sqlite/test/shared9.test

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# 2012 October 5
#
# 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.
#
#***********************************************************************
#
# The tests in this file are intended to show if two connections attach
# to the same shared cache using different database names, views and
# virtual tables may still be accessed.
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
source $testdir/lock_common.tcl
set testprefix shared9
ifcapable !view||!trigger {
finish_test
return
}
db close
set enable_shared_cache [sqlite3_enable_shared_cache 1]
sqlite3 db1 test.db
sqlite3 db2 test.db
forcedelete test.db2
do_test 1.1 {
db1 eval {
ATTACH 'test.db2' AS 'fred';
CREATE TABLE fred.t1(a, b, c);
CREATE VIEW fred.v1 AS SELECT * FROM t1;
CREATE TABLE fred.t2(a, b);
CREATE TABLE fred.t3(a, b);
CREATE TRIGGER fred.trig AFTER INSERT ON t2 BEGIN
DELETE FROM t3;
INSERT INTO t3 SELECT * FROM t2;
END;
INSERT INTO t2 VALUES(1, 2);
SELECT * FROM t3;
}
} {1 2}
do_test 1.2 { db2 eval "ATTACH 'test.db2' AS 'jones'" } {}
do_test 1.3 { db2 eval "SELECT * FROM v1" } {}
do_test 1.4 { db2 eval "INSERT INTO t2 VALUES(3, 4)" } {}
ifcapable fts3 {
do_test 1.5 {
db1 eval {
CREATE VIRTUAL TABLE fred.t4 USING fts4;
INSERT INTO t4 VALUES('hello world');
}
} {}
do_test 1.6 {
db2 eval {
INSERT INTO t4 VALUES('shared cache');
SELECT * FROM t4 WHERE t4 MATCH 'hello';
}
} {{hello world}}
do_test 1.7 {
db1 eval {
SELECT * FROM t4 WHERE t4 MATCH 'c*';
}
} {{shared cache}}
}
db1 close
db2 close
#-------------------------------------------------------------------------
# The following tests attempt to find a similar problem with collation
# sequence names - pointers to database handle specific allocations leaking
# into schema objects and being used after the original handle has been
# closed.
#
forcedelete test.db test.db2
sqlite3 db1 test.db
sqlite3 db2 test.db
foreach x {collate1 collate2 collate3} {
proc $x {a b} { string compare $a $b }
db1 collate $x $x
db2 collate $x $x
}
do_test 2.1 {
db1 eval {
CREATE TABLE t1(a, b, c COLLATE collate1);
CREATE INDEX i1 ON t1(a COLLATE collate2, c, b);
}
} {}
do_test 2.2 {
db1 close
db2 eval "INSERT INTO t1 VALUES('abc', 'def', 'ghi')"
} {}
db2 close
#-------------------------------------------------------------------------
# At one point, the following would cause a collation sequence belonging
# to connection [db1] to be invoked by a call to [db2 eval]. Which is a
# problem if [db1] has already been closed.
#
forcedelete test.db test.db2
sqlite3 db1 test.db
sqlite3 db2 test.db
proc mycollate_db1 {a b} {set ::invoked_mycollate_db1 1 ; string compare $a $b}
proc mycollate_db2 {a b} {string compare $a $b}
db1 collate mycollate mycollate_db1
db2 collate mycollate mycollate_db2
do_test 2.3 {
set ::invoked_mycollate_db1 0
db1 eval {
CREATE TABLE t1(a COLLATE mycollate, CHECK (a IN ('one', 'two', 'three')));
INSERT INTO t1 VALUES('one');
}
db1 close
set ::invoked_mycollate_db1
} {1}
do_test 2.4 {
set ::invoked_mycollate_db1 0
db2 eval {
INSERT INTO t1 VALUES('two');
}
db2 close
set ::invoked_mycollate_db1
} {0}
forcedelete test.db test.db2
sqlite3 db1 test.db
sqlite3 db2 test.db
db1 collate mycollate mycollate_db1
db2 collate mycollate mycollate_db2
do_test 2.13 {
set ::invoked_mycollate_db1 0
db1 eval {
CREATE TABLE t1(a, CHECK (a COLLATE mycollate IN ('one', 'two', 'three')));
INSERT INTO t1 VALUES('one');
}
db1 close
set ::invoked_mycollate_db1
} {1}
do_test 2.14 {
set ::invoked_mycollate_db1 0
db2 eval {
INSERT INTO t1 VALUES('two');
}
db2 close
set ::invoked_mycollate_db1
} {0}
#-------------------------------------------------------------------------
# This test verifies that a bug causing a busy-handler belonging to one
# shared-cache connection to be executed as a result of an sqlite3_step()
# on another has been fixed.
#
forcedelete test.db test.db2
sqlite3 db1 test.db
sqlite3 db2 test.db
proc busyhandler {handle args} {
set ::busyhandler_invoked_for $handle
return 1
}
db1 busy [list busyhandler db1]
db2 busy [list busyhandler db2]
do_test 3.1 {
db1 eval {
BEGIN;
CREATE TABLE t1(a, b);
CREATE TABLE t2(a, b);
INSERT INTO t1 VALUES(1, 2);
INSERT INTO t2 VALUES(1, 2);
}
# Keep this next COMMIT as a separate statement. This ensures that COMMIT
# has already been compiled and loaded into the tcl interface statement
# cache when it is attempted below.
db1 eval COMMIT
db1 eval {
BEGIN;
INSERT INTO t1 VALUES(3, 4);
}
} {}
do_test 3.2 {
set ::tf [launch_testfixture]
testfixture $::tf {
sqlite3 db test.db
db eval {
BEGIN;
SELECT * FROM t1;
}
}
} {1 2}
do_test 3.3 {
db2 eval { SELECT * FROM t2 }
} {1 2}
do_test 3.4 {
list [catch { db1 eval COMMIT } msg] $msg
} {1 {database is locked}}
# At one point the following would fail, showing that the busy-handler
# belonging to [db2] was invoked instead.
do_test 3.5 {
set ::busyhandler_invoked_for
} {db1}
do_test 3.6 {
close $::tf
db1 eval COMMIT
} {}
db1 close
db2 close
sqlite3_enable_shared_cache $::enable_shared_cache
finish_test