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/*
* Copyright (C) 2020 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 <binder/Binder.h>
#include <binder/IInterface.h>
#include <gtest/gtest.h>
using android::BBinder;
using android::IBinder;
using android::OK;
using android::sp;
const void* kObjectId1 = reinterpret_cast<const void*>(1);
const void* kObjectId2 = reinterpret_cast<const void*>(2);
void* kObject1 = reinterpret_cast<void*>(101);
void* kObject2 = reinterpret_cast<void*>(102);
void* kObject3 = reinterpret_cast<void*>(103);
TEST(Binder, AttachObject) {
auto binder = sp<BBinder>::make();
EXPECT_EQ(nullptr, binder->attachObject(kObjectId1, kObject1, nullptr, nullptr));
EXPECT_EQ(nullptr, binder->attachObject(kObjectId2, kObject2, nullptr, nullptr));
EXPECT_EQ(kObject1, binder->attachObject(kObjectId1, kObject3, nullptr, nullptr));
}
TEST(Binder, DetachObject) {
auto binder = sp<BBinder>::make();
EXPECT_EQ(nullptr, binder->attachObject(kObjectId1, kObject1, nullptr, nullptr));
EXPECT_EQ(kObject1, binder->detachObject(kObjectId1));
EXPECT_EQ(nullptr, binder->attachObject(kObjectId1, kObject2, nullptr, nullptr));
}
TEST(Binder, AttachExtension) {
auto binder = sp<BBinder>::make();
auto ext = sp<BBinder>::make();
binder->setExtension(ext);
EXPECT_EQ(ext, binder->getExtension());
}
struct MyCookie {
bool* deleted;
};
class UniqueBinder : public BBinder {
public:
UniqueBinder(const void* c) : cookie(reinterpret_cast<const MyCookie*>(c)) {
*cookie->deleted = false;
}
~UniqueBinder() { *cookie->deleted = true; }
const MyCookie* cookie;
};
static sp<IBinder> make(const void* arg) {
return sp<UniqueBinder>::make(arg);
}
TEST(Binder, LookupOrCreateWeak) {
auto binder = sp<BBinder>::make();
bool deleted;
MyCookie cookie = {&deleted};
sp<IBinder> createdBinder = binder->lookupOrCreateWeak(kObjectId1, make, &cookie);
EXPECT_NE(binder, createdBinder);
sp<IBinder> lookedUpBinder = binder->lookupOrCreateWeak(kObjectId1, make, &cookie);
EXPECT_EQ(createdBinder, lookedUpBinder);
EXPECT_FALSE(deleted);
}
TEST(Binder, LookupOrCreateWeakDropSp) {
auto binder = sp<BBinder>::make();
bool deleted1 = false;
bool deleted2 = false;
MyCookie cookie1 = {&deleted1};
MyCookie cookie2 = {&deleted2};
sp<IBinder> createdBinder = binder->lookupOrCreateWeak(kObjectId1, make, &cookie1);
EXPECT_NE(binder, createdBinder);
createdBinder.clear();
EXPECT_TRUE(deleted1);
sp<IBinder> lookedUpBinder = binder->lookupOrCreateWeak(kObjectId1, make, &cookie2);
EXPECT_EQ(&cookie2, sp<UniqueBinder>::cast(lookedUpBinder)->cookie);
EXPECT_FALSE(deleted2);
}
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