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/*
*
* Copyright 2017 gRPC authors.
*
* 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 <stdlib.h>
#include <string.h>
#include <gtest/gtest.h>
#include <grpc/support/alloc.h>
#include <grpc/support/log.h>
#include "src/core/lib/channel/channel_trace.h"
#include "src/core/lib/channel/channelz_registry.h"
#include "src/core/lib/gpr/useful.h"
#include "src/core/lib/gprpp/memory.h"
#include "src/core/lib/iomgr/exec_ctx.h"
#include "src/core/lib/json/json.h"
#include "test/core/util/test_config.h"
#include <stdlib.h>
#include <string.h>
namespace grpc_core {
namespace testing {
// Tests basic ChannelTrace functionality like construction, adding trace, and
// lookups by uuid.
TEST(ChannelzRegistryTest, UuidStartsAboveZeroTest) {
int object_to_register;
intptr_t uuid = ChannelzRegistry::Register(&object_to_register);
EXPECT_GT(uuid, 0) << "First uuid chose must be greater than zero. Zero if "
"reserved according to "
"https://github.com/grpc/proposal/blob/master/"
"A14-channelz.md";
ChannelzRegistry::Unregister(uuid);
}
TEST(ChannelzRegistryTest, UuidsAreIncreasing) {
int object_to_register;
std::vector<intptr_t> uuids;
for (int i = 0; i < 10; ++i) {
// reregister the same object. It's ok since we are just testing uuids
uuids.push_back(ChannelzRegistry::Register(&object_to_register));
}
for (size_t i = 1; i < uuids.size(); ++i) {
EXPECT_LT(uuids[i - 1], uuids[i]) << "Uuids must always be increasing";
}
}
TEST(ChannelzRegistryTest, RegisterGetTest) {
int object_to_register = 42;
intptr_t uuid = ChannelzRegistry::Register(&object_to_register);
int* retrieved = ChannelzRegistry::Get<int>(uuid);
EXPECT_EQ(&object_to_register, retrieved);
}
TEST(ChannelzRegistryTest, MultipleTypeTest) {
int int_to_register = 42;
intptr_t int_uuid = ChannelzRegistry::Register(&int_to_register);
std::string str_to_register = "hello world";
intptr_t str_uuid = ChannelzRegistry::Register(&str_to_register);
int* retrieved_int = ChannelzRegistry::Get<int>(int_uuid);
std::string* retrieved_str = ChannelzRegistry::Get<std::string>(str_uuid);
EXPECT_EQ(&int_to_register, retrieved_int);
EXPECT_EQ(&str_to_register, retrieved_str);
}
namespace {
class Foo {
public:
int bar;
};
} // namespace
TEST(ChannelzRegistryTest, CustomObjectTest) {
Foo* foo = New<Foo>();
foo->bar = 1024;
intptr_t uuid = ChannelzRegistry::Register(foo);
Foo* retrieved = ChannelzRegistry::Get<Foo>(uuid);
EXPECT_EQ(foo, retrieved);
Delete(foo);
}
TEST(ChannelzRegistryTest, NullIfNotPresentTest) {
int object_to_register = 42;
intptr_t uuid = ChannelzRegistry::Register(&object_to_register);
// try to pull out a uuid that does not exist.
int* nonexistant = ChannelzRegistry::Get<int>(uuid + 1);
EXPECT_EQ(nonexistant, nullptr);
int* retrieved = ChannelzRegistry::Get<int>(uuid);
EXPECT_EQ(object_to_register, *retrieved);
EXPECT_EQ(&object_to_register, retrieved);
}
} // namespace testing
} // namespace grpc_core
int main(int argc, char** argv) {
grpc_test_init(argc, argv);
grpc_init();
::testing::InitGoogleTest(&argc, argv);
int ret = RUN_ALL_TESTS();
grpc_shutdown();
return ret;
}
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