1 files changed, 39 insertions, 0 deletions
diff --git a/src/DotNetOpenAuth.Test/Messaging/ErrorUtilitiesTests.cs b/src/DotNetOpenAuth.Test/Messaging/ErrorUtilitiesTests.cs
new file mode 100644
index 0000000..36b6ae7
--- /dev/null
+++ b/src/DotNetOpenAuth.Test/Messaging/ErrorUtilitiesTests.cs
@@ -0,0 +1,39 @@
+//-----------------------------------------------------------------------
+// <copyright file="ErrorUtilitiesTests.cs" company="Andrew Arnott">
+//     Copyright (c) Andrew Arnott. All rights reserved.
+// </copyright>
+//-----------------------------------------------------------------------
+
+namespace DotNetOpenAuth.Test.Messaging {
+	using System;
+	using DotNetOpenAuth.Messaging;
+	using Microsoft.VisualStudio.TestTools.UnitTesting;
+
+	[TestClass]
+	public class ErrorUtilitiesTests {
+		[TestMethod, ExpectedException(typeof(ArgumentNullException))]
+		public void VerifyArgumentNotNullThrows() {
+			ErrorUtilities.VerifyArgumentNotNull(null, "someArg");
+		}
+
+		[TestMethod]
+		public void VerifyArgumentNotNullDoesNotThrow() {
+			ErrorUtilities.VerifyArgumentNotNull("hi", "someArg");
+		}
+
+		[TestMethod, ExpectedException(typeof(ArgumentNullException))]
+		public void VerifyNonZeroLengthOnNull() {
+			ErrorUtilities.VerifyNonZeroLength(null, "someArg");
+		}
+
+		[TestMethod, ExpectedException(typeof(ArgumentException))]
+		public void VerifyNonZeroLengthOnEmpty() {
+			ErrorUtilities.VerifyNonZeroLength(string.Empty, "someArg");
+		}
+
+		[TestMethod]
+		public void VerifyNonZeroLengthOnNonEmpty() {
+			ErrorUtilities.VerifyNonZeroLength("some Value", "someArg");
+		}
+	}
+}