# 2010 June 15
#
# 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.
#
#***********************************************************************
#

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

set ::testprefix fts3fault

# If SQLITE_ENABLE_FTS3 is not defined, omit this file.
ifcapable !fts3 { finish_test ; return }

# Test error handling in the sqlite3Fts3Init() function. This is the 
# function that registers the FTS3 module and various support functions
# with SQLite.
#
do_faultsim_test 1 -body { 
  sqlite3 db test.db 
  expr 0
} -test {
  catch { db close }
}

# Test error handling in an "ALTER TABLE ... RENAME TO" statement on an
# FTS3 table. Specifically, test renaming the table within a transaction
# after it has been written to.
#
faultsim_delete_and_reopen
do_execsql_test 2.0 {
  CREATE VIRTUAL TABLE t1 USING fts3;
  INSERT INTO t1 VALUES('test renaming the table');
  INSERT INTO t1 VALUES(' after it has been written');
}
do_faultsim_test 2 -prep { 
  sqlite3 db test.db
  execsql {
    BEGIN;
      INSERT INTO t1 VALUES('registers the FTS3 module');
      INSERT INTO t1 VALUES('various support functions');
  }
} -body {
  execsql { ALTER TABLE t1 RENAME TO t2 }
} -test {
  faultsim_test_result {0 {}} 
}

# Test error handling in the special case where a single prefix query 
# matches terms that reside on a large range of leaf nodes.
#
do_test fts3fault-3.0 {
  sqlite3 db test.db
  execsql { CREATE VIRTUAL TABLE t3 USING fts4; }
  execsql { INSERT INTO t3(t3) VALUES('nodesize=50') }
  execsql { BEGIN }
  for {set i 0} {$i < 1000} {incr i} {
    execsql { INSERT INTO t3 VALUES('aaa' || $i) }
  }
  execsql { COMMIT }
} {}

do_faultsim_test 3 -faults oom-transient -prep { 
  sqlite3 db test.db
  execsql { SELECT * FROM t3 WHERE t3 MATCH 'x' }
} -body {
  execsql { SELECT count(rowid) FROM t3 WHERE t3 MATCH 'aa*' }
} -test {
  faultsim_test_result {0 1000} 
}

do_test fts3fault-4.0 {
  faultsim_delete_and_reopen
  execsql { 
    CREATE VIRTUAL TABLE t4 USING fts4; 
    INSERT INTO t4 VALUES('The British Government called on');
    INSERT INTO t4 VALUES('as pesetas then became much');
  }
} {}
faultsim_save_and_close
do_faultsim_test 4 -prep { 
  faultsim_restore_and_reopen
  execsql { SELECT content FROM t4 }
} -body {
  execsql { SELECT optimize(t4) FROM t4 LIMIT 1 }
} -test {
  faultsim_test_result {0 {{Index optimized}}}
}

do_test fts3fault-5.0 {
  faultsim_delete_and_reopen
  execsql { 
    CREATE VIRTUAL TABLE t5 USING fts4; 
    INSERT INTO t5 VALUES('The British Government called on');
    INSERT INTO t5 VALUES('as pesetas then became much');
  }
} {}
faultsim_save_and_close
do_faultsim_test 5 -prep { 
  faultsim_restore_and_reopen
  execsql { 
    BEGIN;
      INSERT INTO t5 VALUES('influential in shaping his future outlook');
      INSERT INTO t5 VALUES('might be acceptable to the British electorate');
  }
} -body {
  execsql { SELECT rowid FROM t5 WHERE t5 MATCH 'british' }
} -test {
  faultsim_test_result {0 {1 4}}
}

do_test fts3fault-6.0 {
  faultsim_delete_and_reopen
  execsql { CREATE VIRTUAL TABLE t6 USING fts4 }
} {}
faultsim_save_and_close
do_faultsim_test 6 -prep { 
  faultsim_restore_and_reopen
  execsql { SELECT rowid FROM t6 }
} -body {
  execsql { DROP TABLE t6 }
} -test {
  faultsim_test_result {0 {}}
}

# Test various malloc failures while processing FTS4 parameters.
#
do_faultsim_test 7.1 -prep { 
  faultsim_delete_and_reopen
} -body {
  execsql { CREATE VIRTUAL TABLE t1 USING fts4(a, b, matchinfo=fts3) }
} -test {
  faultsim_test_result {0 {}}
}
do_faultsim_test 7.2 -prep { 
  faultsim_delete_and_reopen
} -body {
  execsql { CREATE VIRTUAL TABLE t1 USING fts4(a, b, matchinfo=fs3) }
} -test {
  faultsim_test_result {1 {unrecognized matchinfo: fs3}} \
                       {1 {vtable constructor failed: t1}} \
                       {1 {SQL logic error or missing database}}
}
do_faultsim_test 7.3 -prep { 
  faultsim_delete_and_reopen
} -body {
  execsql { CREATE VIRTUAL TABLE t1 USING fts4(a, b, matchnfo=fts3) }
} -test {
  faultsim_test_result {1 {unrecognized parameter: matchnfo=fts3}} \
                       {1 {vtable constructor failed: t1}} \
                       {1 {SQL logic error or missing database}}
}

proc mit {blob} {
  set scan(littleEndian) i*
  set scan(bigEndian) I*
  binary scan $blob $scan($::tcl_platform(byteOrder)) r
  return $r
}

do_test 8.0 {
  faultsim_delete_and_reopen
  execsql { CREATE VIRTUAL TABLE t8 USING fts4 }
  execsql "INSERT INTO t8 VALUES('a b c')"
  execsql "INSERT INTO t8 VALUES('b b b')"
  execsql "INSERT INTO t8 VALUES('[string repeat {c } 50000]')"
  execsql "INSERT INTO t8 VALUES('d d d')"
  execsql "INSERT INTO t8 VALUES('e e e')"
  execsql "INSERT INTO t8(t8) VALUES('optimize')"
  faultsim_save_and_close
} {}

do_faultsim_test 8.1 -prep { 
  faultsim_restore_and_reopen
  db func mit mit
} -body {
  execsql { SELECT mit(matchinfo(t8, 'x')) FROM t8 WHERE t8 MATCH 'a b c' }
} -test {
  faultsim_test_result {0 {{1 1 1 1 4 2 1 5 5}}}
}
do_faultsim_test 8.2 -faults oom-t* -prep { 
  faultsim_restore_and_reopen
  db func mit mit
} -body {
  execsql { SELECT mit(matchinfo(t8, 's')) FROM t8 WHERE t8 MATCH 'a b c' }
} -test {
  faultsim_test_result {0 3}
}
do_faultsim_test 8.3 -prep { 
  faultsim_restore_and_reopen
  db func mit mit
} -body {
  execsql { SELECT mit(matchinfo(t8, 'a')) FROM t8 WHERE t8 MATCH 'a b c' }
} -test {
  faultsim_test_result {0 10002}
}
do_faultsim_test 8.4 -prep { 
  faultsim_restore_and_reopen
  db func mit mit
} -body {
  execsql { SELECT mit(matchinfo(t8, 'l')) FROM t8 WHERE t8 MATCH 'a b c' }
} -test {
  faultsim_test_result {0 3}
}

do_test 9.0 {
  faultsim_delete_and_reopen
  execsql {
    CREATE VIRTUAL TABLE t9 USING fts4(tokenize=porter);
    INSERT INTO t9 VALUES(
      'this record is used toooooooooooooooooooooooooooooooooooooo try to'
    );
    SELECT offsets(t9) FROM t9 WHERE t9 MATCH 'to*';
  }
  faultsim_save_and_close
} {}
do_faultsim_test 9.1 -prep {
  faultsim_restore_and_reopen
} -body {
  execsql { SELECT offsets(t9) FROM t9 WHERE t9 MATCH 'to*' }
} -test {
  faultsim_test_result {0 {{0 0 20 39 0 0 64 2}}}
}

finish_test