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/*
* Copyright (C) 2015 The Android Open Source Project
*
* 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>
#include <utils/StrongPointer.h>
#include <utils/RefBase.h>
using namespace android;
class SPFoo : virtual public RefBase {
public:
explicit SPFoo(bool* deleted_check) : mDeleted(deleted_check) {
*mDeleted = false;
}
~SPFoo() {
*mDeleted = true;
}
private:
bool* mDeleted;
};
class SPLightFoo : virtual public VirtualLightRefBase {
public:
explicit SPLightFoo(bool* deleted_check) : mDeleted(deleted_check) { *mDeleted = false; }
~SPLightFoo() { *mDeleted = true; }
private:
bool* mDeleted;
};
template <typename T>
class StrongPointer : public ::testing::Test {};
using RefBaseTypes = ::testing::Types<SPFoo, SPLightFoo>;
TYPED_TEST_CASE(StrongPointer, RefBaseTypes);
TYPED_TEST(StrongPointer, move) {
bool isDeleted;
sp<TypeParam> sp1 = sp<TypeParam>::make(&isDeleted);
TypeParam* foo = sp1.get();
ASSERT_EQ(1, foo->getStrongCount());
{
sp<TypeParam> sp2 = std::move(sp1);
ASSERT_EQ(1, foo->getStrongCount()) << "std::move failed, incremented refcnt";
ASSERT_EQ(nullptr, sp1.get()) << "std::move failed, sp1 is still valid";
// The strong count isn't increasing, let's double check the old object
// is properly reset and doesn't early delete
sp1 = std::move(sp2);
}
ASSERT_FALSE(isDeleted) << "deleted too early! still has a reference!";
{
// Now let's double check it deletes on time
sp<TypeParam> sp2 = std::move(sp1);
}
ASSERT_TRUE(isDeleted) << "foo was leaked!";
}
TYPED_TEST(StrongPointer, NullptrComparison) {
sp<TypeParam> foo;
ASSERT_EQ(foo, nullptr);
ASSERT_EQ(nullptr, foo);
}
TYPED_TEST(StrongPointer, PointerComparison) {
bool isDeleted;
sp<TypeParam> foo = sp<TypeParam>::make(&isDeleted);
ASSERT_EQ(foo.get(), foo);
ASSERT_EQ(foo, foo.get());
ASSERT_NE(nullptr, foo);
ASSERT_NE(foo, nullptr);
}
TYPED_TEST(StrongPointer, Deleted) {
bool isDeleted;
sp<TypeParam> foo = sp<TypeParam>::make(&isDeleted);
auto foo2 = sp<TypeParam>::fromExisting(foo.get());
EXPECT_FALSE(isDeleted);
foo = nullptr;
EXPECT_FALSE(isDeleted);
foo2 = nullptr;
EXPECT_TRUE(isDeleted);
}
TYPED_TEST(StrongPointer, AssertStrongRefExists) {
bool isDeleted;
TypeParam* foo = new TypeParam(&isDeleted);
EXPECT_DEATH(sp<TypeParam>::fromExisting(foo), "");
delete foo;
}
TYPED_TEST(StrongPointer, release) {
bool isDeleted = false;
TypeParam* foo = nullptr;
{
sp<TypeParam> sp1 = sp<TypeParam>::make(&isDeleted);
ASSERT_EQ(1, sp1->getStrongCount());
foo = sp1.release();
}
ASSERT_FALSE(isDeleted) << "release failed, deleted anyway when sp left scope";
ASSERT_EQ(1, foo->getStrongCount()) << "release mismanaged refcount";
foo->decStrong(nullptr);
ASSERT_TRUE(isDeleted) << "foo was leaked!";
}
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