1 /*
2 *
3 * Copyright 2018 gRPC authors.
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 */
18
19 #include <grpc/impl/codegen/port_platform.h>
20
21 #include <grpc/grpc.h>
22 #include <gtest/gtest.h>
23
24 #include "test/core/util/port.h"
25 #include "test/core/util/test_config.h"
26
27 #include "src/cpp/server/load_reporter/get_cpu_stats.h"
28
29 namespace grpc {
30 namespace testing {
31 namespace {
32
TEST(GetCpuStatsTest,ReadOnce)33 TEST(GetCpuStatsTest, ReadOnce) { ::grpc::load_reporter::GetCpuStatsImpl(); }
34
TEST(GetCpuStatsTest,BusyNoLargerThanTotal)35 TEST(GetCpuStatsTest, BusyNoLargerThanTotal) {
36 auto p = ::grpc::load_reporter::GetCpuStatsImpl();
37 uint64_t busy = p.first;
38 uint64_t total = p.second;
39 ASSERT_LE(busy, total);
40 }
41
TEST(GetCpuStatsTest,Ascending)42 TEST(GetCpuStatsTest, Ascending) {
43 const size_t kRuns = 100;
44 auto prev = ::grpc::load_reporter::GetCpuStatsImpl();
45 for (size_t i = 0; i < kRuns; ++i) {
46 auto cur = ::grpc::load_reporter::GetCpuStatsImpl();
47 ASSERT_LE(prev.first, cur.first);
48 ASSERT_LE(prev.second, cur.second);
49 prev = cur;
50 }
51 }
52
53 } // namespace
54 } // namespace testing
55 } // namespace grpc
56
main(int argc,char ** argv)57 int main(int argc, char** argv) {
58 grpc_test_init(argc, argv);
59 ::testing::InitGoogleTest(&argc, argv);
60 return RUN_ALL_TESTS();
61 }
62