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sqlpp11/test_static_asserts/update_list.cpp

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/*
* Copyright (c) 2016-2016, 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 "MockDb.h"
#include "Sample.h"
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#include <iostream>
#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 update_set_static_check(const Expressions&... expressions)
{
using CheckResult = sqlpp::check_update_static_set_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(update(t).set(expressions...));
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using ExpectedReturnType = sqlpp::logic::all_t<Assert::value xor std::is_same<ReturnType, Assert>::value>;
print_type_on_error<ReturnType>(ExpectedReturnType{});
static_assert(ExpectedReturnType::value, "Unexpected return type");
}
template <typename Assert, typename... Expressions>
void update_set_dynamic_check(const Expressions&... expressions)
{
static auto db = MockDb{};
using CheckResult = sqlpp::check_update_dynamic_set_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_update(db, t).dynamic_set(expressions...));
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using ExpectedReturnType = sqlpp::logic::all_t<Assert::value xor std::is_same<ReturnType, Assert>::value>;
print_type_on_error<ReturnType>(ExpectedReturnType{});
static_assert(ExpectedReturnType::value, "Unexpected return type");
}
void static_update_set()
{
// OK
update_set_static_check<sqlpp::consistent_t>(t.gamma = true);
update_set_static_check<sqlpp::consistent_t>(t.gamma = true, t.beta = "");
// Try to update nothing
update_set_static_check<sqlpp::assert_update_set_count_args_t>();
// Try condition as assignment
update_set_static_check<sqlpp::assert_update_set_assignments_t>(t.gamma == true);
// Try duplicate columns
update_set_static_check<sqlpp::assert_update_set_no_duplicates_t>(t.gamma = true, t.gamma = false);
update_set_static_check<sqlpp::assert_update_set_no_duplicates_t>(t.gamma = true, t.beta = "", t.gamma = false);
// Try to update prohibited columns
update_set_static_check<sqlpp::assert_update_set_allowed_t>(t.alpha = 42);
// Try to update multiple tables at once
update_set_static_check<sqlpp::assert_update_set_single_table_t>(t.gamma = true, f.omega = 7);
}
void dynamic_update_set()
{
// OK
update_set_dynamic_check<sqlpp::consistent_t>(t.gamma = true);
update_set_dynamic_check<sqlpp::consistent_t>(t.gamma = true, t.beta = "");
// Try to update nothing
update_set_dynamic_check<sqlpp::consistent_t>();
// Try condition as assignment
update_set_dynamic_check<sqlpp::assert_update_set_assignments_t>(t.gamma == true);
// Try duplicate columns
update_set_dynamic_check<sqlpp::assert_update_set_no_duplicates_t>(t.gamma = true, t.gamma = false);
update_set_dynamic_check<sqlpp::assert_update_set_no_duplicates_t>(t.gamma = true, t.beta = "", t.gamma = false);
// Try to update prohibited columns
update_set_dynamic_check<sqlpp::assert_update_set_allowed_t>(t.alpha = 42);
// Try to update multiple tables at once
update_set_dynamic_check<sqlpp::assert_update_set_single_table_t>(t.gamma = true, f.omega = 7);
// Try dynamic_set on a non-dynamic update
using CheckResult = sqlpp::check_update_dynamic_set_t<void, sqlpp::boolean_operand>;
using ExpectedCheckResult = std::is_same<CheckResult, sqlpp::assert_update_dynamic_set_statement_dynamic_t>;
print_type_on_error<CheckResult>(ExpectedCheckResult{});
static_assert(ExpectedCheckResult::value, "Unexpected check result");
using ReturnType = decltype(update(t).dynamic_set());
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using ExpectedReturnType = std::is_same<ReturnType, sqlpp::assert_update_dynamic_set_statement_dynamic_t>;
print_type_on_error<ReturnType>(ExpectedReturnType{});
static_assert(ExpectedReturnType::value, "Unexpected return type");
}
}
int main(int, char* [])
{
static_update_set();
dynamic_update_set();
}