# 2005 January 11

#

# The author disclaims copyright to this source code.  In place of

# a legal notice, here is a blessing:

#

#    May you do good and not evil.

#    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 file is testing the sqlite3SafetyOn and sqlite3SafetyOff

# functions.  Those routines are not strictly necessary - they are

# designed to detect misuse of the library.

#

# $Id: safety.test,v 1.4 2008/03/18 13:46:53 drh Exp $

set testdir [file dirname $argv0]

source $testdir/tester.tcl

ifcapable !debug {

  puts "Skipping safety tests since SQLITE_DEBUG is off"

  finish_test

  return

}

# Return the UTF-8 representation of the supplied UTF-16 string $str. 

proc utf8 {str} {

  # If $str ends in two 0x00 0x00 bytes, knock these off before

  # converting to UTF-8 using TCL.

  binary scan $str \c* vals

  if {[lindex $vals end]==0 && [lindex $vals end-1]==0} {

    set str [binary format \c* [lrange $vals 0 end-2]]

  }

  set r [encoding convertfrom unicode $str]

  return $r

}

do_test safety-1.1 {

  set DB [sqlite3_connection_pointer db]

  db eval {CREATE TABLE t1(a)}

  sqlite_set_magic $DB SQLITE_MAGIC_BUSY

  catchsql {

    SELECT name FROM sqlite_master;

  }

} {1 {library routine called out of sequence}}

do_test safety-1.2 {

  sqlite_set_magic $DB SQLITE_MAGIC_OPEN

  catchsql {

    SELECT name FROM sqlite_master

  }

} {0 t1}

do_test safety-2.1 {

  proc safety_on {} "sqlite_set_magic $DB SQLITE_MAGIC_BUSY"

  db function safety_on safety_on

  catchsql {

    SELECT safety_on(), name FROM sqlite_master

  }

} {1 {library routine called out of sequence}}

ifcapable {utf16} {

  do_test safety-2.1.1 {

    utf8 [sqlite3_errmsg16 db]

  } {library routine called out of sequence}

}

do_test safety-2.2 {

  catchsql {

    SELECT 'hello'

  }

} {1 {library routine called out of sequence}}

do_test safety-2.3 {

  sqlite3_close $DB

} {SQLITE_MISUSE}

do_test safety-2.4 {

  sqlite_set_magic $DB SQLITE_MAGIC_OPEN

  execsql {

    SELECT name FROM sqlite_master

  }

} {t1}

do_test safety-3.1 {

  set rc [catch {

    db eval {SELECT name FROM sqlite_master} {

      sqlite_set_magic $DB SQLITE_MAGIC_BUSY

    }

  } msg]

  lappend rc $msg

} {1 {library routine called out of sequence}}

sqlite_set_magic $DB SQLITE_MAGIC_OPEN

finish_test