mirror of
https://github.com/rbock/sqlpp11.git
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193 lines
8.6 KiB
C++
193 lines
8.6 KiB
C++
/*
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* Copyright (c) 2016-2016, 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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constexpr auto f = test::TabFoo{};
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template <typename T>
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auto print_type_on_error(std::true_type) -> void
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{
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}
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template <typename T>
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auto print_type_on_error(std::false_type) -> void
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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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auto having_static_check(const Expression& expression) -> void
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{
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using CheckResult = sqlpp::check_having_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(select(all_of(t)).from(t).unconditionally().group_by(t.alpha).having(expression));
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using ExpectedReturnType = sqlpp::logic::all_t<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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template <typename Assert, typename Expression>
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auto having_dynamic_check(const Expression& expression) -> void
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{
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static auto db = MockDb{};
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using CheckResult = sqlpp::check_having_dynamic_t<decltype(db), 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 =
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decltype(dynamic_select(db, all_of(t)).from(t).unconditionally().group_by(t.alpha).dynamic_having(expression));
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using ExpectedReturnType = sqlpp::logic::all_t<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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auto static_having() -> void
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{
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// OK
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having_static_check<sqlpp::consistent_t>(t.gamma);
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having_static_check<sqlpp::consistent_t>(t.gamma == true);
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// OK using aggregate functions in having
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having_static_check<sqlpp::consistent_t>(count(t.alpha) > 0);
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having_static_check<sqlpp::consistent_t>(t.gamma and count(t.alpha) > 0);
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having_static_check<sqlpp::consistent_t>(case_when(count(t.alpha) > 0).then(t.gamma).else_(not t.gamma));
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// Try assignment as condition
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having_static_check<sqlpp::assert_having_boolean_expression_t>(t.gamma = true);
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// Try non-boolean expression
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having_static_check<sqlpp::assert_having_boolean_expression_t>(t.alpha);
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// Try builtin bool
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having_static_check<sqlpp::assert_having_not_cpp_bool_t>(true);
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having_static_check<sqlpp::assert_having_not_cpp_bool_t>(17 > 3);
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// Try some other types as expressions
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having_static_check<sqlpp::assert_having_boolean_expression_t>("true");
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having_static_check<sqlpp::assert_having_boolean_expression_t>(17);
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having_static_check<sqlpp::assert_having_boolean_expression_t>('c');
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having_static_check<sqlpp::assert_having_boolean_expression_t>(nullptr);
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having_static_check<sqlpp::assert_having_boolean_expression_t>(t.alpha.as(t.beta));
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}
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auto dynamic_having() -> void
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{
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// OK
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having_dynamic_check<sqlpp::consistent_t>(t.gamma);
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having_dynamic_check<sqlpp::consistent_t>(t.gamma == true);
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// OK using aggregate functions in having
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having_dynamic_check<sqlpp::consistent_t>(count(t.alpha) > 0);
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having_dynamic_check<sqlpp::consistent_t>(t.gamma and count(t.alpha) > 0);
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having_dynamic_check<sqlpp::consistent_t>(case_when(count(t.alpha) > 0).then(t.gamma).else_(not t.gamma));
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// Try assignment as condition
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having_dynamic_check<sqlpp::assert_having_boolean_expression_t>(t.gamma = true);
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// Try non-boolean expression
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having_dynamic_check<sqlpp::assert_having_boolean_expression_t>(t.alpha);
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// Try builtin bool
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having_dynamic_check<sqlpp::assert_having_not_cpp_bool_t>(true);
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having_dynamic_check<sqlpp::assert_having_not_cpp_bool_t>(17 > 3);
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// Try some other types as expressions
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having_dynamic_check<sqlpp::assert_having_boolean_expression_t>("true");
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having_dynamic_check<sqlpp::assert_having_boolean_expression_t>(17);
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having_dynamic_check<sqlpp::assert_having_boolean_expression_t>('c');
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having_dynamic_check<sqlpp::assert_having_boolean_expression_t>(nullptr);
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having_dynamic_check<sqlpp::assert_having_boolean_expression_t>(t.alpha.as(t.beta));
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// Try dynamic_having on a non-dynamic select
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using CheckResult = sqlpp::check_having_dynamic_t<void, sqlpp::boolean_operand>;
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using ExpectedCheckResult = std::is_same<CheckResult, sqlpp::assert_having_dynamic_statement_dynamic_t>;
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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(select(all_of(t)).from(t).dynamic_having());
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using ExpectedReturnType = std::is_same<ReturnType, sqlpp::assert_having_dynamic_statement_dynamic_t>;
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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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template <typename Assert, typename Statement, typename HavingCondition>
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auto static_consistency_check(const Statement statement, const HavingCondition condtion) -> void
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{
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using CheckResult = sqlpp::consistency_check_t<decltype(statement.having(condtion))>;
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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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}
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auto consistency_check() -> void
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{
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const auto select_without_group_by = select(all_of(t)).from(t).unconditionally();
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// OK
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static_consistency_check<sqlpp::consistent_t>(select_without_group_by, avg(t.alpha) > 17);
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// Try non aggregate
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static_consistency_check<sqlpp::assert_having_no_non_aggregates_t>(select_without_group_by, t.alpha > 17);
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static_consistency_check<sqlpp::assert_having_no_non_aggregates_t>(select_without_group_by,
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count(t.alpha) > 3 and t.alpha > 17);
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// Try foreign table
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static_consistency_check<sqlpp::assert_having_no_unknown_tables_t>(select_without_group_by, f.omega > 17);
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const auto select_with_group_by = select(t.alpha).from(t).unconditionally().group_by(t.alpha);
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// OK
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static_consistency_check<sqlpp::consistent_t>(select_with_group_by, avg(t.alpha) > 17);
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static_consistency_check<sqlpp::consistent_t>(select_with_group_by, t.alpha > 17);
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static_consistency_check<sqlpp::consistent_t>(select_with_group_by, count(t.alpha) > 3 and t.alpha > 17);
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// Try non aggregate
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static_consistency_check<sqlpp::assert_having_no_non_aggregates_t>(select_with_group_by, t.beta > "17");
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static_consistency_check<sqlpp::assert_having_no_non_aggregates_t>(select_with_group_by,
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count(t.beta) > 3 and t.beta > "17");
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// Try foreign table
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static_consistency_check<sqlpp::assert_having_no_unknown_tables_t>(select_with_group_by, f.omega > 17);
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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_having();
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dynamic_having();
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consistency_check();
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}
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