I couldn’t understand why I could call my WCF service from WcfTestClient, but when I hit it with integration tests built using the unit test framework I got this message:
Test method Lookup.IntegrationTests.HttpLabelTests.GetLabel threw exception:
System.ServiceModel.ProtocolException: The content type text/html; charset=utf-8 of the response message does not match the content type of the binding (text/xml; charset=utf-8). If using a custom encoder, be sure that the IsContentTypeSupported method is implemented properly. The first 1024 bytes of the response were: '<html>
<head>
<title>Could not load file or assembly 'Microsoft.Practices.EnterpriseLibrary.Common' or one of its dependencies. Strong name signature could not be verified. The assembly may have been tampered with, or it was delay signed but not fully signed with the correct private key. (Exception from HRESULT: 0x80131045)</title>
<style>
body {font-family:"Verdana";font-weight:normal;font-size: .7em;color:black;}
p {font-family:"Verdana";font-weight:normal;color:black;margin-top: -5px}
b {font-family:"Verdana";font-weight:bold;color:black;margin-top: -5px}
H1 { font-family:"Verdana";font-weight:normal;font-size:18pt;color:red }
H2 { font-family:"Verdana";font-weight:normal;font-size:14pt;color:maroon }
pre {font-family:"Lucida Console";font-size: .9em}
.marker {font-weight: bold; color: black;text-decoration: none;}
.version {color: gray;}
.error {margin-bottom: 10px;}
.expandabl'. ---> System.Net.WebException: The remote server returned an error: (500) Internal Server Error.
The answer is CodeCoverage. By default Visual Studio 2010 tries to measure coverage for every assembly in the service bin. To avoid the problem turn this off, and add coverage for each assembly you are interested in individually.
