When class does not match the loop for a component will loop forever.
org.cfcunit.framework.Assert.cfc:144
<cfif NOT Len(message)>
<cfset message = "CFC is not of type '#arguments.class#'.">
<cfbreak/>
</cfif>
This should be:
<cfif NOT Len(message)>
<cfset message = "CFC is not of type '#arguments.class#'.">
</cfif>
<cfbreak/>
To ensure the loop breaks successfully.