Tests an error is raised for an invalid media type in @content-type.
Test ab-inline-014.xml is expected to fail with error code err:XD0079 [Core steps, XProc]
.
<p:declare-step xmlns:err="http://www.w3.org/ns/xproc-error" xmlns:p="http://www.w3.org/ns/xproc" version="3.0">
<p:output port="result"/>
<p:input port="source">
<p:inline content-type="text">This is a binary, if any.</p:inline>
</p:input>
<p:identity/>
</p:declare-step>
Added tests for content-type as media type