use assert[Not]In where appropriate

A patch from Dave Malcolm.

1 files changed, 16 insertions, 16 deletions

diff --git a/Lib/test/test_contains.py b/Lib/test/test_contains.py
index 622dfd4..a667a16 100644
--- a/Lib/test/test_contains.py
+++ b/Lib/test/test_contains.py
@@ -20,19 +20,19 @@ class TestContains(unittest.TestCase):
         a = base_set(1)
         b = myset(1)
         c = seq(1)
-        self.assertTrue(1 in b)
-        self.assertTrue(0 not in b)
-        self.assertTrue(1 in c)
-        self.assertTrue(0 not in c)
+        self.assertIn(1, b)
+        self.assertNotIn(0, b)
+        self.assertIn(1, c)
+        self.assertNotIn(0, c)
         self.assertRaises(TypeError, lambda: 1 in a)
         self.assertRaises(TypeError, lambda: 1 not in a)
 
         # test char in string
-        self.assertTrue('c' in 'abc')
-        self.assertTrue('d' not in 'abc')
+        self.assertIn('c', 'abc')
+        self.assertNotIn('d', 'abc')
 
-        self.assertTrue('' in '')
-        self.assertTrue('' in 'abc')
+        self.assertIn('', '')
+        self.assertIn('', 'abc')
 
         self.assertRaises(TypeError, lambda: None in 'abc')
 
@@ -40,15 +40,15 @@ class TestContains(unittest.TestCase):
         # a collection of tests on builtin sequence types
         a = range(10)
         for i in a:
-            self.assertTrue(i in a)
-        self.assertTrue(16 not in a)
-        self.assertTrue(a not in a)
+            self.assertIn(i, a)
+        self.assertNotIn(16, a)
+        self.assertNotIn(a, a)
 
         a = tuple(a)
         for i in a:
-            self.assertTrue(i in a)
-        self.assertTrue(16 not in a)
-        self.assertTrue(a not in a)
+            self.assertIn(i, a)
+        self.assertNotIn(16, a)
+        self.assertNotIn(a, a)
 
         class Deviant1:
             """Behaves strangely when compared
@@ -64,7 +64,7 @@ class TestContains(unittest.TestCase):
                     self.aList.remove(14)
                 return 0
 
-        self.assertTrue(Deviant1() not in Deviant1.aList)
+        self.assertNotIn(Deviant1(), Deviant1.aList)
 
     def test_nonreflexive(self):
         # containment and equality tests involving elements that are
@@ -81,7 +81,7 @@ class TestContains(unittest.TestCase):
         for constructor in constructors:
             container = constructor(values)
             for elem in container:
-                self.assertTrue(elem in container)
+                self.assertIn(elem, container)
             self.assertTrue(container == constructor(values))
             self.assertTrue(container == container)