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+//-----------------------------------------------------------------------------
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+// Copyright (c) 2014 GarageGames, LLC
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+//
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+// Permission is hereby granted, free of charge, to any person obtaining a copy
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+// of this software and associated documentation files (the "Software"), to
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+// deal in the Software without restriction, including without limitation the
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+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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+// sell copies of the Software, and to permit persons to whom the Software is
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+// furnished to do so, subject to the following conditions:
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+//
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+// The above copyright notice and this permission notice shall be included in
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+// all copies or substantial portions of the Software.
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+//
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+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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+// IN THE SOFTWARE.
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+//-----------------------------------------------------------------------------
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+
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+#ifdef TORQUE_TESTS_ENABLED
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+#include "testing/unitTesting.h"
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+#include "platform/threads/threadSafeRefCount.h"
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+#include "platform/threads/thread.h"
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+#include "core/util/tVector.h"
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+#include "console/console.h"
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+
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+TEST(ThreadSafeRefCount, Serial)
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+{
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+ struct TestObject : public ThreadSafeRefCount<TestObject>
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+ {
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+ bool &flag;
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+ TestObject(bool &f) : flag(f)
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+ {
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+ flag = false;
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+ }
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+ ~TestObject()
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+ {
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+ flag = true;
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+ }
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+ };
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+ typedef ThreadSafeRef<TestObject> TestObjectRef;
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+
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+ bool deleted = false;
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+ TestObjectRef ref1 = new TestObject(deleted);
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+ ASSERT_FALSE(deleted);
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+ EXPECT_FALSE(ref1->isShared());
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+ EXPECT_TRUE(ref1 != NULL);
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+
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+ TestObjectRef ref2 = ref1;
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+ EXPECT_TRUE(ref1->isShared());
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+ EXPECT_TRUE(ref2->isShared());
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+ EXPECT_EQ(ref1, ref2);
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+
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+ ref1 = NULL;
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+ EXPECT_FALSE(ref2->isShared());
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+
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+ ref2 = NULL;
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+ ASSERT_TRUE(deleted);
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+}
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+
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+TEST(ThreadSafeRefCount, Concurrent)
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+{
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+ enum
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+ {
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+ NUM_ADD_REFS_PER_THREAD = 10,
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+ NUM_EXTRA_REFS_PER_THREAD = 10,
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+ NUM_THREADS = 10
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+ };
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+
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+ class TestObject : public ThreadSafeRefCount<TestObject> {};
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+ typedef ThreadSafeRef<TestObject> TestObjectRef;
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+ TestObjectRef mRef;
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+
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+ class TestThread : public Thread
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+ {
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+ public:
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+ TestObjectRef mRef;
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+ Vector<TestObjectRef> mExtraRefs;
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+
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+ TestThread(TestObjectRef ref) : mRef(ref) {}
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+
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+ void run(void* arg)
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+ {
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+ if (!arg)
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+ {
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+ // Create references.
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+ for (U32 i = 0; i < NUM_ADD_REFS_PER_THREAD; i++)
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+ mRef->addRef();
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+
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+ mExtraRefs.setSize(NUM_EXTRA_REFS_PER_THREAD);
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+ for (U32 i = 0; i < NUM_EXTRA_REFS_PER_THREAD; i++)
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+ mExtraRefs[i] = mRef;
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+ }
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+ else
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+ {
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+ // Clear references.
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+ mExtraRefs.clear();
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+ for (U32 i = 0; i < NUM_ADD_REFS_PER_THREAD; i++)
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+ mRef->release();
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+ }
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+ }
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+ };
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+
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+ mRef = new TestObject;
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+ EXPECT_EQ(mRef->getRefCount(), 2); // increments of 2
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+
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+ Vector<TestThread*> threads;
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+ threads.setSize(NUM_THREADS);
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+
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+ // Create threads.
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+ for (U32 i = 0; i < NUM_THREADS; i++)
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+ threads[i] = new TestThread(mRef);
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+
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+ // Run phase 1: create references.
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+ for (U32 i = 0; i < NUM_THREADS; i++)
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+ threads[i]->start(NULL);
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+
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+ // Wait for completion.
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+ for (U32 i = 0; i < NUM_THREADS; i++)
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+ threads[i]->join();
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+
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+ Con::printf("REF: %i", mRef->getRefCount());
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+ EXPECT_EQ(mRef->getRefCount(), 2 + ((NUM_ADD_REFS_PER_THREAD + NUM_EXTRA_REFS_PER_THREAD) * NUM_THREADS * 2));
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+
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+ // Run phase 2: release references.
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+ for (U32 i = 0; i < NUM_THREADS; i++)
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+ threads[i]->start((void*) 1);
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+
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+ // Wait for completion.
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+ for (U32 i = 0; i < NUM_THREADS; i++)
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+ {
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+ threads[i]->join();
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+ delete threads[i];
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+ }
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+
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+ EXPECT_EQ(mRef->getRefCount(), 2); // increments of two
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+
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+ mRef = NULL;
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+}
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+
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+TEST(ThreadSafeRefCount, Tagging)
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+{
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+ struct TestObject : public ThreadSafeRefCount<TestObject> {};
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+ typedef ThreadSafeRef<TestObject> TestObjectRef;
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+
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+ TestObjectRef ref;
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+ EXPECT_FALSE(ref.isTagged());
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+ EXPECT_TRUE(bool(ref));
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+ EXPECT_FALSE(bool(ref.ptr()));
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+
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+ EXPECT_TRUE(ref.trySetFromTo(ref, NULL));
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+ EXPECT_FALSE(ref.isTagged());
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+
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+ EXPECT_TRUE(ref.trySetFromTo(ref, NULL, TestObjectRef::TAG_Set));
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+ EXPECT_TRUE(ref.isTagged());
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+ EXPECT_TRUE(ref.trySetFromTo(ref, NULL, TestObjectRef::TAG_Set));
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+ EXPECT_TRUE(ref.isTagged());
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+
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+ EXPECT_TRUE(ref.trySetFromTo(ref, NULL, TestObjectRef::TAG_Unset));
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+ EXPECT_FALSE(ref.isTagged());
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+ EXPECT_TRUE(ref.trySetFromTo(ref, NULL, TestObjectRef::TAG_Unset));
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+ EXPECT_FALSE(ref.isTagged());
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+
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+ EXPECT_TRUE(ref.trySetFromTo(ref, NULL, TestObjectRef::TAG_SetOrFail));
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+ EXPECT_TRUE(ref.isTagged());
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+ EXPECT_FALSE(ref.trySetFromTo(ref, NULL, TestObjectRef::TAG_SetOrFail));
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+ EXPECT_TRUE(ref.isTagged());
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+ EXPECT_FALSE(ref.trySetFromTo(ref, NULL, TestObjectRef::TAG_FailIfSet));
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+
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+ EXPECT_TRUE(ref.trySetFromTo(ref, NULL, TestObjectRef::TAG_UnsetOrFail));
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+ EXPECT_FALSE(ref.isTagged());
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+ EXPECT_FALSE(ref.trySetFromTo(ref, NULL, TestObjectRef::TAG_UnsetOrFail));
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+ EXPECT_FALSE(ref.isTagged());
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+ EXPECT_FALSE(ref.trySetFromTo(ref, NULL, TestObjectRef::TAG_FailIfUnset));
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+
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+ TestObjectRef objectA = new TestObject;
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+ TestObjectRef objectB = new TestObject;
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+
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+ EXPECT_FALSE(objectA->isShared());
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+ EXPECT_FALSE(objectB->isShared());
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+
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+ ref = objectA;
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+ EXPECT_FALSE(ref.isTagged());
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+ EXPECT_TRUE(ref == objectA);
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+ EXPECT_TRUE(ref == objectA.ptr());
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+ EXPECT_TRUE(objectA->isShared());
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+
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+ EXPECT_TRUE(ref.trySetFromTo(objectA, objectB, TestObjectRef::TAG_Set));
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+ EXPECT_TRUE(ref.isTagged());
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+ EXPECT_EQ(ref, objectB);
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+ EXPECT_EQ(ref, objectB.ptr());
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+ EXPECT_TRUE(objectB->isShared());
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+ EXPECT_FALSE(objectA->isShared());
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+
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+ EXPECT_TRUE(ref.trySetFromTo(ref, objectA));
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+ EXPECT_TRUE(ref.isTagged());
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+ EXPECT_EQ(ref, objectA);
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+ EXPECT_EQ(ref, objectA.ptr());
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+}
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+
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+#endif
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