LUMIERA.clone/tests/library/null-value-test.cpp
2025-06-07 23:59:57 +02:00

88 lines
2.2 KiB
C++
Raw Permalink Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

/*
NullValue(Test) - verify the singleton holder for NIL or default values
Copyright (C)
2010, Hermann Vosseler <Ichthyostega@web.de>
  **Lumiera** is free software; you can redistribute it and/or modify it
  under the terms of the GNU General Public License as published by the
  Free Software Foundation; either version 2 of the License, or (at your
  option) any later version. See the file COPYING for further details.
* *****************************************************************/
/** @file null-value-test.cpp
** unit test \ref NullValue_test
*/
#include "lib/test/run.hpp"
#include "lib/null-value.hpp"
#include "lib/util.hpp"
namespace lib {
namespace test{
using util::isSameObject;
namespace { // test data and helpers...
/** Test dummy to track ctor call */
struct DummyType
{
static bool created;
uint id_;
DummyType()
: id_(1 + rani(100))
{
created = true;
}
};
bool DummyType::created = false;
}
/***********************************************************************************//**
* @test Access "NIL values" just by type, verify these are actually singletons
* and are indeed created on demand.
*
* @see null-value.hpp
* @see lib::advice::Request usage example
*/
class NullValue_test : public Test
{
virtual void
run (Arg)
{
seedRand();
CHECK (long() == NullValue<long>::get());
CHECK (short() == NullValue<short>::get());
CHECK (isSameObject(NullValue<short>::get(), NullValue<short>::get()));
CHECK (!DummyType::created);
DummyType copy (NullValue<DummyType>::get());
CHECK ( DummyType::created);
CHECK ( copy.id_ == NullValue<DummyType>::get().id_);
CHECK (!isSameObject(NullValue<DummyType>::get(), copy));
CHECK ( isSameObject(NullValue<DummyType>::get(), NullValue<DummyType>::get()));
}
};
/** Register this test class... */
LAUNCHER (NullValue_test, "unit common");
}} // namespace lib::test