rt-thread-official/components/external/SQLite-3.8.1/test/collate8.test

#
# 2007 June 20
#
# 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 script is making sure collations pass through the
# unary + operator.
#
# $Id: collate8.test,v 1.2 2008/08/25 12:14:09 drh Exp $

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

do_test collate8-1.1 {
  execsql {
    CREATE TABLE t1(a TEXT COLLATE nocase);
    INSERT INTO t1 VALUES('aaa');
    INSERT INTO t1 VALUES('BBB');
    INSERT INTO t1 VALUES('ccc');
    INSERT INTO t1 VALUES('DDD');
    SELECT a FROM t1 ORDER BY a;
  }
} {aaa BBB ccc DDD}
do_test collate8-1.2 {
  execsql {
    SELECT rowid FROM t1 WHERE a<'ccc' ORDER BY 1
  }
} {1 2}
do_test collate8-1.3 {
  execsql {
    SELECT rowid FROM t1 WHERE a<'ccc' COLLATE binary ORDER BY 1
  }
} {1 2 4}
do_test collate8-1.4 {
  execsql {
    SELECT rowid FROM t1 WHERE +a<'ccc' ORDER BY 1
  }
} {1 2}
do_test collate8-1.5 {
  execsql {
    SELECT a FROM t1 ORDER BY +a
  }
} {aaa BBB ccc DDD}
do_test collate8-1.11 {
  execsql {
    SELECT a AS x FROM t1 ORDER BY "x";
  }
} {aaa BBB ccc DDD}
do_test collate8-1.12 {
  execsql {
    SELECT a AS x FROM t1 WHERE x<'ccc' ORDER BY 1
  }
} {aaa BBB}
do_test collate8-1.13 {
  execsql {
    SELECT a AS x FROM t1 WHERE x<'ccc' COLLATE binary ORDER BY [x]
  }
} {aaa BBB DDD}
do_test collate8-1.14 {
  execsql {
    SELECT a AS x FROM t1 WHERE +x<'ccc' ORDER BY 1
  }
} {aaa BBB}
do_test collate8-1.15 {
  execsql {
    SELECT a AS x FROM t1 ORDER BY +x
  }
} {aaa BBB ccc DDD}


# When a result-set column is aliased into a WHERE clause, make sure the
# collating sequence logic works correctly.
#
do_test collate8-2.1 {
  execsql {
    CREATE TABLE t2(a);
    INSERT INTO t2 VALUES('abc');
    INSERT INTO t2 VALUES('ABC');
    SELECT a AS x FROM t2 WHERE x='abc';
  }
} {abc}
do_test collate8-2.2 {
  execsql {
    SELECT a AS x FROM t2 WHERE x='abc' COLLATE nocase;
  }
} {abc ABC}
do_test collate8-2.3 {
  execsql {
    SELECT a AS x FROM t2 WHERE (x COLLATE nocase)='abc';
  }
} {abc ABC}
do_test collate8-2.4 {
  execsql {
    SELECT a COLLATE nocase AS x FROM t2 WHERE x='abc';
  }
} {abc ABC}
do_test collate8-2.5 {
  execsql {
    SELECT a COLLATE nocase AS x FROM t2 WHERE (x COLLATE binary)='abc';
  }
} {abc}
do_test collate8-2.6 {
  execsql {
    SELECT a COLLATE nocase AS x FROM t2 WHERE x='abc' COLLATE binary;
  }
} {abc ABC}
do_test collate8-2.7 {
  execsql {
    SELECT * FROM t2 WHERE (a COLLATE nocase)='abc' COLLATE binary;
  }
} {abc ABC}
do_test collate8-2.8 {
  execsql {
    SELECT a COLLATE nocase AS x FROM t2 WHERE 'abc'=x COLLATE binary;
  }
} {abc}

finish_test