c6b2a0ff99
The journal_mode pragma only effects currently attached databases and does not change the behavior of future attachments. FossilOrigin-Name: e396184cd3bdb96e29ac33af5d1f631cac553341
381 lines
10 KiB
Plaintext
381 lines
10 KiB
Plaintext
# 2010 April 19
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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/malloc_common.tcl
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# If the library was compiled without WAL support, check that the
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# "PRAGMA journal_mode=WAL" treats "WAL" as an unrecognized mode.
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#
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ifcapable !wal {
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do_test walmode-0.1 {
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execsql { PRAGMA journal_mode = wal }
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} {delete}
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do_test walmode-0.2 {
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execsql { PRAGMA main.journal_mode = wal }
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} {delete}
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do_test walmode-0.3 {
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execsql { PRAGMA main.journal_mode }
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} {delete}
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finish_test
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return
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}
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do_test walmode-1.1 {
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set sqlite_sync_count 0
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execsql { PRAGMA page_size = 1024 }
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execsql { PRAGMA journal_mode = wal }
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} {wal}
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do_test walmode-1.2 {
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file size test.db
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} {1024}
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set expected_sync_count 3
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if {$::tcl_platform(platform)!="windows"} {
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ifcapable dirsync {
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incr expected_sync_count
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}
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}
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do_test walmode-1.3 {
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set sqlite_sync_count
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} $expected_sync_count
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do_test walmode-1.4 {
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file exists test.db-wal
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} {0}
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do_test walmode-1.5 {
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execsql { CREATE TABLE t1(a, b) }
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file size test.db
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} {1024}
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do_test walmode-1.6 {
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file exists test.db-wal
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} {1}
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do_test walmode-1.7 {
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db close
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file exists test.db-wal
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} {0}
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# There is now a database file with the read and write versions set to 2
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# in the file system. This file should default to WAL mode.
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#
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do_test walmode-2.1 {
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sqlite3 db test.db
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file exists test.db-wal
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} {0}
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do_test walmode-2.2 {
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execsql { SELECT * FROM sqlite_master }
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file exists test.db-wal
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} {1}
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do_test walmode-2.3 {
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db close
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file exists test.db-wal
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} {0}
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# If the first statement executed is "PRAGMA journal_mode = wal", and
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# the file is already configured for WAL (read and write versions set
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# to 2), then there should be no need to write the database. The
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# statement should cause the client to connect to the log file.
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#
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set sqlite_sync_count 0
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do_test walmode-3.1 {
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sqlite3 db test.db
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execsql { PRAGMA journal_mode = wal }
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} {wal}
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do_test walmode-3.2 {
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list $sqlite_sync_count [file exists test.db-wal] [file size test.db-wal]
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} {0 1 0}
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# Test that changing back to journal_mode=persist works.
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#
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do_test walmode-4.1 {
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execsql { INSERT INTO t1 VALUES(1, 2) }
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execsql { PRAGMA journal_mode = persist }
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} {persist}
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do_test walmode-4.2 {
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list [file exists test.db-journal] [file exists test.db-wal]
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} {1 0}
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do_test walmode-4.3 {
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execsql { SELECT * FROM t1 }
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} {1 2}
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do_test walmode-4.4 {
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db close
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sqlite3 db test.db
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execsql { SELECT * FROM t1 }
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} {1 2}
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do_test walmode-4.5 {
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list [file exists test.db-journal] [file exists test.db-wal]
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} {1 0}
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# Test that nothing goes wrong if a connection is prevented from changing
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# from WAL to rollback mode because a second connection has the database
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# open. Or from rollback to WAL.
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#
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do_test walmode-4.6 {
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sqlite3 db2 test.db
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execsql { PRAGMA main.journal_mode } db2
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} {delete}
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do_test walmode-4.7 {
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execsql { PRAGMA main.journal_mode = wal } db
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} {wal}
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do_test walmode-4.8 {
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execsql { SELECT * FROM t1 } db2
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} {1 2}
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do_test walmode-4.9 {
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catchsql { PRAGMA journal_mode = delete } db
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} {1 {database is locked}}
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do_test walmode-4.10 {
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execsql { PRAGMA main.journal_mode } db
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} {wal}
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do_test walmode-4.11 {
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db2 close
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execsql { PRAGMA journal_mode = delete } db
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} {delete}
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do_test walmode-4.12 {
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execsql { PRAGMA main.journal_mode } db
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} {delete}
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do_test walmode-4.13 {
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list [file exists test.db-journal] [file exists test.db-wal]
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} {0 0}
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do_test walmode-4.14 {
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sqlite3 db2 test.db
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execsql {
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BEGIN;
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SELECT * FROM t1;
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} db2
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} {1 2}
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do_test walmode-4.16 { execsql { PRAGMA main.journal_mode } db } {delete}
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do_test walmode-4.17 { execsql { PRAGMA main.journal_mode } db2 } {delete}
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do_test walmode-4.17 {
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catchsql { PRAGMA main.journal_mode = wal } db
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} {1 {database is locked}}
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do_test walmode-4.18 {
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execsql { PRAGMA main.journal_mode } db
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} {delete}
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catch { db close }
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catch { db2 close }
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# Test that it is not possible to change a temporary or in-memory database
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# to WAL mode. WAL mode is for persistent file-backed databases only.
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#
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# walmode-5.1.*: Try to set journal_mode=WAL on [sqlite3 db :memory:] database.
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# walmode-5.2.*: Try to set journal_mode=WAL on [sqlite3 db ""] database.
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# walmode-5.3.*: Try to set temp.journal_mode=WAL.
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#
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do_test walmode-5.1.1 {
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sqlite3 db :memory:
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execsql { PRAGMA main.journal_mode }
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} {memory}
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do_test walmode-5.1.2 {
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execsql { PRAGMA main.journal_mode = wal }
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} {memory}
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do_test walmode-5.1.3 {
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execsql {
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BEGIN;
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CREATE TABLE t1(a, b);
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INSERT INTO t1 VALUES(1, 2);
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COMMIT;
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SELECT * FROM t1;
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PRAGMA main.journal_mode;
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}
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} {1 2 memory}
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do_test walmode-5.1.4 {
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execsql { PRAGMA main.journal_mode = wal }
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} {memory}
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do_test walmode-5.1.5 {
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execsql {
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INSERT INTO t1 VALUES(3, 4);
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SELECT * FROM t1;
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PRAGMA main.journal_mode;
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}
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} {1 2 3 4 memory}
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do_test walmode-5.2.1 {
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sqlite3 db ""
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execsql { PRAGMA main.journal_mode }
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} {delete}
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do_test walmode-5.2.2 {
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execsql { PRAGMA main.journal_mode = wal }
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} {delete}
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do_test walmode-5.2.3 {
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execsql {
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BEGIN;
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CREATE TABLE t1(a, b);
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INSERT INTO t1 VALUES(1, 2);
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COMMIT;
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SELECT * FROM t1;
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PRAGMA main.journal_mode;
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}
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} {1 2 delete}
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do_test walmode-5.2.4 {
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execsql { PRAGMA main.journal_mode = wal }
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} {delete}
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do_test walmode-5.2.5 {
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execsql {
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INSERT INTO t1 VALUES(3, 4);
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SELECT * FROM t1;
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PRAGMA main.journal_mode;
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}
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} {1 2 3 4 delete}
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if {$TEMP_STORE>=2} {
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set tempJrnlMode memory
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} else {
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set tempJrnlMode delete
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}
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do_test walmode-5.3.1 {
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sqlite3 db test.db
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execsql { PRAGMA temp.journal_mode }
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} $tempJrnlMode
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do_test walmode-5.3.2 {
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execsql { PRAGMA temp.journal_mode = wal }
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} $tempJrnlMode
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do_test walmode-5.3.3 {
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execsql {
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BEGIN;
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CREATE TEMP TABLE t1(a, b);
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INSERT INTO t1 VALUES(1, 2);
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COMMIT;
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SELECT * FROM t1;
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PRAGMA temp.journal_mode;
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}
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} [list 1 2 $tempJrnlMode]
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do_test walmode-5.3.4 {
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execsql { PRAGMA temp.journal_mode = wal }
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} $tempJrnlMode
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do_test walmode-5.3.5 {
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execsql {
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INSERT INTO t1 VALUES(3, 4);
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SELECT * FROM t1;
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PRAGMA temp.journal_mode;
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}
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} [list 1 2 3 4 $tempJrnlMode]
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#-------------------------------------------------------------------------
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# Test changing to WAL mode from journal_mode=off or journal_mode=memory
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#
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foreach {tn mode} {
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1 off
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2 memory
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3 persist
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4 delete
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5 truncate
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} {
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do_test walmode-6.$tn {
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faultsim_delete_and_reopen
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execsql "
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PRAGMA journal_mode = $mode;
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PRAGMA journal_mode = wal;
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"
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} [list $mode wal]
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}
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db close
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#-------------------------------------------------------------------------
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# Test the effect of a "PRAGMA journal_mode" command being the first
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# thing executed by a new connection. This means that the schema is not
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# loaded when sqlite3_prepare_v2() is called to compile the statement.
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#
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do_test walmode-7.0 {
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file delete -force test.db
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sqlite3 db test.db
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execsql {
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PRAGMA journal_mode = WAL;
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CREATE TABLE t1(a, b);
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}
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} {wal}
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foreach {tn sql result} {
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1 "PRAGMA journal_mode" wal
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2 "PRAGMA main.journal_mode" wal
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3 "PRAGMA journal_mode = delete" delete
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4 "PRAGMA journal_mode" delete
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5 "PRAGMA main.journal_mode" delete
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6 "PRAGMA journal_mode = wal" wal
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7 "PRAGMA journal_mode" wal
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8 "PRAGMA main.journal_mode" wal
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9 "PRAGMA journal_mode" wal
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10 "PRAGMA main.journal_mode" wal
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11 "PRAGMA main.journal_mode = delete" delete
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12 "PRAGMA journal_mode" delete
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13 "PRAGMA main.journal_mode" delete
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14 "PRAGMA main.journal_mode = wal" wal
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15 "PRAGMA journal_mode" wal
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16 "PRAGMA main.journal_mode" wal
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} {
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do_test walmode-7.$tn {
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db close
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sqlite3 db test.db
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execsql $sql
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} $result
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}
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db close
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#-------------------------------------------------------------------------
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# Test the effect of a "PRAGMA journal_mode" command on an attached
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# database.
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#
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faultsim_delete_and_reopen
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do_execsql_test walmode-8.1 {
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CREATE TABLE t1(a, b);
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PRAGMA journal_mode = WAL;
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ATTACH 'test.db2' AS two;
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CREATE TABLE two.t2(a, b);
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} {wal}
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do_execsql_test walmode-8.2 { PRAGMA main.journal_mode } {wal}
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do_execsql_test walmode-8.3 { PRAGMA two.journal_mode } {delete}
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do_execsql_test walmode-8.4 { PRAGMA two.journal_mode = DELETE } {delete}
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db close
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sqlite3 db test.db
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do_execsql_test walmode-8.5 { ATTACH 'test.db2' AS two } {}
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do_execsql_test walmode-8.6 { PRAGMA main.journal_mode } {wal}
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do_execsql_test walmode-8.7 { PRAGMA two.journal_mode } {delete}
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do_execsql_test walmode-8.8 { INSERT INTO two.t2 DEFAULT VALUES } {}
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do_execsql_test walmode-8.9 { PRAGMA two.journal_mode } {delete}
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do_execsql_test walmode-8.10 { INSERT INTO t1 DEFAULT VALUES } {}
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do_execsql_test walmode-8.11 { PRAGMA main.journal_mode } {wal}
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do_execsql_test walmode-8.12 { PRAGMA journal_mode } {wal}
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# Change to WAL mode on test2.db and make sure (in the tests that follow)
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# that this mode change persists.
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do_test walmode-8.x1 {
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execsql {
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PRAGMA two.journal_mode=WAL;
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PRAGMA two.journal_mode;
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}
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} {wal wal}
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db close
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sqlite3 db test.db
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do_execsql_test walmode-8.13 { PRAGMA journal_mode = WAL } {wal}
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do_execsql_test walmode-8.14 { ATTACH 'test.db2' AS two } {}
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do_execsql_test walmode-8.15 { PRAGMA main.journal_mode } {wal}
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do_execsql_test walmode-8.16 { PRAGMA two.journal_mode } {wal}
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do_execsql_test walmode-8.17 { INSERT INTO two.t2 DEFAULT VALUES } {}
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do_execsql_test walmode-8.18 { PRAGMA two.journal_mode } {wal}
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sqlite3 db2 test.db2
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do_test walmode-8.19 { execsql { PRAGMA main.journal_mode } db2 } {wal}
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db2 close
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finish_test
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