text: /*
   * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are met:
   *
   * 1. Redistributions of source code must retain the above copyright notice, this
   *    list of conditions and the following disclaimer.
   *
   * 2. 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 <AK/TestSuite.h>
  
  #include <AK/NonnullRefPtr.h>
  #include <AK/String.h>
  
  struct Object : public RefCounted<Object> {
      int x;
  };
  
  TEST_CASE(basics)
  {
      RefPtr<Object> object = adopt(*new Object);
      EXPECT(object.ptr() != nullptr);
      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)
  {
      RefPtr<Object> object = adopt(*new Object);
      EXPECT_EQ(object->ref_count(), 1u);
      object = *object;
      EXPECT_EQ(object->ref_count(), 1u);
  }
  
  TEST_CASE(assign_ptr)
  {
      RefPtr<Object> object = adopt(*new Object);
      EXPECT_EQ(object->ref_count(), 1u);
      object = object.ptr();
      EXPECT_EQ(object->ref_count(), 1u);
  }
  
  TEST_CASE(assign_moved_self)
  {
      RefPtr<Object> object = adopt(*new Object);
      EXPECT_EQ(object->ref_count(), 1u);
      object = move(object);
      EXPECT_EQ(object->ref_count(), 1u);
  }
  
  TEST_CASE(assign_copy_self)
  {
      RefPtr<Object> object = adopt(*new Object);
      EXPECT_EQ(object->ref_count(), 1u);
  
  #ifdef __clang__
  #    pragma clang diagnostic push
  #    pragma clang diagnostic ignored "-Wself-assign-overloaded"
  #endif
      object = object;
  #ifdef __clang__
  #    pragma clang diagnostic pop
  #endif
  
      EXPECT_EQ(object->ref_count(), 1u);
  }
  
  TEST_MAIN(RefPtr)
  