Simplified and renamed test related to #612

testdata/scad/bugs/incorrect_polygon.scad

@@ -1,16 +0,0 @@
-
-$fn = 64;
-
-module inverse() difference() { square(1e6,center=true); child(); }
-module offset(d=1) minkowski() { circle(d); child(); }
-
-module s() {
-	inverse() offset(2) inverse() offset(2) union() { 
-		hull() { circle(r=4); translate([0,3]) circle(r=4); } 
-		translate([0,-3]) hull() { circle(r=1); translate([10,0]) circle(r=1); } 
-	}
-}
-difference() {
-	linear_extrude(height=3,center=true,convexity=3) s();
-	linear_extrude(height=9,center=true) circle(r=2);
-}

testdata/scad/bugs/issue612.scad

@@ -0,0 +1,13 @@
+/*
+  The inner minkowski creates a polygon with a tiny crack in it, due to our
+  coincident vertex collapse not being topology-aware.
+  The difference and outer minkowski was added to visualize this.
+*/
+$fn = 64;
+minkowski() {
+    difference() {
+        square(40,center=true);
+        minkowski() { circle(2); circle(4); }
+    }
+    square(1);
+}

tests/CMakeLists.txt

@@ -863,7 +863,6 @@ list(APPEND CGALPNGTEST_FILES ${FEATURES_FILES} ${SCAD_DXF_FILES} ${EXAMPLE_FILE
 list(APPEND CGALPNGTEST_FILES ${CMAKE_SOURCE_DIR}/../testdata/scad/misc/include-tests.scad
                            ${CMAKE_SOURCE_DIR}/../testdata/scad/misc/use-tests.scad
                            ${CMAKE_SOURCE_DIR}/../testdata/scad/bugs/transform-nan-inf-tests.scad
-                           ${CMAKE_SOURCE_DIR}/../testdata/scad/bugs/incorrect_polygon.scad
                            ${CMAKE_SOURCE_DIR}/../testdata/scad/misc/localfiles-test.scad
                            ${CMAKE_SOURCE_DIR}/../testdata/scad/misc/localfiles_dir/localfiles-compatibility-test.scad
                            ${CMAKE_SOURCE_DIR}/../testdata/scad/misc/rotate-empty-bbox.scad
@@ -911,7 +910,8 @@ list(APPEND BUGS_FILES ${CMAKE_SOURCE_DIR}/../testdata/scad/bugs/issue495.scad
                        ${CMAKE_SOURCE_DIR}/../testdata/scad/bugs/issue584.scad
                        ${CMAKE_SOURCE_DIR}/../testdata/scad/bugs/issue585.scad
                        ${CMAKE_SOURCE_DIR}/../testdata/scad/bugs/issue591.scad
-                       ${CMAKE_SOURCE_DIR}/../testdata/scad/bugs/issue593.scad)
+                       ${CMAKE_SOURCE_DIR}/../testdata/scad/bugs/issue593.scad
+                       ${CMAKE_SOURCE_DIR}/../testdata/scad/bugs/issue612.scad)
 
 list(APPEND OPENCSGTEST_FILES ${BUGS_FILES})
 list(APPEND CGALPNGTEST_FILES ${BUGS_FILES})