ladybird/Tests/AK/TestNonnullRefPtr.cpp
Ali Mohammad Pur 5e1499d104 Everywhere: Rename {Deprecated => Byte}String
This commit un-deprecates DeprecatedString, and repurposes it as a byte
string.
As the null state has already been removed, there are no other
particularly hairy blockers in repurposing this type as a byte string
(what it _really_ is).

This commit is auto-generated:
  $ xs=$(ack -l \bDeprecatedString\b\|deprecated_string AK Userland \
    Meta Ports Ladybird Tests Kernel)
  $ perl -pie 's/\bDeprecatedString\b/ByteString/g;
    s/deprecated_string/byte_string/g' $xs
  $ clang-format --style=file -i \
    $(git diff --name-only | grep \.cpp\|\.h)
  $ gn format $(git ls-files '*.gn' '*.gni')
2023-12-17 18:25:10 +03:30

85 lines
2 KiB
C++

/*
* Copyright (c) 2018-2023, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibTest/TestCase.h>
#include <AK/ByteString.h>
#include <AK/NonnullRefPtr.h>
#include <AK/OwnPtr.h>
struct Object : public RefCounted<Object> {
int x;
};
TEST_CASE(basics)
{
auto object = adopt_ref(*new Object);
EXPECT_EQ(object->ref_count(), 1u);
object->ref();
EXPECT_EQ(object->ref_count(), 2u);
object->unref();
EXPECT_EQ(object->ref_count(), 1u);
{
NonnullRefPtr another = object;
EXPECT_EQ(object->ref_count(), 2u);
}
EXPECT_EQ(object->ref_count(), 1u);
}
TEST_CASE(assign_reference)
{
auto object = adopt_ref(*new Object);
EXPECT_EQ(object->ref_count(), 1u);
object = *object;
EXPECT_EQ(object->ref_count(), 1u);
}
TEST_CASE(assign_owner_of_self)
{
struct Object : public RefCounted<Object> {
RefPtr<Object> parent;
};
auto parent = adopt_ref(*new Object);
auto child = adopt_ref(*new Object);
child->parent = move(parent);
child = *child->parent;
EXPECT_EQ(child->ref_count(), 1u);
}
TEST_CASE(swap_with_self)
{
auto object = adopt_ref(*new Object);
swap(object, object);
EXPECT_EQ(object->ref_count(), 1u);
}
TEST_CASE(destroy_self_owning_refcounted_object)
{
// This test is a little convoluted because SelfOwningRefCounted can't own itself
// through a NonnullRefPtr directly. We have to use an intermediate object ("Inner").
struct SelfOwningRefCounted : public RefCounted<SelfOwningRefCounted> {
SelfOwningRefCounted()
: inner(make<Inner>(*this))
{
}
struct Inner {
explicit Inner(SelfOwningRefCounted& self)
: self(self)
{
}
NonnullRefPtr<SelfOwningRefCounted> self;
};
OwnPtr<Inner> inner;
};
RefPtr object = make_ref_counted<SelfOwningRefCounted>();
auto* object_ptr = object.ptr();
object = nullptr;
object_ptr->inner = nullptr;
}