1 | /* |
2 | * Copyright 2014-present Facebook, Inc. |
3 | * |
4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
5 | * you may not use this file except in compliance with the License. |
6 | * You may obtain a copy of the License at |
7 | * |
8 | * http://www.apache.org/licenses/LICENSE-2.0 |
9 | * |
10 | * Unless required by applicable law or agreed to in writing, software |
11 | * distributed under the License is distributed on an "AS IS" BASIS, |
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
13 | * See the License for the specific language governing permissions and |
14 | * limitations under the License. |
15 | */ |
16 | |
17 | #include <folly/GLog.h> |
18 | |
19 | #include <folly/portability/GTest.h> |
20 | |
21 | #include <vector> |
22 | |
23 | TEST(LogEveryMs, basic) { |
24 | std::vector<std::chrono::steady_clock::time_point> hist; |
25 | |
26 | while (hist.size() < 10) { |
27 | FB_LOG_EVERY_MS(INFO, 10) |
28 | << "test msg " |
29 | << (hist.push_back(std::chrono::steady_clock::now()), hist.size()); |
30 | } |
31 | |
32 | bool atLeastOneIsGood = false; |
33 | for (size_t i = 0; i < hist.size() - 1; ++i) { |
34 | auto delta = hist[i + 1] - hist[i]; |
35 | if (delta > std::chrono::milliseconds(5) && |
36 | delta < std::chrono::milliseconds(15)) { |
37 | atLeastOneIsGood = true; |
38 | } |
39 | } |
40 | EXPECT_TRUE(atLeastOneIsGood); |
41 | } |
42 | |
43 | TEST(LogEveryMs, zero) { |
44 | int count = 0; |
45 | |
46 | for (int i = 0; i < 10; ++i) { |
47 | FB_LOG_EVERY_MS(INFO, 0) << "test msg " << ++count; |
48 | } |
49 | |
50 | EXPECT_EQ(10, count); |
51 | } |
52 | |