def test_persistence():
"""
Test persistence:
Bob's downloaded blockchain should persist between restarts. He should
only download updates to his blockchain when his node starts.
"""
test_settings = settings["test_persistence"]
# prepare a dir to hold the config and DB files
root_dir = tempfile.mkdtemp()
p_m_conf = """\
---
chain:
persist: true
db_path: \"""" + root_dir + """\"
mining:
autostart: true
expected_mine_rate: 100
cuckoo:
miner:
executable: mean16s-generic
extra_args: "-t 5"
node_bits: 16
"""
p_conf = """\
---
chain:
persist: true
db_path: \"""" + root_dir + """\"
"""
persistence_mining_user_config = common.install_user_config(root_dir, "p_m_epoch.yaml", p_m_conf)
only_persistence_user_config = common.install_user_config(root_dir, "p_epoch.yaml", p_conf)
bob_node = test_settings["nodes"]["bob"]
common.start_node(bob_node, persistence_mining_user_config)
bob_api = common.external_api(bob_node)
# Insert some blocks in Bob's chain
blocks_to_mine = test_settings["blocks_to_mine"]
common.wait_until_height(bob_api, blocks_to_mine)
bob_top = bob_api.get_top()
assert_equals(bob_top.height >= blocks_to_mine, True)
# Now Bob has at least blocks_to_mine blocks
common.stop_node(bob_node)
common.start_node(bob_node, only_persistence_user_config)
bob_new_top = bob_api.get_top()
if(bob_new_top.height > bob_top.height):
# Bob's node had mined another block(s) before being stopped
bob_block = bob_api.get_block_by_hash(bob_top.hash) # this block is presnet
assert_equals(bob_block.height, bob_top.height)
else:
assert_equals(bob_new_top.height, bob_top.height)
assert_equals(bob_top.hash, bob_new_top.hash)
common.stop_node(bob_node)
shutil.rmtree(root_dir)
def make_no_mining_user_config(root_dir, file_name):
key_dir = copy_peer_keys(root_dir, "node2")
conf = """\
---
peers:
- "aenode://pp$HdcpgTX2C1aZ5sjGGysFEuup67K9XiFsWqSPJs4RahEcSyF7X@localhost:3015"
sync:
port: 3025
keys:
dir: \"""" + key_dir + """\"
password: "******"
chain:
hard_forks:
"16": 0
mining:
autostart: false
expected_mine_rate: 100
cuckoo:
miner:
executable: mean16s-generic
extra_args: "-t 5"
node_bits: 16
"""
return common.install_user_config(root_dir, file_name, conf)
def make_fast_mining_user_config(root_dir, file_name):
key_dir = copy_peer_keys(root_dir, "node1")
conf = """\
---
peers:
- "aenode://pp$28uQUgsPcsy7TQwnRxhF8GMKU4ykFLKsgf4TwDwPMNaSCXwWV8@localhost:3025"
sync:
port: 3015
keys:
dir: \"""" + key_dir + """\"
password: "******"
chain:
hard_forks:
"16": 0
mining:
autostart: true
expected_mine_rate: 100
cuckoo:
miner:
executable: mean16s-generic
extra_args: "-t 5"
node_bits: 16
"""
return common.install_user_config(root_dir, file_name, conf)
def make_peers_user_config(root_dir, file_name, keys, sync_port, peers,
mining):
key_dir = copy_peer_keys(root_dir, keys)
conf = """\
---
""" + peers + """
sync:
port: {}
single_outbound_per_group: false
keys:
dir: "{}"
password: "******"
mining:
autostart: {}
expected_mine_rate: 100
beneficiary: "ak$2QLChDdERfod9QajLkCTsJnYP3RNqZJmAFWQWQZWr99fSrC55h"
cuckoo:
miner:
executable: mean16s-generic
extra_args: "-t 5"
node_bits: 16
""".format(sync_port, key_dir, mining)
return common.install_user_config(root_dir, file_name, conf)
def make_no_mining_user_config(root_dir, file_name):
key_dir = copy_peer_keys(root_dir, "node2")
conf = """\
---
peers:
- "aenode://pp_HdcpgTX2C1aZ5sjGGysFEuup67K9XiFsWqSPJs4RahEcSyF7X@localhost:3015"
sync:
port: 3025
keys:
dir: \"""" + key_dir + """\"
peer_password: "******"
chain:
hard_forks:
"1": 0
mining:
autostart: false
expected_mine_rate: 100
beneficiary: "ak_2QLChDdERfod9QajLkCTsJnYP3RNqZJmAFWQWQZWr99fSrC55h"
cuckoo:
miner:
executable: mean15-generic
extra_args: ""
edge_bits: 15
"""
return common.install_user_config(root_dir, file_name, conf)
def make_fast_mining_user_config(root_dir, file_name):
key_dir = copy_peer_keys(root_dir, "node1")
conf = """\
---
peers:
- "aenode://pp_28uQUgsPcsy7TQwnRxhF8GMKU4ykFLKsgf4TwDwPMNaSCXwWV8@localhost:3025"
sync:
port: 3015
keys:
dir: \"""" + key_dir + """\"
peer_password: "******"
chain:
hard_forks:
"1": 0
mining:
autostart: true
expected_mine_rate: 100
beneficiary: "ak_2QLChDdERfod9QajLkCTsJnYP3RNqZJmAFWQWQZWr99fSrC55h"
cuckoo:
miner:
executable: mean15-generic
extra_args: ""
edge_bits: 15
"""
return common.install_user_config(root_dir, file_name, conf)
def make_peers_user_config(root_dir, file_name, keys, sync_port, peers, mining):
key_dir = copy_peer_keys(root_dir, keys)
conf = """\
---
""" + peers + """
sync:
port: {}
keys:
dir: "{}"
password: "******"
mining:
autostart: {}
expected_mine_rate: 100
cuckoo:
miner:
executable: mean16s-generic
extra_args: "-t 5"
node_bits: 16
""".format(sync_port, key_dir, mining)
return common.install_user_config(root_dir, file_name, conf)
def test_persistence():
"""
Test persistence:
Bob's downloaded blockchain should persist between restarts. He should
only download updates to his blockchain when his node starts.
"""
test_settings = settings["test_persistence"]
# prepare a dir to hold the config and DB files
root_dir = tempfile.mkdtemp()
p_m_conf = """\
---
chain:
persist: true
db_path: \"""" + root_dir + """\"
mining:
autostart: true
expected_mine_rate: 100
beneficiary: "ak_2QLChDdERfod9QajLkCTsJnYP3RNqZJmAFWQWQZWr99fSrC55h"
cuckoo:
edge_bits: 15
miners:
- executable: mean15-generic
extra_args: ""
"""
p_conf = """\
---
chain:
persist: true
db_path: \"""" + root_dir + """\"
mining:
beneficiary: "ak_2QLChDdERfod9QajLkCTsJnYP3RNqZJmAFWQWQZWr99fSrC55h"
"""
persistence_mining_user_config = common.install_user_config(
root_dir, "p_m_aeternity.yaml", p_m_conf)
minimal_user_config_with_persistence = common.install_user_config(
root_dir, "p_aeternity.yaml", p_conf)
bob_node = test_settings["nodes"]["bob"]
common.start_node(bob_node, persistence_mining_user_config)
bob_api = common.external_api(bob_node)
# Insert some blocks in Bob's chain
blocks_to_mine = test_settings["blocks_to_mine"]
common.wait_until_height(bob_api, blocks_to_mine)
bob_top = bob_api.get_current_key_block()
assert_equals(bob_top.height >= blocks_to_mine, True)
# Now Bob has at least blocks_to_mine blocks
common.stop_node(bob_node)
common.start_node(bob_node, minimal_user_config_with_persistence)
bob_new_top = bob_api.get_current_key_block()
if (bob_new_top.height > bob_top.height):
# Bob's node had mined another block(s) before being stopped
bob_block = bob_api.get_key_block_by_hash(
bob_top.hash) # this block is presnet
assert_equals(bob_block.height, bob_top.height)
else:
assert_equals(bob_new_top.height, bob_top.height)
assert_equals(bob_top.hash, bob_new_top.hash)
common.stop_node(bob_node)
shutil.rmtree(root_dir)
