--
-- macavity: input validation.  Every case here must fail, and none of them
-- may leave an event in the registry.
--
-- unknown fault point
SELECT macavity_arm('wal_insert', 'error');
ERROR:  macavity: unrecognized fault point "wal_insert"
HINT:  Supported fault points are: executor_start, executor_end, before_commit, before_abort. See macavity_points().
SELECT macavity_arm('', 'error');
ERROR:  macavity: unrecognized fault point ""
HINT:  Supported fault points are: executor_start, executor_end, before_commit, before_abort. See macavity_points().
SELECT macavity_arm('EXECUTOR_START', 'error');
ERROR:  macavity: unrecognized fault point "EXECUTOR_START"
HINT:  Supported fault points are: executor_start, executor_end, before_commit, before_abort. See macavity_points().
SELECT macavity_arm_error('wal_insert');
ERROR:  macavity: unrecognized fault point "wal_insert"
HINT:  Supported fault points are: executor_start, executor_end, before_commit, before_abort. See macavity_points().
SELECT macavity_arm_delay('');
ERROR:  macavity: unrecognized fault point ""
HINT:  Supported fault points are: executor_start, executor_end, before_commit, before_abort. See macavity_points().
-- unknown action
SELECT macavity_arm('executor_start', 'panic');
ERROR:  macavity: unrecognized action "panic"
HINT:  Supported actions are: error, crash, delay.
SELECT macavity_arm('executor_start', 'ERROR');
ERROR:  macavity: unrecognized action "ERROR"
HINT:  Supported actions are: error, crash, delay.
-- occurrence must be positive
SELECT macavity_arm('executor_start', 'error', 0);
ERROR:  macavity: occurrence must be greater than zero, got 0
SELECT macavity_arm('executor_start', 'error', -1);
ERROR:  macavity: occurrence must be greater than zero, got -1
SELECT macavity_arm_delay('executor_start', 0);
ERROR:  macavity: occurrence must be greater than zero, got 0
SELECT macavity_arm_crash('executor_start', -1);
ERROR:  macavity: occurrence must be greater than zero, got -1
-- nulls are reported, not silently ignored
SELECT macavity_arm(NULL, 'error');
ERROR:  macavity: point, action and occurrence must not be null
SELECT macavity_arm('executor_start', NULL);
ERROR:  macavity: point, action and occurrence must not be null
SELECT macavity_arm('executor_start', 'error', NULL);
ERROR:  macavity: point, action and occurrence must not be null
SELECT macavity_arm_error(NULL);
ERROR:  macavity: point and occurrence must not be null
SELECT macavity_arm_delay('executor_start', NULL);
ERROR:  macavity: point and occurrence must not be null
SELECT macavity_arm(NULL::integer);
ERROR:  macavity: event_id must not be null
-- 'error' cannot be injected into abort processing, by either form
SELECT macavity_arm('before_abort', 'error');
ERROR:  macavity: action "error" is not supported at fault point "before_abort"
DETAIL:  PostgreSQL has no pre-abort hook; the abort is already in progress when this point is reached, so raising an error there would escalate to FATAL.
HINT:  Use action "crash" or "delay" at "before_abort", or arm "error" at "before_commit".
SELECT macavity_arm_error('before_abort');
ERROR:  macavity: action "error" is not supported at fault point "before_abort"
DETAIL:  PostgreSQL has no pre-abort hook; the abort is already in progress when this point is reached, so raising an error there would escalate to FATAL.
HINT:  Use action "crash" or "delay" at "before_abort", or arm "error" at "before_commit".
-- reinstating needs an event that exists
SELECT macavity_arm(1);
ERROR:  macavity: event 1 does not exist in this session
HINT:  See macavity_status() for this session's events.
SELECT macavity_arm(0);
ERROR:  macavity: event 0 does not exist in this session
HINT:  See macavity_status() for this session's events.
SELECT macavity_arm(-1);
ERROR:  macavity: event -1 does not exist in this session
HINT:  See macavity_status() for this session's events.
-- nothing above may have created anything
SELECT * FROM macavity_status();
 event_id | point | action | occurrence | hits | remaining | state 
----------+-------+--------+------------+------+-----------+-------
(0 rows)

-- disarming an ID that does not exist is not an error, just a no-op
SELECT macavity_disarm(1);
 macavity_disarm 
-----------------
 f
(1 row)

SELECT macavity_disarm(-1);
 macavity_disarm 
-----------------
 f
(1 row)

-- a failed arm does not consume an event ID: the first real event is 1
SELECT macavity_arm('executor_start', 'error', 400);
 macavity_arm 
--------------
            1
(1 row)

SELECT macavity_reset();
 macavity_reset 
----------------
              1
(1 row)

-- the point/action lists are still intact after all that
SELECT count(*) AS points FROM macavity_points();
 points 
--------
      4
(1 row)