# 2018 December 13
#
# 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 operation of the library in
# "PRAGMA journal_mode=WAL2" mode.
#

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

set testprefix wal2savepoint
ifcapable !wal {finish_test ; return }

do_execsql_test 1.0 {
  CREATE TABLE t1(a, b, c);
  CREATE INDEX t1a ON t1(a);
  CREATE INDEX t1b ON t1(b);
  CREATE INDEX t1c ON t1(c);
  PRAGMA journal_mode = wal2;
  PRAGMA journal_size_limit = 15000;
  PRAGMA wal_autocheckpoint = 0;
  PRAGMA cache_size = 5;
} {wal2 15000 0}

do_execsql_test 1.1 {
  WITH s(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM s where i < 200)
  INSERT INTO t1 SELECT random(), random(), random() FROM s;
} {}

do_test 1.2 {
  list [file size test.db] [file size test.db-wal] [file size test.db-wal2]
} {5120 23088 0}

do_execsql_test 1.3 {
  BEGIN;
    SAVEPOINT abc;
      WITH s(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM s where i < 100)
      INSERT INTO t1 SELECT random(), random(), random() FROM s;
    ROLLBACK TO abc;
    WITH s(i) AS ( SELECT 1 UNION ALL SELECT i+1 FROM s where i < 10)
    INSERT INTO t1 SELECT random(), random(), random() FROM s;
  COMMIT;
  SELECT count(*) FROM t1;
  PRAGMA integrity_check;
} {210 ok}


finish_test

