Issue #18844: Strengthen tests to include a case with unequal weighting
diff --git a/Lib/test/test_random.py b/Lib/test/test_random.py
index dd27152..a4413b5 100644
--- a/Lib/test/test_random.py
+++ b/Lib/test/test_random.py
@@ -645,6 +645,23 @@
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: