commit 4cab8ece0a4a447ce6db928e8f78e57195c18388
author Raymond Hettinger <python@rcn.com> Fri Feb 01 22:42:59 2008 +0000
committer Raymond Hettinger <python@rcn.com> Fri Feb 01 22:42:59 2008 +0000
tree 230e571910aca4d07a79244e647064ffad1d0abd
parent ffc667cbd57151705f5a69139351b7c14b24653d

Test round-trip on float.as_integer_ratio() and float.__truediv__().

Lib/test/test_builtin.py

diff --git a/Lib/test/test_builtin.py b/Lib/test/test_builtin.py
index 2f2634d..cfc9003 100644
--- a/Lib/test/test_builtin.py
+++ b/Lib/test/test_builtin.py
@@ -697,6 +697,12 @@
             ]:
             self.assertEqual(f.as_integer_ratio(), ratio)
 
+        for i in range(10000):
+            f = random.random()
+            f *= 10 ** random.randint(-100, 100)
+            n, d = f.as_integer_ratio()
+            self.assertEqual(float(n).__truediv__(d), f)
+
         R = rational.Rational
         self.assertEqual(R(0, 1),
                          R(*float(0.0).as_integer_ratio()))