# 2008 Feb 19
#
# 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.
#
#***********************************************************************
#
# The focus of this file is testing that the r-tree correctly handles
# out-of-memory conditions.
#

if {![info exists testdir]} {
  set testdir [file join [file dirname [info script]] .. .. test]
} 
source $testdir/tester.tcl
source $testdir/malloc_common.tcl
ifcapable !rtree {
  finish_test
  return
}

# Test summary:
#
#   rtree3-1: Test OOM in simple CREATE TABLE, INSERT, DELETE and SELECT 
#             commands on an almost empty table.
#
#   rtree3-2: Test OOM in a DROP TABLE command.
#
#   rtree3-3a: Test OOM during a transaction to insert 100 pseudo-random rows.
#
#   rtree3-3b: Test OOM during a transaction deleting all entries in the
#              database constructed in [rtree3-3a] in pseudo-random order.
#
#   rtree3-4a: OOM during "SELECT count(*) FROM ..." on a big table.
#
#   rtree3-4b: OOM while deleting rows from a big table.
#
#   rtree3-5: Test OOM while inserting rows into a big table.
#
#   rtree3-6: Test OOM while deleting all rows of a table, one at a time.
#
#   rtree3-7: OOM during an ALTER TABLE RENAME TABLE command.
#
#   rtree3-8: Test OOM while registering the r-tree module with sqlite.
#

do_faultsim_test rtree3-1 -faults oom* -prep {
  faultsim_delete_and_reopen
} -body {
  execsql {
    BEGIN TRANSACTION;
    CREATE VIRTUAL TABLE rt USING rtree(ii, x1, x2, y1, y2);
    INSERT INTO rt VALUES(NULL, 3, 5, 7, 9);
    INSERT INTO rt VALUES(NULL, 13, 15, 17, 19);
    DELETE FROM rt WHERE ii = 1;
    SELECT * FROM rt;
    SELECT ii FROM rt WHERE ii = 2;
    COMMIT;
  }
}

do_test rtree3-2.prep {
  faultsim_delete_and_reopen
  execsql {
    CREATE VIRTUAL TABLE rt USING rtree(ii, x1, x2, y1, y2);
    INSERT INTO rt VALUES(NULL, 3, 5, 7, 9);
  }
  faultsim_save_and_close
} {}
do_faultsim_test rtree3-2 -faults oom* -prep {
  faultsim_restore_and_reopen
} -body {
  execsql { DROP TABLE rt } 
}

do_malloc_test rtree3-3.prep {
  faultsim_delete_and_reopen
  execsql {
    CREATE VIRTUAL TABLE rt USING rtree(ii, x1, x2, y1, y2);
    INSERT INTO rt VALUES(NULL, 3, 5, 7, 9);
  }
  faultsim_save_and_close
} {}

do_faultsim_test rtree3-3a -faults oom* -prep {
  faultsim_restore_and_reopen
} -body {
  db eval BEGIN
  for {set ii 0} {$ii < 100} {incr ii} {
    set f [expr rand()]
    db eval {INSERT INTO rt VALUES(NULL, $f*10.0, $f*10.0, $f*15.0, $f*15.0)}
  }
  db eval COMMIT
}
faultsim_save_and_close

do_faultsim_test rtree3-3b -faults oom* -prep {
  faultsim_restore_and_reopen
} -body {
  db eval BEGIN
  for {set ii 0} {$ii < 100} {incr ii} {
    set f [expr rand()]
    db eval { DELETE FROM rt WHERE x1<($f*10.0) AND x1>($f*10.5) }
  }
  db eval COMMIT
} 

do_test rtree3-4.prep {
  faultsim_delete_and_reopen
  execsql {
    BEGIN;
    PRAGMA page_size = 512;
    CREATE VIRTUAL TABLE rt USING rtree(ii, x1, x2, y1, y2);
  }
  for {set i 0} {$i < 1500} {incr i} {
    execsql { INSERT INTO rt VALUES($i, $i, $i+1, $i, $i+1) }
  }
  execsql { COMMIT }
  faultsim_save_and_close
} {}

do_faultsim_test rtree3-4a -faults oom-* -prep {
  faultsim_restore_and_reopen
} -body {
  db eval { SELECT count(*) FROM rt }
} -test {
  faultsim_test_result {0 1500}
}

do_faultsim_test rtree3-4b -faults oom-transient -prep {
  faultsim_restore_and_reopen
} -body {
  db eval { DELETE FROM rt WHERE ii BETWEEN 1 AND 100 }
} -test {
  faultsim_test_result {0 {}}
}

do_test rtree3-5.prep {
  faultsim_delete_and_reopen
  execsql {
    BEGIN;
    PRAGMA page_size = 512;
    CREATE VIRTUAL TABLE rt USING rtree(ii, x1, x2, y1, y2);
  }
  for {set i 0} {$i < 100} {incr i} {
    execsql { INSERT INTO rt VALUES($i, $i, $i+1, $i, $i+1) }
  }
  execsql { COMMIT }
  faultsim_save_and_close
} {}
do_faultsim_test rtree3-5 -faults oom-* -prep {
  faultsim_restore_and_reopen
} -body {
  for {set i 100} {$i < 110} {incr i} {
    execsql { INSERT INTO rt VALUES($i, $i, $i+1, $i, $i+1) }
  }
} -test {
  faultsim_test_result {0 {}}
}

do_test rtree3-6.prep {
  faultsim_delete_and_reopen
  execsql {
    BEGIN;
    PRAGMA page_size = 512;
    CREATE VIRTUAL TABLE rt USING rtree(ii, x1, x2, y1, y2);
  }
  for {set i 0} {$i < 50} {incr i} {
    execsql { INSERT INTO rt VALUES($i, $i, $i+1, $i, $i+1) }
  }
  execsql { COMMIT }
  faultsim_save_and_close
} {}
do_faultsim_test rtree3-6 -faults oom-* -prep {
  faultsim_restore_and_reopen
} -body {
  execsql BEGIN
  for {set i 0} {$i < 50} {incr i} {
    execsql { DELETE FROM rt WHERE ii=$i }
  }
  execsql COMMIT
} -test {
  faultsim_test_result {0 {}}
}

do_test rtree3-7.prep {
  faultsim_delete_and_reopen
  execsql { CREATE VIRTUAL TABLE rt USING rtree(ii, x1, x2, y1, y2) }
  faultsim_save_and_close
} {}
do_faultsim_test rtree3-7 -faults oom-* -prep {
  faultsim_restore_and_reopen
} -body {
  execsql { ALTER TABLE rt RENAME TO rt2 }
} -test {
  faultsim_test_result {0 {}}
}

do_faultsim_test rtree3-8 -faults oom-* -prep {
  catch { db close }
} -body {
  sqlite3 db test.db
} 

finish_test
