readstl m [locate_data_file bug28680_sample01b.stl]

# Number of triangles check
checktrinfo m -tri 62075 -nod 31879

# Visual check
checkview -display m -3d -vdispmode 0 -path ${imagedir}/${test_image}_edges.png
checkview -display m -3d -vdispmode 1 -path ${imagedir}/${test_image}_shading.png