From: Raymond Hettinger <python@rcn.com>
Date: Mon, 26 May 2014 01:28:39 +0000 (-0700)
Subject: Issue 15246:  Improve test coverage for collections.abc.Set.  (Contributed by James... 
X-Git-Tag: v3.5.0a1~1595
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=2d452ee166c15002cdb70fab69dc654aac5db0a0;p=python

Issue 15246:  Improve test coverage for collections.abc.Set.  (Contributed by James King).
---

diff --git a/Lib/test/test_collections.py b/Lib/test/test_collections.py
index 7e149808d4..a53862a5dc 100644
--- a/Lib/test/test_collections.py
+++ b/Lib/test/test_collections.py
@@ -640,6 +640,59 @@ class TestCollectionABCs(ABCTestCase):
         a, b = OneTwoThreeSet(), OneTwoThreeSet()
         self.assertTrue(hash(a) == hash(b))
 
+    def test_isdisjoint_Set(self):
+        class MySet(Set):
+            def __init__(self, itr):
+                self.contents = itr
+            def __contains__(self, x):
+                return x in self.contents
+            def __iter__(self):
+                return iter(self.contents)
+            def __len__(self):
+                return len([x for x in self.contents])
+        s1 = MySet((1, 2, 3))
+        s2 = MySet((4, 5, 6))
+        s3 = MySet((1, 5, 6))
+        self.assertTrue(s1.isdisjoint(s2))
+        self.assertFalse(s1.isdisjoint(s3))
+
+    def test_equality_Set(self):
+        class MySet(Set):
+            def __init__(self, itr):
+                self.contents = itr
+            def __contains__(self, x):
+                return x in self.contents
+            def __iter__(self):
+                return iter(self.contents)
+            def __len__(self):
+                return len([x for x in self.contents])
+        s1 = MySet((1,))
+        s2 = MySet((1, 2))
+        s3 = MySet((3, 4))
+        s4 = MySet((3, 4))
+        self.assertTrue(s2 > s1)
+        self.assertTrue(s1 < s2)
+        self.assertFalse(s2 <= s1)
+        self.assertFalse(s2 <= s3)
+        self.assertFalse(s1 >= s2)
+        self.assertEqual(s3, s4)
+        self.assertNotEqual(s2, s3)
+
+    def test_arithmetic_Set(self):
+        class MySet(Set):
+            def __init__(self, itr):
+                self.contents = itr
+            def __contains__(self, x):
+                return x in self.contents
+            def __iter__(self):
+                return iter(self.contents)
+            def __len__(self):
+                return len([x for x in self.contents])
+        s1 = MySet((1, 2, 3))
+        s2 = MySet((3, 4, 5))
+        s3 = s1 & s2
+        self.assertEqual(s3, MySet((3,)))
+
     def test_MutableSet(self):
         self.assertIsInstance(set(), MutableSet)
         self.assertTrue(issubclass(set, MutableSet))
diff --git a/Misc/ACKS b/Misc/ACKS
index 68701c486e..f25da5efe6 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -679,6 +679,7 @@ Jason Killen
 Jan Kim
 Taek Joo Kim
 Sam Kimbrel
+James King
 W. Trevor King
 Paul Kippes
 Steve Kirsch