class TestVerifyHeader(ElectrumTestCase):
# Data for Doriancoin block header #100.
valid_header = "01000000fb040b4b30f4f0d90b5d4819f566a156669565f73998fb37cf072c4ec5daac08fd5a56f1650756fec9f1a587f9f69e5298723bf4e296aff71670b7d471f1a31e9e55964ef0ff0f1e27010000"
target = Blockchain.bits_to_target(0x1e0ffff0)
prev_hash = "08acdac54e2c07cf37fb9839f765956656a166f519485d0bd9f0f4304b0b04fb"
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)
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)