# 2007 April 16 # # 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 interactions between the virtual table and # shared-schema functionality. # # $Id: vtab_shared.test,v 1.3 2009/07/24 17:58:53 danielk1977 Exp $ set testdir [file dirname $argv0] source $testdir/tester.tcl ifcapable !vtab||!shared_cache { finish_test return } db close sqlite3_enable_shared_cache 1 sqlite3 db test.db sqlite3 db2 test.db do_test vtab_shared-1.1 { register_echo_module [sqlite3_connection_pointer db] execsql { CREATE TABLE t0(a, b, c); INSERT INTO t0 VALUES(1, 2, 3); CREATE VIRTUAL TABLE t1 USING echo(t0); } } {} do_test vtab_shared-1.2 { execsql { SELECT * FROM t1 } db } {1 2 3} # Fails because the 'echo' module has not been registered with connection db2 do_test vtab_shared-1.3 { catchsql { SELECT * FROM t1 } db2 } {1 {no such module: echo}} do_test vtab_shared-1.4 { execsql { SELECT * FROM t0 } db2 } {1 2 3} do_test vtab_shared-1.5 { register_echo_module [sqlite3_connection_pointer db2] execsql { SELECT * FROM t1 } db } {1 2 3} # Works after the module is registered with db2 do_test vtab_shared-1.6 { execsql { SELECT * FROM t1 } db2 } {1 2 3} # Set a write-lock on table t0 using connection [db]. Then try to read from # virtual table t1 using [db2]. That this returns an SQLITE_LOCKED error # shows that the correct sqlite3_vtab is being used. # do_test vtab_shared-1.8.1 { execsql { BEGIN; INSERT INTO t1 VALUES(4, 5, 6); SELECT * FROM t1; } } {1 2 3 4 5 6} do_test vtab_shared-1.8.2 { catchsql { SELECT * FROM t1 } db2 } {1 {database table is locked}} do_test vtab_shared-1.8.3 { catchsql { SELECT * FROM t0 } db2 } {1 {database table is locked: t0}} do_test vtab_shared-1.8.4 { execsql { SELECT * FROM t0 } db } {1 2 3 4 5 6} do_test vtab_shared-1.8.5 { execsql { COMMIT } db execsql { SELECT * FROM t1 } db2 } {1 2 3 4 5 6} # While a SELECT is active on virtual table t1 via connection [db], close # [db2]. This causes the schema to be reset internally. Verify that this # does not cause a problem. # foreach {iTest dbSelect dbClose} { 1 db db2 2 db db2 3 db2 db } { do_test vtab_shared-1.9.$iTest { set res [list] $dbSelect eval { SELECT * FROM t1 } { if {$a == 1} {$dbClose close} lappend res $a $b $c } sqlite3 $dbClose test.db register_echo_module [sqlite3_connection_pointer $dbClose] set res } {1 2 3 4 5 6} } # Ensure that it is not possible for one connection to DROP a virtual # table while a second connection is reading from the database. # do_test vtab_shared-1.10 { db eval { SELECT * FROM t1 } { set error [catchsql { DROP TABLE t1 } db2] break } set error } {1 {database table is locked: sqlite_master}} do_test vtab_shared-1.11 { breakpoint execsql { CREATE VIRTUAL TABLE t2 USING echo(t0); CREATE VIRTUAL TABLE t3 USING echo(t0); } execsql { SELECT * FROM t3 } db2 } {1 2 3 4 5 6} do_test vtab_shared-1.12.1 { db close execsql { SELECT * FROM t1 UNION ALL SELECT * FROM t2 UNION ALL SELECT * FROM t3 } db2 } {1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6} do_test vtab_shared-1.12.2 { sqlite3 db test.db register_echo_module [sqlite3_connection_pointer db] execsql { SELECT * FROM t1 UNION ALL SELECT * FROM t2 UNION ALL SELECT * FROM t3 } db } {1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6} # Try a rename or two. # do_test vtab_shared-1.13.1 { execsql { ALTER TABLE t1 RENAME TO t4 } execsql { SELECT * FROM t4 } db } {1 2 3 4 5 6} do_test vtab_shared-1.13.2 { execsql { SELECT * FROM t4 } db2 } {1 2 3 4 5 6} do_test vtab_shared-1.13.3 { execsql { ALTER TABLE t2 RENAME TO t5 } execsql { SELECT * FROM t4 } db2 } {1 2 3 4 5 6} # Try an UPDATE/INSERT/DELETE on a shared vtab as the first statement after a # schema is loaded. do_test vtab_shared_1.14.1 { db2 close sqlite3 db2 test.db register_echo_module [sqlite3_connection_pointer db2] execsql { SELECT * FROM t3 } } {1 2 3 4 5 6} do_test vtab_shared_1.14.2 { execsql { UPDATE t3 SET c = 'six' WHERE c = 6; SELECT * FROM t3; } db2 } {1 2 3 4 5 six} do_test vtab_shared_1.14.3 { db2 close sqlite3 db2 test.db register_echo_module [sqlite3_connection_pointer db2] execsql { SELECT * FROM t3 } } {1 2 3 4 5 six} do_test vtab_shared_1.14.4 { execsql { DELETE FROM t3 WHERE c = 'six'; SELECT * FROM t3; } db2 } {1 2 3} do_test vtab_shared_1.14.5 { db2 close sqlite3 db2 test.db register_echo_module [sqlite3_connection_pointer db2] execsql { SELECT * FROM t3 } } {1 2 3} do_test vtab_shared_1.14.6 { execsql { INSERT INTO t3 VALUES(4, 5, 6); SELECT * FROM t3; } db2 } {1 2 3 4 5 6} do_test vtab_shared_1.15.1 { db2 close sqlite3 db2 test.db register_echo_module [sqlite3_connection_pointer db2] execsql { UPDATE t3 SET c = 'six' WHERE c = 6; SELECT * FROM t3; } db2 } {1 2 3 4 5 six} do_test vtab_shared_1.15.2 { db2 close sqlite3 db2 test.db register_echo_module [sqlite3_connection_pointer db2] execsql { DELETE FROM t3 WHERE c = 'six'; SELECT * FROM t3; } db2 } {1 2 3} do_test vtab_shared_1.15.3 { db2 close sqlite3 db2 test.db register_echo_module [sqlite3_connection_pointer db2] execsql { INSERT INTO t3 VALUES(4, 5, 6); SELECT * FROM t3; } } {1 2 3 4 5 6} db close db2 close sqlite3_enable_shared_cache 0 finish_test