From 01af68a56e4e6911d484f92f3c844be7dbf6822c Mon Sep 17 00:00:00 2001
From: Christoph Ruegg <git@cdrnet.ch>
Date: Wed, 12 Aug 2009 02:01:53 +0800
Subject: [PATCH] precision: assertion helper for double arrays

Signed-off-by: Christoph Ruegg <git@cdrnet.ch>
---
 src/Managed.UnitTests/AssertHelpers.cs | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/src/Managed.UnitTests/AssertHelpers.cs b/src/Managed.UnitTests/AssertHelpers.cs
index 5d3c397e..05f5b971 100644
--- a/src/Managed.UnitTests/AssertHelpers.cs
+++ b/src/Managed.UnitTests/AssertHelpers.cs
@@ -98,6 +98,24 @@ namespace MathNet.Numerics.UnitTests
             }
         }
 
+        /// <summary>
+        /// Asserts that the expected value and the actual value are equal up to a certain
+        /// maximum error.
+        /// </summary>
+        /// <param name="expected">The expected value list.</param>
+        /// <param name="actual">The actual value list.</param>
+        /// <param name="maximumError">The accuracy required for being almost equal.</param>
+        public static void AlmostEqualList(IList<double> expected, IList<double> actual, double maximumError)
+        {
+            for (int i = 0; i < expected.Count; i++)
+            {
+                if (!actual[i].AlmostEqualWithError(expected[i], maximumError))
+                {
+                    Assert.Fail("Not equal within a maximum error {0}. Expected:{1}; Actual:{2}", maximumError, expected[i], actual[i]);
+                }
+            }
+        }
+
         /// <summary>
         /// Asserts that the expected value and the actual value are equal up to a certain
         /// maximum error.