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/*
* Copyright 2011 Google Inc. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "gtest/gtest.h"
#define ENABLE_OBJECT_COUNTER
#include "sfntly/port/refcount.h"
using sfntly::RefCounted;
using sfntly::Ptr;
class Foo : public RefCounted<Foo> {
public: // put in something to make sure it's not empty
int foo_;
int foo() { return foo_; }
};
bool TestSmartPointer() {
// scope out allocation
{
Ptr<Foo> p1;
p1 = new Foo();
EXPECT_EQ(size_t(1), p1->ref_count_);
EXPECT_EQ(size_t(1), RefCounted<Foo>::object_counter_);
Ptr<Foo> p2;
p2 = p1;
EXPECT_EQ(size_t(2), p1->ref_count_);
EXPECT_EQ(size_t(2), p2->ref_count_);
EXPECT_EQ(size_t(1), RefCounted<Foo>::object_counter_);
Ptr<Foo> p3;
p3 = p1;
EXPECT_EQ(size_t(3), p1->ref_count_);
EXPECT_EQ(size_t(3), p2->ref_count_);
EXPECT_EQ(size_t(3), p3->ref_count_);
EXPECT_EQ(size_t(1), RefCounted<Foo>::object_counter_);
p2 = new Foo();
EXPECT_EQ(size_t(2), p1->ref_count_);
EXPECT_EQ(size_t(1), p2->ref_count_);
EXPECT_EQ(size_t(2), p3->ref_count_);
EXPECT_EQ(size_t(2), RefCounted<Foo>::object_counter_);
p3.Release();
EXPECT_EQ(size_t(1), p1->ref_count_);
EXPECT_EQ(NULL, p3.p_);
EXPECT_EQ(size_t(2), RefCounted<Foo>::object_counter_);
p2 = NULL;
EXPECT_EQ(size_t(1), RefCounted<Foo>::object_counter_);
p1 = p1;
EXPECT_EQ(size_t(1), p1->ref_count_);
EXPECT_EQ(size_t(1), RefCounted<Foo>::object_counter_);
p1 = &(*p1);
EXPECT_EQ(size_t(1), p1->ref_count_);
EXPECT_EQ(size_t(1), RefCounted<Foo>::object_counter_);
}
EXPECT_EQ(size_t(0), RefCounted<Foo>::object_counter_);
return true;
}
TEST(SmartPointer, All) {
ASSERT_TRUE(TestSmartPointer());
}
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