OCCT

puts "================"
puts "OCC326"
puts "================"
puts ""
###########################################################
## Exception is raised in sewing on internal edges on attached shape
###########################################################

restore [locate_data_file OCC326.brep] a 

if [catch { sewing result a } catch_result] {                                                                                                                       
    puts "Faulty OCC326: here is sewing problem"                                                                                                                                 
} else {
    puts "OCC326 OK: Sewing is ok, there is no except"
}

checkmaxtol result -ref 411.37576056225498
checknbshapes result -shell 1
checkfreebounds result 254

checkview -display result -2d -path ${imagedir}/${test_image}.png