puts "============"
puts "OCC27159"
puts "============"
puts ""
#######################################################################
# Section between two faces is lost
#######################################################################

smallview

set expected_MaxTolerance 5.00000e-006
set tol_abs_MaxTolerance 1.e-07
set tol_rel_MaxTolerance 1.e-07

restore [locate_data_file bug27159_f1f2.brep] a
explode a

bop a_1 a_2
bopsection res
donly res
fit
donly a_1 a_2 res

checknbshapes res -vertex 2 -edge 1 -wire 0 -face 0 -shell 0 -solid 0 -compsolid 0 -compound 1 -shape 4

checkshape res

regexp {Tolerance +MAX=([-0-9.+eE]+)} [tolerance res] full MaxTolerance
checkreal "MaxTolerance" ${MaxTolerance} ${expected_MaxTolerance} ${tol_abs_MaxTolerance} ${tol_rel_MaxTolerance}

checkprops res -l 0.0100036