388 lines
		
	
	
		
			11 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
			
		
		
	
	
			388 lines
		
	
	
		
			11 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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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-5.2.1 {
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  sqlite3 db ""
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  execsql { PRAGMA main.journal_mode }
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} $tempJrnlMode
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do_test walmode-5.2.2 {
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  execsql { PRAGMA main.journal_mode = wal }
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} $tempJrnlMode
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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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} [list 1 2 $tempJrnlMode]
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do_test walmode-5.2.4 {
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  execsql { PRAGMA main.journal_mode = wal }
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} $tempJrnlMode
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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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} [list 1 2 3 4 $tempJrnlMode]
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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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  forcedelete 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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do_execsql_test walmode-8.20 { PRAGMA journal_mode = DELETE } {delete}
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do_execsql_test walmode-8.21 { PRAGMA main.journal_mode }     {delete}
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do_execsql_test walmode-8.22 { PRAGMA two.journal_mode }      {delete}
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do_execsql_test walmode-8.21 { PRAGMA journal_mode = WAL }    {wal}
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do_execsql_test walmode-8.21 { PRAGMA main.journal_mode }     {wal}
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do_execsql_test walmode-8.22 { PRAGMA two.journal_mode }      {wal}
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finish_test
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