# The author disclaims copyright to this source code.  In place of

# a legal notice, here is a blessing:

#

#    May you do good and not evil.

#    May you find forgiveness for yourself and forgive others.

#    May you share freely, never taking more than you give.

#

#***********************************************************************

#

# This file tests the RAISE() function.

#

set testdir [file dirname $argv0]

source $testdir/tester.tcl

ifcapable {!trigger} {

  finish_test

  return

}

# Test that we can cause ROLLBACK, FAIL and ABORT correctly

# catchsql { DROP TABLE tbl; }

catchsql { CREATE TABLE tbl (a, b, c) }

execsql {

    CREATE TRIGGER before_tbl_insert BEFORE INSERT ON tbl BEGIN SELECT CASE 

	WHEN (new.a = 4) THEN RAISE(IGNORE) END;

    END;

    CREATE TRIGGER after_tbl_insert AFTER INSERT ON tbl BEGIN SELECT CASE 

	WHEN (new.a = 1) THEN RAISE(ABORT,    'Trigger abort') 

	WHEN (new.a = 2) THEN RAISE(FAIL,     'Trigger fail') 

	WHEN (new.a = 3) THEN RAISE(ROLLBACK, 'Trigger rollback') END;

    END;

}

# ABORT

do_test trigger3-1.1 {

    catchsql {

	BEGIN;

        INSERT INTO tbl VALUES (5, 5, 6);

        INSERT INTO tbl VALUES (1, 5, 6);

    }

} {1 {Trigger abort}}

do_test trigger3-1.2 {

    execsql {

	SELECT * FROM tbl;

	ROLLBACK;

    }

} {5 5 6}

do_test trigger3-1.3 {

    execsql {SELECT * FROM tbl}

} {}

# FAIL

do_test trigger3-2.1 {

    catchsql {

	BEGIN;

        INSERT INTO tbl VALUES (5, 5, 6);

        INSERT INTO tbl VALUES (2, 5, 6);

    }

} {1 {Trigger fail}}

do_test trigger3-2.2 {

    execsql {

	SELECT * FROM tbl;

	ROLLBACK;

    }

} {5 5 6 2 5 6}

# ROLLBACK

do_test trigger3-3.1 {

    catchsql {

	BEGIN;

        INSERT INTO tbl VALUES (5, 5, 6);

        INSERT INTO tbl VALUES (3, 5, 6);

    }

} {1 {Trigger rollback}}

do_test trigger3-3.2 {

    execsql {

	SELECT * FROM tbl;

    }

} {}

# Verify that a ROLLBACK trigger works like a FAIL trigger if

# we are not within a transaction.  Ticket #3035.

#

do_test trigger3-3.3 {

    catchsql {COMMIT}

    catchsql {

        INSERT INTO tbl VALUES (3, 9, 10);

    }

} {1 {Trigger rollback}}

do_test trigger3-3.4 {

    execsql {SELECT * FROM tbl}

} {}

# IGNORE

do_test trigger3-4.1 {

    catchsql {

	BEGIN;

        INSERT INTO tbl VALUES (5, 5, 6);

        INSERT INTO tbl VALUES (4, 5, 6);

    }

} {0 {}}

do_test trigger3-4.2 {

    execsql {

	SELECT * FROM tbl;

	ROLLBACK;

    }

} {5 5 6}

# Check that we can also do RAISE(IGNORE) for UPDATE and DELETE

execsql {DROP TABLE tbl;}

execsql {CREATE TABLE tbl (a, b, c);}

execsql {INSERT INTO tbl VALUES(1, 2, 3);}

execsql {INSERT INTO tbl VALUES(4, 5, 6);}

execsql {

    CREATE TRIGGER before_tbl_update BEFORE UPDATE ON tbl BEGIN

	SELECT CASE WHEN (old.a = 1) THEN RAISE(IGNORE) END;

    END;

    CREATE TRIGGER before_tbl_delete BEFORE DELETE ON tbl BEGIN

	SELECT CASE WHEN (old.a = 1) THEN RAISE(IGNORE) END;

    END;

}

do_test trigger3-5.1 {

    execsql {

	UPDATE tbl SET c = 10;

	SELECT * FROM tbl;

    }

} {1 2 3 4 5 10}

do_test trigger3-5.2 {

    execsql {

	DELETE FROM tbl;

	SELECT * FROM tbl;

    }

} {1 2 3}

# Check that RAISE(IGNORE) works correctly for nested triggers:

execsql {CREATE TABLE tbl2(a, b, c)}

execsql {

    CREATE TRIGGER after_tbl2_insert AFTER INSERT ON tbl2 BEGIN

	UPDATE tbl SET c = 10;

        INSERT INTO tbl2 VALUES (new.a, new.b, new.c);

    END;

}

do_test trigger3-6 {

    execsql {

	INSERT INTO tbl2 VALUES (1, 2, 3);

	SELECT * FROM tbl2;

	SELECT * FROM tbl;

    }

} {1 2 3 1 2 3 1 2 3}

# Check that things also work for view-triggers

ifcapable view {

execsql {CREATE VIEW tbl_view AS SELECT * FROM tbl}

execsql {

    CREATE TRIGGER tbl_view_insert INSTEAD OF INSERT ON tbl_view BEGIN

	SELECT CASE WHEN (new.a = 1) THEN RAISE(ROLLBACK, 'View rollback')

	            WHEN (new.a = 2) THEN RAISE(IGNORE) 

	            WHEN (new.a = 3) THEN RAISE(ABORT, 'View abort') END;

    END;

}

do_test trigger3-7.1 {

    catchsql {

	INSERT INTO tbl_view VALUES(1, 2, 3);

    }

} {1 {View rollback}}

do_test trigger3-7.2 {

    catchsql {

	INSERT INTO tbl_view VALUES(2, 2, 3);

    }

} {0 {}}

do_test trigger3-7.3 {

    catchsql {

	INSERT INTO tbl_view VALUES(3, 2, 3);

    }

} {1 {View abort}}

} ;# ifcapable view

integrity_check trigger3-8.1

catchsql { DROP TABLE tbl; } 

catchsql { DROP TABLE tbl2; } 

catchsql { DROP VIEW tbl_view; }

finish_test