fixed test function names so they get picked up by unit testing

tests/test_indexed_attributes.py

 import unittest
 import meshvis
+import numpy as np
 
 class IndexedAttributes(unittest.TestCase):
     
-    quad_verts = [[0, 0, 0], [1, 0, 0], [1, 1, 0], [0, 1, 0]]
-    quad_faces_tri = [[0, 1, 2], [0, 2, 3]]
+    quad_verts = np.array([[0, 0, 0], [1, 0, 0], [1, 1, 0], [0, 1, 0]])
+    quad_faces_tri = np.array([[0, 1, 2], [0, 2, 3]])
 
-    def point_attribute_tri(self):
+    def test_point_attribute_tri(self):
         attrib = meshvis.PointAttribute(['a', 'b', 'c', 'd'])
         resolved_attrib = meshvis.resolve_attributes(self.quad_faces_tri, [attrib])[0]
         self.assertEqual(len(resolved_attrib), 6)
-        self.assertListEqual(resolved_attrib, ['a', 'b', 'c', 'a', 'c', 'd'])
+        np.testing.assert_array_equal(resolved_attrib, ['a', 'b', 'c', 'a', 'c', 'd'])
 
-    def face_attribute_tri(self):
+    def test_face_attribute_tri(self):
         attrib = meshvis.FaceAttribute(['a', 'b'])
         resolved_attrib = meshvis.resolve_attributes(self.quad_faces_tri, [attrib])[0]
-        self.assertEqual(len(resolved_attrib), 2)
-        self.assertListEqual(resolved_attrib, ['a', 'b'])
+        self.assertEqual(len(resolved_attrib), 6)
+        np.testing.assert_array_equal(resolved_attrib, ['a', 'a', 'a', 'b', 'b', 'b'])
 
 
 if __name__ == '__main__':