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rocksdb/utilities/object_registry_test.cc

174 lines
5.8 KiB

// Copyright (c) 2016-present, Facebook, Inc. All rights reserved.
// This source code is licensed under both the GPLv2 (found in the
// COPYING file in the root directory) and Apache 2.0 License
// (found in the LICENSE.Apache file in the root directory).
#ifndef ROCKSDB_LITE
#include "rocksdb/utilities/object_registry.h"
#include "test_util/testharness.h"
namespace rocksdb {
class EnvRegistryTest : public testing::Test {
public:
static int num_a, num_b;
};
int EnvRegistryTest::num_a = 0;
int EnvRegistryTest::num_b = 0;
static FactoryFunc<Env> test_reg_a = ObjectLibrary::Default()->Register<Env>(
"a://.*",
[](const std::string& /*uri*/, std::unique_ptr<Env>* /*env_guard*/,
std::string* /* errmsg */) {
++EnvRegistryTest::num_a;
return Env::Default();
});
static FactoryFunc<Env> test_reg_b = ObjectLibrary::Default()->Register<Env>(
"b://.*", [](const std::string& /*uri*/, std::unique_ptr<Env>* env_guard,
std::string* /* errmsg */) {
++EnvRegistryTest::num_b;
// Env::Default() is a singleton so we can't grant ownership directly to
// the caller - we must wrap it first.
env_guard->reset(new EnvWrapper(Env::Default()));
return env_guard->get();
});
TEST_F(EnvRegistryTest, Basics) {
std::string msg;
std::unique_ptr<Env> env_guard;
auto registry = ObjectRegistry::NewInstance();
auto res = registry->NewObject<Env>("a://test", &env_guard, &msg);
ASSERT_NE(res, nullptr);
ASSERT_EQ(env_guard, nullptr);
ASSERT_EQ(1, num_a);
ASSERT_EQ(0, num_b);
res = registry->NewObject<Env>("b://test", &env_guard, &msg);
ASSERT_NE(res, nullptr);
ASSERT_NE(env_guard, nullptr);
ASSERT_EQ(1, num_a);
ASSERT_EQ(1, num_b);
res = registry->NewObject<Env>("c://test", &env_guard, &msg);
ASSERT_EQ(res, nullptr);
ASSERT_EQ(env_guard, nullptr);
ASSERT_EQ(1, num_a);
ASSERT_EQ(1, num_b);
}
TEST_F(EnvRegistryTest, LocalRegistry) {
std::string msg;
std::unique_ptr<Env> guard;
auto registry = ObjectRegistry::NewInstance();
std::shared_ptr<ObjectLibrary> library = std::make_shared<ObjectLibrary>();
registry->AddLibrary(library);
library->Register<Env>(
"test-local",
[](const std::string& /*uri*/, std::unique_ptr<Env>* /*guard */,
std::string* /* errmsg */) { return Env::Default(); });
ObjectLibrary::Default()->Register<Env>(
"test-global",
[](const std::string& /*uri*/, std::unique_ptr<Env>* /*guard */,
std::string* /* errmsg */) { return Env::Default(); });
ASSERT_EQ(
ObjectRegistry::NewInstance()->NewObject<Env>("test-local", &guard, &msg),
nullptr);
ASSERT_NE(
ObjectRegistry::NewInstance()->NewObject("test-global", &guard, &msg),
nullptr);
ASSERT_NE(registry->NewObject<Env>("test-local", &guard, &msg), nullptr);
ASSERT_NE(registry->NewObject<Env>("test-global", &guard, &msg), nullptr);
}
TEST_F(EnvRegistryTest, CheckShared) {
std::shared_ptr<Env> shared;
std::shared_ptr<ObjectRegistry> registry = ObjectRegistry::NewInstance();
std::shared_ptr<ObjectLibrary> library = std::make_shared<ObjectLibrary>();
registry->AddLibrary(library);
library->Register<Env>(
"unguarded",
[](const std::string& /*uri*/, std::unique_ptr<Env>* /*guard */,
std::string* /* errmsg */) { return Env::Default(); });
library->Register<Env>(
"guarded", [](const std::string& /*uri*/, std::unique_ptr<Env>* guard,
std::string* /* errmsg */) {
guard->reset(new EnvWrapper(Env::Default()));
return guard->get();
});
ASSERT_OK(registry->NewSharedObject<Env>("guarded", &shared));
ASSERT_NE(shared, nullptr);
shared.reset();
ASSERT_NOK(registry->NewSharedObject<Env>("unguarded", &shared));
ASSERT_EQ(shared, nullptr);
}
TEST_F(EnvRegistryTest, CheckStatic) {
Env* env = nullptr;
std::shared_ptr<ObjectRegistry> registry = ObjectRegistry::NewInstance();
std::shared_ptr<ObjectLibrary> library = std::make_shared<ObjectLibrary>();
registry->AddLibrary(library);
library->Register<Env>(
"unguarded",
[](const std::string& /*uri*/, std::unique_ptr<Env>* /*guard */,
std::string* /* errmsg */) { return Env::Default(); });
library->Register<Env>(
"guarded", [](const std::string& /*uri*/, std::unique_ptr<Env>* guard,
std::string* /* errmsg */) {
guard->reset(new EnvWrapper(Env::Default()));
return guard->get();
});
ASSERT_NOK(registry->NewStaticObject<Env>("guarded", &env));
ASSERT_EQ(env, nullptr);
env = nullptr;
ASSERT_OK(registry->NewStaticObject<Env>("unguarded", &env));
ASSERT_NE(env, nullptr);
}
TEST_F(EnvRegistryTest, CheckUnique) {
std::unique_ptr<Env> unique;
std::shared_ptr<ObjectRegistry> registry = ObjectRegistry::NewInstance();
std::shared_ptr<ObjectLibrary> library = std::make_shared<ObjectLibrary>();
registry->AddLibrary(library);
library->Register<Env>(
"unguarded",
[](const std::string& /*uri*/, std::unique_ptr<Env>* /*guard */,
std::string* /* errmsg */) { return Env::Default(); });
library->Register<Env>(
"guarded", [](const std::string& /*uri*/, std::unique_ptr<Env>* guard,
std::string* /* errmsg */) {
guard->reset(new EnvWrapper(Env::Default()));
return guard->get();
});
ASSERT_OK(registry->NewUniqueObject<Env>("guarded", &unique));
ASSERT_NE(unique, nullptr);
unique.reset();
ASSERT_NOK(registry->NewUniqueObject<Env>("unguarded", &unique));
ASSERT_EQ(unique, nullptr);
}
} // namespace rocksdb
int main(int argc, char** argv) {
::testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}
#else // ROCKSDB_LITE
#include <stdio.h>
int main(int /*argc*/, char** /*argv*/) {
fprintf(stderr, "SKIPPED as EnvRegistry is not supported in ROCKSDB_LITE\n");
return 0;
}
#endif // ROCKSDB_LITE