def _initialize_blockchain(self, genesis=None):
log.info('Initializing new chain')
if not genesis:
genesis = blocks.genesis(self.env)
log.info('new genesis', genesis_hash=genesis, difficulty=genesis.difficulty)
self.index.add_block(genesis)
self._store_block(genesis)
assert genesis == blocks.get_block(self.env, genesis.hash)
self._update_head(genesis)
assert genesis.hash in self
self.commit()
def _initialize_blockchain(self, genesis=None):
log.info('Initializing new chain')
if not genesis:
genesis = blocks.genesis(self.blockchain, difficulty=blocks.GENESIS_DIFFICULTY)
log.info('new genesis', genesis_hash=genesis, difficulty=genesis.difficulty)
self.index.add_block(genesis)
self._store_block(genesis)
assert genesis == blocks.get_block(self.blockchain, genesis.hash)
self._update_head(genesis)
assert genesis.hash in self
self.commit()
def test_mine_block_with_transaction2(db):
k, v, k2, v2 = accounts()
blk = mkquickgenesis({v: {"balance": utils.denoms.ether * 1}}, db)
store_block(blk)
tx = get_transaction()
blk2 = mine_next_block(blk, coinbase=v, transactions=[tx])
assert tx in blk2.get_transactions()
store_block(blk2)
assert tx in blk2.get_transactions()
assert blocks.get_block(env(blk2.db), blk2.hash) == blk2
assert tx.gasprice == 0
assert blk2.get_balance(
v) == env(db).config['BLOCK_REWARD'] + blk.get_balance(v) - tx.value
assert blk.state.db.db == blk2.state.db.db.db
assert blk2.get_parent() == blk
assert tx in blk2.get_transactions()
assert tx not in blk.get_transactions()
def test_mine_block_with_transaction2(db):
k, v, k2, v2 = accounts()
blk = mkquickgenesis({v: {"balance": utils.denoms.ether * 1}}, db)
store_block(blk)
tx = get_transaction()
blk2 = mine_next_block(blk, coinbase=v, transactions=[tx])
assert tx in blk2.get_transactions()
store_block(blk2)
assert tx in blk2.get_transactions()
assert blocks.get_block(env(blk2.db), blk2.hash) == blk2
assert tx.gasprice == 0
assert blk2.get_balance(
v) == env(db).config['BLOCK_REWARD'] + blk.get_balance(v) - tx.value
assert blk.state.db.db == blk2.state.db.db.db
assert blk2.get_parent() == blk
assert tx in blk2.get_transactions()
assert tx not in blk.get_transactions()
def get(self, blockhash):
assert is_string(blockhash)
assert len(blockhash) == 32
return blocks.get_block(self.env, blockhash)
def head(self):
if self.blockchain is None or 'HEAD' not in self.blockchain:
self._initialize_blockchain()
ptr = self.blockchain.get('HEAD')
return blocks.get_block(self.env, ptr)
def get(self, blockhash):
assert is_string(blockhash)
assert len(blockhash) == 32
return blocks.get_block(self.blockchain, blockhash)
def head(self):
if self.blockchain is None or 'HEAD' not in self.blockchain:
self._initialize_blockchain()
ptr = self.blockchain.get('HEAD')
return blocks.get_block(self.blockchain, ptr)
def test_deserialize_commit(db):
k, v, k2, v2 = accounts()
blk = blocks.genesis(env(db))
db.put(blk.hash, rlp.encode(blk))
db.commit()
assert blk == blocks.get_block(env(db), blk.hash)
def store_block(blk):
blk.db.put(blk.hash, rlp.encode(blk))
assert blocks.get_block(env(blk.db), blk.hash) == blk
def test_deserialize_commit(db):
k, v, k2, v2 = accounts()
blk = blocks.genesis(env(db))
db.put(blk.hash, rlp.encode(blk))
db.commit()
assert blk == blocks.get_block(env(db), blk.hash)
def store_block(blk):
blk.db.put(blk.hash, rlp.encode(blk))
assert blocks.get_block(env(blk.db), blk.hash) == blk
def test_deserialize(db):
k, v, k2, v2 = accounts()
blk = blocks.genesis(db)
db.put(blk.hash, rlp.encode(blk))
assert blk == blocks.get_block(db, blk.hash)
def test_deserialize(db):
k, v, k2, v2 = accounts()
blk = blocks.genesis(db)
db.put(blk.hash, rlp.encode(blk))
assert blk == blocks.get_block(db, blk.hash)
