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-rw-r--r--Lib/test/test_float.py6
1 files changed, 6 insertions, 0 deletions
diff --git a/Lib/test/test_float.py b/Lib/test/test_float.py
index e6779c4..5bf1d31 100644
--- a/Lib/test/test_float.py
+++ b/Lib/test/test_float.py
@@ -8,6 +8,7 @@ import operator
import random
import fractions
import sys
+import time
INF = float("inf")
NAN = float("nan")
@@ -164,6 +165,11 @@ class GeneralFloatCases(unittest.TestCase):
self.assertAlmostEqual(float(FooUnicode('8')), 9.)
self.assertAlmostEqual(float(FooStr('8')), 9.)
+ class Foo5:
+ def __float__(self):
+ return ""
+ self.assertRaises(TypeError, time.sleep, Foo5())
+
def test_is_integer(self):
self.assertFalse((1.1).is_integer())
self.assertTrue((1.).is_integer())