1 files changed, 19 insertions, 0 deletions
diff --git a/Lib/test/test_random.py b/Lib/test/test_random.py
new file mode 100644
index 0000000..d508c9f
--- /dev/null
+++ b/Lib/test/test_random.py
@@ -0,0 +1,19 @@
+import test_support
+import random
+
+# Ensure that the seed() method initializes all the hidden state.  In
+# particular, through 2.2.1 it failed to reset a piece of state used by
+# (and only by) the .gauss() method.
+
+for seed in 1, 12, 123, 1234, 12345, 123456, 654321:
+    for seeder in random.seed, random.whseed:
+        seeder(seed)
+        x1 = random.random()
+        y1 = random.gauss(0, 1)
+
+        seeder(seed)
+        x2 = random.random()
+        y2 = random.gauss(0, 1)
+
+        test_support.vereq(x1, x2)
+        test_support.vereq(y1, y2)