diff options
Diffstat (limited to 'Lib')
| -rw-r--r-- | Lib/random.py | 10 | ||||
| -rw-r--r-- | Lib/test/test_random.py | 29 |
2 files changed, 1 insertions, 38 deletions
diff --git a/Lib/random.py b/Lib/random.py index 2fa9887..b183f56 100644 --- a/Lib/random.py +++ b/Lib/random.py @@ -345,16 +345,6 @@ class Random(_random.Random): http://en.wikipedia.org/wiki/Triangular_distribution """ - # Sanity check. According to the doc low must be less or equal to - # high. And mode should be somewhere between these bounds. - if low > high: - raise ValueError('high cannot be less then low.') - if mode is not None and (mode < low or mode > high): - raise ValueError('mode must be between low and high.') - - if high == low: - return low - u = self.random() c = 0.5 if mode is None else (mode - low) / (high - low) if u > c: diff --git a/Lib/test/test_random.py b/Lib/test/test_random.py index fa03073..437a20f 100644 --- a/Lib/test/test_random.py +++ b/Lib/test/test_random.py @@ -48,33 +48,6 @@ class TestBasicOps(unittest.TestCase): self.assertRaises(TypeError, self.gen.seed, 1, 2, 3, 4) self.assertRaises(TypeError, type(self.gen), []) - def test_triangular(self): - # Check that triangular() correctly handles bad input. See issue 13355. - # mode > high. - with self.assertRaises(ValueError): - random.triangular(mode=2) - with self.assertRaises(ValueError): - random.triangular(low=1, high=10, mode=11) - with self.assertRaises(ValueError): - random.triangular(low=1, high=1, mode=11) - # mode < low. - with self.assertRaises(ValueError): - random.triangular(mode=-1) - with self.assertRaises(ValueError): - random.triangular(low=1, high=10, mode=0) - with self.assertRaises(ValueError): - random.triangular(low=1, high=1, mode=0) - # low > high - with self.assertRaises(ValueError): - random.triangular(low=5, high=2) - with self.assertRaises(ValueError): - random.triangular(low=5, high=2, mode=1) - with self.assertRaises(ValueError): - random.triangular(low=-2, high=-5) - - self.assertEqual(random.triangular(low=10, high=10), 10) - self.assertEqual(random.triangular(low=10, high=10, mode=10), 10) - @unittest.mock.patch('random._urandom') # os.urandom def test_seed_when_randomness_source_not_found(self, urandom_mock): # Random.seed() uses time.time() when an operating system specific @@ -623,7 +596,7 @@ class TestDistributions(unittest.TestCase): for variate, args, expected in [ (g.uniform, (10.0, 10.0), 10.0), (g.triangular, (10.0, 10.0), 10.0), - (g.triangular, (10.0, 10.0, 10.0), 10.0), + #(g.triangular, (10.0, 10.0, 10.0), 10.0), (g.expovariate, (float('inf'),), 0.0), (g.vonmisesvariate, (3.0, float('inf')), 3.0), (g.gauss, (10.0, 0.0), 10.0), |