#1221 Added testcase

testdata/scad/bugs/issue1221.scad

@@ -0,0 +1,8 @@
+$fn=4;
+difference(){
+!    union(){
+        translate([0,0,-1.5]) cylinder(h=9, r=26, center=true);
+        translate([0.0, 0.0, 6.0]) rotate([180, 0, 0]) cylinder(h=3, r1=25, r2=26);
+    }
+    cylinder(h=14, r=23.0, center=true);
+}

tests/CMakeLists.txt

@@ -1266,7 +1266,8 @@ list(APPEND BUGS_FILES ${CMAKE_SOURCE_DIR}/../testdata/scad/bugs/issue13.scad
                        ${CMAKE_SOURCE_DIR}/../testdata/scad/bugs/issue1105d.scad
                        ${CMAKE_SOURCE_DIR}/../testdata/scad/bugs/issue1215.scad
                        ${CMAKE_SOURCE_DIR}/../testdata/scad/bugs/issue1215b.scad
-                       ${CMAKE_SOURCE_DIR}/../testdata/scad/bugs/issue1215c.scad)
+                       ${CMAKE_SOURCE_DIR}/../testdata/scad/bugs/issue1215c.scad
+                       ${CMAKE_SOURCE_DIR}/../testdata/scad/bugs/issue1221.scad)
 
 # We know that we cannot import weakly manifold files into CGAL, so to make tests easier
 # to manage, don't try. Once we improve import, we can reenable this