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3de5439579
It always bothered me that we're using the overloaded "dereference" term for this. Let's call it "unreference" instead. :^)
83 lines
2.5 KiB
C++
83 lines
2.5 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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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
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. 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"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <AK/TestSuite.h>
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#include <AK/NonnullRefPtr.h>
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#include <AK/String.h>
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struct Object : public RefCounted<Object> {
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int x;
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};
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TEST_CASE(basics)
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{
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auto object = adopt(*new Object);
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EXPECT(object.ptr() != nullptr);
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EXPECT_EQ(object->ref_count(), 1);
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object->ref();
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EXPECT_EQ(object->ref_count(), 2);
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object->unref();
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EXPECT_EQ(object->ref_count(), 1);
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{
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NonnullRefPtr another = object;
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EXPECT_EQ(object->ref_count(), 2);
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}
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EXPECT_EQ(object->ref_count(), 1);
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}
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TEST_CASE(assign_reference)
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{
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auto object = adopt(*new Object);
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EXPECT_EQ(object->ref_count(), 1);
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object = *object;
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EXPECT_EQ(object->ref_count(), 1);
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}
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TEST_CASE(assign_owner_of_self)
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{
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struct Object : public RefCounted<Object> {
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RefPtr<Object> parent;
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};
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auto parent = adopt(*new Object);
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auto child = adopt(*new Object);
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child->parent = move(parent);
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child = *child->parent;
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EXPECT_EQ(child->ref_count(), 1);
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}
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TEST_CASE(swap_with_self)
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{
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auto object = adopt(*new Object);
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swap(object, object);
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EXPECT_EQ(object->ref_count(), 1);
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}
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TEST_MAIN(String)
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