OCCT

puts "================================"
puts "0033104: Modeling Algorithms - Checking for canonical geometry: surface, close to a cylinder, is not recognized"
puts "================================"

restore [locate_data_file bug33104.brep] f

getanasurf asurf f cyl  0.1
if {[isdraw asurf]} {
  set log [dump asurf]
  if { [regexp {CylindricalSurface} $log ] != 1 } {
     puts "Error: surface is not a cylindrical surface"
  }
} else {
  puts "Error: required surface is not got"
}