OCCT

restore [locate_data_file bug29481_ex1.brep] s
explode s f

# chamfer removal
removefeatures result s s_14
checkshape result
checkprops result -s 462.33 -v 194.594 -deps 1.e-7
checknbshapes result -vertex 33 -edge 51 -wire 23 -face 20 -shell 1 -solid 1 -t
CheckIsFeatureRemoved s_14 {e f}

# get history of the operation
savehistory rf_hist

# check modification of the top face
modified m1 rf_hist s_1
checkprops m1 -s 171.478
checknbshapes m1 -vertex 13 -edge 13 -wire 3 -face 1

generated g1 rf_hist s_1
checknbshapes g1 -vertex 1 -edge 1
checkprops g1 -l 6.28319

# check modification of the cylindrical face
modified m20 rf_hist s_20
checkprops m20 -s 6.28319
checknbshapes m20 -vertex 2 -edge 3 -wire 1 -face 1

generated g20 rf_hist s_20
checknbshapes g20 -vertex 1 -edge 1
checkprops g20 -equal g1

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