...

1 files changed, 58 insertions, 0 deletions

diff --git a/src/python/stdlib/test/test_compare.py b/src/python/stdlib/test/test_compare.py
new file mode 100644
index 0000000..13da80d
--- /dev/null
+++ b/src/python/stdlib/test/test_compare.py
@@ -0,0 +1,58 @@
+import unittest
+from test import test_support
+
+class Empty:
+    def __repr__(self):
+        return '<Empty>'
+
+class Coerce:
+    def __init__(self, arg):
+        self.arg = arg
+
+    def __repr__(self):
+        return '<Coerce %s>' % self.arg
+
+    def __coerce__(self, other):
+        if isinstance(other, Coerce):
+            return self.arg, other.arg
+        else:
+            return self.arg, other
+
+class Cmp:
+    def __init__(self,arg):
+        self.arg = arg
+
+    def __repr__(self):
+        return '<Cmp %s>' % self.arg
+
+    def __cmp__(self, other):
+        return cmp(self.arg, other)
+
+class ComparisonTest(unittest.TestCase):
+    set1 = [2, 2.0, 2L, 2+0j, Coerce(2), Cmp(2.0)]
+    set2 = [[1], (3,), None, Empty()]
+    candidates = set1 + set2
+
+    def test_comparisons(self):
+        for a in self.candidates:
+            for b in self.candidates:
+                if ((a in self.set1) and (b in self.set1)) or a is b:
+                    self.assertEqual(a, b)
+                else:
+                    self.assertNotEqual(a, b)
+
+    def test_id_comparisons(self):
+        # Ensure default comparison compares id() of args
+        L = []
+        for i in range(10):
+            L.insert(len(L)//2, Empty())
+        for a in L:
+            for b in L:
+                self.assertEqual(cmp(a, b), cmp(id(a), id(b)),
+                                 'a=%r, b=%r' % (a, b))
+
+def test_main():
+    test_support.run_unittest(ComparisonTest)
+
+if __name__ == '__main__':
+    test_main()