mirror of
https://github.com/rbock/sqlpp11.git
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282 lines
14 KiB
C++
282 lines
14 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 <iostream>
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#include "MockDb.h"
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#include "Sample.h"
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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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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 Lhs, typename Rhs>
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void join_static_check(const Lhs& lhs, const Rhs& rhs)
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{
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using CheckResult = sqlpp::check_pre_join_t<Lhs, Rhs>;
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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 JoinType = decltype(sqlpp::join(lhs, rhs));
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using InnerJoinType = decltype(sqlpp::inner_join(lhs, rhs));
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using LeftOuterJoinType = decltype(sqlpp::left_outer_join(lhs, rhs));
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using RightOuterJoinType = decltype(sqlpp::right_outer_join(lhs, rhs));
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using OuterJoinType = decltype(sqlpp::outer_join(lhs, rhs));
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using CrossJoinType = decltype(sqlpp::cross_join(lhs, rhs));
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using ExpectedReturnType = sqlpp::logic::all_t<
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(Assert::value and sqlpp::is_pre_join_t<JoinType>::value and sqlpp::is_pre_join_t<InnerJoinType>::value and
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sqlpp::is_pre_join_t<LeftOuterJoinType>::value and sqlpp::is_pre_join_t<RightOuterJoinType>::value and
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sqlpp::is_pre_join_t<OuterJoinType>::value and sqlpp::is_join_t<CrossJoinType>::value) xor
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(std::is_same<JoinType, sqlpp::bad_statement>::value and
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std::is_same<InnerJoinType, sqlpp::bad_statement>::value and
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std::is_same<LeftOuterJoinType, sqlpp::bad_statement>::value and
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std::is_same<RightOuterJoinType, sqlpp::bad_statement>::value and
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std::is_same<OuterJoinType, sqlpp::bad_statement>::value and
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std::is_same<CrossJoinType, sqlpp::bad_statement>::value)>;
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print_type_on_error<JoinType>(ExpectedReturnType{});
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print_type_on_error<InnerJoinType>(ExpectedReturnType{});
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print_type_on_error<LeftOuterJoinType>(ExpectedReturnType{});
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print_type_on_error<RightOuterJoinType>(ExpectedReturnType{});
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print_type_on_error<OuterJoinType>(ExpectedReturnType{});
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print_type_on_error<CrossJoinType>(ExpectedReturnType{});
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static_assert(ExpectedReturnType::value, "Unexpected return type");
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}
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template <typename Assert, typename Lhs, typename Rhs>
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void on_static_check(const Lhs& lhs, const Rhs& rhs)
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{
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using CheckResult = sqlpp::check_join_on_t<Lhs, Rhs>;
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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 ResultType = decltype(lhs.on(rhs));
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using ExpectedReturnType = sqlpp::logic::all_t<(Assert::value and sqlpp::is_join_t<ResultType>::value) xor
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std::is_same<ResultType, sqlpp::bad_statement>::value>;
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print_type_on_error<ResultType>(ExpectedReturnType{});
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static_assert(ExpectedReturnType::value, "Unexpected return type");
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}
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void static_join()
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{
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// Prepare a few table aliases for tests
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const auto ta = t.as(sqlpp::alias::a);
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const auto tb = t.as(sqlpp::alias::b);
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const auto fa = f.as(sqlpp::alias::a);
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const auto fb = f.as(sqlpp::alias::b);
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// OK: Join two different tables
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join_static_check<sqlpp::consistent_t>(t, f);
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join_static_check<sqlpp::consistent_t>(t, fa);
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join_static_check<sqlpp::consistent_t>(ta, fb);
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// OK: Self join
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join_static_check<sqlpp::consistent_t>(ta, tb);
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join_static_check<sqlpp::consistent_t>(t, tb);
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join_static_check<sqlpp::consistent_t>(ta, t);
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// Prepare a join for tests:
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const auto j = cross_join(ta, tb);
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// OK: Add a third table
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join_static_check<sqlpp::consistent_t>(j, f);
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join_static_check<sqlpp::consistent_t>(j, t.as(sqlpp::alias::c));
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join_static_check<sqlpp::consistent_t>(j, t);
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// Try a bunch of non-tables
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join_static_check<sqlpp::assert_pre_join_rhs_table_t>(t, 7);
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join_static_check<sqlpp::assert_pre_join_rhs_table_t>(t, t.alpha);
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join_static_check<sqlpp::assert_pre_join_rhs_table_t>(t, t.beta);
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join_static_check<sqlpp::assert_pre_join_rhs_table_t>(t, t.gamma);
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join_static_check<sqlpp::assert_pre_join_rhs_table_t>(t, t.delta);
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join_static_check<sqlpp::assert_pre_join_lhs_table_t>(7, t);
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join_static_check<sqlpp::assert_pre_join_lhs_table_t>(t.alpha, t);
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join_static_check<sqlpp::assert_pre_join_lhs_table_t>(t.beta, t);
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join_static_check<sqlpp::assert_pre_join_lhs_table_t>(t.gamma, t);
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join_static_check<sqlpp::assert_pre_join_lhs_table_t>(t.delta, t);
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// Try to join with join (rhs)
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join_static_check<sqlpp::assert_pre_join_rhs_no_join_t>(t, j);
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join_static_check<sqlpp::assert_pre_join_rhs_no_join_t>(f, j);
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join_static_check<sqlpp::assert_pre_join_rhs_no_join_t>(t.as(sqlpp::alias::left), j);
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// Try to join identical table names
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join_static_check<sqlpp::assert_pre_join_unique_names_t>(t, t);
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join_static_check<sqlpp::assert_pre_join_unique_names_t>(f, f);
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join_static_check<sqlpp::assert_pre_join_unique_names_t>(t.as(f), f);
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join_static_check<sqlpp::assert_pre_join_unique_names_t>(t, f.as(t));
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join_static_check<sqlpp::assert_pre_join_unique_names_t>(ta, fa);
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join_static_check<sqlpp::assert_pre_join_unique_names_t>(j, fa);
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join_static_check<sqlpp::assert_pre_join_unique_names_t>(j, fb);
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join_static_check<sqlpp::assert_pre_join_unique_names_t>(j, ta);
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join_static_check<sqlpp::assert_pre_join_unique_names_t>(j, tb);
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// Prepare a pre_joins for tests:
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const auto t_f = join(t, f);
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const auto f_t = join(f, t);
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const auto t_t = join(ta, tb);
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const auto f_f = join(fa, fb);
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// OK join.on()
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on_static_check<sqlpp::consistent_t>(t_f, t.alpha > f.omega);
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on_static_check<sqlpp::consistent_t>(f_t, t.alpha < f.omega);
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on_static_check<sqlpp::consistent_t>(f_f, fa.omega == fb.omega);
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on_static_check<sqlpp::consistent_t>(t_t, ta.alpha == tb.alpha);
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on_static_check<sqlpp::consistent_t>(t_f, t.gamma);
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// Try join.on(non-expression)
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on_static_check<sqlpp::assert_on_is_expression_t>(t_f, true);
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on_static_check<sqlpp::assert_on_is_expression_t>(t_f, 7);
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on_static_check<sqlpp::assert_on_is_expression_t>(t_f, t);
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// Try join.on(non-boolean)
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on_static_check<sqlpp::assert_on_is_boolean_expression_t>(t_f, t.alpha);
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on_static_check<sqlpp::assert_on_is_boolean_expression_t>(t_f, t.beta);
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on_static_check<sqlpp::assert_on_is_boolean_expression_t>(t_f, f.omega);
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// Try join.on(foreign-table)
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on_static_check<sqlpp::assert_join_on_no_foreign_table_dependencies_t>(t_f, ta.alpha != 0);
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on_static_check<sqlpp::assert_join_on_no_foreign_table_dependencies_t>(t_t, t.gamma);
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on_static_check<sqlpp::assert_join_on_no_foreign_table_dependencies_t>(f_f, f.omega > fa.omega);
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}
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template <typename Assert, typename Table>
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void join_dynamic_check(const Table& table)
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{
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using CheckResult = sqlpp::check_dynamic_pre_join_t<Table>;
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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 JoinType = decltype(sqlpp::dynamic_join(table));
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using InnerJoinType = decltype(sqlpp::dynamic_inner_join(table));
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using LeftOuterJoinType = decltype(sqlpp::dynamic_left_outer_join(table));
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using RightOuterJoinType = decltype(sqlpp::dynamic_right_outer_join(table));
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using OuterJoinType = decltype(sqlpp::dynamic_outer_join(table));
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using CrossJoinType = decltype(sqlpp::dynamic_cross_join(table));
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using ExpectedReturnType = sqlpp::logic::all_t<(Assert::value and sqlpp::is_dynamic_pre_join_t<JoinType>::value and
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sqlpp::is_dynamic_pre_join_t<InnerJoinType>::value and
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sqlpp::is_dynamic_pre_join_t<LeftOuterJoinType>::value and
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sqlpp::is_dynamic_pre_join_t<RightOuterJoinType>::value and
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sqlpp::is_dynamic_pre_join_t<OuterJoinType>::value and
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sqlpp::is_dynamic_join_t<CrossJoinType>::value) xor
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(std::is_same<JoinType, sqlpp::bad_statement>::value and
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std::is_same<InnerJoinType, sqlpp::bad_statement>::value and
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std::is_same<LeftOuterJoinType, sqlpp::bad_statement>::value and
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std::is_same<RightOuterJoinType, sqlpp::bad_statement>::value and
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std::is_same<OuterJoinType, sqlpp::bad_statement>::value and
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std::is_same<CrossJoinType, sqlpp::bad_statement>::value)>;
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print_type_on_error<JoinType>(ExpectedReturnType{});
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print_type_on_error<InnerJoinType>(ExpectedReturnType{});
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print_type_on_error<LeftOuterJoinType>(ExpectedReturnType{});
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print_type_on_error<RightOuterJoinType>(ExpectedReturnType{});
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print_type_on_error<OuterJoinType>(ExpectedReturnType{});
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print_type_on_error<CrossJoinType>(ExpectedReturnType{});
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static_assert(ExpectedReturnType::value, "Unexpected return type");
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}
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template <typename Assert, typename Lhs, typename Rhs>
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void on_dynamic_check(const Lhs& lhs, const Rhs& rhs)
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{
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using CheckResult = sqlpp::check_dynamic_join_on_t<Lhs, Rhs>;
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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 ResultType = decltype(lhs.on(rhs));
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using ExpectedReturnType = sqlpp::logic::all_t<(Assert::value and sqlpp::is_dynamic_join_t<ResultType>::value) xor
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std::is_same<ResultType, sqlpp::bad_statement>::value>;
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print_type_on_error<ResultType>(ExpectedReturnType{});
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static_assert(ExpectedReturnType::value, "Unexpected return type");
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}
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void dynamic_join()
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{
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// Prepare a few table aliases for tests
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const auto ta = t.as(sqlpp::alias::a);
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const auto fa = f.as(sqlpp::alias::a);
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// OK
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join_dynamic_check<sqlpp::consistent_t>(t);
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join_dynamic_check<sqlpp::consistent_t>(f);
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join_dynamic_check<sqlpp::consistent_t>(ta);
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join_dynamic_check<sqlpp::consistent_t>(fa);
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// Try a bunch of non-tables
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join_dynamic_check<sqlpp::assert_dynamic_pre_join_table_t>(7);
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join_dynamic_check<sqlpp::assert_dynamic_pre_join_table_t>(t.alpha);
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join_dynamic_check<sqlpp::assert_dynamic_pre_join_table_t>(t.beta);
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join_dynamic_check<sqlpp::assert_dynamic_pre_join_table_t>(t.gamma);
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join_dynamic_check<sqlpp::assert_dynamic_pre_join_table_t>(t.delta);
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// Try (pre) joins
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join_dynamic_check<sqlpp::assert_dynamic_pre_join_table_t>(t.join(f));
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join_dynamic_check<sqlpp::assert_dynamic_pre_join_no_join_t>(t.cross_join(f));
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// Prepare a dynamic_pre_joins for tests:
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const auto tj = dynamic_join(t);
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const auto fj = dynamic_join(f);
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// OK dynamic_join.on()
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on_dynamic_check<sqlpp::consistent_t>(tj, t.alpha > f.omega);
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on_dynamic_check<sqlpp::consistent_t>(fj, t.alpha < f.omega);
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// Try dynamic_join.on(non-expression)
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on_dynamic_check<sqlpp::assert_on_is_expression_t>(tj, true);
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on_dynamic_check<sqlpp::assert_on_is_expression_t>(tj, 7);
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on_dynamic_check<sqlpp::assert_on_is_expression_t>(tj, t);
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// Try dynamic_join.on(non-boolean)
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on_dynamic_check<sqlpp::assert_on_is_boolean_expression_t>(tj, t.alpha);
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on_dynamic_check<sqlpp::assert_on_is_boolean_expression_t>(tj, t.beta);
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on_dynamic_check<sqlpp::assert_on_is_boolean_expression_t>(tj, f.omega);
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// OK dynamic_join.on(foreign-table)
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on_dynamic_check<sqlpp::consistent_t>(tj, ta.alpha != 0);
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on_dynamic_check<sqlpp::consistent_t>(tj, t.gamma);
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on_dynamic_check<sqlpp::consistent_t>(tj, f.omega > fa.omega);
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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_join();
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dynamic_join();
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}
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