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import socket
import subprocess
from pydantic import PostgresDsn
from generalresearch.models.custom_types import InternalHostname
from generalresearch.pg_helper import PostgresConfig
def is_port_open(host: InternalHostname, port: int = 5432, timeout: int = 3):
try:
with socket.create_connection((host, port), timeout=timeout):
return True
except (socket.timeout, ConnectionRefusedError, OSError):
return False
def can_ping(host: InternalHostname):
return (
subprocess.call(
["ping", "-c", "1", str(host)],
stdout=subprocess.DEVNULL,
stderr=subprocess.DEVNULL,
)
== 0
)
class TestPostgresDSN:
def test_ping(self, postgres_instance_host: InternalHostname):
assert can_ping(host=postgres_instance_host)
def test_port(self, postgres_instance_host: InternalHostname):
assert is_port_open(host=postgres_instance_host)
def test_conn(self, postgres_instance: PostgresDsn):
config = PostgresConfig(
dsn=postgres_instance,
connect_timeout=1,
statement_timeout=1,
)
res = config.execute_sql_query(query="SELECT 1;")
assert len(res) == 1
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