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-rw-r--r--test/functional/test_framework/script.py23
1 files changed, 23 insertions, 0 deletions
diff --git a/test/functional/test_framework/script.py b/test/functional/test_framework/script.py
index e475ed8596..9102266456 100644
--- a/test/functional/test_framework/script.py
+++ b/test/functional/test_framework/script.py
@@ -8,6 +8,7 @@ This file is modified from python-bitcoinlib.
"""
import hashlib
import struct
+import unittest
from .messages import (
CTransaction,
@@ -708,3 +709,25 @@ def SegwitV0SignatureHash(script, txTo, inIdx, hashtype, amount):
ss += struct.pack("<I", hashtype)
return hash256(ss)
+
+class TestFrameworkScript(unittest.TestCase):
+ def test_bn2vch(self):
+ self.assertEqual(bn2vch(0), bytes([]))
+ self.assertEqual(bn2vch(1), bytes([0x01]))
+ self.assertEqual(bn2vch(-1), bytes([0x81]))
+ self.assertEqual(bn2vch(0x7F), bytes([0x7F]))
+ self.assertEqual(bn2vch(-0x7F), bytes([0xFF]))
+ self.assertEqual(bn2vch(0x80), bytes([0x80, 0x00]))
+ self.assertEqual(bn2vch(-0x80), bytes([0x80, 0x80]))
+ self.assertEqual(bn2vch(0xFF), bytes([0xFF, 0x00]))
+ self.assertEqual(bn2vch(-0xFF), bytes([0xFF, 0x80]))
+ self.assertEqual(bn2vch(0x100), bytes([0x00, 0x01]))
+ self.assertEqual(bn2vch(-0x100), bytes([0x00, 0x81]))
+ self.assertEqual(bn2vch(0x7FFF), bytes([0xFF, 0x7F]))
+ self.assertEqual(bn2vch(-0x8000), bytes([0x00, 0x80, 0x80]))
+ self.assertEqual(bn2vch(-0x7FFFFF), bytes([0xFF, 0xFF, 0xFF]))
+ self.assertEqual(bn2vch(0x80000000), bytes([0x00, 0x00, 0x00, 0x80, 0x00]))
+ self.assertEqual(bn2vch(-0x80000000), bytes([0x00, 0x00, 0x00, 0x80, 0x80]))
+ self.assertEqual(bn2vch(0xFFFFFFFF), bytes([0xFF, 0xFF, 0xFF, 0xFF, 0x00]))
+ self.assertEqual(bn2vch(123456789), bytes([0x15, 0xCD, 0x5B, 0x07]))
+ self.assertEqual(bn2vch(-54321), bytes([0x31, 0xD4, 0x80]))