tests/AndroidTests/src/com/android/unit_tests/MathTest.java

/*
 * Copyright (C) 2007 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.unit_tests;

import android.test.PerformanceTestBase;
import android.test.PerformanceTestCase;

/**
 * 
 * Implements basic performance test functionality for java.lang.Math
 * 
 */

public class MathTest extends PerformanceTestBase {
    public static final int ITERATIONS = 1000;
    public static final double sDouble1 = -2450.50;
    public static final double sDouble2 = -500;
    public static final float sFloat = 300.50f;
    public static final int sInt = 90;

    @Override
    public int startPerformance(PerformanceTestCase.Intermediates intermediates) {
        intermediates.setInternalIterations(ITERATIONS);
        return 0;
    }

    public void testDoubleAbs() {
        double result;
        for (int i = ITERATIONS - 1; i >= 0; i--) {
            result = Math.abs(sDouble1);
            result = Math.abs(sDouble1);
            result = Math.abs(sDouble1);
            result = Math.abs(sDouble1);
            result = Math.abs(sDouble1);
            result = Math.abs(sDouble1);
            result = Math.abs(sDouble1);
            result = Math.abs(sDouble1);
            result = Math.abs(sDouble1);
            result = Math.abs(sDouble1);
        }
    }

    public void testFloatAbs() {
        float result;
        for (int i = ITERATIONS - 1; i >= 0; i--) {
            result = Math.abs(sFloat);
            result = Math.abs(sFloat);
            result = Math.abs(sFloat);
            result = Math.abs(sFloat);
            result = Math.abs(sFloat);
            result = Math.abs(sFloat);
            result = Math.abs(sFloat);
            result = Math.abs(sFloat);
            result = Math.abs(sFloat);
            result = Math.abs(sFloat);
        }
    }

    public void testMathSin() {
        double result;
        for (int i = ITERATIONS - 1; i >= 0; i--) {
            result = Math.sin(sDouble1);
            result = Math.sin(sDouble1);
            result = Math.sin(sDouble1);
            result = Math.sin(sDouble1);
            result = Math.sin(sDouble1);
            result = Math.sin(sDouble1);
            result = Math.sin(sDouble1);
            result = Math.sin(sDouble1);
            result = Math.sin(sDouble1);
            result = Math.sin(sDouble1);
        }
    }

    public void testMathCos() {
        double result;
        for (int i = ITERATIONS - 1; i >= 0; i--) {
            result = Math.cos(sDouble1);
            result = Math.cos(sDouble1);
            result = Math.cos(sDouble1);
            result = Math.cos(sDouble1);
            result = Math.cos(sDouble1);
            result = Math.cos(sDouble1);
            result = Math.cos(sDouble1);
            result = Math.cos(sDouble1);
            result = Math.cos(sDouble1);
            result = Math.cos(sDouble1);
        }
    }

    public void testMathTan() {
        double result;
        for (int i = ITERATIONS - 1; i >= 0; i--) {
            result = Math.tan(sDouble1);
            result = Math.tan(sDouble1);
            result = Math.tan(sDouble1);
            result = Math.tan(sDouble1);
            result = Math.tan(sDouble1);
            result = Math.tan(sDouble1);
            result = Math.tan(sDouble1);
            result = Math.tan(sDouble1);
            result = Math.tan(sDouble1);
            result = Math.tan(sDouble1);
        }
    }

    public void testMathASin() {
        double result;
        for (int i = ITERATIONS - 1; i >= 0; i--) {
            result = Math.asin(sDouble1);
            result = Math.asin(sDouble1);
            result = Math.asin(sDouble1);
            result = Math.asin(sDouble1);
            result = Math.asin(sDouble1);
            result = Math.asin(sDouble1);
            result = Math.asin(sDouble1);
            result = Math.asin(sDouble1);
            result = Math.asin(sDouble1);
            result = Math.asin(sDouble1);
        }
    }

    public void testMathACos() {
        double result;
        for (int i = ITERATIONS - 1; i >= 0; i--) {
            result = Math.acos(sDouble1);
            result = Math.acos(sDouble1);
            result = Math.acos(sDouble1);
            result = Math.acos(sDouble1);
            result = Math.acos(sDouble1);
            result = Math.acos(sDouble1);
            result = Math.acos(sDouble1);
            result = Math.acos(sDouble1);
            result = Math.acos(sDouble1);
            result = Math.acos(sDouble1);
        }
    }

    public void testMathATan() {
        double result;
        for (int i = ITERATIONS - 1; i >= 0; i--) {
            result = Math.atan(sDouble1);
            result = Math.atan(sDouble1);
            result = Math.atan(sDouble1);
            result = Math.atan(sDouble1);
            result = Math.atan(sDouble1);
            result = Math.atan(sDouble1);
            result = Math.atan(sDouble1);
            result = Math.atan(sDouble1);
            result = Math.atan(sDouble1);
            result = Math.atan(sDouble1);
        }
    }

    public void testMathLog() {
        double result;
        for (int i = ITERATIONS - 1; i >= 0; i--) {
            result = Math.log(sDouble1);
            result = Math.log(sDouble1);
            result = Math.log(sDouble1);
            result = Math.log(sDouble1);
            result = Math.log(sDouble1);
            result = Math.log(sDouble1);
            result = Math.log(sDouble1);
            result = Math.log(sDouble1);
            result = Math.log(sDouble1);
            result = Math.log(sDouble1);
        }
    }

    public void testMathSqrt() {
        double result;
        for (int i = ITERATIONS - 1; i >= 0; i--) {
            result = Math.sqrt(sDouble1);
            result = Math.sqrt(sDouble1);
            result = Math.sqrt(sDouble1);
            result = Math.sqrt(sDouble1);
            result = Math.sqrt(sDouble1);
            result = Math.sqrt(sDouble1);
            result = Math.sqrt(sDouble1);
            result = Math.sqrt(sDouble1);
            result = Math.sqrt(sDouble1);
            result = Math.sqrt(sDouble1);
        }
    }

    public void testMathCeil() {
        double result;
        for (int i = ITERATIONS - 1; i >= 0; i--) {
            result = Math.ceil(sDouble1);
            result = Math.ceil(sDouble1);
            result = Math.ceil(sDouble1);
            result = Math.ceil(sDouble1);
            result = Math.ceil(sDouble1);
            result = Math.ceil(sDouble1);
            result = Math.ceil(sDouble1);
            result = Math.ceil(sDouble1);
            result = Math.ceil(sDouble1);
            result = Math.ceil(sDouble1);
        }
    }

    public void testMathRound() {
        double result;
        for (int i = ITERATIONS - 1; i >= 0; i--) {
            result = Math.round(sDouble1);
            result = Math.round(sDouble1);
            result = Math.round(sDouble1);
            result = Math.round(sDouble1);
            result = Math.round(sDouble1);
            result = Math.round(sDouble1);
            result = Math.round(sDouble1);
            result = Math.round(sDouble1);
            result = Math.round(sDouble1);
            result = Math.round(sDouble1);
        }
    }

    public void testMathFloor() {
        double result;
        for (int i = ITERATIONS - 1; i >= 0; i--) {
            result = Math.floor(sDouble1);
            result = Math.floor(sDouble1);
            result = Math.floor(sDouble1);
            result = Math.floor(sDouble1);
            result = Math.floor(sDouble1);
            result = Math.floor(sDouble1);
            result = Math.floor(sDouble1);
            result = Math.floor(sDouble1);
            result = Math.floor(sDouble1);
            result = Math.floor(sDouble1);
        }
    }

    public void testMathExp() {
        double result;
        for (int i = ITERATIONS - 1; i >= 0; i--) {
            result = Math.exp(sDouble1);
            result = Math.exp(sDouble1);
            result = Math.exp(sDouble1);
            result = Math.exp(sDouble1);
            result = Math.exp(sDouble1);
            result = Math.exp(sDouble1);
            result = Math.exp(sDouble1);
            result = Math.exp(sDouble1);
            result = Math.exp(sDouble1);
            result = Math.exp(sDouble1);
        }
    }

    /**
     * 
     */

    public void testMathPow() {
        double result;
        for (int i = ITERATIONS - 1; i >= 0; i--) {
            result = Math.pow(sDouble1, sDouble2);
            result = Math.pow(sDouble1, sDouble2);
            result = Math.pow(sDouble1, sDouble2);
            result = Math.pow(sDouble1, sDouble2);
            result = Math.pow(sDouble1, sDouble2);
            result = Math.pow(sDouble1, sDouble2);
            result = Math.pow(sDouble1, sDouble2);
            result = Math.pow(sDouble1, sDouble2);
            result = Math.pow(sDouble1, sDouble2);
            result = Math.pow(sDouble1, sDouble2);
        }
    }

    public void testMathMax() {
        double result;
        for (int i = ITERATIONS - 1; i >= 0; i--) {
            result = Math.max(sDouble1, sDouble2);
            result = Math.max(sDouble1, sDouble2);
            result = Math.max(sDouble1, sDouble2);
            result = Math.max(sDouble1, sDouble2);
            result = Math.max(sDouble1, sDouble2);
            result = Math.max(sDouble1, sDouble2);
            result = Math.max(sDouble1, sDouble2);
            result = Math.max(sDouble1, sDouble2);
            result = Math.max(sDouble1, sDouble2);
            result = Math.max(sDouble1, sDouble2);
        }
    }

    public void testMathMin() {
        double result;
        for (int i = ITERATIONS - 1; i >= 0; i--) {
            result = Math.min(sDouble1, sDouble2);
            result = Math.min(sDouble1, sDouble2);
            result = Math.min(sDouble1, sDouble2);
            result = Math.min(sDouble1, sDouble2);
            result = Math.min(sDouble1, sDouble2);
            result = Math.min(sDouble1, sDouble2);
            result = Math.min(sDouble1, sDouble2);
            result = Math.min(sDouble1, sDouble2);
            result = Math.min(sDouble1, sDouble2);
            result = Math.min(sDouble1, sDouble2);
        }
    }

    public void testMathRandom() {
        double result;
        for (int i = ITERATIONS - 1; i >= 0; i--) {
            result = Math.random();
            result = Math.random();
            result = Math.random();
            result = Math.random();
            result = Math.random();
            result = Math.random();
            result = Math.random();
            result = Math.random();
            result = Math.random();
            result = Math.random();
        }
    }

    public void testMathIEEERemainder() {
        double result;
        for (int i = ITERATIONS - 1; i >= 0; i--) {
            result = Math.IEEEremainder(sDouble1, sDouble2);
            result = Math.IEEEremainder(sDouble1, sDouble2);
            result = Math.IEEEremainder(sDouble1, sDouble2);
            result = Math.IEEEremainder(sDouble1, sDouble2);
            result = Math.IEEEremainder(sDouble1, sDouble2);
            result = Math.IEEEremainder(sDouble1, sDouble2);
            result = Math.IEEEremainder(sDouble1, sDouble2);
            result = Math.IEEEremainder(sDouble1, sDouble2);
            result = Math.IEEEremainder(sDouble1, sDouble2);
            result = Math.IEEEremainder(sDouble1, sDouble2);
        }
    }

    public void testMathToDegrees() {
        double result;
        for (int i = ITERATIONS - 1; i >= 0; i--) {
            result = Math.toDegrees(sDouble1);
            result = Math.toDegrees(sDouble1);
            result = Math.toDegrees(sDouble1);
            result = Math.toDegrees(sDouble1);
            result = Math.toDegrees(sDouble1);
            result = Math.toDegrees(sDouble1);
            result = Math.toDegrees(sDouble1);
            result = Math.toDegrees(sDouble1);
            result = Math.toDegrees(sDouble1);
            result = Math.toDegrees(sDouble1);
        }
    }

    public void testMathToRadians() {
        double result;
        for (int i = ITERATIONS - 1; i >= 0; i--) {
            result = Math.toRadians(sDouble1);
            result = Math.toRadians(sDouble1);
            result = Math.toRadians(sDouble1);
            result = Math.toRadians(sDouble1);
            result = Math.toRadians(sDouble1);
            result = Math.toRadians(sDouble1);
            result = Math.toRadians(sDouble1);
            result = Math.toRadians(sDouble1);
            result = Math.toRadians(sDouble1);
            result = Math.toRadians(sDouble1);
        }
    }
}