tMerge pull request #5537 from xaya/test-verify-header - electrum - Electrum Bitcoin wallet
HTML git clone https://git.parazyd.org/electrum
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---
DIR commit cf02e32f202fe3ddb2ca7f22c27ecdf6fcc45cfa
DIR parent 58177c5bf3a0182630f21c4b88135112a1e3525e
HTML Author: ThomasV <thomasv@electrum.org>
Date: Mon, 26 Aug 2019 15:42:15 +0200
Merge pull request #5537 from xaya/test-verify-header
Unit tests for Blockchain.verify_header
Diffstat:
M electrum/tests/test_blockchain.py | 34 +++++++++++++++++++++++++++++++
1 file changed, 34 insertions(+), 0 deletions(-)
---
DIR diff --git a/electrum/tests/test_blockchain.py b/electrum/tests/test_blockchain.py
t@@ -339,3 +339,37 @@ class TestBlockchain(SequentialTestCase):
for b in (chain_u, chain_l, chain_z):
self.assertTrue(all([b.can_connect(b.read_header(i), False) for i in range(b.height())]))
+
+
+class TestVerifyHeader(SequentialTestCase):
+
+ # Data for Bitcoin block header #100.
+ valid_header = "0100000095194b8567fe2e8bbda931afd01a7acd399b9325cb54683e64129bcd00000000660802c98f18fd34fd16d61c63cf447568370124ac5f3be626c2e1c3c9f0052d19a76949ffff001d33f3c25d"
+ target = Blockchain.bits_to_target(0x1d00ffff)
+ prev_hash = "00000000cd9b12643e6854cb25939b39cd7a1ad0af31a9bd8b2efe67854b1995"
+
+ def setUp(self):
+ super().setUp()
+ self.header = deserialize_header(bfh(self.valid_header), 100)
+
+ def test_valid_header(self):
+ Blockchain.verify_header(self.header, self.prev_hash, self.target)
+
+ def test_expected_hash_mismatch(self):
+ with self.assertRaises(Exception):
+ Blockchain.verify_header(self.header, self.prev_hash, self.target,
+ expected_header_hash="foo")
+
+ def test_prev_hash_mismatch(self):
+ with self.assertRaises(Exception):
+ Blockchain.verify_header(self.header, "foo", self.target)
+
+ def test_target_mismatch(self):
+ with self.assertRaises(Exception):
+ other_target = Blockchain.bits_to_target(0x1d00eeee)
+ Blockchain.verify_header(self.header, self.prev_hash, other_target)
+
+ def test_insufficient_pow(self):
+ with self.assertRaises(Exception):
+ self.header["nonce"] = 42
+ Blockchain.verify_header(self.header, self.prev_hash, self.target)