# 2014 November 20
#
# 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.
#
#***********************************************************************
#
# Test the rbu_delta() feature.
#

if {![info exists testdir]} {
  set testdir [file join [file dirname [info script]] .. .. test]
}
source $testdir/tester.tcl
set ::testprefix rbu8

do_execsql_test 1.0 {
  CREATE TABLE t1(x, y PRIMARY KEY, z);
  INSERT INTO t1 VALUES(NULL, 1, 'one');
  INSERT INTO t1 VALUES(NULL, 2, 'two');
  INSERT INTO t1 VALUES(NULL, 3, 'three');
  CREATE INDEX i1z ON t1(z, x);
}

do_test 1.1 {
  forcedelete rbu.db
  sqlite3 db2 rbu.db
  db2 eval {
    CREATE TABLE data_t1(x, y, z, rbu_control);
    INSERT INTO data_t1 VALUES('a',    1, '_i'      , 'x.d');
    INSERT INTO data_t1 VALUES('b',    2, 2         , '..x');
    INSERT INTO data_t1 VALUES('_iii', 3, '-III'    , 'd.d');
  }
  db2 close
} {}

do_test 1.2.1 {
  sqlite3rbu rbu test.db rbu.db
  rbu step
} {SQLITE_ERROR}
do_test 1.2.2 {
  list [catch {rbu close} msg] $msg
} {1 {SQLITE_ERROR - no such function: rbu_delta}}

proc rbu_delta {orig new} {
 return "${orig}${new}"
}

do_test 1.3.1 {
  while 1 {
    sqlite3rbu rbu test.db rbu.db
    rbu create_rbu_delta
    set rc [rbu step]
    if {$rc != "SQLITE_OK"} break
    rbu close
  }
  rbu close
} {SQLITE_DONE}

do_execsql_test 1.3.2 {
  SELECT * FROM t1
} {
  a    1 one_i
  {}   2 2
  _iii 3 three-III
}
integrity_check 1.3.3


finish_test