[smuxi/stable] Engine-Tests: enhance assert messages of TestMessage()

[Mirco M. M. Bauer <mmmbauer src gnome org>]

commit cb81b42d62497fbff7d84326a6af8e76102970dd
Author: Mirco Bauer <meebey meebey net>
Date:   Sun Nov 6 02:52:07 2016 +0800

    Engine-Tests: enhance assert messages of TestMessage()

 src/Engine-Tests/MessageBuilderTests.cs |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/src/Engine-Tests/MessageBuilderTests.cs b/src/Engine-Tests/MessageBuilderTests.cs
index cc3d405..f040d48 100644
--- a/src/Engine-Tests/MessageBuilderTests.cs
+++ b/src/Engine-Tests/MessageBuilderTests.cs
@@ -316,10 +316,10 @@ namespace Smuxi.Engine
             builder.TimeStamp = DateTime.MinValue;
             builder.AppendMessage(message);
             var actualMsg = builder.ToMessage();
-            Assert.AreEqual(expectedMsg.GetType(), actualMsg.GetType());
-            Assert.AreEqual(expectedMsg.MessageParts.Count, actualMsg.MessageParts.Count);
+            Assert.AreEqual(expectedMsg.GetType(), actualMsg.GetType(), "The message type does not match");
+            Assert.AreEqual(expectedMsg.MessageParts.Count, actualMsg.MessageParts.Count, "The number of 
message parts do not match");
             for (int i = 0; i < expectedMsg.MessageParts.Count; i++) {
-                Assert.AreEqual(expectedMsg.MessageParts[i].GetType(), actualMsg.MessageParts[i].GetType());
+                Assert.AreEqual(expectedMsg.MessageParts[i].GetType(), actualMsg.MessageParts[i].GetType(), 
"The type of the message part does not match");
             }
             Assert.AreEqual(expectedMsg, actualMsg);
         }