TST : test commutativity of cycler addition

Author: tacaswell

test_cycler.py

@@ -37,9 +37,11 @@ def test_compose():
     # addition
     yield _cycler_helper, c1+c2, 3, ['c', 'lw'], [list('rgb'), range(3)]
     yield _cycler_helper, c2+c1, 3, ['c', 'lw'], [list('rgb'), range(3)]
+    yield _cycles_equal, c2+c1, c1+c2
     # miss-matched add lengths
     yield _cycler_helper, c1+c3, 3, ['c', 'lw'], [list('rgb'), range(3)]
     yield _cycler_helper, c3+c1, 3, ['c', 'lw'], [list('rgb'), range(3)]
+    yield _cycles_equal, c3+c1, c1+c3
 
     # multiplication
     target = zip(*product(list('rgb'), range(3)))