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      1 /*
      2  * Copyright (C) 2017 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 <thread>
     18 
     19 #include <gtest/gtest.h>
     20 
     21 #include "vhal_v2_0/RecurrentTimer.h"
     22 
     23 namespace {
     24 
     25 using std::chrono::nanoseconds;
     26 using std::chrono::milliseconds;
     27 
     28 #define ASSERT_EQ_WITH_TOLERANCE(val1, val2, tolerance) \
     29 ASSERT_LE(val1 - tolerance, val2); \
     30 ASSERT_GE(val1 + tolerance, val2); \
     31 
     32 
     33 TEST(RecurrentTimerTest, oneInterval) {
     34     std::atomic<int64_t> counter { 0L };
     35     auto counterRef = std::ref(counter);
     36     RecurrentTimer timer([&counterRef](const std::vector<int32_t>& cookies) {
     37         ASSERT_EQ(1u, cookies.size());
     38         ASSERT_EQ(0xdead, cookies.front());
     39         counterRef.get()++;
     40     });
     41 
     42     timer.registerRecurrentEvent(milliseconds(1), 0xdead);
     43     std::this_thread::sleep_for(milliseconds(100));
     44     ASSERT_EQ_WITH_TOLERANCE(100, counter.load(), 20);
     45 }
     46 
     47 TEST(RecurrentTimerTest, multipleIntervals) {
     48     std::atomic<int64_t> counter1ms { 0L };
     49     std::atomic<int64_t> counter5ms { 0L };
     50     auto counter1msRef = std::ref(counter1ms);
     51     auto counter5msRef = std::ref(counter5ms);
     52     RecurrentTimer timer(
     53             [&counter1msRef, &counter5msRef](const std::vector<int32_t>& cookies) {
     54         for (int32_t cookie : cookies) {
     55             if (cookie == 0xdead) {
     56                 counter1msRef.get()++;
     57             } else if (cookie == 0xbeef) {
     58                 counter5msRef.get()++;
     59             } else {
     60                 FAIL();
     61             }
     62         }
     63     });
     64 
     65     timer.registerRecurrentEvent(milliseconds(1), 0xdead);
     66     timer.registerRecurrentEvent(milliseconds(5), 0xbeef);
     67 
     68     std::this_thread::sleep_for(milliseconds(100));
     69     ASSERT_EQ_WITH_TOLERANCE(100, counter1ms.load(), 20);
     70     ASSERT_EQ_WITH_TOLERANCE(20, counter5ms.load(), 5);
     71 }
     72 
     73 }  // anonymous namespace
     74