Add a regression test for generate_clean_orientation_image function

.github/workflows/test_and_deploy.yml

@@ -46,7 +46,7 @@ jobs:
       - name: Install Windows OpenGL
         if: runner.os == 'Windows'
         run: |
-          git clone --depth 1 git://github.com/pyvista/gl-ci-helpers.git
+          git clone --depth 1 https://github.com/pyvista/gl-ci-helpers.git
           powershell gl-ci-helpers/appveyor/install_opengl.ps1
 
       # note: if you need dependencies from conda, considering using

_tests/test_function.py

@@ -0,0 +1,13 @@
+import numpy as np
+from skimage.io import imread
+from pathlib import Path
+
+ROOT_DIR = Path(__file__).parent
+
+
+def test_generate_clean_orientation_image():
+    image = imread(ROOT_DIR / "liver_example.tif")
+    from napari_polo import generate_clean_orientation_image
+    result = generate_clean_orientation_image(image)
+    expected = imread(ROOT_DIR / "liver_example_cleaned.tif")
+    assert np.allclose(result, expected, atol=0.001)

tox.ini

@@ -22,7 +22,8 @@ platform =
 passenv = 
     CI
     GITHUB_ACTIONS
-    DISPLAY XAUTHORITY
+    DISPLAY
+    XAUTHORITY
     NUMPY_EXPERIMENTAL_ARRAY_FUNCTION
     PYVISTA_OFF_SCREEN
 deps = 
@@ -32,4 +33,5 @@ deps =
     # you can remove these if you don't use them
     qtpy
     pyqt5
+    scikit-image
 commands = pytest -v --color=yes --cov=napari_polo --cov-report=xml