# 2001 October 12
#
# 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 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 1.2 2003/02/16 22:21:33 drh Exp $

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

set ::go 1
for {set n 1} {$go} {incr n} {
  do_test ioerr-1.$n.1 {
    set ::sqlite_io_error_pending 0
    db close
    catch {file delete -force test.db}
    catch {file delete -force test.db-journal}
    sqlite db test.db
    execsql {SELECT * FROM sqlite_master}
  } {}
  do_test ioerr-1.$n.2 [subst {
    set ::sqlite_io_error_pending $n
  }] $n
  do_test ioerr-1.$n.3 {
    set r [catch {db eval {
      CREATE TABLE t1(a,b,c);
      SELECT * FROM sqlite_master;
      BEGIN TRANSACTION;
      INSERT INTO t1 VALUES(1,2,3);
      INSERT INTO t1 VALUES(4,5,6);
      ROLLBACK;
      SELECT * FROM t1;
      BEGIN TRANSACTION;
      INSERT INTO t1 VALUES(1,2,3);
      INSERT INTO t1 VALUES(4,5,6);
      COMMIT;
      SELECT * FROM t1;
      DELETE FROM t1 WHERE a<100;
    }} msg]
    # if {$r} {puts $msg}
    set ::go [expr {$::sqlite_io_error_pending<=0}]
    expr {$::sqlite_io_error_pending>0 || $r!=0}
  } {1}
}
set ::sqlite_io_error_pending 0


finish_test
