Atif Niyaz | 8384682 | 2019-07-18 15:17:40 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2019 The Android Open Source Project |
| 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 <gtest/gtest.h> |
| 18 | #include <input/LatencyStatistics.h> |
| 19 | #include <cmath> |
| 20 | #include <limits> |
Atif Niyaz | 6740e66 | 2019-08-07 10:54:29 -0700 | [diff] [blame] | 21 | #include <thread> |
Atif Niyaz | 8384682 | 2019-07-18 15:17:40 -0700 | [diff] [blame] | 22 | |
| 23 | namespace android { |
| 24 | namespace test { |
| 25 | |
| 26 | TEST(LatencyStatisticsTest, ResetStats) { |
| 27 | LatencyStatistics stats{5min}; |
| 28 | stats.addValue(5.0); |
| 29 | stats.addValue(19.3); |
| 30 | stats.addValue(20); |
| 31 | stats.reset(); |
| 32 | |
| 33 | ASSERT_EQ(stats.getCount(), 0u); |
| 34 | ASSERT_EQ(std::isnan(stats.getStDev()), true); |
| 35 | ASSERT_EQ(std::isnan(stats.getMean()), true); |
| 36 | } |
| 37 | |
| 38 | TEST(LatencyStatisticsTest, AddStatsValue) { |
| 39 | LatencyStatistics stats{5min}; |
| 40 | stats.addValue(5.0); |
| 41 | |
| 42 | ASSERT_EQ(stats.getMin(), 5.0); |
| 43 | ASSERT_EQ(stats.getMax(), 5.0); |
| 44 | ASSERT_EQ(stats.getCount(), 1u); |
| 45 | ASSERT_EQ(stats.getMean(), 5.0); |
| 46 | ASSERT_EQ(stats.getStDev(), 0.0); |
| 47 | } |
| 48 | |
| 49 | TEST(LatencyStatisticsTest, AddMultipleStatsValue) { |
| 50 | LatencyStatistics stats{5min}; |
| 51 | stats.addValue(4.0); |
| 52 | stats.addValue(6.0); |
| 53 | stats.addValue(8.0); |
| 54 | stats.addValue(10.0); |
| 55 | |
| 56 | float stdev = stats.getStDev(); |
| 57 | |
| 58 | ASSERT_EQ(stats.getMin(), 4.0); |
| 59 | ASSERT_EQ(stats.getMax(), 10.0); |
| 60 | ASSERT_EQ(stats.getCount(), 4u); |
| 61 | ASSERT_EQ(stats.getMean(), 7.0); |
| 62 | ASSERT_EQ(stdev * stdev, 5.0); |
| 63 | } |
| 64 | |
| 65 | TEST(LatencyStatisticsTest, ShouldReportStats) { |
| 66 | LatencyStatistics stats{0min}; |
| 67 | stats.addValue(5.0); |
| 68 | |
Atif Niyaz | 6740e66 | 2019-08-07 10:54:29 -0700 | [diff] [blame] | 69 | std::this_thread::sleep_for(1us); |
| 70 | |
Atif Niyaz | 8384682 | 2019-07-18 15:17:40 -0700 | [diff] [blame] | 71 | ASSERT_EQ(stats.shouldReport(), true); |
| 72 | } |
| 73 | |
| 74 | } // namespace test |
| 75 | } // namespace android |