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/*
* Copyright (C) 2017 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.
*/
#define LOG_TAG "Singleton_test"
#include <dlfcn.h>
#include <android-base/file.h>
#include <android-base/stringprintf.h>
#include <utils/Singleton.h>
#include <gtest/gtest.h>
#include "Singleton_test.h"
namespace android {
TEST(SingletonTest, bug35674422) {
std::string path = android::base::GetExecutableDirectory();
// libutils_test_singleton1.so contains the ANDROID_SINGLETON_STATIC_INSTANCE
// definition of SingletonTestData, load it first.
std::string lib = android::base::StringPrintf("%s/libutils_test_singleton1.so", path.c_str());
void* handle1 = dlopen(lib.c_str(), RTLD_NOW);
ASSERT_TRUE(handle1 != nullptr) << dlerror();
// libutils_test_singleton2.so references SingletonTestData but should not
// have a definition
lib = android::base::StringPrintf("%s/libutils_test_singleton2.so", path.c_str());
void* handle2 = dlopen(lib.c_str(), RTLD_NOW);
ASSERT_TRUE(handle2 != nullptr) << dlerror();
using has_fn_t = decltype(&singletonHasInstance);
using get_fn_t = decltype(&singletonGetInstanceContents);
using set_fn_t = decltype(&singletonSetInstanceContents);
has_fn_t has1 = reinterpret_cast<has_fn_t>(dlsym(handle1, "singletonHasInstance"));
ASSERT_TRUE(has1 != nullptr) << dlerror();
has_fn_t has2 = reinterpret_cast<has_fn_t>(dlsym(handle2, "singletonHasInstance"));
ASSERT_TRUE(has2 != nullptr) << dlerror();
get_fn_t get1 = reinterpret_cast<get_fn_t>(dlsym(handle1, "singletonGetInstanceContents"));
ASSERT_TRUE(get1 != nullptr) << dlerror();
get_fn_t get2 = reinterpret_cast<get_fn_t>(dlsym(handle2, "singletonGetInstanceContents"));
ASSERT_TRUE(get2 != nullptr) << dlerror();
set_fn_t set1 = reinterpret_cast<set_fn_t>(dlsym(handle2, "singletonSetInstanceContents"));
ASSERT_TRUE(set1 != nullptr) << dlerror();
EXPECT_FALSE(has1());
EXPECT_FALSE(has2());
set1(12345678U);
EXPECT_TRUE(has1());
EXPECT_TRUE(has2());
EXPECT_EQ(12345678U, get1());
EXPECT_EQ(12345678U, get2());
}
}
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