1 files changed, 30 insertions, 0 deletions

diff --git a/OpenSim/Tests/Common/ANumericalToleranceConstraint.cs b/OpenSim/Tests/Common/ANumericalToleranceConstraint.cs
new file mode 100644
index 0000000..289e4bb
--- /dev/null
+++ b/OpenSim/Tests/Common/ANumericalToleranceConstraint.cs
@@ -0,0 +1,30 @@
+using System;

+using NUnit.Framework.Constraints;

+

+namespace OpenSim.Tests.Common

+{

+    public abstract class ANumericalToleranceConstraint : Constraint

+    {

+        protected double _tolerance;

+

+        public ANumericalToleranceConstraint(double tolerance)

+        {

+            if (tolerance < 0)

+            {

+                throw new ArgumentException("Tolerance cannot be negative.");

+            }

+            _tolerance = tolerance;

+        }

+

+

+        protected bool IsWithinDoubleConstraint(double doubleValue, double baseValue)

+        {

+            if (doubleValue >= baseValue - _tolerance && doubleValue <= baseValue + _tolerance)

+            {

+                return true;

+            }

+

+            return false;

+        }

+    }

+}