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