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authorRaymond Hettinger <python@rcn.com>2003-01-05 01:08:34 (GMT)
committerRaymond Hettinger <python@rcn.com>2003-01-05 01:08:34 (GMT)
commit15ec3731cfd24cb2a7be60db849f3588536eff98 (patch)
tree2a5cfa261fa8d593deec77f86a30ce9bd41b8837 /Lib/test
parent5bd844e20f7faf4c9c7c9eda6b92ba48a44af33c (diff)
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Add a test case.
Diffstat (limited to 'Lib/test')
-rw-r--r--Lib/test/test_random.py19
1 files changed, 19 insertions, 0 deletions
diff --git a/Lib/test/test_random.py b/Lib/test/test_random.py
index b5fe1e5..d917281 100644
--- a/Lib/test/test_random.py
+++ b/Lib/test/test_random.py
@@ -182,6 +182,24 @@ class MersenneTwister_TestBasicOps(TestBasicOps):
seed = (1L << (10000 * 8)) - 1 # about 10K bytes
self.gen.seed(seed)
+class TestDistributions(unittest.TestCase):
+ def test_zeroinputs(self):
+ # Verify that distributions can handle a series of zero inputs'
+ g = random.Random()
+ x = [g.random() for i in xrange(50)] + [0.0]*5
+ g.random = x[:].pop; g.uniform(1,10)
+ g.random = x[:].pop; g.paretovariate(1.0)
+ g.random = x[:].pop; g.expovariate(1.0)
+ g.random = x[:].pop; g.weibullvariate(1.0, 1.0)
+ g.random = x[:].pop; g.normalvariate(0.0, 1.0)
+ g.random = x[:].pop; g.gauss(0.0, 1.0)
+ g.random = x[:].pop; g.lognormvariate(0.0, 1.0)
+ g.random = x[:].pop; g.vonmisesvariate(0.0, 1.0)
+ g.random = x[:].pop; g.gammavariate(0.01, 1.0)
+ g.random = x[:].pop; g.gammavariate(1.0, 1.0)
+ g.random = x[:].pop; g.gammavariate(200.0, 1.0)
+ g.random = x[:].pop; g.betavariate(3.0, 3.0)
+
class TestModule(unittest.TestCase):
def testMagicConstants(self):
self.assertAlmostEqual(random.NV_MAGICCONST, 1.71552776992141)
@@ -199,6 +217,7 @@ def test_main():
suite = unittest.TestSuite()
for testclass in (WichmannHill_TestBasicOps,
MersenneTwister_TestBasicOps,
+ TestDistributions,
TestModule):
suite.addTest(unittest.makeSuite(testclass))
test_support.run_suite(suite)