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 "src/cpp/server/load_reporter/get_cpu_stats.h"
20
21 #include <grpc/grpc.h>
22 #include <grpc/support/port_platform.h>
23 #include <gtest/gtest.h>
24
25 #include "test/core/test_util/port.h"
26 #include "test/core/test_util/test_config.h"
27
28 namespace grpc {
29 namespace testing {
30 namespace {
31
TEST(GetCpuStatsTest,ReadOnce)32 TEST(GetCpuStatsTest, ReadOnce) { grpc::load_reporter::GetCpuStatsImpl(); }
33
TEST(GetCpuStatsTest,BusyNoLargerThanTotal)34 TEST(GetCpuStatsTest, BusyNoLargerThanTotal) {
35 auto p = grpc::load_reporter::GetCpuStatsImpl();
36 uint64_t busy = p.first;
37 uint64_t total = p.second;
38 ASSERT_LE(busy, total);
39 }
40
TEST(GetCpuStatsTest,Ascending)41 TEST(GetCpuStatsTest, Ascending) {
42 const size_t kRuns = 100;
43 auto prev = grpc::load_reporter::GetCpuStatsImpl();
44 for (size_t i = 0; i < kRuns; ++i) {
45 auto cur = grpc::load_reporter::GetCpuStatsImpl();
46 ASSERT_LE(prev.first, cur.first);
47 ASSERT_LE(prev.second, cur.second);
48 prev = cur;
49 }
50 }
51
52 } // namespace
53 } // namespace testing
54 } // namespace grpc
55
main(int argc,char ** argv)56 int main(int argc, char** argv) {
57 grpc::testing::TestEnvironment env(&argc, argv);
58 ::testing::InitGoogleTest(&argc, argv);
59 return RUN_ALL_TESTS();
60 }
61