raster image of linking-refs-206-t

Tests that values for the xlink role and arcrole attributes are stored in the DOM. The test is passed if the raster image and the vector image both have dark green and light green borders, same as the reference image.

The values for role and arcrole are based on the RDDL specifications of well known link natures (role) and well known link purposes (arcrole). Roles uses the namespace URI (for XML content types) or the canonical IANA URI of the media type registration (for non-XML content).

A uDOM script reads the values of the xlink role and arcrole attributes, checks that they are the correct values, and sets the fill colour of some rectangles from shades of red (meaning incorrect) to shades of green (meaning correct).