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 <gtest/gtest.h>
22
23 #include <grpc/grpc.h>
24 #include <grpc/support/port_platform.h>
25
26 #include "test/core/util/port.h"
27 #include "test/core/util/test_config.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::testing::TestEnvironment env(&argc, argv);
59 ::testing::InitGoogleTest(&argc, argv);
60 return RUN_ALL_TESTS();
61 }
62