SQLite-2.5.0-for-code-reading/test/sort.test

# 2001 September 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.
#
#***********************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this file is testing the CREATE TABLE statement.
#
# $Id: sort.test,v 1.4 2002/01/22 14:11:30 drh Exp $

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

# Create a bunch of data to sort against
#
do_test sort-1.0 {
  set fd [open data.txt w]
  puts $fd "1\tone\t0\tI\t3.141592653"
  puts $fd "2\ttwo\t1\tII\t2.15"
  puts $fd "3\tthree\t1\tIII\t4221.0"
  puts $fd "4\tfour\t2\tIV\t-0.0013442"
  puts $fd "5\tfive\t2\tV\t-11"
  puts $fd "6\tsix\t2\tVI\t0.123"
  puts $fd "7\tseven\t2\tVII\t123.0"
  puts $fd "8\teight\t3\tVIII\t-1.6"
  close $fd
  execsql {
    CREATE TABLE t1(
       n int,
       v varchar(10),
       log int,
       roman varchar(10),
       flt real
    );
    COPY t1 FROM 'data.txt'
  }
  file delete data.txt
  execsql {SELECT count(*) FROM t1}
} {8}

do_test sort-1.1 {
  execsql {SELECT n FROM t1 ORDER BY n}
} {1 2 3 4 5 6 7 8}
do_test sort-1.1.1 {
  execsql {SELECT n FROM t1 ORDER BY n ASC}
} {1 2 3 4 5 6 7 8}
do_test sort-1.1.1 {
  execsql {SELECT ALL n FROM t1 ORDER BY n ASC}
} {1 2 3 4 5 6 7 8}
do_test sort-1.2 {
  execsql {SELECT n FROM t1 ORDER BY n DESC}
} {8 7 6 5 4 3 2 1}
do_test sort-1.3a {
  execsql {SELECT v FROM t1 ORDER BY v}
} {eight five four one seven six three two}
do_test sort-1.3b {
  execsql {SELECT n FROM t1 ORDER BY v}
} {8 5 4 1 7 6 3 2}
do_test sort-1.4 {
  execsql {SELECT n FROM t1 ORDER BY v DESC}
} {2 3 6 7 1 4 5 8}
do_test sort-1.5 {
  execsql {SELECT flt FROM t1 ORDER BY flt}
} {-11 -1.6 -0.0013442 0.123 2.15 3.141592653 123.0 4221.0}
do_test sort-1.6 {
  execsql {SELECT flt FROM t1 ORDER BY flt DESC}
} {4221.0 123.0 3.141592653 2.15 0.123 -0.0013442 -1.6 -11}
do_test sort-1.7 {
  execsql {SELECT roman FROM t1 ORDER BY roman}
} {I II III IV V VI VII VIII}
do_test sort-1.8 {
  execsql {SELECT n FROM t1 ORDER BY log, flt}
} {1 2 3 5 4 6 7 8}
do_test sort-1.8.1 {
  execsql {SELECT n FROM t1 ORDER BY log asc, flt}
} {1 2 3 5 4 6 7 8}
do_test sort-1.8.2 {
  execsql {SELECT n FROM t1 ORDER BY log, flt ASC}
} {1 2 3 5 4 6 7 8}
do_test sort-1.8.3 {
  execsql {SELECT n FROM t1 ORDER BY log ASC, flt asc}
} {1 2 3 5 4 6 7 8}
do_test sort-1.9 {
  execsql {SELECT n FROM t1 ORDER BY log, flt DESC}
} {1 3 2 7 6 4 5 8}
do_test sort-1.9.1 {
  execsql {SELECT n FROM t1 ORDER BY log ASC, flt DESC}
} {1 3 2 7 6 4 5 8}
do_test sort-1.10 {
  execsql {SELECT n FROM t1 ORDER BY log DESC, flt}
} {8 5 4 6 7 2 3 1}
do_test sort-1.11 {
  execsql {SELECT n FROM t1 ORDER BY log DESC, flt DESC}
} {8 7 6 4 5 3 2 1}

# These tests are designed to reach some hard-to-reach places
# inside the string comparison routines.
#
do_test sort-2.1 {
  execsql {
    UPDATE t1 SET v='x' || -flt;
    UPDATE t1 SET v='x-2b' where v=='x-0.123';
    SELECT v FROM t1 ORDER BY v;
  }
} {x-2b x-2.15 x-3.141592653 x-123 x-4221 x0.0013442 x1.6 x11}
do_test sort-2.2 {
  execsql {
    UPDATE t1 SET v='x-2_' where v=='x0.0013442';
    SELECT v FROM t1 ORDER BY v;
  }
} {x-2_ x-2b x-2.15 x-3.141592653 x-123 x-4221 x1.6 x11}
do_test sort-2.3 {
  execsql {
    UPDATE t1 SET v='x ' || (-1.3+0.01*n);
    SELECT v FROM t1 ORDER BY v;
  }
} {{x -1.29} {x -1.28} {x -1.27} {x -1.26} {x -1.25} {x -1.24} {x -1.23} {x -1.22}}

# This is a bug fix for 2.2.4.
# Strings are normally mapped to upper-case for a caseless comparison.
# But this can cause problems for characters in between 'Z' and 'a'.
#
do_test sort-3.1 {
  execsql {
    CREATE TABLE t2(a,b);
    INSERT INTO t2 VALUES('AGLIENTU',1);
    INSERT INTO t2 VALUES('AGLIE`',2);
    INSERT INTO t2 VALUES('AGNA',3);
    SELECT a, b FROM t2 ORDER BY a;
  }
} {AGLIENTU 1 AGLIE` 2 AGNA 3}
do_test sort-3.2 {
  execsql {
    SELECT a, b FROM t2 ORDER BY a DESC;
  }
} {AGNA 3 AGLIE` 2 AGLIENTU 1}
do_test sort-3.3 {
  execsql {
    DELETE FROM t2;
    INSERT INTO t2 VALUES('aglientu',1);
    INSERT INTO t2 VALUES('aglie`',2);
    INSERT INTO t2 VALUES('agna',3);
    SELECT a, b FROM t2 ORDER BY a;
  }
} {aglie` 2 aglientu 1 agna 3}
do_test sort-3.4 {
  execsql {
    SELECT a, b FROM t2 ORDER BY a DESC;
  }
} {agna 3 aglientu 1 aglie` 2}


finish_test