53 lines
1.6 KiB
C#
53 lines
1.6 KiB
C#
using System;
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using NUnit.Framework;
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using NUnit.Framework.Constraints;
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using OpenSim.Tests.Common;
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namespace OpenSim.Tests.Common
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{
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public class DoubleToleranceConstraint : ANumericalToleranceConstraint
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{
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private double _baseValue;
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private double _valueToBeTested;
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public DoubleToleranceConstraint(double baseValue, double tolerance) : base(tolerance)
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{
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_baseValue = baseValue;
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}
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///<summary>
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///Test whether the constraint is satisfied by a given value
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///</summary>
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///<param name="valueToBeTested">The value to be tested</param>
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///<returns>
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///True for success, false for failure
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///</returns>
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public override bool Matches(object valueToBeTested)
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{
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if (valueToBeTested == null)
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{
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throw new ArgumentException("Constraint cannot be used upon null values.");
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}
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if( valueToBeTested.GetType() != typeof(double))
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{
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throw new ArgumentException("Constraint cannot be used upon non double-values.");
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}
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_valueToBeTested = (double)valueToBeTested;
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return IsWithinDoubleConstraint(_valueToBeTested, _baseValue );
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}
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public override void WriteDescriptionTo(MessageWriter writer)
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{
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writer.WriteExpectedValue(string.Format("A value {0} within tolerance of plus or minus {1}",_baseValue,_tolerance));
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}
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public override void WriteActualValueTo(MessageWriter writer)
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{
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writer.WriteActualValue(_valueToBeTested);
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}
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}
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}
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