OCCT

puts "========"
puts "OCC715"
puts "SAM1582"
puts "========"
puts ""
##########################################
## section of two faces produces wrong number of section edges
##########################################

restore [locate_data_file OCC715_2.brep] f2 
restore [locate_data_file OCC715_3.brep] f3 

bsection result f2 f3

set expl [explode result]

set length [llength $expl]
puts "Result is $length section edge"

if {$length != 3} {
    puts "Faulty OCC715"
} else {
    puts "OCC715 OK"
}

checkprops result -l 100. 
checkshape result 
checksection result
checkview -display result -2d -path ${imagedir}/${test_image}.png