void () { myFixture.configureByText("a.xml", """ <<info descr="Namespace '' is not bound">nodeTypes</info> xmlns:nt="<error descr="URI is not registered (Settings | Languages & Frameworks | Schemas and DTDs)">http://www.jcp.org/jcr/nt/1.0</error>" xmlns:customns="<error descr="URI is not registered (Settings | Languages & Frameworks | Schemas and DTDs)">http://customurl</error>"> <nodeType name="customns:item" isMixin="false" hasOrderableChildNodes="false"> <supertypes> <supertype>nt:folder</supertype> </supertypes> </nodeType> </<info descr="Namespace '' is not bound">nodeTypes</info>>"""); myFixture.testHighlighting(); }