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https://github.com/optim-enterprises-bv/patroni.git
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fce889cd04
By default `psycopg2` is preferred. The `psycopg>=3.0` will be used only if `psycopg2` is not available or its version is too old.
93 lines
3.5 KiB
Python
93 lines
3.5 KiB
Python
import patroni.psycopg as pg
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from behave import step, then
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from time import sleep, time
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@step('I start {name:w}')
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def start_patroni(context, name):
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return context.pctl.start(name)
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@step('I shut down {name:w}')
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def stop_patroni(context, name):
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return context.pctl.stop(name, timeout=60)
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@step('I kill {name:w}')
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def kill_patroni(context, name):
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return context.pctl.stop(name, kill=True)
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@step('I kill postmaster on {name:w}')
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def stop_postgres(context, name):
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return context.pctl.stop(name, postgres=True)
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@step('I add the table {table_name:w} to {pg_name:w}')
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def add_table(context, table_name, pg_name):
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# parse the configuration file and get the port
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try:
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context.pctl.query(pg_name, "CREATE TABLE {0}()".format(table_name))
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except pg.Error as e:
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assert False, "Error creating table {0} on {1}: {2}".format(table_name, pg_name, e)
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@step('I {action:w} wal replay on {pg_name:w}')
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def toggle_wal_replay(context, action, pg_name):
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# pause or resume the wal replay process
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try:
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version = context.pctl.query(pg_name, "select pg_catalog.pg_read_file('PG_VERSION', 0, 2)").fetchone()
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wal = version and version[0] and int(version[0].split('.')[0]) < 10 and "xlog" or "wal"
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context.pctl.query(pg_name, "SELECT pg_{0}_replay_{1}()".format(wal, action))
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except pg.Error as e:
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assert False, "Error during {0} wal recovery on {1}: {2}".format(action, pg_name, e)
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@step('I {action:w} table on {pg_name:w}')
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def crdr_mytest(context, action, pg_name):
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try:
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if (action == "create"):
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context.pctl.query(pg_name, "create table if not exists mytest(id Numeric)")
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else:
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context.pctl.query(pg_name, "drop table if exists mytest")
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except pg.Error as e:
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assert False, "Error {0} table mytest on {1}: {2}".format(action, pg_name, e)
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@step('I load data on {pg_name:w}')
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def initiate_load(context, pg_name):
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# perform dummy load
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try:
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context.pctl.query(pg_name, "begin; insert into mytest select r::numeric from generate_series(1, 350000) r; commit;")
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except pg.Error as e:
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assert False, "Error loading test data on {0}: {1}".format(pg_name, e)
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@then('Table {table_name:w} is present on {pg_name:w} after {max_replication_delay:d} seconds')
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def table_is_present_on(context, table_name, pg_name, max_replication_delay):
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max_replication_delay *= context.timeout_multiplier
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for _ in range(int(max_replication_delay)):
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if context.pctl.query(pg_name, "SELECT 1 FROM {0}".format(table_name), fail_ok=True) is not None:
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break
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sleep(1)
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else:
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assert False,\
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"Table {0} is not present on {1} after {2} seconds".format(table_name, pg_name, max_replication_delay)
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@then('{pg_name:w} role is the {pg_role:w} after {max_promotion_timeout:d} seconds')
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def check_role(context, pg_name, pg_role, max_promotion_timeout):
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max_promotion_timeout *= context.timeout_multiplier
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assert context.pctl.check_role_has_changed_to(pg_name, pg_role, timeout=int(max_promotion_timeout)),\
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"{0} role didn't change to {1} after {2} seconds".format(pg_name, pg_role, max_promotion_timeout)
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@step('replication works from {master:w} to {replica:w} after {time_limit:d} seconds')
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@then('replication works from {master:w} to {replica:w} after {time_limit:d} seconds')
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def replication_works(context, master, replica, time_limit):
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context.execute_steps(u"""
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When I add the table test_{0} to {1}
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Then table test_{0} is present on {2} after {3} seconds
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""".format(int(time()), master, replica, time_limit))
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