// check that replace_isolation_tester_func correctly replaces the functions isolation
// tester uses while searching for locks. If those functions aren't correctly replaced
// this test will timeout, since isolation tester will never notice that s2 is blocked
// by s1 on a lock it's taken out on one of the workers

setup
{
  select setval('pg_dist_shardid_seq', GREATEST(1400000, nextval('pg_dist_shardid_seq')));

  CREATE TABLE test_locking (a int unique);
  SELECT create_distributed_table('test_locking', 'a');
}

teardown
{
  DROP TABLE test_locking;
}

session "s1"

step "s1-insert-1"
{
  BEGIN;
  INSERT INTO test_locking (a) VALUES (1);
}

step "s1-commit"
{
  COMMIT;
}

session "s2"

step "s2-insert"
{
  BEGIN;
  INSERT INTO test_locking (a) VALUES (1);
}

step "s2-commit"
{
  COMMIT;
}

permutation "s1-insert-1" "s2-insert" "s1-commit" "s2-commit"