Author: Armin Rigo <[email protected]>
Branch:
Changeset: r76272:ba1ed3805ad7
Date: 2015-03-07 14:52 +0100
http://bitbucket.org/pypy/pypy/changeset/ba1ed3805ad7/
Log: Add a test checking we get the exact same result as CPython
diff --git a/pypy/module/_random/test/test_random.py
b/pypy/module/_random/test/test_random.py
--- a/pypy/module/_random/test/test_random.py
+++ b/pypy/module/_random/test/test_random.py
@@ -102,3 +102,10 @@
self.x = x
r = R(x=15)
assert r.x == 15
+
+ def test_exact_result(self):
+ # this passes on CPython 2.7.9 on Linux 32 and Linux 64
+ import _random
+ rnd = _random.Random(-3**31)
+ x = rnd.random()
+ assert x == 0.8181851342382107
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