358 lines
8.8 KiB
Plaintext
358 lines
8.8 KiB
Plaintext
# 2010 April 22
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#
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# The author disclaims copyright to this source code. In place of
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# a legal notice, here is a blessing:
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#
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# May you do good and not evil.
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# May you find forgiveness for yourself and forgive others.
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# May you share freely, never taking more than you give.
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#
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#***********************************************************************
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# This file implements regression tests for SQLite library. The
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# focus of this file is testing the operation of the library in
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# "PRAGMA journal_mode=WAL" mode.
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#
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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source $testdir/wal_common.tcl
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source $testdir/malloc_common.tcl
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do_not_use_codec
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ifcapable !wal {finish_test ; return }
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# Test organization:
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#
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# walback-1.*: Simple tests.
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#
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# walback-2.*: Test backups when the source db is modified mid-backup.
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#
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# walback-3.*: Backup of WAL sources into rollback destinations, and
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# vice-versa.
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#
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# Make sure a simple backup from a WAL database works.
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#
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do_test walbak-1.0 {
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execsql {
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PRAGMA synchronous = NORMAL;
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PRAGMA page_size = 1024;
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PRAGMA auto_vacuum = 0;
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PRAGMA journal_mode = wal;
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BEGIN;
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CREATE TABLE t1(a PRIMARY KEY, b);
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INSERT INTO t1 VALUES('I', 'one');
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COMMIT;
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}
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} {wal}
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do_test walbak-1.1 {
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forcedelete bak.db bak.db-journal bak.db-wal
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db backup bak.db
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file size bak.db
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} [expr 3*1024]
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do_test walbak-1.2 {
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sqlite3 db2 bak.db
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execsql {
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SELECT * FROM t1;
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PRAGMA main.journal_mode;
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} db2
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} {I one wal}
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do_test walbak-1.3 {
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execsql { PRAGMA integrity_check } db2
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} {ok}
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db2 close
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# Try a VACUUM on a WAL database.
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#
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do_test walbak-1.4 {
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execsql {
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VACUUM;
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PRAGMA main.journal_mode;
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}
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} {wal}
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do_test walbak-1.5 {
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list [file size test.db] [file size test.db-wal]
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} [list 1024 [wal_file_size 6 1024]]
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do_test walbak-1.6 {
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execsql { PRAGMA wal_checkpoint }
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list [file size test.db] [file size test.db-wal]
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} [list [expr 3*1024] [wal_file_size 6 1024]]
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do_test walbak-1.6.1 {
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hexio_read test.db 18 2
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} {0202}
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do_test walbak-1.7 {
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execsql {
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CREATE TABLE t2(a, b);
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INSERT INTO t2 SELECT * FROM t1;
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DROP TABLE t1;
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}
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list [file size test.db] [file size test.db-wal]
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} [list [expr 3*1024] [wal_file_size 6 1024]]
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do_test walbak-1.8 {
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execsql { VACUUM }
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list [file size test.db] [file size test.db-wal]
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} [list [expr 3*1024] [wal_file_size 8 1024]]
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do_test walbak-1.9 {
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execsql { PRAGMA wal_checkpoint }
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list [file size test.db] [file size test.db-wal]
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} [list [expr 2*1024] [wal_file_size 8 1024]]
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#-------------------------------------------------------------------------
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# Backups when the source db is modified mid-backup.
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#
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proc sig {{db db}} {
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$db eval {
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PRAGMA integrity_check;
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SELECT md5sum(a, b) FROM t1;
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}
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}
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db close
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delete_file test.db
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sqlite3 db test.db
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do_test walbak-2.1 {
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execsql { PRAGMA journal_mode = WAL }
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execsql {
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CREATE TABLE t1(a PRIMARY KEY, b);
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BEGIN;
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INSERT INTO t1 VALUES(randomblob(500), randomblob(500));
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INSERT INTO t1 SELECT randomblob(500), randomblob(500) FROM t1; /* 2 */
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INSERT INTO t1 SELECT randomblob(500), randomblob(500) FROM t1; /* 4 */
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INSERT INTO t1 SELECT randomblob(500), randomblob(500) FROM t1; /* 8 */
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INSERT INTO t1 SELECT randomblob(500), randomblob(500) FROM t1; /* 16 */
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INSERT INTO t1 SELECT randomblob(500), randomblob(500) FROM t1; /* 32 */
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INSERT INTO t1 SELECT randomblob(500), randomblob(500) FROM t1; /* 64 */
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COMMIT;
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}
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} {}
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do_test walbak-2.2 {
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db backup abc.db
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sqlite3 db2 abc.db
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string compare [sig db] [sig db2]
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} {0}
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do_test walbak-2.3 {
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sqlite3_backup B db2 main db main
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B step 50
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execsql { UPDATE t1 SET b = randomblob(500) }
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list [B step 1000] [B finish]
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} {SQLITE_DONE SQLITE_OK}
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do_test walbak-2.4 {
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string compare [sig db] [sig db2]
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} {0}
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do_test walbak-2.5 {
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db close
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sqlite3 db test.db
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execsql { PRAGMA cache_size = 10 }
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sqlite3_backup B db2 main db main
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B step 50
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execsql {
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BEGIN;
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UPDATE t1 SET b = randomblob(500);
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}
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expr [file size test.db-wal] > 10*1024
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} {1}
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do_test walbak-2.6 {
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B step 1000
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} {SQLITE_BUSY}
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do_test walbak-2.7 {
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execsql COMMIT
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list [B step 1000] [B finish]
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} {SQLITE_DONE SQLITE_OK}
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do_test walbak-2.8 {
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string compare [sig db] [sig db2]
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} {0}
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do_test walbak-2.9 {
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db close
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sqlite3 db test.db
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execsql { PRAGMA cache_size = 10 }
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sqlite3_backup B db2 main db main
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B step 50
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execsql {
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BEGIN;
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UPDATE t1 SET b = randomblob(500);
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}
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expr [file size test.db-wal] > 10*1024
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} {1}
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do_test walbak-2.10 {
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B step 1000
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} {SQLITE_BUSY}
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do_test walbak-2.11 {
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execsql ROLLBACK
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set sigB [sig db]
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list [B step 1000] [B finish]
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} {SQLITE_DONE SQLITE_OK}
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do_test walbak-2.12 {
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string compare [sig db] [sig db2]
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} {0}
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db2 close
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db close
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#-------------------------------------------------------------------------
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# Run some backup operations to copy back and forth between WAL and:
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#
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# walbak-3.1.*: an in-memory database
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#
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# walbak-3.2.*: a temporary database
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#
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# walbak-3.3.*: a database in rollback mode.
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#
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# walbak-3.4.*: a database in rollback mode that (initially) uses a
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# different page-size.
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#
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# Check that this does not confuse any connected clients.
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#
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foreach {tn setup} {
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1 {
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sqlite3 db test.db
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sqlite3 db2 :memory:
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db eval { PRAGMA page_size = 1024 ; PRAGMA journal_mode = WAL }
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db2 eval { PRAGMA page_size = 1024 }
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}
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2 {
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sqlite3 db test.db
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sqlite3 db2 ""
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db eval { PRAGMA page_size = 1024 ; PRAGMA journal_mode = WAL }
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db2 eval { PRAGMA page_size = 1024 }
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}
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3 {
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sqlite3 db test.db
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sqlite3 db2 test.db2
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db eval { PRAGMA page_size = 1024 ; PRAGMA journal_mode = WAL }
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db2 eval { PRAGMA page_size = 1024 ; PRAGMA journal_mode = PERSIST }
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}
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4 {
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sqlite3 db test.db
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sqlite3 db2 test.db2
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db eval { PRAGMA page_size = 1024 ; PRAGMA journal_mode = WAL }
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db2 eval {
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PRAGMA page_size = 2048;
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PRAGMA journal_mode = PERSIST;
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CREATE TABLE xx(x);
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}
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}
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} {
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foreach f [glob -nocomplain test.db*] { forcedelete $f }
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eval $setup
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do_test walbak-3.$tn.1 {
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execsql {
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CREATE TABLE t1(a, b);
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INSERT INTO t1 VALUES(1, 2);
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INSERT INTO t1 VALUES(3, 4);
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SELECT * FROM t1;
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}
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} {1 2 3 4}
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do_test walbak-3.$tn.2 {
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sqlite3_backup B db2 main db main
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B step 10000
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B finish
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execsql { SELECT * FROM t1 } db2
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} {1 2 3 4}
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do_test walbak-3.$tn.3 {
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execsql {
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INSERT INTO t1 VALUES(5, 6);
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INSERT INTO t1 VALUES(7, 8);
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SELECT * FROM t1;
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} db2
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} {1 2 3 4 5 6 7 8}
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do_test walbak-3.$tn.4 {
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sqlite3_backup B db main db2 main
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B step 10000
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B finish
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execsql { SELECT * FROM t1 }
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} {1 2 3 4 5 6 7 8}
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# Check that [db] is still in WAL mode.
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do_test walbak-3.$tn.5 {
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execsql { PRAGMA journal_mode }
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} {wal}
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do_test walbak-3.$tn.6 {
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execsql { PRAGMA wal_checkpoint }
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hexio_read test.db 18 2
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} {0202}
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# If it was not an in-memory database, check that [db2] is still in
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# rollback mode.
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if {[file exists test.db2]} {
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do_test walbak-3.$tn.7 {
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execsql { PRAGMA journal_mode } db2
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} {wal}
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do_test walbak-3.$tn.8 {
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execsql { PRAGMA wal_checkpoint }
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hexio_read test.db 18 2
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} {0202}
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}
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db close
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db2 close
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}
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#-------------------------------------------------------------------------
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# Test that the following holds when a backup operation is run:
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#
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# Source | Destination inital | Destination final
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# ---------------------------------------------------
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# Rollback Rollback Rollback
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# Rollback WAL WAL
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# WAL Rollback WAL
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# WAL WAL WAL
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#
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foreach {tn src dest dest_final} {
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1 delete delete delete
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2 delete wal wal
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3 wal delete wal
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4 wal wal wal
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} {
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catch { db close }
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catch { db2 close }
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forcedelete test.db test.db2
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do_test walbak-4.$tn.1 {
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sqlite3 db test.db
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db eval "PRAGMA journal_mode = $src"
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db eval {
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CREATE TABLE t1(a, b);
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INSERT INTO t1 VALUES('I', 'II');
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INSERT INTO t1 VALUES('III', 'IV');
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}
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sqlite3 db2 test.db2
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db2 eval "PRAGMA journal_mode = $dest"
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db2 eval {
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CREATE TABLE t2(x, y);
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INSERT INTO t2 VALUES('1', '2');
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INSERT INTO t2 VALUES('3', '4');
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}
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} {}
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do_test walbak-4.$tn.2 { execsql { PRAGMA journal_mode } db } $src
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do_test walbak-4.$tn.3 { execsql { PRAGMA journal_mode } db2 } $dest
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do_test walbak-4.$tn.4 { db backup test.db2 } {}
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do_test walbak-4.$tn.5 {
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execsql { SELECT * FROM t1 } db2
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} {I II III IV}
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do_test walbak-4.$tn.5 { execsql { PRAGMA journal_mode } db2 } $dest_final
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db2 close
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do_test walbak-4.$tn.6 { file exists test.db2-wal } 0
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sqlite3 db2 test.db2
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do_test walbak-4.$tn.7 { execsql { PRAGMA journal_mode } db2 } $dest_final
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}
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finish_test
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