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/*
* Copyright (c) Contributors, http://opensimulator.org/
* See CONTRIBUTORS.TXT for a full list of copyright holders.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the OpenSim Project nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
using System;
using NUnit.Framework;
using NUnit.Framework.Constraints;
using OpenSim.Tests.Common;
namespace OpenSim.Tests.Common
{
public class DoubleToleranceConstraint : ANumericalToleranceConstraint
{
private double _baseValue;
private double _valueToBeTested;
public DoubleToleranceConstraint(double baseValue, double tolerance) : base(tolerance)
{
_baseValue = baseValue;
}
///<summary>
///Test whether the constraint is satisfied by a given value
///</summary>
///<param name="valueToBeTested">The value to be tested</param>
///<returns>
///True for success, false for failure
///</returns>
public override bool Matches(object valueToBeTested)
{
if (valueToBeTested == null)
{
throw new ArgumentException("Constraint cannot be used upon null values.");
}
if( valueToBeTested.GetType() != typeof(double))
{
throw new ArgumentException("Constraint cannot be used upon non double-values.");
}
_valueToBeTested = (double)valueToBeTested;
return IsWithinDoubleConstraint(_valueToBeTested, _baseValue );
}
public override void WriteDescriptionTo(MessageWriter writer)
{
writer.WriteExpectedValue(string.Format("A value {0} within tolerance of plus or minus {1}",_baseValue,_tolerance));
}
public override void WriteActualValueTo(MessageWriter writer)
{
writer.WriteActualValue(_valueToBeTested);
}
}
}
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