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// Copyright 2003, Google Inc.
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// All rights reserved.
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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
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (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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// Authors: Dan Egnor (egnor@google.com)
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// Ported to Windows: Vadim Berman (vadimb@google.com)
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#include <gtest/internal/gtest-linked_ptr.h>
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#include <gtest/gtest.h>
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using testing::Message;
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using testing::internal::linked_ptr;
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Message* history = NULL;
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// Class which tracks allocation/deallocation
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A(): mynum(num++) { *history << "A" << mynum << " ctor\n"; }
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virtual ~A() { *history << "A" << mynum << " dtor\n"; }
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virtual void Use() { *history << "A" << mynum << " use\n"; }
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B() { *history << "B" << mynum << " ctor\n"; }
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~B() { *history << "B" << mynum << " dtor\n"; }
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virtual void Use() { *history << "B" << mynum << " use\n"; }
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class LinkedPtrTest : public testing::Test {
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history = new Message;
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virtual ~LinkedPtrTest() {
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TEST_F(LinkedPtrTest, GeneralTest) {
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linked_ptr<A> a0, a1, a2;
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ASSERT_EQ(a0.get(), static_cast<A*>(NULL));
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ASSERT_EQ(a1.get(), static_cast<A*>(NULL));
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ASSERT_EQ(a2.get(), static_cast<A*>(NULL));
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ASSERT_TRUE(a0 == NULL);
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ASSERT_TRUE(a1 == NULL);
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ASSERT_TRUE(a2 == NULL);
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linked_ptr<A> a3(new A);
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ASSERT_TRUE(a0 == a3);
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ASSERT_TRUE(a0 != NULL);
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ASSERT_TRUE(a0.get() == a3);
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ASSERT_TRUE(a0 == a3.get());
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linked_ptr<A> a5(new A);
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ASSERT_TRUE(a5.get() != a3);
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ASSERT_TRUE(a5 != a3.get());
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linked_ptr<B> b0(new B);
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linked_ptr<A> a6(b0);
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ASSERT_TRUE(b0 == a6);
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ASSERT_TRUE(a6 == b0);
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ASSERT_TRUE(b0 != NULL);
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history->GetString().c_str()
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} // Unnamed namespace