diff --git a/tests/regression/dumptest/minkowski-tests-expected.txt b/tests/regression/dumptest/minkowski-tests-expected.txt
new file mode 100644
index 00000000..7435769a
--- /dev/null
+++ b/tests/regression/dumptest/minkowski-tests-expected.txt
@@ -0,0 +1,66 @@
+group() {
+	multmatrix([[1, 0, 0, -25], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
+		group() {
+			minkowski(convexity = 0) {
+				difference() {
+					square(size = [10, 10], center = false);
+					multmatrix([[1, 0, 0, 2], [0, 1, 0, 2], [0, 0, 1, 0], [0, 0, 0, 1]]) {
+						square(size = [6, 6], center = false);
+					}
+				}
+				circle($fn = 0, $fa = 12, $fs = 1, r = 2);
+			}
+		}
+	}
+	multmatrix([[1, 0, 0, 0], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
+		group() {
+			minkowski(convexity = 0) {
+				difference() {
+					square(size = [10, 10], center = false);
+					square(size = [5, 5], center = false);
+				}
+				circle($fn = 0, $fa = 12, $fs = 1, r = 5);
+			}
+		}
+	}
+	multmatrix([[1, 0, 0, 25], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
+		group() {
+			minkowski(convexity = 0) {
+				square(size = [10, 10], center = false);
+				circle($fn = 0, $fa = 12, $fs = 1, r = 5);
+			}
+		}
+	}
+	multmatrix([[1, 0, 0, -25], [0, 1, 0, 25], [0, 0, 1, 0], [0, 0, 0, 1]]) {
+		group() {
+			minkowski(convexity = 0) {
+				difference() {
+					cube(size = [10, 10, 5], center = false);
+					multmatrix([[1, 0, 0, 2], [0, 1, 0, 2], [0, 0, 1, -2], [0, 0, 0, 1]]) {
+						cube(size = [6, 6, 10], center = false);
+					}
+				}
+				cylinder($fn = 0, $fa = 12, $fs = 1, h = 1, r1 = 2, r2 = 2, center = false);
+			}
+		}
+	}
+	multmatrix([[1, 0, 0, 0], [0, 1, 0, 25], [0, 0, 1, 0], [0, 0, 0, 1]]) {
+		group() {
+			minkowski(convexity = 0) {
+				difference() {
+					cube(size = [10, 10, 5], center = false);
+					cube(size = [5, 5, 5], center = false);
+				}
+				cylinder($fn = 0, $fa = 12, $fs = 1, h = 5, r1 = 5, r2 = 5, center = false);
+			}
+		}
+	}
+	multmatrix([[1, 0, 0, 25], [0, 1, 0, 25], [0, 0, 1, 0], [0, 0, 0, 1]]) {
+		group() {
+			minkowski(convexity = 0) {
+				cube(size = [10, 10, 5], center = false);
+				cylinder($fn = 0, $fa = 12, $fs = 1, h = 5, r1 = 5, r2 = 5, center = false);
+			}
+		}
+	}
+}