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sqlpp11/tests/SelectTest.cpp

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/*
* Copyright (c) 2013, 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 "TabSample.h"
#include <sqlpp11/select.h>
#include <iostream>
class DbMock
{
public:
const std::string& escape(const std::string& text) { return text; }
};
DbMock db;
int main()
{
TabSample t;
TabFoo f;
// Test a table
{
using T = decltype(t);
static_assert(not sqlpp::is_numeric_t<T>::value, "type requirement");
static_assert(not sqlpp::is_expression_t<T>::value, "type requirement");
static_assert(not sqlpp::is_named_expression_t<T>::value, "type requirement");
static_assert(not sqlpp::require_insert_t<T>::value, "type requirement");
static_assert(not sqlpp::must_not_insert_t<T>::value, "type requirement");
static_assert(not sqlpp::must_not_update_t<T>::value, "type requirement");
static_assert(not sqlpp::is_boolean_t<T>::value, "type requirement");
static_assert(not sqlpp::is_text_t<T>::value, "type requirement");
static_assert(not sqlpp::is_alias_t<T>::value, "type requirement");
static_assert(sqlpp::is_table_t<T>::value, "type requirement");
}
// Test an alias of table
{
using T = decltype(t.as(sqlpp::alias::a));
static_assert(not sqlpp::is_numeric_t<T>::value, "type requirement");
static_assert(not sqlpp::is_expression_t<T>::value, "type requirement");
static_assert(not sqlpp::is_named_expression_t<T>::value, "type requirement");
static_assert(not sqlpp::require_insert_t<T>::value, "type requirement");
static_assert(not sqlpp::must_not_insert_t<T>::value, "type requirement");
static_assert(not sqlpp::must_not_update_t<T>::value, "type requirement");
static_assert(not sqlpp::is_boolean_t<T>::value, "type requirement");
static_assert(not sqlpp::is_text_t<T>::value, "type requirement");
static_assert(sqlpp::is_alias_t<T>::value, "type requirement");
static_assert(sqlpp::is_table_t<T>::value, "type requirement");
}
// Test a colum of an alias of table
{
using T = decltype(t.as(sqlpp::alias::a).alpha);
static_assert(sqlpp::is_numeric_t<T>::value, "type requirement");
static_assert(sqlpp::is_expression_t<T>::value, "type requirement");
static_assert(sqlpp::is_named_expression_t<T>::value, "type requirement");
static_assert(not sqlpp::require_insert_t<T>::value, "type requirement");
static_assert(sqlpp::must_not_insert_t<T>::value, "type requirement");
static_assert(sqlpp::must_not_update_t<T>::value, "type requirement");
static_assert(not sqlpp::is_boolean_t<T>::value, "type requirement");
static_assert(not sqlpp::is_text_t<T>::value, "type requirement");
static_assert(not sqlpp::is_alias_t<T>::value, "type requirement");
static_assert(not sqlpp::is_table_t<T>::value, "type requirement");
}
// Test a numeric table column
{
using T = decltype(t.alpha);
static_assert(sqlpp::is_numeric_t<T>::value, "type requirement");
static_assert(sqlpp::is_expression_t<T>::value, "type requirement");
static_assert(sqlpp::is_named_expression_t<T>::value, "type requirement");
static_assert(not sqlpp::require_insert_t<T>::value, "type requirement");
static_assert(sqlpp::must_not_insert_t<T>::value, "type requirement");
static_assert(sqlpp::must_not_update_t<T>::value, "type requirement");
static_assert(not sqlpp::is_boolean_t<T>::value, "type requirement");
static_assert(not sqlpp::is_text_t<T>::value, "type requirement");
static_assert(not sqlpp::is_alias_t<T>::value, "type requirement");
static_assert(not sqlpp::is_table_t<T>::value, "type requirement");
}
// Test a an alias of a numeric table column
{
using T = decltype(t.alpha.as(sqlpp::alias::a));
static_assert(sqlpp::is_numeric_t<T>::value, "type requirement");
static_assert(not sqlpp::is_expression_t<T>::value, "type requirement");
static_assert(sqlpp::is_named_expression_t<T>::value, "type requirement");
static_assert(not sqlpp::require_insert_t<T>::value, "type requirement");
static_assert(not sqlpp::must_not_insert_t<T>::value, "type requirement");
static_assert(not sqlpp::must_not_update_t<T>::value, "type requirement");
static_assert(not sqlpp::is_boolean_t<T>::value, "type requirement");
static_assert(not sqlpp::is_text_t<T>::value, "type requirement");
static_assert(sqlpp::is_alias_t<T>::value, "type requirement");
static_assert(not sqlpp::is_table_t<T>::value, "type requirement");
}
// Test a select of a single column without a from
{
using T = decltype(select(t.alpha)); // Hint: The current rule is pretty crude (a from is required), but certainly better than nothing
static_assert(not sqlpp::is_numeric_t<T>::value, "type requirement");
static_assert(not sqlpp::is_expression_t<T>::value, "type requirement");
static_assert(not sqlpp::is_named_expression_t<T>::value, "type requirement");
static_assert(not sqlpp::require_insert_t<T>::value, "type requirement");
static_assert(not sqlpp::must_not_insert_t<T>::value, "type requirement");
static_assert(not sqlpp::must_not_update_t<T>::value, "type requirement");
static_assert(not sqlpp::is_boolean_t<T>::value, "type requirement");
static_assert(not sqlpp::is_text_t<T>::value, "type requirement");
static_assert(not sqlpp::is_alias_t<T>::value, "type requirement");
static_assert(not sqlpp::is_table_t<T>::value, "type requirement");
}
// Test a select of a single numeric table column
{
using T = decltype(select(t.alpha).from(t));
static_assert(sqlpp::is_numeric_t<T>::value, "type requirement");
static_assert(sqlpp::is_expression_t<T>::value, "type requirement");
static_assert(sqlpp::is_named_expression_t<T>::value, "type requirement");
static_assert(not sqlpp::require_insert_t<T>::value, "type requirement");
static_assert(not sqlpp::must_not_insert_t<T>::value, "type requirement");
static_assert(not sqlpp::must_not_update_t<T>::value, "type requirement");
static_assert(not sqlpp::is_boolean_t<T>::value, "type requirement");
static_assert(not sqlpp::is_text_t<T>::value, "type requirement");
static_assert(not sqlpp::is_alias_t<T>::value, "type requirement");
static_assert(not sqlpp::is_table_t<T>::value, "type requirement");
}
// Test a select of an alias of a single numeric table column
{
using T = decltype(select(t.alpha.as(sqlpp::alias::a)).from(t));
static_assert(sqlpp::is_numeric_t<T>::value, "type requirement");
static_assert(sqlpp::is_expression_t<T>::value, "type requirement");
static_assert(sqlpp::is_named_expression_t<T>::value, "type requirement");
static_assert(not sqlpp::require_insert_t<T>::value, "type requirement");
static_assert(not sqlpp::must_not_insert_t<T>::value, "type requirement");
static_assert(not sqlpp::must_not_update_t<T>::value, "type requirement");
static_assert(not sqlpp::is_boolean_t<T>::value, "type requirement");
static_assert(not sqlpp::is_text_t<T>::value, "type requirement");
static_assert(not sqlpp::is_alias_t<T>::value, "type requirement");
static_assert(not sqlpp::is_table_t<T>::value, "type requirement");
}
// Test an alias of a select of a single numeric table column
{
using T = decltype(select(t.alpha).from(t).as(sqlpp::alias::b));
static_assert(not sqlpp::is_numeric_t<T>::value, "type requirement");
static_assert(not sqlpp::is_expression_t<T>::value, "type requirement");
static_assert(not sqlpp::is_named_expression_t<T>::value, "type requirement");
static_assert(not sqlpp::require_insert_t<T>::value, "type requirement");
static_assert(not sqlpp::must_not_insert_t<T>::value, "type requirement");
static_assert(not sqlpp::must_not_update_t<T>::value, "type requirement");
static_assert(not sqlpp::is_boolean_t<T>::value, "red to not be boolean");
static_assert(not sqlpp::is_text_t<T>::value, "type requirement");
static_assert(sqlpp::is_alias_t<T>::value, "type requirement");
static_assert(sqlpp::is_table_t<T>::value, "type requirement");
}
// Test the column of an alias of a select of an alias of a single numeric table column
{
using T = decltype(select(t.alpha.as(sqlpp::alias::a)).from(t).as(sqlpp::alias::b));
static_assert(not sqlpp::is_numeric_t<T>::value, "type requirement");
static_assert(not sqlpp::is_expression_t<T>::value, "type requirement");
static_assert(not sqlpp::is_named_expression_t<T>::value, "type requirement");
static_assert(not sqlpp::require_insert_t<T>::value, "type requirement");
static_assert(not sqlpp::must_not_insert_t<T>::value, "type requirement");
static_assert(not sqlpp::must_not_update_t<T>::value, "type requirement");
static_assert(not sqlpp::is_boolean_t<T>::value, "type requirement");
static_assert(not sqlpp::is_text_t<T>::value, "type requirement");
static_assert(sqlpp::is_alias_t<T>::value, "type requirement");
static_assert(sqlpp::is_table_t<T>::value, "type requirement");
}
// Test the column of an alias of a select of a single numeric table column
{
using T = decltype(select(t.alpha).from(t).as(sqlpp::alias::b).alpha);
static_assert(sqlpp::is_numeric_t<T>::value, "type requirement");
static_assert(sqlpp::is_expression_t<T>::value, "type requirement");
static_assert(sqlpp::is_named_expression_t<T>::value, "type requirement");
static_assert(not sqlpp::require_insert_t<T>::value, "type requirement");
static_assert(not sqlpp::must_not_insert_t<T>::value, "type requirement");
static_assert(not sqlpp::must_not_update_t<T>::value, "type requirement");
static_assert(not sqlpp::is_boolean_t<T>::value, "type requirement");
static_assert(not sqlpp::is_text_t<T>::value, "type requirement");
static_assert(not sqlpp::is_alias_t<T>::value, "type requirement");
static_assert(not sqlpp::is_table_t<T>::value, "type requirement");
}
// Test an alias of a select of an alias of a single numeric table column
{
using T = decltype(select(t.alpha.as(sqlpp::alias::a)).from(t).as(sqlpp::alias::b).a);
static_assert(sqlpp::is_numeric_t<T>::value, "type requirement");
static_assert(sqlpp::is_expression_t<T>::value, "type requirement");
static_assert(sqlpp::is_named_expression_t<T>::value, "type requirement");
static_assert(not sqlpp::require_insert_t<T>::value, "type requirement");
static_assert(not sqlpp::must_not_insert_t<T>::value, "type requirement");
static_assert(not sqlpp::must_not_update_t<T>::value, "type requirement");
static_assert(not sqlpp::is_boolean_t<T>::value, "type requirement");
static_assert(not sqlpp::is_text_t<T>::value, "type requirement");
static_assert(not sqlpp::is_alias_t<T>::value, "type requirement");
static_assert(not sqlpp::is_table_t<T>::value, "type requirement");
}
// Test that select(all_of(tab)) is expanded in select
{
auto a = select(all_of(t));
auto b = select(t.alpha, t.beta, t.gamma);
auto c = select(t);
static_assert(std::is_same<decltype(a), decltype(b)>::value, "all_of(t) has to be expanded by select()");
static_assert(std::is_same<decltype(b), decltype(c)>::value, "t has to be expanded by select()");
}
// Test that select(all_of(tab)) is expanded in multi_column
{
auto a = multi_column(sqlpp::alias::a, all_of(t));
auto b = multi_column(sqlpp::alias::a, t.alpha, t.beta, t.gamma);
static_assert(std::is_same<decltype(a), decltype(b)>::value, "all_of(t) has to be expanded by multi_column");
}
// Test that select(tab) is expanded in multi_column
{
auto a = multi_column(sqlpp::alias::a, t);
auto b = multi_column(sqlpp::alias::a, t.alpha, t.beta, t.gamma);
static_assert(std::is_same<decltype(a), decltype(b)>::value, "t has to be expanded by multi_column");
}
// Test that a multicolumn is not a value
{
auto m = multi_column(sqlpp::alias::a, t.alpha, t.beta);
auto a = select(m).from(t).as(sqlpp::alias::b).a;
static_assert(not sqlpp::is_value_t<decltype(a)>::value, "a multi_column is not a value");
}
// Test that result sets with identical name/value combinations have identical types
{
auto a = select(t.alpha);
auto b = select(f.omega.as(t.alpha));
using A = typename decltype(a)::_result_row_t;
using B = typename decltype(b)::_result_row_t;
static_assert(std::is_same<
decltype(t.alpha)::_value_type::_base_value_type,
decltype(f.omega)::_value_type::_base_value_type>::value, "Two bigint columns must have identical base_value_type");
static_assert(std::is_same<A, B>::value, "select with identical columns(name/value_type) need to have identical result_types");
}
{
auto s = dynamic_select(db, t).dynamic_from().dynamic_where();
s.add_from(t);
s.add_where(t.alpha > 7);
std::cerr << "------------------------\n";
s.serialize(std::cerr, db);
std::cerr << "------------------------\n";
}
static_assert(sqlpp::is_select_flag_t<decltype(sqlpp::all)>::value, "sqlpp::all has to be a select_flag");
using T = sqlpp::detail::wrap_operand<int>::type;
static_assert(T::_is_expression, "T has to be an expression");
static_assert(std::is_same<typename T::_value_type::_is_numeric, sqlpp::detail::tag>::value, "T has to be a numeric");
static_assert(sqlpp::is_numeric_t<T>::value, "T has to be a numeric");
static_assert(sqlpp::is_numeric_t<decltype(t.alpha)>::value, "TabSample.alpha has to be a numeric");
((t.alpha + 7) + 4).asc();
static_assert(sqlpp::is_boolean_t<decltype(t.gamma == t.gamma)>::value, "Comparison expression have to be boolean");
auto x = (t.gamma == true) and (t.alpha == 7);
auto y = t.gamma and true and t.gamma;
!t.gamma;
t.beta < "kaesekuchen";
(t.beta + "hallenhalma").serialize(std::cerr, db);
concat(t.beta, "hallenhalma").serialize(std::cerr, db);
static_assert(sqlpp::must_not_insert_t<decltype(t.alpha)>::value, "alpha must not be inserted");
t.alpha.serialize(std::cerr, db);
std::cerr << "\n" << sizeof(TabSample) << std::endl;
static_assert(std::is_same<typename decltype(t.alpha)::_value_type::_is_named_expression, sqlpp::detail::tag>::value, "alpha should be a named expression");
static_assert(sqlpp::is_named_expression_t<decltype(t.alpha)>::value, "alpha should be a named expression");
static_assert(sqlpp::is_named_expression_t<decltype(t.alpha.as(sqlpp::alias::a))>::value, "an alias of alpha should be a named expression");
static_assert(sqlpp::is_alias_t<decltype(t.alpha.as(sqlpp::alias::a))>::value, "an alias of alpha should be an alias");
auto z = select(t.alpha) == 7;
auto l = t.as(sqlpp::alias::left);
auto r = select(t.gamma.as(sqlpp::alias::a)).from(t).where(t.gamma == true).as(sqlpp::alias::right);
static_assert(sqlpp::is_boolean_t<decltype(select(t.gamma).from(t))>::value, "select(bool) has to be a bool");
select(sqlpp::distinct, sqlpp::straight_join, l.alpha, l.beta, select(r.a).from(r))
.from(l, r)
.where(t.beta == "hello world" and select(t.gamma).from(t))// .as(sqlpp::alias::right))
.group_by(l.gamma, r.a)
.having(r.a != true)
.order_by(l.beta.asc())
.limit(17)
.offset(3)
.as(sqlpp::alias::a)
.serialize(std::cerr, db);
return 0;
}
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