X-Git-Url: https://git.madduck.net/etc/vim.git/blobdiff_plain/521d1b8129c2d83b4ab49270fe7473802259c2a2..33e3bb1e4e326713f85749705179da2e31520670:/tests/test_black.py

diff --git a/tests/test_black.py b/tests/test_black.py
index 91d1058..202fe23 100644
--- a/tests/test_black.py
+++ b/tests/test_black.py
@@ -940,8 +940,8 @@ class BlackTestCase(BlackBaseTestCase):
                 self.assertFormatEqual("j = [1, 2, 3]", "j = [1, 2, 3,]")
 
         out_str = "".join(out_lines)
-        self.assertTrue("Expected tree:" in out_str)
-        self.assertTrue("Actual tree:" in out_str)
+        self.assertIn("Expected tree:", out_str)
+        self.assertIn("Actual tree:", out_str)
         self.assertEqual("".join(err_lines), "")
 
     @event_loop()