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Added more tests

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rbock 2016-04-08 21:09:36 +02:00
parent 9d6ad6511f
commit 7bf7388907
5 changed files with 250 additions and 17 deletions
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64
include/sqlpp11/having.h
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@ -56,10 +56,11 @@ namespace sqlpp
};
SQLPP_PORTABLE_STATIC_ASSERT(
assert_no_unknown_tables_in_having_t,
assert_having_no_unknown_tables_t,
"at least one having-expression requires a table which is otherwise not known in the statement");
SQLPP_PORTABLE_STATIC_ASSERT(assert_no_non_aggregates_t, "having expression not built out of aggregate expressions");
SQLPP_PORTABLE_STATIC_ASSERT(assert_having_no_non_aggregates_t,
"having expression not built out of aggregate expressions");
// HAVING
template <typename Database, typename Expression>
@ -143,16 +144,44 @@ namespace sqlpp
using _table_check = typename std::conditional<Policies::template _no_unknown_tables<having_t>::value,
consistent_t,
assert_no_unknown_tables_in_having_t>::type;
assert_having_no_unknown_tables_t>::type;
using _aggregate_check = typename std::conditional<Policies::template _no_non_aggregates<Expression>::value,
consistent_t,
assert_no_non_aggregates_t>::type;
assert_having_no_non_aggregates_t>::type;
using _consistency_check = detail::get_first_if<is_inconsistent_t, consistent_t, _table_check, _aggregate_check>;
};
};
SQLPP_PORTABLE_STATIC_ASSERT(assert_having_not_cpp_bool_t,
"having() argument has to be an sqlpp boolean expression. Please use "
"sqlpp::value(bool_expresson) if you really want to use a bool value here");
SQLPP_PORTABLE_STATIC_ASSERT(assert_having_boolean_expression_t,
"having() argument has to be an sqlpp boolean expression.");
SQLPP_PORTABLE_STATIC_ASSERT(assert_having_dynamic_statement_dynamic_t,
"dynamic_having() must not be called in a static statement");
template <typename Expression>
struct check_having
{
using type =
static_combined_check_t<static_check_t<is_not_cpp_bool_t<Expression>::value, assert_having_not_cpp_bool_t>,
static_check_t<is_expression_t<Expression>::value, assert_having_boolean_expression_t>,
static_check_t<is_boolean_t<Expression>::value, assert_having_boolean_expression_t>>;
};
template <typename Expression>
using check_having_t = typename check_having<Expression>::type;
template <typename Expression>
using check_having_static_t = check_having_t<Expression>;
template <typename Database, typename Expression>
using check_having_dynamic_t = static_combined_check_t<
static_check_t<not std::is_same<Database, void>::value, assert_having_dynamic_statement_dynamic_t>,
check_having_t<Expression>>;
// NO HAVING YET
struct no_having_t
{
@ -220,24 +249,27 @@ namespace sqlpp
using _consistency_check = consistent_t;
template <typename Expression>
auto having(Expression expression) const -> _new_statement_t<_check<Expression>, having_t<void, Expression>>
auto having(Expression expression) const
-> _new_statement_t<check_having_static_t<Expression>, having_t<void, Expression>>
{
static_assert(_check<Expression>::value, "at least one argument is not an expression in having()");
using Check = check_having_static_t<Expression>;
Check{}._();
return _having_impl<void>(_check<Expression>{}, expression);
return _having_impl<void>(Check{}, expression);
}
template <typename Expression>
auto dynamic_having(Expression expression) const
-> _new_statement_t<_check<Expression>, having_t<_database_t, Expression>>
-> _new_statement_t<check_having_dynamic_t<_database_t, Expression>, having_t<_database_t, Expression>>
{
static_assert(_check<Expression>::value, "at least one argument is not an expression in having()");
static_assert(not std::is_same<_database_t, void>::value,
"dynamic_having must not be called in a static statement");
return _having_impl<_database_t>(_check<Expression>{}, expression);
using Check = check_having_dynamic_t<_database_t, Expression>;
Check{}._();
return _having_impl<_database_t>(Check{}, expression);
}
auto dynamic_having() const -> _new_statement_t<_check<boolean_operand>, having_t<_database_t, boolean_operand>>
auto dynamic_having() const -> _new_statement_t<check_where_dynamic_t<_database_t, boolean_operand>,
having_t<_database_t, boolean_operand>>
{
return dynamic_having(::sqlpp::value(true));
}
@ -273,6 +305,12 @@ namespace sqlpp
return context;
}
};
template <typename T>
auto having(T&& t) -> decltype(statement_t<void, no_having_t>().having(std::forward<T>(t)))
{
return statement_t<void, no_having_t>().having(std::forward<T>(t));
}
}
#endif

6
include/sqlpp11/where.h
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@ -392,10 +392,10 @@ namespace sqlpp
}
};
template <typename... T>
auto where(T&&... t) -> decltype(statement_t<void, no_where_t<false>>().where(std::forward<T>(t)...))
template <typename T>
auto where(T&& t) -> decltype(statement_t<void, no_where_t<false>>().where(std::forward<T>(t)))
{
return statement_t<void, no_where_t<false>>().where(std::forward<T>(t)...);
return statement_t<void, no_where_t<false>>().where(std::forward<T>(t));
}
}

1
test_static_asserts/CMakeLists.txt
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@ -33,6 +33,7 @@ test_compile(case)
test_compile(from)
test_compile(join)
test_compile(where)
test_compile(having)
test_compile(insert)
test_compile(date)
test_compile(date_time)

194
test_static_asserts/having.cpp Normal file
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@ -0,0 +1,194 @@
/*
* 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 <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>
auto print_type_on_error(std::true_type) -> void
{
}
template <typename T>
auto print_type_on_error(std::false_type) -> void
{
T::_print_me_;
}
template <typename Assert, typename Expression>
auto having_static_check(const Expression& expression) -> void
{
using CheckResult = sqlpp::check_having_static_t<Expression>;
using ExpectedCheckResult = std::is_same<CheckResult, Assert>;
print_type_on_error<CheckResult>(ExpectedCheckResult{});
static_assert(ExpectedCheckResult::value, "Unexpected check result");
using ReturnType = decltype(select(all_of(t)).from(t).unconditionally().group_by(t.alpha).having(expression));
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 Expression>
auto having_dynamic_check(const Expression& expression) -> void
{
static auto db = MockDb{};
using CheckResult = sqlpp::check_having_dynamic_t<decltype(db), Expression>;
using ExpectedCheckResult = std::is_same<CheckResult, Assert>;
print_type_on_error<CheckResult>(ExpectedCheckResult{});
static_assert(ExpectedCheckResult::value, "Unexpected check result");
using ReturnType =
decltype(dynamic_select(db, all_of(t)).from(t).unconditionally().group_by(t.alpha).dynamic_having(expression));
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");
}
auto static_having() -> void
{
// OK
having_static_check<sqlpp::consistent_t>(t.gamma);
having_static_check<sqlpp::consistent_t>(t.gamma == true);
// OK using aggregate functions in having
having_static_check<sqlpp::consistent_t>(count(t.alpha) > 0);
having_static_check<sqlpp::consistent_t>(t.gamma and count(t.alpha) > 0);
having_static_check<sqlpp::consistent_t>(case_when(count(t.alpha) > 0).then(t.gamma).else_(not t.gamma));
// Try assignment as condition
having_static_check<sqlpp::assert_having_boolean_expression_t>(t.gamma = true);
// Try non-boolean expression
having_static_check<sqlpp::assert_having_boolean_expression_t>(t.alpha);
// Try builtin bool
having_static_check<sqlpp::assert_having_not_cpp_bool_t>(true);
having_static_check<sqlpp::assert_having_not_cpp_bool_t>(17 > 3);
// Try some other types as expressions
having_static_check<sqlpp::assert_having_boolean_expression_t>("true");
having_static_check<sqlpp::assert_having_boolean_expression_t>(17);
having_static_check<sqlpp::assert_having_boolean_expression_t>('c');
having_static_check<sqlpp::assert_having_boolean_expression_t>(nullptr);
having_static_check<sqlpp::assert_having_boolean_expression_t>(t.alpha.as(t.beta));
}
auto dynamic_having() -> void
{
// OK
having_dynamic_check<sqlpp::consistent_t>(t.gamma);
having_dynamic_check<sqlpp::consistent_t>(t.gamma == true);
// OK using aggregate functions in having
having_dynamic_check<sqlpp::consistent_t>(count(t.alpha) > 0);
having_dynamic_check<sqlpp::consistent_t>(t.gamma and count(t.alpha) > 0);
having_dynamic_check<sqlpp::consistent_t>(case_when(count(t.alpha) > 0).then(t.gamma).else_(not t.gamma));
// Try assignment as condition
having_dynamic_check<sqlpp::assert_having_boolean_expression_t>(t.gamma = true);
// Try non-boolean expression
having_dynamic_check<sqlpp::assert_having_boolean_expression_t>(t.alpha);
// Try builtin bool
having_dynamic_check<sqlpp::assert_having_not_cpp_bool_t>(true);
having_dynamic_check<sqlpp::assert_having_not_cpp_bool_t>(17 > 3);
// Try some other types as expressions
having_dynamic_check<sqlpp::assert_having_boolean_expression_t>("true");
having_dynamic_check<sqlpp::assert_having_boolean_expression_t>(17);
having_dynamic_check<sqlpp::assert_having_boolean_expression_t>('c');
having_dynamic_check<sqlpp::assert_having_boolean_expression_t>(nullptr);
having_dynamic_check<sqlpp::assert_having_boolean_expression_t>(t.alpha.as(t.beta));
// Try dynamic_having on a non-dynamic select
using CheckResult = sqlpp::check_having_dynamic_t<void, sqlpp::boolean_operand>;
using ExpectedCheckResult = std::is_same<CheckResult, sqlpp::assert_having_dynamic_statement_dynamic_t>;
print_type_on_error<CheckResult>(ExpectedCheckResult{});
static_assert(ExpectedCheckResult::value, "Unexpected check result");
using ReturnType = decltype(select(all_of(t)).from(t).dynamic_having());
using ExpectedReturnType = std::is_same<ReturnType, sqlpp::bad_statement>;
print_type_on_error<ReturnType>(ExpectedReturnType{});
static_assert(ExpectedReturnType::value, "Unexpected return type");
}
template <typename Assert, typename Statement, typename HavingCondition>
auto static_consistency_check(const Statement statement, const HavingCondition condtion) -> void
{
using CheckResult = sqlpp::consistency_check_t<decltype(statement.having(condtion))>;
using ExpectedCheckResult = std::is_same<CheckResult, Assert>;
print_type_on_error<CheckResult>(ExpectedCheckResult{});
static_assert(ExpectedCheckResult::value, "Unexpected check result");
}
auto consistency_check() -> void
{
const auto select_without_group_by = select(all_of(t)).from(t).unconditionally();
// OK
static_consistency_check<sqlpp::consistent_t>(select_without_group_by, avg(t.alpha) > 17);
// Try non aggregate
static_consistency_check<sqlpp::assert_having_no_non_aggregates_t>(select_without_group_by, t.alpha > 17);
static_consistency_check<sqlpp::assert_having_no_non_aggregates_t>(select_without_group_by,
count(t.alpha) > 3 and t.alpha > 17);
// Try foreign table
static_consistency_check<sqlpp::assert_having_no_unknown_tables_t>(select_without_group_by, f.omega > 17);
const auto select_with_group_by = select(t.alpha).from(t).unconditionally().group_by(t.alpha);
// OK
static_consistency_check<sqlpp::consistent_t>(select_with_group_by, avg(t.alpha) > 17);
static_consistency_check<sqlpp::consistent_t>(select_with_group_by, t.alpha > 17);
static_consistency_check<sqlpp::consistent_t>(select_with_group_by, count(t.alpha) > 3 and t.alpha > 17);
// Try non aggregate
static_consistency_check<sqlpp::assert_having_no_non_aggregates_t>(select_with_group_by, t.beta > "17");
static_consistency_check<sqlpp::assert_having_no_non_aggregates_t>(select_with_group_by,
count(t.beta) > 3 and t.beta > "17");
// Try foreign table
static_consistency_check<sqlpp::assert_having_no_unknown_tables_t>(select_with_group_by, f.omega > 17);
}
}
int main(int, char* [])
{
static_having();
dynamic_having();
consistency_check();
}

2
test_static_asserts/where.cpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2015-2015, Roland Bock
* Copyright (c) 2015-2016, Roland Bock
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,