591 lines
		
	
	
		
			18 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
			
		
		
	
	
			591 lines
		
	
	
		
			18 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
# 2010 May 03
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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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source $testdir/lock_common.tcl
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ifcapable !wal {finish_test ; return }
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#-------------------------------------------------------------------------
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# This test case, walfault-1-*, simulates faults while executing a
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#
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#   PRAGMA journal_mode = WAL;
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#
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# statement immediately after creating a new database.
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#
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do_test walfault-1-pre-1 {
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  faultsim_delete_and_reopen
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  faultsim_save_and_close
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} {}
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do_faultsim_test walfault-1 -prep {
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  faultsim_restore_and_reopen
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} -body {
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  db eval { PRAGMA main.journal_mode = WAL }
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} -test {
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  faultsim_test_result {0 wal}
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  # Test that the connection that encountered an error as part of 
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  # "PRAGMA journal_mode = WAL" and a new connection use the same
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  # journal mode when accessing the database.
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  #
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  # If "PRAGMA journal_mode" is executed immediately, connection [db] (the 
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  # one that hit the error in journal_mode="WAL") might return "wal" even 
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  # if it failed to switch the database to WAL mode. This is not considered 
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  # a problem. When it tries to read the database, connection [db] correctly 
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  # recognizes that it is a rollback database and switches back to a 
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  # rollback compatible journal mode.
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  #
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  if {[permutation] != "inmemory_journal"} {
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    set jm  [db one  {SELECT * FROM sqlite_master ; PRAGMA main.journal_mode}]
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    sqlite3 db2 test.db
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    set jm2 [db2 one {SELECT * FROM sqlite_master ; PRAGMA main.journal_mode}]
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    db2 close
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    if { $jm!=$jm2 } { error "Journal modes do not match: $jm $jm2" }
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    if { $testrc==0 && $jm!="wal" } { error "Journal mode is not WAL" }
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  }
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}
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#--------------------------------------------------------------------------
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# Test case walfault-2-* tests fault injection during recovery of a 
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# short WAL file (a dozen frames or thereabouts).
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#
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do_test walfault-2-pre-1 {
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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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    BEGIN;
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      CREATE TABLE x(y, z, UNIQUE(y, z));
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      INSERT INTO x VALUES(randomblob(100), randomblob(100));
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    COMMIT;
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    PRAGMA wal_checkpoint;
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    INSERT INTO x SELECT randomblob(100), randomblob(100) FROM x;
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    INSERT INTO x SELECT randomblob(100), randomblob(100) FROM x;
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    INSERT INTO x SELECT randomblob(100), randomblob(100) FROM x;
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  }
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  execsql {
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    SELECT count(*) FROM x
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  }
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} {8}
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do_test walfault-2-pre-2 {
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  faultsim_save_and_close
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  faultsim_restore_and_reopen
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  execsql { SELECT count(*) FROM x }
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} {8}
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do_faultsim_test walfault-2 -prep {
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  faultsim_restore_and_reopen
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} -body {
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  execsql { SELECT count(*) FROM x }
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} -test {
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  faultsim_test_result {0 8}
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  faultsim_integrity_check
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}
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#--------------------------------------------------------------------------
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# Test fault injection while writing and checkpointing a small WAL file.
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#
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do_test walfault-3-pre-1 {
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  sqlite3 db test.db
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  execsql {
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    PRAGMA auto_vacuum = 1;
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    PRAGMA journal_mode = WAL;
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    CREATE TABLE abc(a PRIMARY KEY);
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    INSERT INTO abc VALUES(randomblob(1500));
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  }
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  db close
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  faultsim_save_and_close
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} {}
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do_faultsim_test walfault-3 -prep {
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  faultsim_restore_and_reopen
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} -body {
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  db eval {
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    DELETE FROM abc;
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    PRAGMA wal_checkpoint;
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  }
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  set {} {}
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} -test {
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  faultsim_test_result {0 {}}
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}
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#--------------------------------------------------------------------------
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#
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if {[permutation] != "inmemory_journal"} {
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  faultsim_delete_and_reopen
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  faultsim_save_and_close
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  do_faultsim_test walfault-4 -prep {
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    faultsim_restore_and_reopen
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  } -body {
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    execsql {
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      PRAGMA auto_vacuum = 0;
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      PRAGMA journal_mode = WAL;
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      CREATE TABLE t1(a PRIMARY KEY, b);
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      INSERT INTO t1 VALUES('a', 'b');
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      PRAGMA wal_checkpoint;
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      SELECT * FROM t1;
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    }
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  } -test {
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    # Update: The following changed from {0 {wal 0 7 7 a b}} as a result
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    # of PSOW being set by default.
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    faultsim_test_result {0 {wal 0 5 5 a b}}
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    faultsim_integrity_check
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  } 
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}
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#--------------------------------------------------------------------------
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#
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do_test walfault-5-pre-1 {
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  faultsim_delete_and_reopen
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  execsql {
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    PRAGMA page_size = 512;
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    PRAGMA journal_mode = WAL;
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  }
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  faultsim_save_and_close
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} {}
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do_faultsim_test walfault-5 -faults shmerr* -prep {
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  faultsim_restore_and_reopen
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  execsql { PRAGMA wal_autocheckpoint = 0 }
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  shmfault filter xShmMap
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} -body {
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  execsql {
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    CREATE TABLE t1(x);
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    BEGIN;
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      INSERT INTO t1 VALUES(randomblob(400));           /* 1 */
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      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 2 */
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      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 4 */
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      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 8 */
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      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 16 */
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      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 32 */
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      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 64 */
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      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 128 */
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      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 256 */
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      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 512 */
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      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 1024 */
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      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 2048 */
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      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 4096 */
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      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 8192 */
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      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 16384 */
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    COMMIT;
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    SELECT count(*) FROM t1;
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  }
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} -test {
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  faultsim_test_result {0 16384}
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  faultsim_integrity_check
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}
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#--------------------------------------------------------------------------
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#
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do_test walfault-6-pre-1 {
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  faultsim_delete_and_reopen
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  execsql {
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    PRAGMA page_size = 512;
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    PRAGMA journal_mode = WAL;
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    PRAGMA wal_autocheckpoint = 0;
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    CREATE TABLE t1(x);
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    BEGIN;
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      INSERT INTO t1 VALUES(randomblob(400));           /* 1 */
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      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 2 */
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      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 4 */
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      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 8 */
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      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 16 */
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      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 32 */
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      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 64 */
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      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 128 */
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      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 256 */
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      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 512 */
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      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 1024 */
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      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 2048 */
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      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 4096 */
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      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 8192 */
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      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 16384 */
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    COMMIT;
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  }
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  faultsim_save_and_close
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} {}
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do_faultsim_test walfault-6 -faults shmerr* -prep {
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  faultsim_restore_and_reopen
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  shmfault filter xShmMap
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} -body {
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  execsql { SELECT count(*) FROM t1 }
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} -test {
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  faultsim_test_result {0 16384}
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  faultsim_integrity_check
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  set n [db one {SELECT count(*) FROM t1}]
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  if {$n != 16384 && $n != 0} { error "Incorrect number of rows: $n" }
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}
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#--------------------------------------------------------------------------
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#
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do_test walfault-7-pre-1 {
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  faultsim_delete_and_reopen
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  execsql {
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    PRAGMA page_size = 512;
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    PRAGMA journal_mode = WAL;
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    PRAGMA wal_autocheckpoint = 0;
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    CREATE TABLE t1(x);
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    BEGIN;
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      INSERT INTO t1 VALUES(randomblob(400));           /* 1 */
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      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 2 */
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      INSERT INTO t1 SELECT randomblob(400) FROM t1;    /* 4 */
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    COMMIT;
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  }
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  faultsim_save_and_close
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} {}
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do_faultsim_test walfault-7 -prep {
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  faultsim_restore_and_reopen
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} -body {
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  execsql { SELECT count(*) FROM t1 }
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} -test {
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  faultsim_test_result {0 4}
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  set n [db one {SELECT count(*) FROM t1}]
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  if {$n != 4 && $n != 0} { error "Incorrect number of rows: $n" }
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}
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#--------------------------------------------------------------------------
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#
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do_test walfault-8-pre-1 {
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  faultsim_delete_and_reopen
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  execsql {
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    PRAGMA journal_mode = WAL;
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    CREATE TABLE abc(a PRIMARY KEY);
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    INSERT INTO abc VALUES(randomblob(900));
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  }
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  faultsim_save_and_close
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} {}
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do_faultsim_test walfault-8 -prep {
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  faultsim_restore_and_reopen
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  execsql { PRAGMA cache_size = 10 }
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} -body {
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  execsql {
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    BEGIN;
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      INSERT INTO abc SELECT randomblob(900) FROM abc;    /* 1 */
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      --INSERT INTO abc SELECT randomblob(900) FROM abc;    /* 2 */
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      --INSERT INTO abc SELECT randomblob(900) FROM abc;    /* 4 */
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      --INSERT INTO abc SELECT randomblob(900) FROM abc;    /* 8 */
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    ROLLBACK;
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    SELECT count(*) FROM abc;
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  }
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} -test {
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  faultsim_test_result {0 1}
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  faultsim_integrity_check
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  catch { db eval ROLLBACK }
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  faultsim_integrity_check
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  set n [db one {SELECT count(*) FROM abc}]
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  if {$n != 1} { error "Incorrect number of rows: $n" }
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}
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#--------------------------------------------------------------------------
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#
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do_test walfault-9-pre-1 {
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  faultsim_delete_and_reopen
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  execsql {
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    PRAGMA journal_mode = WAL;
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    CREATE TABLE abc(a PRIMARY KEY);
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    INSERT INTO abc VALUES(randomblob(900));
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  }
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  faultsim_save_and_close
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} {}
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do_faultsim_test walfault-9 -prep {
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  #if {$iFail<73} { set iFail 73 }
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  #if {$iFail>73} { exit }
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  faultsim_restore_and_reopen
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  execsql { PRAGMA cache_size = 10 }
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} -body {
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  execsql {
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    BEGIN;
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      INSERT INTO abc SELECT randomblob(900) FROM abc;    /* 1 */
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      SAVEPOINT spoint;
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        INSERT INTO abc SELECT randomblob(900) FROM abc;    /* 2 */
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        INSERT INTO abc SELECT randomblob(900) FROM abc;    /* 4 */
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        INSERT INTO abc SELECT randomblob(900) FROM abc;    /* 8 */
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      ROLLBACK TO spoint;
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    COMMIT;
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    SELECT count(*) FROM abc;
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  }
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} -test {
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  faultsim_test_result {0 2}
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  faultsim_integrity_check
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  catch { db eval { ROLLBACK TO spoint } }
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  catch { db eval { COMMIT } }
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  set n [db one {SELECT count(*) FROM abc}]
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  if {$n != 1 && $n != 2} { error "Incorrect number of rows: $n" }
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}
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do_test walfault-10-pre1 {
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  faultsim_delete_and_reopen
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  execsql {
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    PRAGMA journal_mode = WAL;
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    PRAGMA wal_autocheckpoint = 0;
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    CREATE TABLE z(zz INTEGER PRIMARY KEY, zzz BLOB);
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    CREATE INDEX zzzz ON z(zzz);
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    INSERT INTO z VALUES(NULL, randomblob(800));
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    INSERT INTO z VALUES(NULL, randomblob(800));
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    INSERT INTO z SELECT NULL, randomblob(800) FROM z;
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    INSERT INTO z SELECT NULL, randomblob(800) FROM z;
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    INSERT INTO z SELECT NULL, randomblob(800) FROM z;
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    INSERT INTO z SELECT NULL, randomblob(800) FROM z;
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    INSERT INTO z SELECT NULL, randomblob(800) FROM z;
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  }
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  faultsim_save_and_close
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} {}
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do_faultsim_test walfault-10 -prep {
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  faultsim_restore_and_reopen
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  execsql {
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    PRAGMA cache_size = 10;
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    BEGIN;
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      UPDATE z SET zzz = randomblob(799);
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  }
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  set ::stmt [sqlite3_prepare db "SELECT zzz FROM z WHERE zz IN (1, 2, 3)" -1]
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  sqlite3_step $::stmt
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} -body {
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  execsql { INSERT INTO z VALUES(NULL, NULL) }
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} -test {
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  sqlite3_finalize $::stmt
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  faultsim_integrity_check
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  faultsim_test_result {0 {}}
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  catch { db eval { ROLLBACK } }
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  faultsim_integrity_check
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  set n [db eval {SELECT count(*), sum(length(zzz)) FROM z}]
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  if {$n != "64 51200"} { error "Incorrect data: $n" }
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}
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#--------------------------------------------------------------------------
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# Test fault injection while checkpointing a large WAL file, if the 
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# checkpoint is the first operation run after opening the database.
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# This means that some of the required wal-index pages are mapped as part of
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# the checkpoint process, which means there are a few more opportunities
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# for IO errors.
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#
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# To speed this up, IO errors are only simulated within xShmMap() calls.
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#
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do_test walfault-11-pre-1 {
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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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    PRAGMA wal_autocheckpoint = 0;
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    BEGIN;
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      CREATE TABLE abc(a PRIMARY KEY);
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      INSERT INTO abc VALUES(randomblob(1500));
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      INSERT INTO abc VALUES(randomblob(1500));
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      INSERT INTO abc SELECT randomblob(1500) FROM abc;   --    4
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      INSERT INTO abc SELECT randomblob(1500) FROM abc;   --    8
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      INSERT INTO abc SELECT randomblob(1500) FROM abc;   --   16
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      INSERT INTO abc SELECT randomblob(1500) FROM abc;   --   32
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      INSERT INTO abc SELECT randomblob(1500) FROM abc;   --   64
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      INSERT INTO abc SELECT randomblob(1500) FROM abc;   --  128
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      INSERT INTO abc SELECT randomblob(1500) FROM abc;   --  256
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      INSERT INTO abc SELECT randomblob(1500) FROM abc;   --  512
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      INSERT INTO abc SELECT randomblob(1500) FROM abc;   -- 1024
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      INSERT INTO abc SELECT randomblob(1500) FROM abc;   -- 2048
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      INSERT INTO abc SELECT randomblob(1500) FROM abc;   -- 4096
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    COMMIT;
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  }
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  faultsim_save_and_close
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} {}
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do_faultsim_test walfault-11 -faults shmerr* -prep {
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  catch { db2 close }
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  faultsim_restore_and_reopen
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  shmfault filter xShmMap
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} -body {
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  db eval { SELECT count(*) FROM abc }
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  sqlite3 db2 test.db -vfs shmfault
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  db2 eval { PRAGMA wal_checkpoint }
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  set {} {}
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						|
} -test {
 | 
						|
  faultsim_test_result {0 {}}
 | 
						|
}
 | 
						|
 | 
						|
#-------------------------------------------------------------------------
 | 
						|
# Test the handling of the various IO/OOM/SHM errors that may occur during 
 | 
						|
# a log recovery operation undertaken as part of a call to 
 | 
						|
# sqlite3_wal_checkpoint().
 | 
						|
# 
 | 
						|
do_test walfault-12-pre-1 {
 | 
						|
  faultsim_delete_and_reopen
 | 
						|
  execsql {
 | 
						|
    PRAGMA journal_mode = WAL;
 | 
						|
    PRAGMA wal_autocheckpoint = 0;
 | 
						|
    BEGIN;
 | 
						|
      CREATE TABLE abc(a PRIMARY KEY);
 | 
						|
      INSERT INTO abc VALUES(randomblob(1500));
 | 
						|
      INSERT INTO abc VALUES(randomblob(1500));
 | 
						|
    COMMIT;
 | 
						|
  }
 | 
						|
  faultsim_save_and_close
 | 
						|
} {}
 | 
						|
do_faultsim_test walfault-12 -prep {
 | 
						|
  if {[info commands shmfault] == ""} {
 | 
						|
    testvfs shmfault -default true
 | 
						|
  }
 | 
						|
  faultsim_restore_and_reopen
 | 
						|
  db eval { SELECT * FROM sqlite_master }
 | 
						|
  shmfault shm test.db [string repeat "\000" 40]
 | 
						|
} -body {
 | 
						|
  set rc [sqlite3_wal_checkpoint db]
 | 
						|
  if {$rc != "SQLITE_OK"} { error [sqlite3_errmsg db] }
 | 
						|
} -test {
 | 
						|
  db close
 | 
						|
  faultsim_test_result {0 {}}
 | 
						|
}
 | 
						|
 | 
						|
#-------------------------------------------------------------------------
 | 
						|
# Test simple recovery, reading and writing a database file using a 
 | 
						|
# heap-memory wal-index.
 | 
						|
# 
 | 
						|
do_test walfault-13-pre-1 {
 | 
						|
  faultsim_delete_and_reopen
 | 
						|
  execsql {
 | 
						|
    PRAGMA journal_mode = WAL;
 | 
						|
    PRAGMA wal_autocheckpoint = 0;
 | 
						|
    BEGIN;
 | 
						|
      CREATE TABLE abc(a PRIMARY KEY);
 | 
						|
      INSERT INTO abc VALUES(randomblob(1500));
 | 
						|
      INSERT INTO abc VALUES(randomblob(1500));
 | 
						|
    COMMIT;
 | 
						|
  }
 | 
						|
  faultsim_save_and_close
 | 
						|
  delete_file sv_test.db-shm
 | 
						|
} {}
 | 
						|
 | 
						|
do_faultsim_test walfault-13.1 -prep {
 | 
						|
  faultsim_restore_and_reopen
 | 
						|
} -body {
 | 
						|
  db eval { PRAGMA locking_mode = exclusive }
 | 
						|
  db eval { SELECT count(*) FROM abc }
 | 
						|
} -test {
 | 
						|
  faultsim_test_result {0 2}
 | 
						|
  if {[file exists test.db-shm]} { error "Not using heap-memory mode" }
 | 
						|
  faultsim_integrity_check
 | 
						|
}
 | 
						|
 | 
						|
do_faultsim_test walfault-13.2 -prep {
 | 
						|
  faultsim_restore_and_reopen
 | 
						|
  db eval { PRAGMA locking_mode = exclusive }
 | 
						|
} -body {
 | 
						|
  db eval { PRAGMA journal_mode = delete }
 | 
						|
} -test {
 | 
						|
  faultsim_test_result {0 delete}
 | 
						|
  if {[file exists test.db-shm]} { error "Not using heap-memory mode" }
 | 
						|
  faultsim_integrity_check
 | 
						|
}
 | 
						|
 | 
						|
do_test walfault-13-pre-2 {
 | 
						|
  faultsim_delete_and_reopen
 | 
						|
  execsql {
 | 
						|
    BEGIN;
 | 
						|
      CREATE TABLE abc(a PRIMARY KEY);
 | 
						|
      INSERT INTO abc VALUES(randomblob(1500));
 | 
						|
      INSERT INTO abc VALUES(randomblob(1500));
 | 
						|
    COMMIT;
 | 
						|
  }
 | 
						|
  faultsim_save_and_close
 | 
						|
} {}
 | 
						|
 | 
						|
do_faultsim_test walfault-13.3 -prep {
 | 
						|
  faultsim_restore_and_reopen
 | 
						|
} -body {
 | 
						|
  db eval { 
 | 
						|
    PRAGMA locking_mode = exclusive;
 | 
						|
    PRAGMA journal_mode = WAL;
 | 
						|
    INSERT INTO abc VALUES(randomblob(1500));
 | 
						|
  }
 | 
						|
} -test {
 | 
						|
  faultsim_test_result {0 {exclusive wal}}
 | 
						|
  if {[file exists test.db-shm]} { error "Not using heap-memory mode" }
 | 
						|
  faultsim_integrity_check
 | 
						|
  set nRow [db eval {SELECT count(*) FROM abc}]
 | 
						|
  if {!(($nRow==2 && $testrc) || $nRow==3)} { error "Bad db content" }
 | 
						|
}
 | 
						|
 | 
						|
#-------------------------------------------------------------------------
 | 
						|
# Test fault-handling when wrapping around to the start of a WAL file.
 | 
						|
#
 | 
						|
do_test walfault-14-pre {
 | 
						|
  faultsim_delete_and_reopen
 | 
						|
  execsql {
 | 
						|
    PRAGMA auto_vacuum = 0;
 | 
						|
    PRAGMA journal_mode = WAL;
 | 
						|
    BEGIN;
 | 
						|
      CREATE TABLE abc(a PRIMARY KEY);
 | 
						|
      INSERT INTO abc VALUES(randomblob(1500));
 | 
						|
      INSERT INTO abc VALUES(randomblob(1500));
 | 
						|
    COMMIT;
 | 
						|
  }
 | 
						|
  faultsim_save_and_close
 | 
						|
} {}
 | 
						|
do_faultsim_test walfault-14 -prep {
 | 
						|
  faultsim_restore_and_reopen
 | 
						|
} -body {
 | 
						|
  db eval { 
 | 
						|
    PRAGMA wal_checkpoint = full;
 | 
						|
    INSERT INTO abc VALUES(randomblob(1500));
 | 
						|
  }
 | 
						|
} -test {
 | 
						|
  faultsim_test_result {0 {0 9 9}}
 | 
						|
  faultsim_integrity_check
 | 
						|
  set nRow [db eval {SELECT count(*) FROM abc}]
 | 
						|
  if {!(($nRow==2 && $testrc) || $nRow==3)} { error "Bad db content" }
 | 
						|
}
 | 
						|
 | 
						|
#-------------------------------------------------------------------------
 | 
						|
# Test fault-handling when switching out of exclusive-locking mode.
 | 
						|
#
 | 
						|
do_test walfault-14-pre {
 | 
						|
  faultsim_delete_and_reopen
 | 
						|
  execsql {
 | 
						|
    PRAGMA auto_vacuum = 0;
 | 
						|
    PRAGMA journal_mode = WAL;
 | 
						|
    BEGIN;
 | 
						|
      CREATE TABLE abc(a PRIMARY KEY);
 | 
						|
      INSERT INTO abc VALUES(randomblob(1500));
 | 
						|
      INSERT INTO abc VALUES(randomblob(1500));
 | 
						|
    COMMIT;
 | 
						|
  }
 | 
						|
  faultsim_save_and_close
 | 
						|
} {}
 | 
						|
do_faultsim_test walfault-14 -prep {
 | 
						|
  faultsim_restore_and_reopen
 | 
						|
  execsql {
 | 
						|
    SELECT count(*) FROM abc;
 | 
						|
    PRAGMA locking_mode = exclusive;
 | 
						|
    BEGIN;
 | 
						|
      INSERT INTO abc VALUES(randomblob(1500));
 | 
						|
    COMMIT;
 | 
						|
  }
 | 
						|
} -body {
 | 
						|
  db eval { 
 | 
						|
    PRAGMA locking_mode = normal;
 | 
						|
    BEGIN;
 | 
						|
      INSERT INTO abc VALUES(randomblob(1500));
 | 
						|
    COMMIT;
 | 
						|
  }
 | 
						|
} -test {
 | 
						|
  faultsim_integrity_check
 | 
						|
  set nRow [db eval {SELECT count(*) FROM abc}]
 | 
						|
  if {$nRow!=3 && $nRow!=4} { error "Bad db content" }
 | 
						|
}
 | 
						|
 | 
						|
finish_test
 |