Tests: Add tests for object.voxel_remesh

Pull Request: https://projects.blender.org/blender/blender/pulls/137378

tests/python/bl_object.py

@@ -19,6 +19,35 @@ class ClosestPointOnMeshTest(unittest.TestCase):
         self.assertEqual(ret_val[1], Vector((0.0, 0.0, 1.0)))
 
 
+class RemeshTest(unittest.TestCase):
+    def setUp(self):
+        bpy.ops.wm.read_factory_settings(use_empty=True)
+        bpy.ops.ed.undo_push()
+
+        bpy.ops.mesh.primitive_cube_add()
+        bpy.ops.sculpt.sculptmode_toggle()
+
+    def test_operator_remeshes_basic_cube(self):
+        """Test that using the operator with default settings creates a mesh with the expected amount of vertices."""
+        mesh = bpy.context.object.data
+        mesh.remesh_voxel_size = 0.1
+
+        ret_val = bpy.ops.object.voxel_remesh()
+
+        self.assertEqual({'FINISHED'}, ret_val)
+
+        num_vertices = mesh.attributes.domain_size('POINT')
+        self.assertEqual(num_vertices, 2648)
+
+    def test_operator_doesnt_run_with_0_voxel_size(self):
+        """Test that using the operator returns an error to the user with a voxel size of 0."""
+        mesh = bpy.context.object.data
+        mesh.remesh_voxel_size = 0
+
+        with self.assertRaises(RuntimeError):
+            bpy.ops.object.voxel_remesh()
+
+
 if __name__ == '__main__':
     import sys
     sys.argv = [__file__] + (sys.argv[sys.argv.index("--") + 1:] if "--" in sys.argv else [])