1 /*
2 * Copyright (C) 2024 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 <cmath>
18 #include <cstdint>
19
20 #include "gtest/gtest.h"
21
22 #include "chre/platform/linux/system_time.h"
23 #include "chre/platform/system_time.h"
24 #include "chre/util/throttle.h"
25 #include "chre/util/time.h"
26
27 using ::chre::Milliseconds;
28 using ::chre::Nanoseconds;
29 using ::chre::Seconds;
30 using ::chre::SystemTime;
31 using ::chre::platform_linux::SystemTimeOverride;
32
TEST(Throttle,ThrottlesActionLessThanOneInterval)33 TEST(Throttle, ThrottlesActionLessThanOneInterval) {
34 uint32_t count = 0;
35 constexpr uint32_t kMaxCount = 10;
36 constexpr uint64_t kCallCount = 1000;
37 constexpr Seconds kInterval(1);
38 static_assert(kCallCount < kInterval.toRawNanoseconds());
39
40 for (uint64_t i = 0; i < kCallCount; ++i) {
41 SystemTimeOverride override(i);
42 CHRE_THROTTLE(++count, kInterval, kMaxCount,
43 SystemTime::getMonotonicTime());
44 }
45
46 EXPECT_EQ(count, kMaxCount);
47 }
48
TEST(Throttle,ThrottlesActionMoreThanOneInterval)49 TEST(Throttle, ThrottlesActionMoreThanOneInterval) {
50 uint32_t count = 0;
51 constexpr uint32_t kMaxCount = 10;
52 constexpr uint64_t kCallCount = 1000;
53 constexpr Nanoseconds kInterval(100);
54 static_assert(kCallCount > kInterval.toRawNanoseconds());
55
56 for (uint64_t i = 0; i < kCallCount; ++i) {
57 SystemTimeOverride override(i);
58 CHRE_THROTTLE(++count, kInterval, kMaxCount,
59 SystemTime::getMonotonicTime());
60 }
61
62 EXPECT_EQ(count, (kCallCount / kInterval.toRawNanoseconds()) * kMaxCount);
63 }
64