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-rw-r--r--testdata/scad/features/difference-tests.scad5
1 files changed, 5 insertions, 0 deletions
diff --git a/testdata/scad/features/difference-tests.scad b/testdata/scad/features/difference-tests.scad
index cc508a5..4d82676 100644
--- a/testdata/scad/features/difference-tests.scad
+++ b/testdata/scad/features/difference-tests.scad
@@ -1,3 +1,8 @@
+// Empty
+difference();
+// No children
+difference() { }
+
difference() {
cube([10,10,10], center=true);
cylinder(r=4, h=20, center=true);
contact: Jan Huwald // Impressum