From 25d687550a0322ffaf270f25faf2b4a78a97142c Mon Sep 17 00:00:00 2001
From: Ben Reynwar <ben@reynwar.net>
Date: Sun, 15 Apr 2012 17:09:54 -0400
Subject: digital: fix QA for constellation to always reset the seed for
deterministic tests.
---
gr-digital/python/utils/alignment.py | 14 ++++++++------
1 file changed, 8 insertions(+), 6 deletions(-)
(limited to 'gr-digital/python/utils/alignment.py')
diff --git a/gr-digital/python/utils/alignment.py b/gr-digital/python/utils/alignment.py
index d32365866b..f3ad3781e2 100644
--- a/gr-digital/python/utils/alignment.py
+++ b/gr-digital/python/utils/alignment.py
@@ -23,16 +23,17 @@
This module contains functions for aligning sequences.
>>> import random
->>> random.seed(1234)
->>> ran_seq = [random.randint(0,1) for i in range(0, 100)]
+>>> rndm = random.Random()
+>>> rndm.seed(1234)
+>>> ran_seq = [rndm.randint(0,1) for i in range(0, 100)]
>>> offset_seq = [0] * 20 + ran_seq
>>> correct, overlap, offset = align_sequences(ran_seq, offset_seq)
>>> print(correct, overlap, offset)
(1.0, 100, -20)
>>> offset_err_seq = []
>>> for bit in offset_seq:
-... if random.randint(0,4) == 4:
-... offset_err_seq.append(random.randint(0,1))
+... if rndm.randint(0,4) == 4:
+... offset_err_seq.append(rndm.randint(0,1))
... else:
... offset_err_seq.append(bit)
>>> correct, overlap, offset = align_sequences(ran_seq, offset_err_seq)
@@ -78,7 +79,8 @@ def random_sample(size, num_samples=def_num_samples, seed=None):
Returns a set of random integers between 0 and (size-1).
The set contains no more than num_samples integers.
"""
- random.seed(seed)
+ rndm = random.Random()
+ rndm.seed(seed)
if num_samples > size:
indices = set(range(0, size))
else:
@@ -86,7 +88,7 @@ def random_sample(size, num_samples=def_num_samples, seed=None):
num_samples = num_samples/2
indices = set([])
while len(indices) < num_samples:
- index = random.randint(0, size-1)
+ index = rndm.randint(0, size-1)
indices.add(index)
indices = list(indices)
indices.sort()
--
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