OCCT

puts "========================"
puts " OCC616"
puts "========================"
puts ""
########################################
## Function MKOFFSET gives exception for attached face
########################################

restore [locate_data_file OCC616.brep] a 
checkshape a

if { [catch {mkoffset result a 5 -2} catch_result] } {
    puts "Faulty OCC616: function MKOFFSET works with exception"
} else {
    renamevar result_1 result
    checkshape result
    puts "OCC616 OK: function MKOFFSET works OK"
}

checkprops result -l 1062.78
checkshape result
checksection result
checkview -display result -2d -path ${imagedir}/${test_image}.png