Add tox config to pyproject.toml

pyproject.toml

@@ -102,3 +102,39 @@ include = ["cellfinder*"]
 include = ["cellfinder*"]
 
 [tool.setuptools_scm]
+
+[tool.tox]
+legacy_tox_ini = """
+# For more information about tox, see https://tox.readthedocs.io/en/latest/
+[tox]
+envlist = py{39,310}
+isolated_build = true
+
+[gh-actions]
+python =
+    3.9: py39
+    3.10: py310
+
+[testenv]
+commands = python -m pytest -v --color=yes
+deps =
+    pytest
+    pytest-cov
+    pytest-lazy-fixture
+    pytest-mock
+    pytest-timeout
+    # Even though napari is a requirement for cellfinder.napari, we have to
+    # ensure it is installed with the default Qt backend here.
+    napari[all]
+    pytest-qt
+extras =
+    napari
+passenv =
+    NUMBA_DISABLE_JIT
+    CI
+    GITHUB_ACTIONS
+    DISPLAY
+    XAUTHORITY
+    NUMPY_EXPERIMENTAL_ARRAY_FUNCTION
+    PYVISTA_OFF_SCREEN
+"""