
             python_arch: 'x64'
-            tox_env: 'py39-cover,codecov'
+            tox_env: 'py39-pytest72-xdist-cover,codecov'
             os: 'ubuntu-latest'
-          - name: 'py39-cover (windows)'
+          - name: 'py39-pytest72-xdist-cover (windows)'
             python: '3.9'
             toxpython: 'python3.9'
             python_arch: 'x64'
-            tox_env: 'py39-cover,codecov'
+            tox_env: 'py39-pytest72-xdist-cover,codecov'
             os: 'windows-latest'
-          - name: 'py39-cover (macos)'
+          - name: 'py39-pytest72-xdist-cover (macos)'
             python: '3.9'
             toxpython: 'python3.9'
             python_arch: 'x64'
-            tox_env: 'py39-cover,codecov'
+            tox_env: 'py39-pytest72-xdist-cover,codecov'
             os: 'macos-latest'
-          - name: 'py39-nocov (ubuntu)'
+          - name: 'py39-pytest72-xdist-nocov (ubuntu)'
             python: '3.9'
             toxpython: 'python3.9'
             python_arch: 'x64'
-            tox_env: 'py39-nocov'
+            tox_env: 'py39-pytest72-xdist-nocov'
             os: 'ubuntu-latest'
-          - name: 'py39-nocov (windows)'
+          - name: 'py39-pytest72-xdist-nocov (windows)'
             python: '3.9'
             toxpython: 'python3.9'
             python_arch: 'x64'
-            tox_env: 'py39-nocov'
+            tox_env: 'py39-pytest72-xdist-nocov'
             os: 'windows-latest'
-          - name: 'py39-nocov (macos)'
+          - name: 'py39-pytest72-xdist-nocov (macos)'
             python: '3.9'
             toxpython: 'python3.9'
             python_arch: 'x64'
-            tox_env: 'py39-nocov'
+            tox_env: 'py39-pytest72-xdist-nocov'
+            os: 'macos-latest'
+          - name: 'py310-pytest71-nodist-cover (ubuntu)'
+            python: '3.10'
+            toxpython: 'python3.10'
+            python_arch: 'x64'
+            tox_env: 'py310-pytest71-nodist-cover,codecov'
+            os: 'ubuntu-latest'
+          - name: 'py310-pytest71-nodist-cover (windows)'
+            python: '3.10'
+            toxpython: 'python3.10'
+            python_arch: 'x64'
+            tox_env: 'py310-pytest71-nodist-cover,codecov'
+            os: 'windows-latest'
+          - name: 'py310-pytest71-nodist-cover (macos)'
+            python: '3.10'
+            toxpython: 'python3.10'
+            python_arch: 'x64'
+            tox_env: 'py310-pytest71-nodist-cover,codecov'
+            os: 'macos-latest'
+          - name: 'py310-pytest71-nodist-nocov (ubuntu)'
+            python: '3.10'
+            toxpython: 'python3.10'
+            python_arch: 'x64'
+            tox_env: 'py310-pytest71-nodist-nocov'
+            os: 'ubuntu-latest'
+          - name: 'py310-pytest71-nodist-nocov (windows)'
+            python: '3.10'
+            toxpython: 'python3.10'
+            python_arch: 'x64'
+            tox_env: 'py310-pytest71-nodist-nocov'
+            os: 'windows-latest'
+          - name: 'py310-pytest71-nodist-nocov (macos)'
+            python: '3.10'
+            toxpython: 'python3.10'
+            python_arch: 'x64'
+            tox_env: 'py310-pytest71-nodist-nocov'
+            os: 'macos-latest'
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+          - name: 'pypy39-pytest71-xdist-cover (windows)'
+            python: 'pypy-3.9'
+            toxpython: 'pypy3.9'
+            python_arch: 'x64'
+            tox_env: 'pypy39-pytest71-xdist-cover,codecov'
+            os: 'windows-latest'
+          - name: 'pypy39-pytest71-xdist-cover (macos)'
+            python: 'pypy-3.9'
+            toxpython: 'pypy3.9'
+            python_arch: 'x64'
+            tox_env: 'pypy39-pytest71-xdist-cover,codecov'
+            os: 'macos-latest'
+          - name: 'pypy39-pytest71-xdist-nocov (ubuntu)'
+            python: 'pypy-3.9'
+            toxpython: 'pypy3.9'
+            python_arch: 'x64'
+            tox_env: 'pypy39-pytest71-xdist-nocov'
+            os: 'ubuntu-latest'
+          - name: 'pypy39-pytest71-xdist-nocov (windows)'
+            python: 'pypy-3.9'
+            toxpython: 'pypy3.9'
+            python_arch: 'x64'
+            tox_env: 'pypy39-pytest71-xdist-nocov'
+            os: 'windows-latest'
+          - name: 'pypy39-pytest71-xdist-nocov (macos)'
+            python: 'pypy-3.9'
+            toxpython: 'pypy3.9'
+            python_arch: 'x64'
+            tox_env: 'pypy39-pytest71-xdist-nocov'
+            os: 'macos-latest'
+          - name: 'pypy39-pytest72-nodist-cover (ubuntu)'
+            python: 'pypy-3.9'
+            toxpython: 'pypy3.9'
+            python_arch: 'x64'
+            tox_env: 'pypy39-pytest72-nodist-cover,codecov'
+            os: 'ubuntu-latest'
+          - name: 'pypy39-pytest72-nodist-cover (windows)'
+            python: 'pypy-3.9'
+            toxpython: 'pypy3.9'
+            python_arch: 'x64'
+            tox_env: 'pypy39-pytest72-nodist-cover,codecov'
+            os: 'windows-latest'
+          - name: 'pypy39-pytest72-nodist-cover (macos)'
+            python: 'pypy-3.9'
+            toxpython: 'pypy3.9'
+            python_arch: 'x64'
+            tox_env: 'pypy39-pytest72-nodist-cover,codecov'
+            os: 'macos-latest'
+          - name: 'pypy39-pytest72-nodist-nocov (ubuntu)'
+            python: 'pypy-3.9'
+            toxpython: 'pypy3.9'
+            python_arch: 'x64'
+            tox_env: 'pypy39-pytest72-nodist-nocov'
+            os: 'ubuntu-latest'
+          - name: 'pypy39-pytest72-nodist-nocov (windows)'
+            python: 'pypy-3.9'
+            toxpython: 'pypy3.9'
+            python_arch: 'x64'
+            tox_env: 'pypy39-pytest72-nodist-nocov'
+            os: 'windows-latest'
+          - name: 'pypy39-pytest72-nodist-nocov (macos)'
+            python: 'pypy-3.9'
+            toxpython: 'pypy3.9'
+            python_arch: 'x64'
+            tox_env: 'pypy39-pytest72-nodist-nocov'
             os: 'macos-latest'
-          - name: 'pypy39-cover (ubuntu)'
+          - name: 'pypy39-pytest72-xdist-cover (ubuntu)'
             python: 'pypy-3.9'
             toxpython: 'pypy3.9'
             python_arch: 'x64'
-            tox_env: 'pypy39-cover,codecov'
+            tox_env: 'pypy39-pytest72-xdist-cover,codecov'
             os: 'ubuntu-latest'
-          - name: 'pypy39-cover (windows)'
+          - name: 'pypy39-pytest72-xdist-cover (windows)'
             python: 'pypy-3.9'
             toxpython: 'pypy3.9'
             python_arch: 'x64'
-            tox_env: 'pypy39-cover,codecov'
+            tox_env: 'pypy39-pytest72-xdist-cover,codecov'
             os: 'windows-latest'
-          - name: 'pypy39-cover (macos)'
+          - name: 'pypy39-pytest72-xdist-cover (macos)'
             python: 'pypy-3.9'
             toxpython: 'pypy3.9'
             python_arch: 'x64'
-            tox_env: 'pypy39-cover,codecov'
+            tox_env: 'pypy39-pytest72-xdist-cover,codecov'
             os: 'macos-latest'
-          - name: 'pypy39-nocov (ubuntu)'
+          - name: 'pypy39-pytest72-xdist-nocov (ubuntu)'
             python: 'pypy-3.9'
             toxpython: 'pypy3.9'
             python_arch: 'x64'
-            tox_env: 'pypy39-nocov'
+            tox_env: 'pypy39-pytest72-xdist-nocov'
             os: 'ubuntu-latest'
-          - name: 'pypy39-nocov (windows)'
+          - name: 'pypy39-pytest72-xdist-nocov (windows)'
             python: 'pypy-3.9'
             toxpython: 'pypy3.9'
             python_arch: 'x64'
-            tox_env: 'pypy39-nocov'
+            tox_env: 'pypy39-pytest72-xdist-nocov'
             os: 'windows-latest'
-          - name: 'pypy39-nocov (macos)'
+          - name: 'pypy39-pytest72-xdist-nocov (macos)'
             python: 'pypy-3.9'
             toxpython: 'pypy3.9'
             python_arch: 'x64'
-            tox_env: 'pypy39-nocov'
+            tox_env: 'pypy39-pytest72-xdist-nocov'
             os: 'macos-latest'
     steps:
     - uses: actions/checkout@v2