OCCT

puts "========================"
puts " OCC615"
puts "========================"
puts ""
#############################
## Wrong resultat of BLEND operation
#############################

restore [locate_data_file OCC615.brep] a 
checkshape a
explode a e

if [catch {blend result a 9 a_15 } catch_result] {
    puts "Faulty OCC615: function BLEND works with exception"
} else {
    puts "OCC615 OK: function CHAMF works OK"
}

checkprops result -s 197055.
checkshape result
checkview -display result -2d -path ${imagedir}/${test_image}.png