[Python-checkins] cpython (merge 3.6 -> default): merge
raymond.hettinger
python-checkins at python.org
Sat Oct 29 20:43:09 EDT 2016
https://hg.python.org/cpython/rev/73c29ae6564e
changeset: 104809:73c29ae6564e
parent: 104807:02c620e7a44d
parent: 104808:09a87b16d5e5
user: Raymond Hettinger <python at rcn.com>
date: Sat Oct 29 17:43:02 2016 -0700
summary:
merge
files:
Lib/test/test_random.py | 17 +++++++++++++++++
1 files changed, 17 insertions(+), 0 deletions(-)
diff --git a/Lib/test/test_random.py b/Lib/test/test_random.py
--- a/Lib/test/test_random.py
+++ b/Lib/test/test_random.py
@@ -641,6 +641,23 @@
c = self.gen.choices(range(n), cum_weights=range(1, n+1), k=10000)
self.assertEqual(a, c)
+ # Amerian Roulette
+ population = ['Red', 'Black', 'Green']
+ weights = [18, 18, 2]
+ cum_weights = [18, 36, 38]
+ expanded_population = ['Red'] * 18 + ['Black'] * 18 + ['Green'] * 2
+
+ self.gen.seed(9035768)
+ a = self.gen.choices(expanded_population, k=10000)
+
+ self.gen.seed(9035768)
+ b = self.gen.choices(population, weights, k=10000)
+ self.assertEqual(a, b)
+
+ self.gen.seed(9035768)
+ c = self.gen.choices(population, cum_weights=cum_weights, k=10000)
+ self.assertEqual(a, c)
+
def gamma(z, sqrt2pi=(2.0*pi)**0.5):
# Reflection to right half of complex plane
if z < 0.5:
--
Repository URL: https://hg.python.org/cpython
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