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121 lines
3.9 KiB
C++
121 lines
3.9 KiB
C++
/*
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* Copyright (c) 2025, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#include "utilities/debug.hpp"
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#include "utilities/deferredStatic.hpp"
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#include "utilities/globalDefinitions.hpp"
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#include <type_traits>
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#include "unittest.hpp"
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class DeferredStaticTestClass {
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public:
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static unsigned _initialized_count;
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int _value;
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bool _allow_destruction;
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DeferredStaticTestClass() : DeferredStaticTestClass(0) {}
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DeferredStaticTestClass(int value, bool allow_destruction = false)
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: _value(value), _allow_destruction(allow_destruction)
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{
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++_initialized_count;
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}
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~DeferredStaticTestClass() {
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if (!_allow_destruction) {
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ShouldNotReachHere();
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}
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}
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};
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unsigned DeferredStaticTestClass::_initialized_count = 0;
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using TC = DeferredStaticTestClass;
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DeferredStatic<TC> default_constructed;
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static_assert(std::is_same<TC*, decltype(default_constructed.get())>::value,
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"expected");
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TEST(DeferredStaticTest, default_constructed) {
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unsigned init_count = TC::_initialized_count;
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default_constructed.initialize();
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ASSERT_EQ(init_count + 1, TC::_initialized_count);
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ASSERT_EQ(0, default_constructed->_value);
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ASSERT_EQ(0, default_constructed.get()->_value);
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ASSERT_EQ(0, (*default_constructed)._value);
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int new_value = 5;
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*default_constructed.get() = TC(new_value, true /* allow_destruction */);
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ASSERT_EQ(init_count + 2, TC::_initialized_count);
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ASSERT_EQ(new_value, default_constructed->_value);
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ASSERT_EQ(new_value, default_constructed.get()->_value);
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ASSERT_EQ(new_value, (*default_constructed)._value);
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int new_value2 = 8;
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default_constructed->_value = new_value2;
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ASSERT_EQ(init_count + 2, TC::_initialized_count);
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ASSERT_EQ(new_value2, default_constructed->_value);
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ASSERT_EQ(new_value2, default_constructed.get()->_value);
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ASSERT_EQ(new_value2, (*default_constructed)._value);
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}
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DeferredStatic<TC> arg_constructed;
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TEST(DeferredStaticTest, arg_constructed) {
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unsigned init_count = TC::_initialized_count;
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int arg = 10;
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arg_constructed.initialize(arg);
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ASSERT_EQ(init_count + 1, TC::_initialized_count);
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ASSERT_EQ(arg, arg_constructed->_value);
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ASSERT_EQ(arg, arg_constructed.get()->_value);
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ASSERT_EQ(arg, (*arg_constructed)._value);
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}
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DeferredStatic<const TC> const_test_object;
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static_assert(std::is_same<const TC*, decltype(const_test_object.get())>::value,
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"expected");
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static_assert(std::is_same<const int*, decltype(&const_test_object->_value)>::value,
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"expected");
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TEST(DeferredStaticTest, const_test_object) {
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unsigned init_count = TC::_initialized_count;
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int arg = 20;
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const_test_object.initialize(arg);
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ASSERT_EQ(init_count + 1, TC::_initialized_count);
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ASSERT_EQ(arg, const_test_object->_value);
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ASSERT_EQ(arg, const_test_object.get()->_value);
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ASSERT_EQ(arg, (*const_test_object)._value);
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// Doesn't compile, as expected.
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// *const_test_object.get() = TC(0, true /* allow_destruction */);
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// Doesn't compile, as expected.
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// const_test_object->_value = 0;
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}
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