### Question:
XmlTemplateLibrary implements TemplateLibrary { public String serialize() { return source; } XmlTemplateLibrary(Uri uri, Element root, String source);  XmlTemplateLibrary(Uri uri, Element root, String source, boolean safe); TagRegistry getTagRegistry(); Uri getLibraryUri(); boolean isSafe(); String serialize(); static final String TAG_ATTRIBUTE; static final String NAMESPACE_TAG; static final String TEMPLATE_TAG; static final String STYLE_TAG; static final String JAVASCRIPT_TAG; static final String TEMPLATEDEF_TAG; }### Answer:
@Test public void testSerialize() { assertEquals(LIB_MARKUP, lib.serialize()); }