def test_mine_block(db):
k, v, k2, v2 = accounts()
chain = Chain({v: {"balance": utils.denoms.ether * 1}}, difficulty=1)
genesis_hash = chain.state.prev_headers[0].hash
blk2 = mine_next_block(chain, coinbase=v)
blk3 = mine_next_block(chain, coinbase=v)
blk4 = mine_next_block(chain, coinbase=v)
blk5 = mine_next_block(chain, coinbase=v)
assert chain.state.get_balance(
v) == chain.env.config['BLOCK_REWARD'] + chain.mk_poststate_of_blockhash(blk4.hash).get_balance(v)
assert chain.state.get_balance(
v) == chain.env.config['BLOCK_REWARD'] * 2 + chain.mk_poststate_of_blockhash(blk3.hash).get_balance(v)
assert chain.state.get_balance(
v) == chain.env.config['BLOCK_REWARD'] * 3 + chain.mk_poststate_of_blockhash(blk2.hash).get_balance(v)
assert chain.state.get_balance(
v) == chain.env.config['BLOCK_REWARD'] * 4 + chain.mk_poststate_of_blockhash(genesis_hash).get_balance(v)
assert blk2.prevhash == genesis_hash
def test_mine_block_with_transaction2(db):
k, v, k2, v2 = accounts()
chain = Chain({v: {"balance": utils.denoms.ether * 1}}, difficulty=1)
genesis_hash = chain.state.prev_headers[0].hash
tx = get_transaction()
blk2 = mine_next_block(chain, coinbase=v, transactions=[tx])
assert tx in blk2.transactions
assert tx in blk2.transactions
assert chain.get_block(blk2.hash) == blk2
assert tx.gasprice == 0
assert chain.state.get_balance(
v) == chain.env.config['BLOCK_REWARD'] + chain.mk_poststate_of_blockhash(genesis_hash).get_balance(v) - tx.value
