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      1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "base/memory/ref_counted.h"
      6 #include "testing/gtest/include/gtest/gtest.h"
      7 
      8 namespace {
      9 
     10 class SelfAssign : public base::RefCounted<SelfAssign> {
     11   friend class base::RefCounted<SelfAssign>;
     12 
     13   ~SelfAssign() {}
     14 };
     15 
     16 class CheckDerivedMemberAccess : public scoped_refptr<SelfAssign> {
     17  public:
     18   CheckDerivedMemberAccess() {
     19     // This shouldn't compile if we don't have access to the member variable.
     20     SelfAssign** pptr = &ptr_;
     21     EXPECT_EQ(*pptr, ptr_);
     22   }
     23 };
     24 
     25 }  // end namespace
     26 
     27 TEST(RefCountedUnitTest, TestSelfAssignment) {
     28   SelfAssign* p = new SelfAssign;
     29   scoped_refptr<SelfAssign> var(p);
     30   var = var;
     31   EXPECT_EQ(var.get(), p);
     32 }
     33 
     34 TEST(RefCountedUnitTest, ScopedRefPtrMemberAccess) {
     35   CheckDerivedMemberAccess check;
     36 }
     37