OCCT

puts "================"
puts "OCC26522"
puts "================"
puts ""
#######################################################
## Exception while copying offset on C0 surface
#######################################################

restore [locate_data_file bug26522_s.brep] s

set info [checkshape s]

if { [regexp "This shape seems to be valid" ${info}] == 1 } {
    puts "OK: copying offset on C0 surface is correct"
} else {
    puts "Error: copying offset on C0 surface is incorrect"
}