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mfbt/tests/TestRollingMean.cpp@925c144e1f1f (annotated)

mfbt/tests/TestRollingMean.cpp

Fri, 16 Jan 2015 18:13:44 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Fri, 16 Jan 2015 18:13:44 +0100

branch

TOR_BUG_9701

changeset 14

925c144e1f1f

permissions

-rw-r--r--

Integrate suggestion from review to improve consistency with existing code.

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	}