[Bug 3856] No tests for doc-available()

http://www.w3.org/Bugs/Public/show_bug.cgi?id=3856

           Summary: No tests for doc-available()
           Product: XML Query Test Suite
           Version: 1.0.1
          Platform: PC
        OS/Version: Windows XP
            Status: NEW
          Severity: normal
          Priority: P2
         Component: XML Query Test Suite
        AssignedTo: andrew.eisenberg@us.ibm.com
        ReportedBy: mike@saxonica.com
         QAContact: public-qt-comments@w3.org


The test suite contains no tests for the doc-available() function, other than
two tests that supply incorrectly-typed arguments