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sqlpp11/tests/core/serialize/clause/select.cpp

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/*
* Copyright (c) 2024, Roland Bock
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "Sample.h"
#include "../compare.h"
#include <sqlpp11/sqlpp11.h>
int main(int, char* [])
{
const auto val = sqlpp::value(17);
const auto expr = sqlpp::value(17) + 4;
const auto foo = test::TabFoo{};
// Empty.
SQLPP_COMPARE(sqlpp::select(), "SELECT ");
// SELECT a value.
SQLPP_COMPARE(sqlpp::select(expr.as(foo.id)), "SELECT (17 + 4) AS id");
// SELECT FROM.
SQLPP_COMPARE(select(foo.id).from(foo).unconditionally(), "SELECT tab_foo.id FROM tab_foo");
SQLPP_COMPARE(select(foo.id, foo.textNnD).from(foo).unconditionally(), "SELECT tab_foo.id, tab_foo.text_nn_d FROM tab_foo");
SQLPP_COMPARE(sqlpp::select().columns(foo.id).from(foo).unconditionally(), "SELECT tab_foo.id FROM tab_foo");
SQLPP_COMPARE(sqlpp::select().flags(sqlpp::all).columns(foo.id).from(foo).unconditionally(), "SELECT ALL tab_foo.id FROM tab_foo");
// SELECT FROM WHERE.
SQLPP_COMPARE(select(foo.id).from(foo).where(true), "SELECT tab_foo.id FROM tab_foo WHERE 1");
SQLPP_COMPARE(select(foo.id).from(foo).where(foo.intN > 17), "SELECT tab_foo.id FROM tab_foo WHERE tab_foo.int_n > 17");
SQLPP_COMPARE(select(foo.id).from(foo).where(dynamic(false,foo.intN > 17)), "SELECT tab_foo.id FROM tab_foo");
// SELECT FROM WHERE GROUP BY HAVING.
SQLPP_COMPARE(select(count(foo.id)).from(foo).where(true).group_by(foo.intN).having(max(foo.id) < 100), "SELECT COUNT(tab_foo.id) FROM tab_foo WHERE 1 GROUP BY tab_foo.int_n HAVING MAX(tab_foo.id) < 100");
// SELECT FROM WHERE GROUP BY HAVING ORDER BY LIMIT OFFSET
SQLPP_COMPARE(select(count(foo.id)).from(foo).where(true).group_by(foo.intN).having(max(foo.id) < 100).order_by(foo.intN.asc()).limit(10).offset(3), "SELECT COUNT(tab_foo.id) FROM tab_foo WHERE 1 GROUP BY tab_foo.int_n HAVING MAX(tab_foo.id) < 100 ORDER BY tab_foo.int_n ASC LIMIT 10 OFFSET 3");
#warning: If there is group by, does it make sense to order by non-aggregates? Need to add checks for that.
#warning: need to add type tests, including executability
return 0;
}