drop table if exists t1,t2;
CREATE TABLE t1 (  `id` int(11) NOT NULL default '0', `id2` int(11) NOT NULL default '0', `id3` int(11) NOT NULL default '0', `dummy1` char(30) default NULL, PRIMARY KEY  (`id`,`id2`), KEY `index_id3` (`id3`)) ENGINE=MyISAM;
insert into t1 (id,id2) values (1,1),(1,2),(1,3);
LOCK TABLE t1 WRITE;
select dummy1,count(distinct id) from t1 group by dummy1;
dummy1	count(distinct id)
NULL	1
update t1 set id=-1 where id=1;
LOCK TABLE t1 READ;
update t1 set id=1 where id=1;
ERROR HY000: Table 't1' was locked with a READ lock and can't be updated
create table t2 SELECT * from t1;
ERROR HY000: Table 't2' was not locked with LOCK TABLES
create temporary table t2 SELECT * from t1;
drop table if exists t2;
unlock tables;
create table t2 SELECT * from t1;
LOCK TABLE t1 WRITE,t2 write;
insert into t2 SELECT * from t1;
update t1 set id=1 where id=-1;
drop table t1,t2;
CREATE TABLE t1 (
index1 smallint(6) default NULL,
nr smallint(6) default NULL,
KEY index1(index1)
) ENGINE=MyISAM;
CREATE TABLE t2 (
nr smallint(6) default NULL,
name varchar(20) default NULL
) ENGINE=MyISAM;
INSERT INTO t2 VALUES (1,'item1');
INSERT INTO t2 VALUES (2,'item2');
lock tables t1 write, t2 read;
insert into t1 select 1,nr from t2 where name='item1';
insert into t1 select 2,nr from t2 where name='item2';
unlock tables;
check table t1;
Table	Op	Msg_type	Msg_text
test.t1	check	status	OK
lock tables t1 write;
check table t2;
Table	Op	Msg_type	Msg_text
test.t2	check	Error	Table 't2' was not locked with LOCK TABLES
test.t2	check	error	Corrupt
insert into t1 select index1,nr from t1;
ERROR HY000: Table 't1' was not locked with LOCK TABLES
unlock tables;
lock tables t1 write, t1 as t1_alias read;
insert into t1 select index1,nr from t1 as t1_alias;
drop table t1,t2;
create table t1 (c1 int);
create table t2 (c1 int);
create table t3 (c1 int);
lock tables t1 write, t2 write, t3 write;
drop table t2, t3, t1;
create table t1 (c1 int);
create table t2 (c1 int);
create table t3 (c1 int);
lock tables t1 write, t2 write, t3 write, t1 as t4 read;
alter table t2 add column c2 int;
drop table t1, t2, t3;
create table t1 ( a int(11) not null auto_increment, primary key(a));
create table t2 ( a int(11) not null auto_increment, primary key(a));
lock tables t1 write, t2 read;
delete from t1 using t1,t2 where t1.a=t2.a;
delete t1 from t1,t2 where t1.a=t2.a;
delete from t2 using t1,t2 where t1.a=t2.a;
ERROR HY000: Table 't2' was locked with a READ lock and can't be updated
delete t2 from t1,t2 where t1.a=t2.a;
ERROR HY000: Table 't2' was locked with a READ lock and can't be updated
drop table t1,t2;
End of 4.1 tests.
drop table if exists t1;
create table t1 (a int);
lock table t1 write;
flush tables with read lock;
ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
unlock tables;
drop table t1;
DROP TABLE IF EXISTS t1;
CREATE TABLE t1 (i INT);
LOCK TABLES mysql.time_zone READ, mysql.proc READ, t1 READ;
UNLOCK TABLES;
LOCK TABLES mysql.time_zone READ, mysql.proc READ, t1 WRITE;
UNLOCK TABLES;
LOCK TABLES mysql.time_zone READ, mysql.proc READ;
UNLOCK TABLES;
LOCK TABLES mysql.time_zone WRITE, mysql.proc WRITE;
UNLOCK TABLES;
LOCK TABLES mysql.time_zone READ, mysql.proc WRITE, t1 READ;
ERROR HY000: You can't combine write-locking of system tables with other tables or lock types
LOCK TABLES mysql.time_zone WRITE, mysql.proc WRITE, t1 READ;
ERROR HY000: You can't combine write-locking of system tables with other tables or lock types
LOCK TABLES mysql.time_zone WRITE, mysql.proc WRITE, t1 WRITE;
ERROR HY000: You can't combine write-locking of system tables with other tables or lock types
LOCK TABLES mysql.time_zone READ, mysql.proc WRITE;
ERROR HY000: You can't combine write-locking of system tables with other tables or lock types
DROP TABLE t1;

Bug#5719 impossible to lock VIEW

Just covering existing behaviour with tests. 
Consistency has not been found here.

drop view if exists v_bug5719;
drop table if exists t1, t2, t3;
create table t1 (a int);
create temporary table t2 (a int);
create table t3 (a int);
create view v_bug5719 as select 1;
lock table v_bug5719 write;
select * from t1;
ERROR HY000: Table 't1' was not locked with LOCK TABLES

Allowed to select from a temporary talbe under LOCK TABLES

select * from t2;
a
select * from t3;
ERROR HY000: Table 't3' was not locked with LOCK TABLES
select * from v_bug5719;
1
1
drop view v_bug5719;

sic: did not left LOCK TABLES mode automatically

select * from t1;
ERROR HY000: Table 't1' was not locked with LOCK TABLES
unlock tables;
create view v_bug5719 as select * from t1;
lock tables v_bug5719 write;
select * from v_bug5719;
a

Allowed to use an underlying table under LOCK TABLES <view>

select * from t1;
a

Allowed to select from a temporary table under LOCK TABLES

select * from t2;
a
select * from t3;
ERROR HY000: Table 't3' was not locked with LOCK TABLES
drop table t1;

sic: left LOCK TABLES mode

select * from t3;
a
select * from v_bug5719;
ERROR HY000: View 'test.v_bug5719' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
unlock tables;
drop view v_bug5719;

When limitation to use temporary tables in views is removed, please
add a test that shows what happens under LOCK TABLES when a view
references a temporary table, is locked, and the underlying table
is dropped.

create view v_bug5719 as select * from t2;
ERROR HY000: View's SELECT refers to a temporary table 't2'

Cleanup.

drop table t2, t3;
#
# Bug#39843 DELETE requires write access to table in subquery in where clause
#
DROP TABLE IF EXISTS t1,t2;
CREATE TABLE t1 (
table1_rowid SMALLINT NOT NULL
);
CREATE TABLE t2 (
table2_rowid SMALLINT NOT NULL
);
INSERT INTO t1 VALUES (1);
INSERT INTO t2 VALUES (1);
LOCK TABLES t1 WRITE, t2 READ;
# Sub-select should not try to aquire a write lock.
DELETE FROM t1 
WHERE EXISTS 
( 
SELECT 'x' 
FROM t2
WHERE t1.table1_rowid = t2.table2_rowid
) ;
# While implementing the patch we didn't break old behavior;
# The following sub-select should still requires a write lock:
SELECT * FROM t1 WHERE 1 IN (SELECT * FROM t2 FOR UPDATE);
ERROR HY000: Table 't2' was locked with a READ lock and can't be updated
UNLOCK TABLES;
DROP TABLE t1,t2;
End of 5.1 tests.