mfbt/tests/TestRollingMean.cpp@b8a032363ba2 (annotated)
mfbt/tests/TestRollingMean.cpp
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| michael@0 | 2 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this file, |
| michael@0 | 4 | * You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | #include "mozilla/Assertions.h" |
| michael@0 | 7 | #include "mozilla/RollingMean.h" |
| michael@0 | 8 | |
| michael@0 | 9 | using mozilla::RollingMean; |
| michael@0 | 10 | |
| michael@0 | 11 | class MyClass |
| michael@0 | 12 | { |
| michael@0 | 13 | public: |
| michael@0 | 14 | uint32_t value; |
| michael@0 | 15 | |
| michael@0 | 16 | MyClass(uint32_t val = 0) : value(val) { |
| michael@0 | 17 | } |
| michael@0 | 18 | |
| michael@0 | 19 | bool operator==(const MyClass& other) const { |
| michael@0 | 20 | return value == other.value; |
| michael@0 | 21 | } |
| michael@0 | 22 | |
| michael@0 | 23 | MyClass operator+(const MyClass& other) const { |
| michael@0 | 24 | return MyClass(value + other.value); |
| michael@0 | 25 | } |
| michael@0 | 26 | |
| michael@0 | 27 | MyClass operator-(const MyClass& other) const { |
| michael@0 | 28 | return MyClass(value - other.value); |
| michael@0 | 29 | } |
| michael@0 | 30 | |
| michael@0 | 31 | MyClass operator/(uint32_t div) const { |
| michael@0 | 32 | return MyClass(value / div); |
| michael@0 | 33 | } |
| michael@0 | 34 | }; |
| michael@0 | 35 | |
| michael@0 | 36 | class RollingMeanSuite |
| michael@0 | 37 | { |
| michael@0 | 38 | public: |
| michael@0 | 39 | RollingMeanSuite() |
| michael@0 | 40 | { } |
| michael@0 | 41 | |
| michael@0 | 42 | void runTests() { |
| michael@0 | 43 | testZero(); |
| michael@0 | 44 | testClear(); |
| michael@0 | 45 | testRolling(); |
| michael@0 | 46 | testClass(); |
| michael@0 | 47 | testMove(); |
| michael@0 | 48 | } |
| michael@0 | 49 | |
| michael@0 | 50 | private: |
| michael@0 | 51 | void testZero() { |
| michael@0 | 52 | RollingMean<uint32_t, uint64_t> mean(3); |
| michael@0 | 53 | MOZ_RELEASE_ASSERT(mean.empty()); |
| michael@0 | 54 | } |
| michael@0 | 55 | |
| michael@0 | 56 | void testClear() { |
| michael@0 | 57 | RollingMean<uint32_t, uint64_t> mean(3); |
| michael@0 | 58 | |
| michael@0 | 59 | mean.insert(4); |
| michael@0 | 60 | MOZ_RELEASE_ASSERT(mean.mean() == 4); |
| michael@0 | 61 | |
| michael@0 | 62 | mean.clear(); |
| michael@0 | 63 | MOZ_RELEASE_ASSERT(mean.empty()); |
| michael@0 | 64 | |
| michael@0 | 65 | mean.insert(3); |
| michael@0 | 66 | MOZ_RELEASE_ASSERT(mean.mean() == 3); |
| michael@0 | 67 | } |
| michael@0 | 68 | |
| michael@0 | 69 | void testRolling() { |
| michael@0 | 70 | RollingMean<uint32_t, uint64_t> mean(3); |
| michael@0 | 71 | |
| michael@0 | 72 | mean.insert(10); |
| michael@0 | 73 | MOZ_RELEASE_ASSERT(mean.mean() == 10); |
| michael@0 | 74 | |
| michael@0 | 75 | mean.insert(20); |
| michael@0 | 76 | MOZ_RELEASE_ASSERT(mean.mean() == 15); |
| michael@0 | 77 | |
| michael@0 | 78 | mean.insert(35); |
| michael@0 | 79 | MOZ_RELEASE_ASSERT(mean.mean() == 21); |
| michael@0 | 80 | |
| michael@0 | 81 | mean.insert(5); |
| michael@0 | 82 | MOZ_RELEASE_ASSERT(mean.mean() == 20); |
| michael@0 | 83 | |
| michael@0 | 84 | mean.insert(10); |
| michael@0 | 85 | MOZ_RELEASE_ASSERT(mean.mean() == 16); |
| michael@0 | 86 | } |
| michael@0 | 87 | |
| michael@0 | 88 | void testClass() { |
| michael@0 | 89 | RollingMean<MyClass, MyClass> mean(3); |
| michael@0 | 90 | |
| michael@0 | 91 | mean.insert(MyClass(4)); |
| michael@0 | 92 | MOZ_RELEASE_ASSERT(mean.mean() == MyClass(4)); |
| michael@0 | 93 | |
| michael@0 | 94 | mean.clear(); |
| michael@0 | 95 | MOZ_RELEASE_ASSERT(mean.empty()); |
| michael@0 | 96 | } |
| michael@0 | 97 | |
| michael@0 | 98 | void testMove() { |
| michael@0 | 99 | RollingMean<uint32_t, uint64_t> mean(3); |
| michael@0 | 100 | mean = RollingMean<uint32_t, uint64_t>(4); |
| michael@0 | 101 | MOZ_RELEASE_ASSERT(mean.maxValues() == 4); |
| michael@0 | 102 | |
| michael@0 | 103 | mean.insert(10); |
| michael@0 | 104 | MOZ_RELEASE_ASSERT(mean.mean() == 10); |
| michael@0 | 105 | |
| michael@0 | 106 | mean = RollingMean<uint32_t, uint64_t>(3); |
| michael@0 | 107 | mean.insert(30); |
| michael@0 | 108 | mean.insert(40); |
| michael@0 | 109 | mean.insert(50); |
| michael@0 | 110 | mean.insert(60); |
| michael@0 | 111 | MOZ_RELEASE_ASSERT(mean.mean() == 50); |
| michael@0 | 112 | } |
| michael@0 | 113 | |
| michael@0 | 114 | }; |
| michael@0 | 115 | |
| michael@0 | 116 | int main() |
| michael@0 | 117 | { |
| michael@0 | 118 | RollingMeanSuite suite; |
| michael@0 | 119 | suite.runTests(); |
| michael@0 | 120 | return 0; |
| michael@0 | 121 | } |
