rollback.test

sqlite-3.4.1,嵌入式数据库.是一个功能强大的开源数据库,给学习和研发以及小型公司的发展带来了全所未有的好处.

# 2004 June 30
#
# 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 verifying that a rollback in one statement
# caused by an ON CONFLICT ROLLBACK clause aborts any other pending
# statements.
#
# $Id: rollback.test,v 1.4 2006/01/17 09:35:02 danielk1977 Exp $

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

set DB [sqlite3_connection_pointer db]

do_test rollback-1.1 {
  execsql {
    CREATE TABLE t1(a);
    INSERT INTO t1 VALUES(1);
    INSERT INTO t1 VALUES(2);
    INSERT INTO t1 VALUES(3);
    INSERT INTO t1 VALUES(4);
    SELECT * FROM t1;
  }
} {1 2 3 4}

ifcapable conflict {
  do_test rollback-1.2 {
    execsql {
      CREATE TABLE t3(a unique on conflict rollback);
      INSERT INTO t3 SELECT a FROM t1;
      BEGIN;
      INSERT INTO t1 SELECT * FROM t1;
    }
  } {}
}
do_test rollback-1.3 {
  set STMT [sqlite3_prepare $DB "SELECT a FROM t1" -1 TAIL]
  sqlite3_step $STMT
} {SQLITE_ROW}

ifcapable conflict {
  # This causes a ROLLBACK, which deletes the table out from underneath the
  # SELECT statement.
  #
  do_test rollback-1.4 {
    catchsql {
      INSERT INTO t3 SELECT a FROM t1;
    }
  } {1 {column a is not unique}}
  
  # Try to continue with the SELECT statement
  #
  do_test rollback-1.5 {
    sqlite3_step $STMT
  } {SQLITE_ABORT}
}

# Restart the SELECT statement
#
do_test rollback-1.6 {
  sqlite3_reset $STMT
} {SQLITE_OK}
do_test rollback-1.7 {
  sqlite3_step $STMT
} {SQLITE_ROW}
do_test rollback-1.8 {
  sqlite3_step $STMT
} {SQLITE_ROW}
do_test rollback-1.9 {
  sqlite3_finalize $STMT
} {SQLITE_OK}

finish_test