The following in a unit tests app.config will break mstest
<trace>
<listeners>
<add type=”Microsoft.WindowsAzure.Diagnostics.DiagnosticMonitorTraceListener, Microsoft.WindowsAzure.Diagnostics, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35″ name=”AzureDiagnostics”>
<filter type=”” />
</add>
</listeners>
</trace>
In the IDE it will report:
An exception occurred while invoking executor ‘executor://mstestadapter/v1’: Object reference not set to an instance of an object.
In mstest it will report:
Unit Test Adapter threw exception:
Could not create Microsoft.WindowsAzure.Diagnostics.DiagnosticMonitorTraceListener, Microsoft.WindowsAzure.Diagnostics, Version=1.8.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35.
Not running in a hosted service or the Development Fabric..