Skip embree test when embree is unavailable (#367)

Author: ebrahimebrahim

tests/test_skinseg.py

@@ -4,6 +4,7 @@
 
 import numpy as np
 import pytest
+import trimesh
 import vtk
 from scipy.linalg import expm
 from scipy.stats import skew
@@ -111,7 +112,15 @@ def test_create_closed_surface_from_labelmap():
     # isn't supposed to add a colormap or anything like that
     assert surface.GetPointData().GetScalars() is None
 
-@pytest.mark.parametrize("use_embree", [True, False])
+@pytest.mark.parametrize(
+        "use_embree",
+        [
+            False,
+            pytest.param(
+                True,
+                marks = pytest.mark.skipif(not trimesh.ray.has_embree, reason="Embree not available (needs Intel architecture)")
+            )
+        ])
 def test_spherical_interpolator_from_mesh(use_embree):
     """Check using a torus that the spherical interpolator behaves reasonably"""
     parametric_torus = vtk.vtkParametricTorus()