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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
using System;
using System.Collections;
/// <summary>
/// System.Math.Abs(System.Single)
/// </summary>
public class MathAbs7
{
public static int Main(string[] args)
{
MathAbs7 abs7 = new MathAbs7();
TestLibrary.TestFramework.BeginTestCase("Testing System.Math.Abs(System.Single)...");
if (abs7.RunTests())
{
TestLibrary.TestFramework.EndTestCase();
TestLibrary.TestFramework.LogInformation("PASS");
return 100;
}
else
{
TestLibrary.TestFramework.EndTestCase();
TestLibrary.TestFramework.LogInformation("FAIL");
return 0;
}
}
public bool RunTests()
{
bool retVal = true;
TestLibrary.TestFramework.LogInformation("[Positive]");
retVal = PosTest1() && retVal;
retVal = PosTest2() && retVal;
retVal = PosTest3() && retVal;
retVal = PosTest4() && retVal;
retVal = PosTest5() && retVal;
retVal = PosTest6() && retVal;
return retVal;
}
public bool PosTest1()
{
bool retVal = true;
TestLibrary.TestFramework.BeginScenario("PosTest1: Verify the max value of Single should be equal to its Abs value");
try
{
Single max = Single.MaxValue;
if (Math.Abs(max) != max)
{
TestLibrary.TestFramework.LogError("001", "The Abs of max value should be equal to itself!");
retVal = false;
}
}
catch (Exception e)
{
TestLibrary.TestFramework.LogError("002", "Unexpected exception occurs: " + e);
retVal = false;
}
return retVal;
}
public bool PosTest2()
{
bool retVal = true;
TestLibrary.TestFramework.BeginScenario("PosTest2: Verify the min value of Single should be equal to its Abs value");
try
{
Single min = Single.MinValue;
if (Math.Abs(min) != -min)
{
TestLibrary.TestFramework.LogError("003", "The Abs of max value should be equal to it's contrary!");
retVal = false;
}
}
catch (Exception e)
{
TestLibrary.TestFramework.LogError("004", "Unexpected exception occurs: " + e);
retVal = false;
}
return retVal;
}
public bool PosTest3()
{
bool retVal = true;
TestLibrary.TestFramework.BeginScenario("PosTest3: Verify the NegativeInfinity of Single should be equal to its contrary...");
try
{
Single negInfinit = Single.NegativeInfinity;
if (Math.Abs(negInfinit) != -negInfinit)
{
TestLibrary.TestFramework.LogError("005", "The Abs of max value should be equal to it's contrary!");
retVal = false;
}
}
catch (Exception e)
{
TestLibrary.TestFramework.LogError("006", "Unexpected exception occurs: " + e);
retVal = false;
}
return retVal;
}
public bool PosTest4()
{
bool retVal = true;
TestLibrary.TestFramework.BeginScenario("PosTest4: Verify the PositiveInfinity of Single should be equal to its Abs value");
try
{
Single posInfinit = Single.PositiveInfinity;
if (Math.Abs(posInfinit) != posInfinit)
{
TestLibrary.TestFramework.LogError("007", "The Abs of max value should be equal to itself!");
retVal = false;
}
}
catch (Exception e)
{
TestLibrary.TestFramework.LogError("008", "Unexpected exception occurs: " + e);
retVal = false;
}
return retVal;
}
public bool PosTest5()
{
bool retVal = true;
TestLibrary.TestFramework.BeginScenario("PosTest5: Verify Abs value of zero should be equal to both itself and its contrary value...");
try
{
Single zero = 0;
if (Math.Abs(zero) != zero || Math.Abs(zero) != -zero)
{
TestLibrary.TestFramework.LogError("009", "Abs value of zero should be equal to both itself and its contrary value!");
retVal = false;
}
}
catch (Exception e)
{
TestLibrary.TestFramework.LogError("010", "Unexpected exception occurs: " + e);
retVal = false;
}
return retVal;
}
public bool PosTest6()
{
bool retVal = true;
TestLibrary.TestFramework.BeginScenario("PosTest6: Verify Abs value of Epsilon ");
try
{
Single epsilon = Single.Epsilon;
if (Math.Abs(epsilon) != epsilon)
{
TestLibrary.TestFramework.LogError("011", "Abs value of epsilon should be equal to itself...");
retVal = false;
}
}
catch (Exception e)
{
TestLibrary.TestFramework.LogError("012", "Unexpected exception occurs: " + e);
retVal = false;
}
return retVal;
}
}
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