use assert[Not]In where appropriate

A patch from Dave Malcolm.

1 files changed, 8 insertions, 0 deletions

diff --git a/Lib/test/test_dict.py b/Lib/test/test_dict.py
index 8984334..919fce8 100644
--- a/Lib/test/test_dict.py
+++ b/Lib/test/test_dict.py
@@ -35,7 +35,9 @@ class DictTest(unittest.TestCase):
         d = {'a': 1, 'b': 2}
         k = d.keys()
         self.assertTrue('a' in d)
+        self.assertIn('a', d)
         self.assertTrue('b' in d)
+        self.assertIn('b', d)
         self.assertRaises(TypeError, d.keys, None)
         self.assertEqual(repr(dict(a=1).keys()), "dict_keys(['a'])")
 
@@ -60,10 +62,14 @@ class DictTest(unittest.TestCase):
         d = {}
         self.assertTrue(not ('a' in d))
         self.assertTrue('a' not in d)
+        self.assertNotIn('a', d)
         d = {'a': 1, 'b': 2}
         self.assertTrue('a' in d)
+        self.assertIn('a', d)
         self.assertTrue('b' in d)
+        self.assertIn('b', d)
         self.assertTrue('c' not in d)
+        self.assertNotIn('c', d)
 
         self.assertRaises(TypeError, d.__contains__)
 
@@ -519,7 +525,9 @@ class DictTest(unittest.TestCase):
         self.assertEqual(d[1], 2)
         self.assertEqual(d[3], 4)
         self.assertTrue(2 not in d)
+        self.assertNotIn(2, d)
         self.assertTrue(2 not in d.keys())
+        self.assertNotIn(2, d.keys())
         self.assertEqual(d[2], 42)
         class E(dict):
             def __missing__(self, key):