зеркало из https://github.com/mozilla/gecko-dev.git
115 строки
2.5 KiB
C++
115 строки
2.5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/Assertions.h"
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#include "mozilla/RollingMean.h"
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using mozilla::RollingMean;
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class MyClass {
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public:
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uint32_t mValue;
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explicit MyClass(uint32_t aValue = 0) : mValue(aValue) {}
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bool operator==(const MyClass& aOther) const {
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return mValue == aOther.mValue;
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}
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MyClass operator+(const MyClass& aOther) const {
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return MyClass(mValue + aOther.mValue);
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}
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MyClass operator-(const MyClass& aOther) const {
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return MyClass(mValue - aOther.mValue);
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}
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MyClass operator/(uint32_t aDiv) const { return MyClass(mValue / aDiv); }
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};
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class RollingMeanSuite {
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public:
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RollingMeanSuite() {}
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void runTests() {
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testZero();
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testClear();
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testRolling();
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testClass();
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testMove();
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}
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private:
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void testZero() {
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RollingMean<uint32_t, uint64_t> mean(3);
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MOZ_RELEASE_ASSERT(mean.empty());
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}
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void testClear() {
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RollingMean<uint32_t, uint64_t> mean(3);
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mean.insert(4);
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MOZ_RELEASE_ASSERT(mean.mean() == 4);
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mean.clear();
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MOZ_RELEASE_ASSERT(mean.empty());
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mean.insert(3);
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MOZ_RELEASE_ASSERT(mean.mean() == 3);
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}
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void testRolling() {
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RollingMean<uint32_t, uint64_t> mean(3);
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mean.insert(10);
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MOZ_RELEASE_ASSERT(mean.mean() == 10);
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mean.insert(20);
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MOZ_RELEASE_ASSERT(mean.mean() == 15);
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mean.insert(35);
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MOZ_RELEASE_ASSERT(mean.mean() == 21);
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mean.insert(5);
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MOZ_RELEASE_ASSERT(mean.mean() == 20);
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mean.insert(10);
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MOZ_RELEASE_ASSERT(mean.mean() == 16);
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}
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void testClass() {
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RollingMean<MyClass, MyClass> mean(3);
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mean.insert(MyClass(4));
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MOZ_RELEASE_ASSERT(mean.mean() == MyClass(4));
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mean.clear();
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MOZ_RELEASE_ASSERT(mean.empty());
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}
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void testMove() {
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RollingMean<uint32_t, uint64_t> mean(3);
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mean = RollingMean<uint32_t, uint64_t>(4);
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MOZ_RELEASE_ASSERT(mean.maxValues() == 4);
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mean.insert(10);
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MOZ_RELEASE_ASSERT(mean.mean() == 10);
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mean = RollingMean<uint32_t, uint64_t>(3);
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mean.insert(30);
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mean.insert(40);
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mean.insert(50);
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mean.insert(60);
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MOZ_RELEASE_ASSERT(mean.mean() == 50);
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}
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};
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int main() {
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RollingMeanSuite suite;
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suite.runTests();
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return 0;
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}
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