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cc49ba1524
all_t was not to be used as a type but as a value, thus, it should be `all`. Same with any and none.
97 lines
3.8 KiB
C++
97 lines
3.8 KiB
C++
/*
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* Copyright (c) 2015-2016, Roland Bock
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "MockDb.h"
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#include "Sample.h"
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#include <iostream>
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#include <sqlpp11/sqlpp11.h>
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namespace
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{
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constexpr auto t = test::TabBar{};
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template <typename T>
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void print_type_on_error(std::true_type)
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{
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}
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template <typename T>
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void print_type_on_error(std::false_type)
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{
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T::_print_me_;
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}
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template <typename Assert, typename Expression>
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void where_static_check(const Expression& expression)
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{
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using CheckResult = sqlpp::check_where_static_t<Expression>;
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using ExpectedCheckResult = std::is_same<CheckResult, Assert>;
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print_type_on_error<CheckResult>(ExpectedCheckResult{});
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static_assert(ExpectedCheckResult::value, "Unexpected check result");
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using ReturnType = decltype(remove_from(t).where(expression));
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using ExpectedReturnType = sqlpp::logic::all<Assert::value xor std::is_same<ReturnType, Assert>::value>;
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print_type_on_error<ReturnType>(ExpectedReturnType{});
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static_assert(ExpectedReturnType::value, "Unexpected return type");
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}
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void static_where()
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{
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// OK
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where_static_check<sqlpp::consistent_t>(t.boolNn);
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where_static_check<sqlpp::consistent_t>(t.boolNn == true);
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// Try assignment as condition
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where_static_check<sqlpp::assert_where_arg_is_boolean_expression_t>(t.boolNn = true);
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// Try non-boolean expression
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where_static_check<sqlpp::assert_where_arg_is_boolean_expression_t>(t.id);
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// Try builtin bool
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where_static_check<sqlpp::assert_where_arg_is_not_cpp_bool_t>(true);
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where_static_check<sqlpp::assert_where_arg_is_not_cpp_bool_t>(17 > 3);
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// Try some other types as expressions
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where_static_check<sqlpp::assert_where_arg_is_boolean_expression_t>("true");
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where_static_check<sqlpp::assert_where_arg_is_boolean_expression_t>(17);
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where_static_check<sqlpp::assert_where_arg_is_boolean_expression_t>('c');
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where_static_check<sqlpp::assert_where_arg_is_boolean_expression_t>(nullptr);
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where_static_check<sqlpp::assert_where_arg_is_boolean_expression_t>(t.id.as(t.textN));
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// Try using aggregate functions in where
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where_static_check<sqlpp::assert_where_arg_contains_no_aggregate_functions_t>(count(t.id) > 0);
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where_static_check<sqlpp::assert_where_arg_contains_no_aggregate_functions_t>(t.boolNn and count(t.id) > 0);
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where_static_check<sqlpp::assert_where_arg_contains_no_aggregate_functions_t>(
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case_when(count(t.id) > 0).then(t.boolNn).else_(not t.boolNn));
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}
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}
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int main(int, char* [])
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{
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static_where();
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#warning: Add test with optional expressions?
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}
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