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Merge branch 'release/0.35'

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rbock
2015-12-29 11:03:17 +01:00
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test_static_asserts/where.cpp Normal file
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/*
* Copyright (c) 2015-2015, 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 <iostream>
#include "MockDb.h"
#include "Sample.h"
#include <sqlpp11/sqlpp11.h>
namespace
{
constexpr auto t = test::TabBar{};
constexpr auto f = test::TabFoo{};
template <typename T>
void print_type_on_error(std::true_type)
{
}
template <typename T>
void print_type_on_error(std::false_type)
{
T::_print_me_;
}
template <typename Assert, typename... Expressions>
void where_static_check(const Expressions&... expressions)
{
using CheckResult = sqlpp::check_where_static_t<Expressions...>;
using ExpectedCheckResult = std::is_same<CheckResult, Assert>;
print_type_on_error<CheckResult>(ExpectedCheckResult{});
static_assert(ExpectedCheckResult::value, "Unexpected check result");
using ReturnType = decltype(remove_from(t).where(expressions...));
using ExpectedReturnType =
sqlpp::logic::all_t<Assert::value xor std::is_same<ReturnType, sqlpp::bad_statement>::value>;
print_type_on_error<ReturnType>(ExpectedReturnType{});
static_assert(ExpectedReturnType::value, "Unexpected return type");
}
template <typename Assert, typename... Expressions>
void where_dynamic_check(const Expressions&... expressions)
{
static auto db = MockDb{};
using CheckResult = sqlpp::check_where_dynamic_t<decltype(db), Expressions...>;
using ExpectedCheckResult = std::is_same<CheckResult, Assert>;
print_type_on_error<CheckResult>(ExpectedCheckResult{});
static_assert(ExpectedCheckResult::value, "Unexpected check result");
using ReturnType = decltype(dynamic_remove_from(db, t).dynamic_where(expressions...));
using ExpectedReturnType =
sqlpp::logic::all_t<Assert::value xor std::is_same<ReturnType, sqlpp::bad_statement>::value>;
print_type_on_error<ReturnType>(ExpectedReturnType{});
static_assert(ExpectedReturnType::value, "Unexpected return type");
}
void static_where()
{
// OK
where_static_check<sqlpp::consistent_t>(t.gamma);
where_static_check<sqlpp::consistent_t>(t.gamma == true);
// Try no expression
where_static_check<sqlpp::assert_where_static_count_args_t>();
// Try assignment as condition
where_static_check<sqlpp::assert_where_expressions_t>(t.gamma = true);
// Try non-boolean expression
where_static_check<sqlpp::assert_where_boolean_t>(t.alpha);
// Try some other types as expressions
where_static_check<sqlpp::assert_where_expressions_t>("true");
where_static_check<sqlpp::assert_where_expressions_t>(17);
where_static_check<sqlpp::assert_where_expressions_t>('c');
where_static_check<sqlpp::assert_where_expressions_t>(nullptr);
where_static_check<sqlpp::assert_where_expressions_t>(t.alpha.as(t.beta));
// Try using aggregate functions in where
where_static_check<sqlpp::assert_where_no_aggregate_functions_t>(count(t.alpha) > 0);
where_static_check<sqlpp::assert_where_no_aggregate_functions_t>(t.gamma and count(t.alpha) > 0);
where_static_check<sqlpp::assert_where_no_aggregate_functions_t>(
case_when(count(t.alpha) > 0).then(t.gamma).else_(not t.gamma));
}
void dynamic_where()
{
// OK
where_dynamic_check<sqlpp::consistent_t>();
where_dynamic_check<sqlpp::consistent_t>(t.gamma);
where_dynamic_check<sqlpp::consistent_t>(t.gamma == true);
// Try assignment as condition
where_dynamic_check<sqlpp::assert_where_expressions_t>(t.gamma = true);
// Try non-boolean expression
where_dynamic_check<sqlpp::assert_where_boolean_t>(t.alpha);
// Try some other types as expressions
where_dynamic_check<sqlpp::assert_where_expressions_t>("true");
where_dynamic_check<sqlpp::assert_where_expressions_t>(17);
where_dynamic_check<sqlpp::assert_where_expressions_t>('c');
where_dynamic_check<sqlpp::assert_where_expressions_t>(nullptr);
where_dynamic_check<sqlpp::assert_where_expressions_t>(t.alpha.as(t.beta));
// Try using aggregate functions in where
where_dynamic_check<sqlpp::assert_where_no_aggregate_functions_t>(count(t.alpha) > 0);
where_dynamic_check<sqlpp::assert_where_no_aggregate_functions_t>(t.gamma and count(t.alpha) > 0);
where_dynamic_check<sqlpp::assert_where_no_aggregate_functions_t>(
case_when(count(t.alpha) > 0).then(t.gamma).else_(not t.gamma));
// Try dynamic_where on a non-dynamic remove
using CheckResult = sqlpp::check_where_dynamic_t<void>;
using ExpectedCheckResult = std::is_same<CheckResult, sqlpp::assert_where_dynamic_statement_dynamic_t>;
print_type_on_error<CheckResult>(ExpectedCheckResult{});
static_assert(ExpectedCheckResult::value, "Unexpected check result");
using ReturnType = decltype(remove_from(t).dynamic_where());
using ExpectedReturnType = std::is_same<ReturnType, sqlpp::bad_statement>;
print_type_on_error<ReturnType>(ExpectedReturnType{});
static_assert(ExpectedReturnType::value, "Unexpected return type");
}
}
int main(int, char* [])
{
static_where();
dynamic_where();
}