# File test/backup/tc_dos_disks.rb, line 118
        def test_scasm_file
                dskname=File.dirname(__FILE__)+"//AAL_1.DSK"
                dsk=DSK.read(dskname)
                assert_equal(:dos,dsk.file_system,"#{dskname} should be DOS 3.3 format")
                assert(dsk.files.length>0,"#{dskname} should have at least one file")         
                asm_file=dsk.files["MORSE CODE"]
                assert(asm_file!=nil,"#{dskname} should have a file called MORSE CODE")
                assert(asm_file.instance_of?(SCAsmFile),"MORSE CODE should be an SCasm file")
                assert(!asm_file.can_be_picture?,"MORSE CODE should NOT be viewable as a picture")
                assert(asm_file.to_s.length>0,"MORSE CODE should have non-zero length")
                assert(!(asm_file.to_s=~/930\W*.LIST OFF/).nil?,"MORSE CODE should start '930        .LIST OFF'")

        end