# 2015 Jan 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 contains tests focused on the integrity-check procedure.
#

source [file join [file dirname [info script]] fts5_common.tcl]
set testprefix fts5integrity

# If SQLITE_ENABLE_FTS5 is defined, omit this file.
ifcapable !fts5 {
  finish_test
  return
}

do_execsql_test 1.0 {
  CREATE VIRTUAL TABLE xx USING fts5(x);
  INSERT INTO xx VALUES('term');
}
do_execsql_test 1.1 {
  INSERT INTO xx(xx) VALUES('integrity-check');
}

do_execsql_test 2.0 {
  CREATE VIRTUAL TABLE yy USING fts5(x, prefix=1);
  INSERT INTO yy VALUES('term');
}
do_execsql_test 2.1 {
  INSERT INTO yy(yy) VALUES('integrity-check');
}

#--------------------------------------------------------------------
#
do_execsql_test 3.0 {
  CREATE VIRTUAL TABLE zz USING fts5(z);
  INSERT INTO zz(zz, rank) VALUES('pgsz', 32);
  INSERT INTO zz VALUES('b b b b b b b b b b b b b b');
  INSERT INTO zz SELECT z FROM zz;
  INSERT INTO zz SELECT z FROM zz;
  INSERT INTO zz SELECT z FROM zz;
  INSERT INTO zz SELECT z FROM zz;
  INSERT INTO zz SELECT z FROM zz;
  INSERT INTO zz SELECT z FROM zz;
  INSERT INTO zz(zz) VALUES('optimize');
}

do_execsql_test 3.1 { INSERT INTO zz(zz) VALUES('integrity-check'); }

#--------------------------------------------------------------------
# Mess around with a docsize record. And the averages record. Then
# check that integrity-check picks it up.
#
do_execsql_test 4.0 {
  CREATE VIRTUAL TABLE aa USING fts5(zz);
  INSERT INTO aa(zz) VALUES('a b c d e');
  INSERT INTO aa(zz) VALUES('a b c d');
  INSERT INTO aa(zz) VALUES('a b c');
  INSERT INTO aa(zz) VALUES('a b');
  INSERT INTO aa(zz) VALUES('a');
  SELECT length(sz) FROM aa_docsize;
} {1 1 1 1 1}
do_execsql_test 4.1 { 
  INSERT INTO aa(aa) VALUES('integrity-check'); 
}

do_catchsql_test 4.2 { 
  BEGIN;
    UPDATE aa_docsize SET sz = X'44' WHERE rowid = 3;
    INSERT INTO aa(aa) VALUES('integrity-check'); 
} {1 {database disk image is malformed}}

do_catchsql_test 4.3 { 
  ROLLBACK;
  BEGIN;
    UPDATE aa_data SET block = X'44' WHERE rowid = 1;
    INSERT INTO aa(aa) VALUES('integrity-check'); 
} {1 {database disk image is malformed}}

do_catchsql_test 4.4 { 
  ROLLBACK;
  BEGIN;
    INSERT INTO aa_docsize VALUES(23, X'04');
    INSERT INTO aa(aa) VALUES('integrity-check'); 
} {1 {database disk image is malformed}}

do_catchsql_test 4.5 { 
  ROLLBACK;
  BEGIN;
    INSERT INTO aa_docsize VALUES(23, X'00');
    INSERT INTO aa_content VALUES(23, '');
    INSERT INTO aa(aa) VALUES('integrity-check'); 
} {1 {database disk image is malformed}}

#db eval {SELECT rowid, fts5_decode(rowid, block) aS r FROM zz_data} {puts $r}
#exit

execsql { ROLLBACK }


#-------------------------------------------------------------------------
# Test that integrity-check works on a reasonably large db with many
# different terms.

# Document generator command.
proc rnddoc {n} {
  set doc [list]
  for {set i 0} {$i<$n} {incr i} {
    lappend doc [format %.5d [expr int(rand()*10000)]]
  }
  return $doc
}
db func rnddoc rnddoc

expr srand(0)
do_execsql_test 5.0 {
  CREATE VIRTUAL TABLE gg USING fts5(a, prefix="1,2,3");
  INSERT INTO gg(gg, rank) VALUES('pgsz', 256);
  INSERT INTO gg VALUES(rnddoc(20));
  INSERT INTO gg SELECT rnddoc(20) FROM gg;
  INSERT INTO gg SELECT rnddoc(20) FROM gg;
  INSERT INTO gg SELECT rnddoc(20) FROM gg;
  INSERT INTO gg SELECT rnddoc(20) FROM gg;
  INSERT INTO gg SELECT rnddoc(20) FROM gg;
  INSERT INTO gg SELECT rnddoc(20) FROM gg;
  INSERT INTO gg SELECT rnddoc(20) FROM gg;
  INSERT INTO gg SELECT rnddoc(20) FROM gg;
  INSERT INTO gg SELECT rnddoc(20) FROM gg;
  INSERT INTO gg SELECT rnddoc(20) FROM gg;
  INSERT INTO gg SELECT rnddoc(20) FROM gg;
}

do_execsql_test 5.1 {
  INSERT INTO gg(gg) VALUES('integrity-check');
}

do_execsql_test 5.2 {
  INSERT INTO gg(gg) VALUES('optimize');
}

breakpoint
do_execsql_test 5.3 {
  INSERT INTO gg(gg) VALUES('integrity-check');
}

finish_test

