laconicd-deprecated/tests/integration_tests/test_rollback.py
2022-10-13 11:23:17 +05:30

99 lines
2.9 KiB
Python

import configparser
import subprocess
from pathlib import Path
import pytest
from pystarport import ports
from pystarport.cluster import SUPERVISOR_CONFIG_FILE
from .network import setup_custom_ethermint
from .utils import supervisorctl, wait_for_block, wait_for_port
def update_node2_cmd(path, cmd, i):
ini_path = path / SUPERVISOR_CONFIG_FILE
ini = configparser.RawConfigParser()
ini.read(ini_path)
for section in ini.sections():
if section == f"program:ethermint_9000-1-node{i}":
ini[section].update(
{
"command": f"{cmd} start --home %(here)s/node{i}",
"autorestart": "false", # don't restart when stopped
}
)
with ini_path.open("w") as fp:
ini.write(fp)
def post_init(broken_binary):
def inner(path, base_port, config):
chain_id = "ethermint_9000-1"
update_node2_cmd(path / chain_id, broken_binary, 2)
return inner
@pytest.fixture(scope="module")
def custom_ethermint(tmp_path_factory):
path = tmp_path_factory.mktemp("rollback")
cmd = [
"nix-build",
"--no-out-link",
Path(__file__).parent / "configs/broken-ethermintd.nix",
]
print(*cmd)
broken_binary = (
Path(subprocess.check_output(cmd).strip().decode()) / "bin/ethermintd"
)
print(broken_binary)
# init with genesis binary
yield from setup_custom_ethermint(
path,
26300,
Path(__file__).parent / "configs/rollback-test.jsonnet",
post_init=post_init(broken_binary),
wait_port=False,
)
def test_rollback(custom_ethermint):
"""
test using rollback command to fix app-hash mismatch situation.
- the broken node will sync up to block 10 then crash.
- use rollback command to rollback the db.
- switch to correct binary should make the node syncing again.
"""
wait_for_port(ports.rpc_port(custom_ethermint.base_port(2)))
print("wait for node2 to sync the first 10 blocks")
cli2 = custom_ethermint.cosmos_cli(2)
wait_for_block(cli2, 10)
print("wait for a few more blocks on the healthy nodes")
cli = custom_ethermint.cosmos_cli(0)
wait_for_block(cli, 13)
# (app hash mismatch happens after the 10th block, detected in the 11th block)
print("check node2 get stuck at block 10")
assert cli2.block_height() == 10
print("stop node2")
supervisorctl(
custom_ethermint.base_dir / "../tasks.ini", "stop", "ethermint_9000-1-node2"
)
print("do rollback on node2")
cli2.rollback()
print("switch to normal binary")
update_node2_cmd(custom_ethermint.base_dir, "ethermintd", 2)
supervisorctl(custom_ethermint.base_dir / "../tasks.ini", "update")
wait_for_port(ports.rpc_port(custom_ethermint.base_port(2)))
print("check node2 sync again")
cli2 = custom_ethermint.cosmos_cli(2)
wait_for_block(cli2, 15)