Fix bad test

Author: james-d-mitchell

tests/test_dot.py

@@ -104,8 +104,7 @@ def test_dot_add_subgraph():
     assert len(d.subgraphs()) == 1
     assert d.subgraphs()[0].kind() == Dot.Kind.subgraph
     assert (
-        d.to_string()
-        == 'digraph pets {\n\nsubgraph cluster_pets {\n  label="pets"\n  '
+        d.to_string() == 'digraph pets {\n\nsubgraph cluster_pets {\n  label="pets"\n  '
         'cluster_pets_cat  [label="cat"]\n  cluster_pets_dog  '
         '[label="dog"]\n  cluster_pets_cat -> cluster_pets_dog  '
         '[constraint="false"]\n}\n  cat\n  dog\n  cat -> dog\n}'
@@ -144,6 +143,7 @@ def test_dot_colors():
 
 def test_dot_kind():
     d = Dot()
+    d.kind(Dot.Kind.digraph)
     assert d.kind() == Dot.Kind.digraph
     d.kind(Dot.Kind.graph)
     assert d.kind() == Dot.Kind.graph