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SQLite training in Houston TX on 2019-11-05 (details)
Part of the 2019 Tcl Conference

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Overview
Comment:Clean up memory leaks and uninitialized variables detected by valgrind. Identify all tests where we deliberately derefence freed memory by adding a "-misuse" tag. (CVS 3550)
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA1: 70a862702d6dfcfe73bdeef8f0502c6c50e32a3a
User & Date: drh 2007-01-03 23:37:28
Context
2007-01-04
01:20
Add a comment to vdbe.c to explain the use of an uninitialized variable. (CVS 3551) check-in: 1773eb7b user: drh tags: trunk
2007-01-03
23:37
Clean up memory leaks and uninitialized variables detected by valgrind. Identify all tests where we deliberately derefence freed memory by adding a "-misuse" tag. (CVS 3550) check-in: 70a86270 user: drh tags: trunk
23:36
Additional changes in the pager and os interface layers to fix problems that might be contributing to recently observed database corruption. (CVS 3549) check-in: a593d574 user: drh tags: trunk
Changes
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Changes to src/test1.c. 

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**    May you share freely, never taking more than you give.
**
*************************************************************************
** Code for testing all sorts of SQLite interfaces.  This code
** is not included in the SQLite library.  It is used for automated
** testing of the SQLite library.
**
** $Id: test1.c,v 1.225 2006/11/23 09:39:16 drh Exp $
*/
#include "sqliteInt.h"
#include "tcl.h"
#include "os.h"
#include <stdlib.h>
#include <string.h>

................................................................................
  void * clientData,
  Tcl_Interp *interp,
  int objc,
  Tcl_Obj *CONST objv[]
){
  sqlite3_stmt *pStmt;
  int rc;
  sqlite3 *db;

  if( objc!=2 ){
    Tcl_AppendResult(interp, "wrong # args: should be \"",
        Tcl_GetStringFromObj(objv[0], 0), " <STMT>", 0);
    return TCL_ERROR;
  }









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**    May you share freely, never taking more than you give.
**
*************************************************************************
** Code for testing all sorts of SQLite interfaces.  This code
** is not included in the SQLite library.  It is used for automated
** testing of the SQLite library.
**
** $Id: test1.c,v 1.226 2007/01/03 23:37:28 drh Exp $
*/
#include "sqliteInt.h"
#include "tcl.h"
#include "os.h"
#include <stdlib.h>
#include <string.h>

................................................................................
  void * clientData,
  Tcl_Interp *interp,
  int objc,
  Tcl_Obj *CONST objv[]
){
  sqlite3_stmt *pStmt;
  int rc;
  sqlite3 *db = 0;

  if( objc!=2 ){
    Tcl_AppendResult(interp, "wrong # args: should be \"",
        Tcl_GetStringFromObj(objv[0], 0), " <STMT>", 0);
    return TCL_ERROR;
  }

Changes to src/test3.c. 

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**    May you share freely, never taking more than you give.
**
*************************************************************************
** Code for testing the btree.c module in SQLite.  This code
** is not included in the SQLite library.  It is used for automated
** testing of the SQLite library.
**
** $Id: test3.c,v 1.67 2006/08/13 18:39:26 drh Exp $
*/
#include "sqliteInt.h"
#include "pager.h"
#include "btree.h"
#include "tcl.h"
#include <stdlib.h>
#include <string.h>
................................................................................
  }else{
    n = atoi(argv[2]);
  }
  zBuf = malloc( n+1 );
  rc = sqlite3BtreeData(pCur, 0, n, zBuf);
  if( rc ){
    Tcl_AppendResult(interp, errorName(rc), 0);

    return TCL_ERROR;
  }
  zBuf[n] = 0;
  Tcl_AppendResult(interp, zBuf, 0);
  free(zBuf);
  return SQLITE_OK;
}








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**    May you share freely, never taking more than you give.
**
*************************************************************************
** Code for testing the btree.c module in SQLite.  This code
** is not included in the SQLite library.  It is used for automated
** testing of the SQLite library.
**
** $Id: test3.c,v 1.68 2007/01/03 23:37:28 drh Exp $
*/
#include "sqliteInt.h"
#include "pager.h"
#include "btree.h"
#include "tcl.h"
#include <stdlib.h>
#include <string.h>
................................................................................
  }else{
    n = atoi(argv[2]);
  }
  zBuf = malloc( n+1 );
  rc = sqlite3BtreeData(pCur, 0, n, zBuf);
  if( rc ){
    Tcl_AppendResult(interp, errorName(rc), 0);
    free(zBuf);
    return TCL_ERROR;
  }
  zBuf[n] = 0;
  Tcl_AppendResult(interp, zBuf, 0);
  free(zBuf);
  return SQLITE_OK;
}

Changes to src/test8.c. 

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**    May you share freely, never taking more than you give.
**
*************************************************************************
** Code for testing the virtual table interfaces.  This code
** is not included in the SQLite library.  It is used for automated
** testing of the SQLite library.
**
** $Id: test8.c,v 1.43 2006/10/08 18:56:57 drh Exp $
*/
#include "sqliteInt.h"
#include "tcl.h"
#include "os.h"
#include <stdlib.h>
#include <string.h>

................................................................................
  /* Determine the number of rows in the table and store this value in local
  ** variable nRow. The 'estimated-cost' of the scan will be the number of
  ** rows in the table for a linear scan, or the log (base 2) of the 
  ** number of rows if the proposed scan uses an index.  
  */
  zQuery = sqlite3_mprintf("SELECT count(*) FROM %Q", pVtab->zTableName);
  rc = sqlite3_prepare(pVtab->db, zQuery, -1, &pStmt, 0);

  if( rc!=SQLITE_OK ){
    return rc;
  }
  sqlite3_step(pStmt);
  nRow = sqlite3_column_int(pStmt, 0);
  rc = sqlite3_finalize(pStmt);
  if( rc!=SQLITE_OK ){








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**    May you share freely, never taking more than you give.
**
*************************************************************************
** Code for testing the virtual table interfaces.  This code
** is not included in the SQLite library.  It is used for automated
** testing of the SQLite library.
**
** $Id: test8.c,v 1.44 2007/01/03 23:37:29 drh Exp $
*/
#include "sqliteInt.h"
#include "tcl.h"
#include "os.h"
#include <stdlib.h>
#include <string.h>

................................................................................
  /* Determine the number of rows in the table and store this value in local
  ** variable nRow. The 'estimated-cost' of the scan will be the number of
  ** rows in the table for a linear scan, or the log (base 2) of the 
  ** number of rows if the proposed scan uses an index.  
  */
  zQuery = sqlite3_mprintf("SELECT count(*) FROM %Q", pVtab->zTableName);
  rc = sqlite3_prepare(pVtab->db, zQuery, -1, &pStmt, 0);
  sqlite3_free(zQuery);
  if( rc!=SQLITE_OK ){
    return rc;
  }
  sqlite3_step(pStmt);
  nRow = sqlite3_column_int(pStmt, 0);
  rc = sqlite3_finalize(pStmt);
  if( rc!=SQLITE_OK ){

Changes to src/vacuum.c. 

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**
*************************************************************************
** This file contains code used to implement the VACUUM command.
**
** Most of the code in this file may be omitted by defining the
** SQLITE_OMIT_VACUUM macro.
**
** $Id: vacuum.c,v 1.65 2006/11/18 20:20:22 drh Exp $
*/
#include "sqliteInt.h"
#include "vdbeInt.h"
#include "os.h"

#ifndef SQLITE_OMIT_VACUUM
/*
................................................................................
  Db *pDb = 0;            /* Database to detach at end of vacuum */
  char zTemp[SQLITE_TEMPNAME_SIZE+20];  /* Name of the TEMP file */

  /* Save the current value of the write-schema flag before setting it. */
  saved_flags = db->flags;
  db->flags |= SQLITE_WriteSchema | SQLITE_IgnoreChecks;


  if( !db->autoCommit ){
    sqlite3SetString(pzErrMsg, "cannot VACUUM from within a transaction", 
       (char*)0);
    rc = SQLITE_ERROR;
    goto end_of_vacuum;
  }
  pMain = db->aDb[0].pBt;
  sqlite3OsTempFileName(zTemp);

  /* Attach the temporary database as 'vacuum_db'. The synchronous pragma
  ** can be set to 'off' for this file, as it is not recovered if a crash
  ** occurs anyway. The integrity of the database is maintained by a
  ** (possibly synchronous) transaction opened on the main database before
  ** sqlite3BtreeCopyFile() is called.
  **








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**
*************************************************************************
** This file contains code used to implement the VACUUM command.
**
** Most of the code in this file may be omitted by defining the
** SQLITE_OMIT_VACUUM macro.
**
** $Id: vacuum.c,v 1.66 2007/01/03 23:37:29 drh Exp $
*/
#include "sqliteInt.h"
#include "vdbeInt.h"
#include "os.h"

#ifndef SQLITE_OMIT_VACUUM
/*
................................................................................
  Db *pDb = 0;            /* Database to detach at end of vacuum */
  char zTemp[SQLITE_TEMPNAME_SIZE+20];  /* Name of the TEMP file */

  /* Save the current value of the write-schema flag before setting it. */
  saved_flags = db->flags;
  db->flags |= SQLITE_WriteSchema | SQLITE_IgnoreChecks;

  sqlite3OsTempFileName(zTemp);
  if( !db->autoCommit ){
    sqlite3SetString(pzErrMsg, "cannot VACUUM from within a transaction", 
       (char*)0);
    rc = SQLITE_ERROR;
    goto end_of_vacuum;
  }
  pMain = db->aDb[0].pBt;


  /* Attach the temporary database as 'vacuum_db'. The synchronous pragma
  ** can be set to 'off' for this file, as it is not recovered if a crash
  ** occurs anyway. The integrity of the database is maintained by a
  ** (possibly synchronous) transaction opened on the main database before
  ** sqlite3BtreeCopyFile() is called.
  **

Changes to test/btree.test. 

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#    May you find forgiveness for yourself and forgive others.
#    May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this script is btree database backend
#
# $Id: btree.test,v 1.37 2006/08/16 16:42:48 drh Exp $


set testdir [file dirname $argv0]
source $testdir/tester.tcl

ifcapable default_autovacuum {
  finish_test
................................................................................
  set data "*** This is a very long key "
  while {[string length $data]<1234} {append data $data}
  set ::data $data
  btree_insert $::c1 2020 $data
} {}
btree_page_dump $::b1 1
btree_page_dump $::b1 2
btree_page_dump $::b1 3
do_test btree-8.1.1 {
  lindex [btree_pager_stats $::b1] 1
} {1}
#btree_pager_ref_dump $::b1
do_test btree-8.2 {
  btree_move_to $::c1 2020
  string length [btree_data $::c1]








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#    May you find forgiveness for yourself and forgive others.
#    May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this script is btree database backend
#
# $Id: btree.test,v 1.38 2007/01/03 23:37:29 drh Exp $


set testdir [file dirname $argv0]
source $testdir/tester.tcl

ifcapable default_autovacuum {
  finish_test
................................................................................
  set data "*** This is a very long key "
  while {[string length $data]<1234} {append data $data}
  set ::data $data
  btree_insert $::c1 2020 $data
} {}
btree_page_dump $::b1 1
btree_page_dump $::b1 2

do_test btree-8.1.1 {
  lindex [btree_pager_stats $::b1] 1
} {1}
#btree_pager_ref_dump $::b1
do_test btree-8.2 {
  btree_move_to $::c1 2020
  string length [btree_data $::c1]

Changes to test/capi2.test. 

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#    May you find forgiveness for yourself and forgive others.
#    May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this script testing the callback-free C/C++ API.
#
# $Id: capi2.test,v 1.32 2006/08/16 16:42:48 drh Exp $
#

set testdir [file dirname $argv0]
source $testdir/tester.tcl

# Return the text values from the current row pointed at by STMT as a list.
proc get_row_values {STMT} {
................................................................................
} {name rowid text INTEGER}
do_test capi2-1.6 {
  sqlite3_step $VM 
} {SQLITE_DONE}
do_test capi2-1.7 {
  list [sqlite3_column_count $VM] [get_row_values $VM] [get_column_names $VM]
} {2 {} {name rowid text INTEGER}}
do_test capi2-1.8 {
  sqlite3_step $VM
} {SQLITE_MISUSE}

# Update: In v2, once SQLITE_MISUSE is returned the statement handle cannot
# be interrogated for more information. However in v3, since the column
# count, names and types are determined at compile time, these are still
# accessible after an SQLITE_MISUSE error.
................................................................................
# finalized. Is this going to cause trouble for anyone? Lee Nelson maybe?
# (Later:) The change now happens just before SQLITE_DONE is returned.
do_test capi2-3.10b {db changes} {1}
do_test capi2-3.11 {
  sqlite3_finalize $VM
} {SQLITE_OK}
do_test capi2-3.11b {db changes} {1}
do_test capi2-3.12 {
  sqlite3_finalize $VM
} {SQLITE_MISUSE}
do_test capi2-3.13 {
  set VM [sqlite3_prepare $DB {INSERT INTO t1 VALUES(1,3,4)} -1 TAIL]
  list [sqlite3_step $VM] \
       [sqlite3_column_count $VM] \
       [get_row_values $VM] \








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#    May you find forgiveness for yourself and forgive others.
#    May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this script testing the callback-free C/C++ API.
#
# $Id: capi2.test,v 1.33 2007/01/03 23:37:29 drh Exp $
#

set testdir [file dirname $argv0]
source $testdir/tester.tcl

# Return the text values from the current row pointed at by STMT as a list.
proc get_row_values {STMT} {
................................................................................
} {name rowid text INTEGER}
do_test capi2-1.6 {
  sqlite3_step $VM 
} {SQLITE_DONE}
do_test capi2-1.7 {
  list [sqlite3_column_count $VM] [get_row_values $VM] [get_column_names $VM]
} {2 {} {name rowid text INTEGER}}
do_test capi2-1.8-misuse {
  sqlite3_step $VM
} {SQLITE_MISUSE}

# Update: In v2, once SQLITE_MISUSE is returned the statement handle cannot
# be interrogated for more information. However in v3, since the column
# count, names and types are determined at compile time, these are still
# accessible after an SQLITE_MISUSE error.
................................................................................
# finalized. Is this going to cause trouble for anyone? Lee Nelson maybe?
# (Later:) The change now happens just before SQLITE_DONE is returned.
do_test capi2-3.10b {db changes} {1}
do_test capi2-3.11 {
  sqlite3_finalize $VM
} {SQLITE_OK}
do_test capi2-3.11b {db changes} {1}
do_test capi2-3.12-misuse {
  sqlite3_finalize $VM
} {SQLITE_MISUSE}
do_test capi2-3.13 {
  set VM [sqlite3_prepare $DB {INSERT INTO t1 VALUES(1,3,4)} -1 TAIL]
  list [sqlite3_step $VM] \
       [sqlite3_column_count $VM] \
       [get_row_values $VM] \

Changes to test/capi3.test. 

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#    May you find forgiveness for yourself and forgive others.
#    May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this script testing the callback-free C/C++ API.
#
# $Id: capi3.test,v 1.46 2006/08/16 16:42:48 drh Exp $
#

set testdir [file dirname $argv0]
source $testdir/tester.tcl

# Return the UTF-16 representation of the supplied UTF-8 string $str.
# If $nt is true, append two 0x00 bytes as a nul terminator.
................................................................................
} {SQLITE_CANTOPEN}
do_test capi3-3.4 {
  sqlite3_errmsg $db2
} {unable to open database file}
do_test capi3-3.5 {
  sqlite3_close $db2
} {SQLITE_OK}
do_test capi3-3.6.1 {
  sqlite3_close $db2
} {SQLITE_MISUSE}
do_test capi3-3.6.2 {
  sqlite3_errmsg $db2
} {library routine called out of sequence}
ifcapable {utf16} {
  do_test capi3-3.6.3 {
    utf8 [sqlite3_errmsg16 $db2]
  } {library routine called out of sequence}
}

# rename sqlite3_open ""
# rename sqlite3_open_old sqlite3_open

................................................................................
do_test capi3-6.2 {
  sqlite3_step $STMT
} {SQLITE_ROW}
check_data $STMT capi3-6.3 {INTEGER} {1} {1.0} {1}
do_test capi3-6.3 {
  sqlite3_finalize $STMT
} {SQLITE_OK}
do_test capi3-6.4 {
  db cache flush
  sqlite3_close $DB
} {SQLITE_OK}
db close

if {![sqlite3 -has-codec]} {
  # Test what happens when the library encounters a newer file format.
................................................................................
    set ms [sqlite3_sleep 80]
    expr {$ms==80 || $ms==1000}
  } {1}
}

# Ticket #1219:  Make sure binding APIs can handle a NULL pointer.
#
do_test capi3-14.1 {
  set rc [catch {sqlite3_bind_text 0 1 hello 5} msg]
  lappend rc $msg
} {1 SQLITE_MISUSE}

# Ticket #1650:  Honor the nBytes parameter to sqlite3_prepare.
#
do_test capi3-15.1 {








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#    May you find forgiveness for yourself and forgive others.
#    May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this script testing the callback-free C/C++ API.
#
# $Id: capi3.test,v 1.47 2007/01/03 23:37:29 drh Exp $
#

set testdir [file dirname $argv0]
source $testdir/tester.tcl

# Return the UTF-16 representation of the supplied UTF-8 string $str.
# If $nt is true, append two 0x00 bytes as a nul terminator.
................................................................................
} {SQLITE_CANTOPEN}
do_test capi3-3.4 {
  sqlite3_errmsg $db2
} {unable to open database file}
do_test capi3-3.5 {
  sqlite3_close $db2
} {SQLITE_OK}
do_test capi3-3.6.1-misuse {
  sqlite3_close $db2
} {SQLITE_MISUSE}
do_test capi3-3.6.2-misuse {
  sqlite3_errmsg $db2
} {library routine called out of sequence}
ifcapable {utf16} {
  do_test capi3-3.6.3-misuse {
    utf8 [sqlite3_errmsg16 $db2]
  } {library routine called out of sequence}
}

# rename sqlite3_open ""
# rename sqlite3_open_old sqlite3_open

................................................................................
do_test capi3-6.2 {
  sqlite3_step $STMT
} {SQLITE_ROW}
check_data $STMT capi3-6.3 {INTEGER} {1} {1.0} {1}
do_test capi3-6.3 {
  sqlite3_finalize $STMT
} {SQLITE_OK}
do_test capi3-6.4-misuse {
  db cache flush
  sqlite3_close $DB
} {SQLITE_OK}
db close

if {![sqlite3 -has-codec]} {
  # Test what happens when the library encounters a newer file format.
................................................................................
    set ms [sqlite3_sleep 80]
    expr {$ms==80 || $ms==1000}
  } {1}
}

# Ticket #1219:  Make sure binding APIs can handle a NULL pointer.
#
do_test capi3-14.1-misuse {
  set rc [catch {sqlite3_bind_text 0 1 hello 5} msg]
  lappend rc $msg
} {1 SQLITE_MISUSE}

# Ticket #1650:  Honor the nBytes parameter to sqlite3_prepare.
#
do_test capi3-15.1 {

Changes to test/conflict.test. 

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#
#***********************************************************************
# This file implements regression tests for SQLite library.
#
# This file implements tests for the conflict resolution extension
# to SQLite.
#
# $Id: conflict.test,v 1.27 2006/01/17 09:35:02 danielk1977 Exp $

set testdir [file dirname $argv0]
source $testdir/tester.tcl

ifcapable !conflict {
  finish_test
  return
................................................................................
  if {$t0} {set t1 {column a is not unique}}
  do_test conflict-6.$i {
    db close
    sqlite3 db test.db 
    if {$conf1!=""} {set conf1 "ON CONFLICT $conf1"}
    execsql {pragma temp_store=file}
    set ::sqlite_opentemp_count 0

    set r0 [catch {execsql [subst {
      DROP TABLE t1;
      CREATE TABLE t1(a,b,c, UNIQUE(a) $conf1);
      INSERT INTO t1 SELECT * FROM t2;
      UPDATE t3 SET x=0;
      BEGIN;
      $cmd t3 SET x=1;








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#
#***********************************************************************
# This file implements regression tests for SQLite library.
#
# This file implements tests for the conflict resolution extension
# to SQLite.
#
# $Id: conflict.test,v 1.28 2007/01/03 23:37:29 drh Exp $

set testdir [file dirname $argv0]
source $testdir/tester.tcl

ifcapable !conflict {
  finish_test
  return
................................................................................
  if {$t0} {set t1 {column a is not unique}}
  do_test conflict-6.$i {
    db close
    sqlite3 db test.db 
    if {$conf1!=""} {set conf1 "ON CONFLICT $conf1"}
    execsql {pragma temp_store=file}
    set ::sqlite_opentemp_count 0
if {$i==2} btree_breakpoint
    set r0 [catch {execsql [subst {
      DROP TABLE t1;
      CREATE TABLE t1(a,b,c, UNIQUE(a) $conf1);
      INSERT INTO t1 SELECT * FROM t2;
      UPDATE t3 SET x=0;
      BEGIN;
      $cmd t3 SET x=1;

Changes to test/ioerr.test. 

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# This file implements regression tests for SQLite library.  The
# focus of this file is testing for correct handling of I/O errors
# such as writes failing because the disk is full.
# 
# The tests in this file use special facilities that are only
# available in the SQLite test fixture.
#
# $Id: ioerr.test,v 1.27 2006/09/15 07:28:51 drh Exp $

set testdir [file dirname $argv0]
source $testdir/tester.tcl


# If SQLITE_DEFAULT_AUTOVACUUM is set to true, then a simulated IO error
# on the 8th IO operation in the SQL script below doesn't report an error.
................................................................................

# Test handling of IO errors that occur while rolling back hot journal
# files.
#
# These tests can't be run on windows because the windows version of 
# SQLite holds a mandatory exclusive lock on journal files it has open.
#

if {$tcl_platform(platform)!="windows"} {
  do_ioerr_test ioerr-7 -tclprep {
    db close
    sqlite3 db2 test2.db
    db2 eval {
      PRAGMA synchronous = 0;
      CREATE TABLE t1(a, b);








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# This file implements regression tests for SQLite library.  The
# focus of this file is testing for correct handling of I/O errors
# such as writes failing because the disk is full.
# 
# The tests in this file use special facilities that are only
# available in the SQLite test fixture.
#
# $Id: ioerr.test,v 1.28 2007/01/03 23:37:29 drh Exp $

set testdir [file dirname $argv0]
source $testdir/tester.tcl


# If SQLITE_DEFAULT_AUTOVACUUM is set to true, then a simulated IO error
# on the 8th IO operation in the SQL script below doesn't report an error.
................................................................................

# Test handling of IO errors that occur while rolling back hot journal
# files.
#
# These tests can't be run on windows because the windows version of 
# SQLite holds a mandatory exclusive lock on journal files it has open.
#
btree_breakpoint
if {$tcl_platform(platform)!="windows"} {
  do_ioerr_test ioerr-7 -tclprep {
    db close
    sqlite3 db2 test2.db
    db2 eval {
      PRAGMA synchronous = 0;
      CREATE TABLE t1(a, b);

Changes to test/misc5.test. 

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#
#***********************************************************************
# This file implements regression tests for SQLite library.
#
# This file implements tests for miscellanous features that were
# left out of other test files.
#
# $Id: misc5.test,v 1.15 2006/08/12 12:33:15 drh Exp $

set testdir [file dirname $argv0]
source $testdir/tester.tcl

# Build records using the MakeRecord opcode such that the size of the 
# header is at the transition point in the size of a varint.
#
................................................................................
  }
  append sql 2$tail
  catchsql $sql
} {1 {parser stack overflow}}

# Check the MISUSE return from sqlitee3_busy_timeout
#
do_test misc5-8.1 {
  set DB [sqlite3_connection_pointer db]
  db close
  sqlite3_busy_timeout $DB 1000
} SQLITE_MISUSE
sqlite3 db test.db

# Ticket #1911








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#
#***********************************************************************
# This file implements regression tests for SQLite library.
#
# This file implements tests for miscellanous features that were
# left out of other test files.
#
# $Id: misc5.test,v 1.16 2007/01/03 23:37:29 drh Exp $

set testdir [file dirname $argv0]
source $testdir/tester.tcl

# Build records using the MakeRecord opcode such that the size of the 
# header is at the transition point in the size of a varint.
#
................................................................................
  }
  append sql 2$tail
  catchsql $sql
} {1 {parser stack overflow}}

# Check the MISUSE return from sqlitee3_busy_timeout
#
do_test misc5-8.1-misuse {
  set DB [sqlite3_connection_pointer db]
  db close
  sqlite3_busy_timeout $DB 1000
} SQLITE_MISUSE
sqlite3 db test.db

# Ticket #1911

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