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Annotation of embedaddon/sqlite3/test/shared3.test, revision 1.1

1.1     ! misho       1: # 2005 January 19
        !             2: #
        !             3: # The author disclaims copyright to this source code.  In place of
        !             4: # a legal notice, here is a blessing:
        !             5: #
        !             6: #    May you do good and not evil.
        !             7: #    May you find forgiveness for yourself and forgive others.
        !             8: #    May you share freely, never taking more than you give.
        !             9: #
        !            10: #***********************************************************************
        !            11: #
        !            12: # $Id: shared3.test,v 1.4 2008/08/20 14:49:25 danielk1977 Exp $
        !            13: 
        !            14: set testdir [file dirname $argv0]
        !            15: source $testdir/tester.tcl
        !            16: db close
        !            17: 
        !            18: ifcapable !shared_cache {
        !            19:   finish_test
        !            20:   return
        !            21: }
        !            22: set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
        !            23: 
        !            24: # Ticket #1824
        !            25: #
        !            26: do_test shared3-1.1 {
        !            27:   forcedelete test.db test.db-journal
        !            28:   sqlite3 db1 test.db
        !            29:   db1 eval {
        !            30:     PRAGMA encoding=UTF16;
        !            31:     CREATE TABLE t1(x,y);
        !            32:     INSERT INTO t1 VALUES('abc','This is a test string');
        !            33:   }
        !            34:   db1 close
        !            35:   sqlite3 db1 test.db
        !            36:   db1 eval {SELECT * FROM t1}
        !            37: } {abc {This is a test string}}
        !            38: do_test shared3-1.2 {
        !            39:   sqlite3 db2 test.db
        !            40:   db2 eval {SELECT y FROM t1 WHERE x='abc'}
        !            41: } {{This is a test string}}
        !            42: 
        !            43: db1 close
        !            44: db2 close
        !            45: 
        !            46: do_test shared3-2.1 {
        !            47:   sqlite3 db1 test.db
        !            48:   execsql {
        !            49:     PRAGMA main.cache_size = 10;
        !            50:   } db1
        !            51: } {}
        !            52: do_test shared3-2.2 {
        !            53:   execsql { PRAGMA main.cache_size } db1
        !            54: } {10}
        !            55: do_test shared3-2.3 {
        !            56:   sqlite3 db2 test.db
        !            57:   execsql { PRAGMA main.cache_size } db1
        !            58: } {10}
        !            59: do_test shared3-2.4 {
        !            60:   execsql { PRAGMA main.cache_size } db2
        !            61: } {10}
        !            62: do_test shared3-2.5 {
        !            63:   execsql { PRAGMA main.cache_size } db1
        !            64: } {10}
        !            65: 
        !            66: # The cache-size should now be 10 pages. However at one point there was
        !            67: # a bug that caused the cache size to return to the default value when
        !            68: # a second connection was opened on the shared-cache (as happened in
        !            69: # test case shared3-2.3 above). The goal of the following tests is to
        !            70: # ensure that the cache-size really is 10 pages.
        !            71: #
        !            72: if {$::tcl_platform(platform)=="unix"} {
        !            73:   set alternative_name ./test.db
        !            74: } else {
        !            75:   set alternative_name TEST.DB
        !            76: }
        !            77: do_test shared3-2.6 {
        !            78:   sqlite3 db3 $alternative_name
        !            79:   catchsql {select count(*) from sqlite_master} db3
        !            80: } {0 1}
        !            81: do_test shared3-2.7 {
        !            82:   execsql {
        !            83:     BEGIN;
        !            84:     INSERT INTO t1 VALUES(10, randomblob(5000))
        !            85:   } db1
        !            86:   catchsql {select count(*) from sqlite_master} db3
        !            87: } {0 1}
        !            88: do_test shared3-2.8 {
        !            89:   db3 close
        !            90:   execsql {
        !            91:     INSERT INTO t1 VALUES(10, randomblob(10000))
        !            92:   } db1
        !            93: 
        !            94:   # If the pager-cache is really still limited to 10 pages, then the INSERT
        !            95:   # statement above should have caused the pager to grab an exclusive lock
        !            96:   # on the database file so that the cache could be spilled.
        !            97:   #
        !            98:   catch { sqlite3 db3 $alternative_name }
        !            99:   catchsql {select count(*) from sqlite_master} db3
        !           100: } {1 {database is locked}}
        !           101: 
        !           102: db1 close
        !           103: db2 close
        !           104: db3 close
        !           105: 
        !           106: sqlite3_enable_shared_cache $::enable_shared_cache
        !           107: finish_test