/
test_root_state.py
489 lines (415 loc) · 18.8 KB
/
test_root_state.py
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import unittest
import quarkchain.db
from quarkchain.cluster.root_state import RootState
from quarkchain.cluster.shard_state import ShardState
from quarkchain.cluster.tests.test_utils import get_test_env
from quarkchain.core import Address
from quarkchain.core import CrossShardTransactionList
from quarkchain.diff import EthDifficultyCalculator
from quarkchain.genesis import GenesisManager
def create_default_state(env, diff_calc=None):
r_state = RootState(env=env, diff_calc=diff_calc)
s_state_list = []
for shard_id in range(env.quark_chain_config.SHARD_SIZE):
shard_state = ShardState(
env=env, shard_id=shard_id, db=quarkchain.db.InMemoryDb()
)
shard_state.init_genesis_state(r_state.get_tip_block())
s_state_list.append(shard_state)
for state in s_state_list:
block_hash = state.header_tip.get_hash()
for dst_state in s_state_list:
if state == dst_state:
continue
dst_state.add_cross_shard_tx_list_by_minor_block_hash(
block_hash, CrossShardTransactionList(tx_list=[])
)
r_state.add_validated_minor_block_hash(block_hash)
return (r_state, s_state_list)
def add_minor_block_to_cluster(s_states, block):
shard_id = block.header.branch.get_shard_id()
s_states[shard_id].finalize_and_add_block(block)
block_hash = block.header.get_hash()
for i in range(block.header.branch.get_shard_size()):
if i == shard_id:
continue
s_states[i].add_cross_shard_tx_list_by_minor_block_hash(
block_hash, CrossShardTransactionList(tx_list=[])
)
class TestRootState(unittest.TestCase):
def test_root_state_simple(self):
env = get_test_env()
state = RootState(env=env)
self.assertEqual(state.tip.height, 0)
def test_root_state_add_block(self):
env = get_test_env()
r_state, s_states = create_default_state(env)
b0 = s_states[0].get_tip().create_block_to_append()
s_states[0].finalize_and_add_block(b0)
b1 = s_states[1].get_tip().create_block_to_append()
s_states[1].finalize_and_add_block(b1)
r_state.add_validated_minor_block_hash(b0.header.get_hash())
r_state.add_validated_minor_block_hash(b1.header.get_hash())
root_block = (
r_state.tip.create_block_to_append()
.add_minor_block_header(s_states[0].db.get_minor_block_by_height(0).header)
.add_minor_block_header(b0.header)
.add_minor_block_header(s_states[1].db.get_minor_block_by_height(0).header)
.add_minor_block_header(b1.header)
.finalize()
)
self.assertTrue(r_state.add_block(root_block))
self.assertIsNone(r_state.get_root_block_by_height(2))
self.assertEqual(r_state.get_root_block_by_height(1), root_block)
self.assertEqual(
r_state.get_root_block_by_height(0),
r_state.get_root_block_by_hash(root_block.header.hash_prev_block),
)
def test_root_state_and_shard_state_add_block(self):
env = get_test_env()
r_state, s_states = create_default_state(env)
b0 = s_states[0].get_tip().create_block_to_append()
add_minor_block_to_cluster(s_states, b0)
b1 = s_states[1].get_tip().create_block_to_append()
add_minor_block_to_cluster(s_states, b1)
r_state.add_validated_minor_block_hash(b0.header.get_hash())
r_state.add_validated_minor_block_hash(b1.header.get_hash())
root_block = (
r_state.tip.create_block_to_append()
.add_minor_block_header(s_states[0].db.get_minor_block_by_height(0).header)
.add_minor_block_header(b0.header)
.add_minor_block_header(s_states[1].db.get_minor_block_by_height(0).header)
.add_minor_block_header(b1.header)
.finalize()
)
self.assertTrue(r_state.add_block(root_block))
def test_root_state_add_block_missing_minor_block_header(self):
env = get_test_env()
r_state, s_states = create_default_state(env)
b0 = s_states[0].get_tip().create_block_to_append()
s_states[0].finalize_and_add_block(b0)
b1 = s_states[1].get_tip().create_block_to_append()
s_states[1].finalize_and_add_block(b1)
r_state.add_validated_minor_block_hash(b0.header.get_hash())
r_state.add_validated_minor_block_hash(b1.header.get_hash())
root_block = (
r_state.tip.create_block_to_append()
.add_minor_block_header(b1.header)
.finalize()
)
with self.assertRaises(ValueError):
r_state.add_block(root_block)
root_block = (
r_state.tip.create_block_to_append()
.add_minor_block_header(b0.header)
.finalize()
)
with self.assertRaises(ValueError):
r_state.add_block(root_block)
def test_root_state_and_shard_state_add_two_blocks(self):
env = get_test_env()
r_state, s_states = create_default_state(env)
b0 = s_states[0].get_tip().create_block_to_append()
add_minor_block_to_cluster(s_states, b0)
b1 = s_states[1].get_tip().create_block_to_append()
add_minor_block_to_cluster(s_states, b1)
r_state.add_validated_minor_block_hash(b0.header.get_hash())
r_state.add_validated_minor_block_hash(b1.header.get_hash())
root_block0 = (
r_state.tip.create_block_to_append()
.add_minor_block_header(s_states[0].db.get_minor_block_by_height(0).header)
.add_minor_block_header(b0.header)
.add_minor_block_header(s_states[1].db.get_minor_block_by_height(0).header)
.add_minor_block_header(b1.header)
.finalize()
)
self.assertTrue(r_state.add_block(root_block0))
b2 = s_states[0].get_tip().create_block_to_append()
add_minor_block_to_cluster(s_states, b2)
b3 = s_states[1].get_tip().create_block_to_append()
add_minor_block_to_cluster(s_states, b3)
r_state.add_validated_minor_block_hash(b2.header.get_hash())
r_state.add_validated_minor_block_hash(b3.header.get_hash())
root_block1 = (
r_state.tip.create_block_to_append()
.add_minor_block_header(b2.header)
.add_minor_block_header(b3.header)
.finalize()
)
self.assertTrue(r_state.add_block(root_block1))
def test_root_state_and_shard_state_fork(self):
env = get_test_env()
r_state, s_states = create_default_state(env)
b0 = s_states[0].get_tip().create_block_to_append()
b2 = s_states[0].get_tip().create_block_to_append()
add_minor_block_to_cluster(s_states, b0)
b1 = s_states[1].get_tip().create_block_to_append(nonce=1)
b3 = s_states[1].get_tip().create_block_to_append(nonce=1)
add_minor_block_to_cluster(s_states, b1)
r_state.add_validated_minor_block_hash(b0.header.get_hash())
r_state.add_validated_minor_block_hash(b1.header.get_hash())
root_block0 = (
r_state.tip.create_block_to_append()
.add_minor_block_header(s_states[0].db.get_minor_block_by_height(0).header)
.add_minor_block_header(b0.header)
.add_minor_block_header(s_states[1].db.get_minor_block_by_height(0).header)
.add_minor_block_header(b1.header)
.finalize()
)
root_block1 = r_state.tip.create_block_to_append()
self.assertTrue(r_state.add_block(root_block0))
self.assertTrue(s_states[0].add_root_block(root_block0))
self.assertTrue(s_states[1].add_root_block(root_block0))
add_minor_block_to_cluster(s_states, b2)
add_minor_block_to_cluster(s_states, b3)
r_state.add_validated_minor_block_hash(b2.header.get_hash())
r_state.add_validated_minor_block_hash(b3.header.get_hash())
root_block1 = (
root_block1.add_minor_block_header(
s_states[0].db.get_minor_block_by_height(0).header
)
.add_minor_block_header(b2.header)
.add_minor_block_header(s_states[1].db.get_minor_block_by_height(0).header)
.add_minor_block_header(b3.header)
.finalize()
)
self.assertFalse(r_state.add_block(root_block1))
self.assertFalse(s_states[0].add_root_block(root_block1))
self.assertFalse(s_states[1].add_root_block(root_block1))
b4 = b2.create_block_to_append()
b5 = b3.create_block_to_append()
add_minor_block_to_cluster(s_states, b4)
add_minor_block_to_cluster(s_states, b5)
r_state.add_validated_minor_block_hash(b4.header.get_hash())
r_state.add_validated_minor_block_hash(b5.header.get_hash())
root_block2 = (
root_block1.create_block_to_append()
.add_minor_block_header(b4.header)
.add_minor_block_header(b5.header)
.finalize()
)
self.assertTrue(r_state.add_block(root_block2))
self.assertTrue(s_states[0].add_root_block(root_block2))
self.assertTrue(s_states[1].add_root_block(root_block2))
self.assertEqual(r_state.tip, root_block2.header)
self.assertEqual(s_states[0].root_tip, root_block2.header)
self.assertEqual(s_states[1].root_tip, root_block2.header)
def test_root_state_difficulty(self):
env = get_test_env()
env.quark_chain_config.SKIP_ROOT_DIFFICULTY_CHECK = False
env.quark_chain_config.ROOT.GENESIS.DIFFICULTY = 1000
diff_calc = EthDifficultyCalculator(cutoff=9, diff_factor=2048, minimum_diff=1)
env.quark_chain_config.NETWORK_ID = (
1
) # other network ids will skip difficulty check
r_state, s_states = create_default_state(env, diff_calc=diff_calc)
g0 = s_states[0].header_tip
b0 = s_states[0].get_tip().create_block_to_append()
add_minor_block_to_cluster(s_states, b0)
g1 = s_states[1].header_tip
b1 = s_states[1].get_tip().create_block_to_append()
add_minor_block_to_cluster(s_states, b1)
r_state.add_validated_minor_block_hash(b0.header.get_hash())
r_state.add_validated_minor_block_hash(b1.header.get_hash())
# Check new difficulty
root_block0 = r_state.create_block_to_mine(
m_header_list=[b0.header, b1.header],
address=Address.create_empty_account(),
create_time=r_state.tip.create_time + 9,
)
self.assertEqual(r_state.tip.difficulty, root_block0.header.difficulty)
root_block0 = r_state.create_block_to_mine(
m_header_list=[b0.header, b1.header],
address=Address.create_empty_account(),
create_time=r_state.tip.create_time + 3,
)
self.assertEqual(
r_state.tip.difficulty + r_state.tip.difficulty // 2048,
root_block0.header.difficulty,
)
root_block0 = r_state.create_block_to_mine(
m_header_list=[g0, b0.header, g1, b1.header],
address=Address.create_empty_account(),
create_time=r_state.tip.create_time + 26,
).finalize()
self.assertEqual(
r_state.tip.difficulty - r_state.tip.difficulty // 2048,
root_block0.header.difficulty,
)
def test_root_state_recovery(self):
env = get_test_env()
r_state, s_states = create_default_state(env)
b0 = s_states[0].get_tip().create_block_to_append()
add_minor_block_to_cluster(s_states, b0)
b1 = s_states[1].get_tip().create_block_to_append()
add_minor_block_to_cluster(s_states, b1)
r_state.add_validated_minor_block_hash(b0.header.get_hash())
r_state.add_validated_minor_block_hash(b1.header.get_hash())
root_block0 = (
r_state.tip.create_block_to_append()
.add_minor_block_header(s_states[0].db.get_minor_block_by_height(0).header)
.add_minor_block_header(b0.header)
.add_minor_block_header(s_states[1].db.get_minor_block_by_height(0).header)
.add_minor_block_header(b1.header)
.finalize()
)
root_block00 = (
r_state.tip.create_block_to_append()
.add_minor_block_header(s_states[0].db.get_minor_block_by_height(0).header)
.add_minor_block_header(b0.header)
.add_minor_block_header(s_states[1].db.get_minor_block_by_height(0).header)
.add_minor_block_header(b1.header)
.finalize()
)
self.assertTrue(r_state.add_block(root_block0))
# create a fork
root_block00.header.create_time += 1
root_block00.finalize()
self.assertNotEqual(
root_block0.header.get_hash(), root_block00.header.get_hash()
)
self.assertFalse(r_state.add_block(root_block00))
self.assertEqual(
r_state.db.get_root_block_by_hash(root_block00.header.get_hash()),
root_block00,
)
b2 = s_states[0].get_tip().create_block_to_append()
add_minor_block_to_cluster(s_states, b2)
b3 = s_states[1].get_tip().create_block_to_append()
add_minor_block_to_cluster(s_states, b3)
r_state.add_validated_minor_block_hash(b2.header.get_hash())
r_state.add_validated_minor_block_hash(b3.header.get_hash())
root_block1 = (
r_state.tip.create_block_to_append()
.add_minor_block_header(b2.header)
.add_minor_block_header(b3.header)
.finalize()
)
self.assertTrue(r_state.add_block(root_block1))
# now the longest chain is root_block0 <-- root_block1
recovered_state = RootState(env=env)
self.assertEqual(recovered_state.tip, root_block1.header)
self.assertEqual(recovered_state.db.get_root_block_by_height(1), root_block0)
self.assertEqual(recovered_state.db.get_root_block_by_height(2), root_block1)
# fork is pruned from recovered state
self.assertIsNone(
recovered_state.db.get_root_block_by_hash(root_block00.header.get_hash())
)
self.assertEqual(
recovered_state.db.get_root_block_by_hash(
root_block00.header.get_hash(), consistency_check=False
),
root_block00,
)
def test_add_root_block_with_minor_block_with_wrong_root_block_hash(self):
""" Test for the following case
+--+ +--+
|r1|<---|r3|
/+--+ +--+
/ | |
+--+ / +--+ +--+
|r0|<----|m1|<---|m2|
+--+ \ +--+ +--+
\ | |
\+--+ |
|r2|<----+
+--+
where r3 is invalid because m2 depends on r2, which is not in the r3 chain.
"""
env = get_test_env(shard_size=1)
r_state, s_states = create_default_state(env)
genesis_header = s_states[0].header_tip
root_block0 = r_state.get_tip_block()
m1 = s_states[0].get_tip().create_block_to_append()
add_minor_block_to_cluster(s_states, m1)
r_state.add_validated_minor_block_hash(m1.header.get_hash())
root_block1 = (
root_block0.create_block_to_append(nonce=0)
.add_minor_block_header(genesis_header)
.add_minor_block_header(m1.header)
.finalize()
)
root_block2 = (
root_block0.create_block_to_append(nonce=1)
.add_minor_block_header(genesis_header)
.add_minor_block_header(m1.header)
.finalize()
)
self.assertTrue(r_state.add_block(root_block1))
self.assertFalse(r_state.add_block(root_block2))
self.assertTrue(s_states[0].add_root_block(root_block1))
self.assertFalse(s_states[0].add_root_block(root_block2))
m2 = m1.create_block_to_append()
m2.header.hash_prev_root_block = root_block2.header.get_hash()
add_minor_block_to_cluster(s_states, m2)
r_state.add_validated_minor_block_hash(m2.header.get_hash())
root_block3 = (
root_block1.create_block_to_append()
.add_minor_block_header(m2.header)
.finalize()
)
with self.assertRaises(ValueError):
r_state.add_block(root_block3)
root_block4 = (
root_block2.create_block_to_append()
.add_minor_block_header(m2.header)
.finalize()
)
self.assertTrue(r_state.add_block(root_block4))
def test_add_minor_block_with_wrong_root_block_hash(self):
""" Test for the following case
+--+
|r1|
/+--+
/ |
+--+ / +--+ +--+
|r0|<----|m1|<---|m3|
+--+ \ +--+ +--+
^ \ |
| \+--+ |
| |r2|<----+
| +--+
| |
| +--+
+------|m2|
+--+
where m3 is invalid because m3 depends on r2, whose minor chain is not the same chain as m3
"""
env = get_test_env(shard_size=1)
r_state, s_states = create_default_state(env)
genesis_header = s_states[0].header_tip
root_block0 = r_state.get_tip_block()
m1 = s_states[0].get_tip().create_block_to_append(nonce=0)
m2 = s_states[0].get_tip().create_block_to_append(nonce=1)
add_minor_block_to_cluster(s_states, m1)
add_minor_block_to_cluster(s_states, m2)
r_state.add_validated_minor_block_hash(m1.header.get_hash())
r_state.add_validated_minor_block_hash(m2.header.get_hash())
root_block1 = (
root_block0.create_block_to_append(nonce=0)
.add_minor_block_header(genesis_header)
.add_minor_block_header(m1.header)
.finalize()
)
root_block2 = (
root_block0.create_block_to_append(nonce=1)
.add_minor_block_header(genesis_header)
.add_minor_block_header(m2.header)
.finalize()
)
self.assertTrue(r_state.add_block(root_block1))
self.assertFalse(r_state.add_block(root_block2))
self.assertTrue(s_states[0].add_root_block(root_block1))
self.assertFalse(s_states[0].add_root_block(root_block2))
m3 = m1.create_block_to_append()
m3.header.hash_prev_root_block = root_block2.header.get_hash()
with self.assertRaises(ValueError):
add_minor_block_to_cluster(s_states, m3)
m4 = m1.create_block_to_append()
m4.header.hash_prev_root_block = root_block1.header.get_hash()
add_minor_block_to_cluster(s_states, m4)
# Test recovery
s_state0_recovered = ShardState(env, shard_id=0, db=s_states[0].raw_db)
s_state0_recovered.init_from_root_block(root_block1)
with self.assertRaises(ValueError):
add_minor_block_to_cluster(s_states, m3)