From 47c042a559d5359a804cd790f3d8df6df6ccb002 Mon Sep 17 00:00:00 2001
From: Marius Kintel <marius@kintel.net>
Date: Sun, 19 Jan 2014 10:18:10 -0500
Subject: [PATCH 1/2] minor clarification

---
 doc/testing.txt | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/doc/testing.txt b/doc/testing.txt
index ee560a57..311f0b8b 100644
--- a/doc/testing.txt
+++ b/doc/testing.txt
@@ -3,10 +3,8 @@ Running regression tests:
 
 Prerequisites: cmake, python, ImageMagick 6.5.9.3 or newer
 
-First, get a working qmake GUI build of the main openscad binary. It is 
-used by the tests. Next, get MCAD installed by using 
-
-  'git submodule update --init'
+First, get a working qmake GUI build of the main openscad binary and install MCAD.
+See the main README.
 
 A) Building test environment
 
@@ -38,10 +36,11 @@ $ ctest -C <configs>  Adds extended tests belonging to configs.
                       Default  - Run default tests
                       Heavy    - Run more time consuming tests (> ~10 seconds)
                       Examples - test all examples
+                      Bugs     - test known bugs (tests will fail)
                       All      - test everything
 
-Adding a new regression test:
-------------------------------
+Adding a new test:
+------------------
 
 1) create a test file at an appropriate location under testdata/
 2) if the test is non-obvious, create a human readable description as comments in the test (or in another file in the same directory in case the file isn't human readable)

From 556040439e702da771659d2ddd026825bde733f6 Mon Sep 17 00:00:00 2001
From: Marius Kintel <marius@kintel.net>
Date: Sun, 19 Jan 2014 12:18:09 -0500
Subject: [PATCH 2/2] Added test of minkowski2 with >2 children

---
 testdata/scad/features/minkowski2-tests.scad  |   7 +++++++
 .../cgalpngtest/minkowski2-tests-expected.png | Bin 6984 -> 7257 bytes
 .../dumptest/minkowski2-tests-expected.csg    |   7 +++++++
 .../opencsgtest/minkowski2-tests-expected.png | Bin 7388 -> 7638 bytes
 .../minkowski2-tests-expected.png             | Bin 7388 -> 7644 bytes
 5 files changed, 14 insertions(+)

diff --git a/testdata/scad/features/minkowski2-tests.scad b/testdata/scad/features/minkowski2-tests.scad
index 37fad27c..92a7dcad 100644
--- a/testdata/scad/features/minkowski2-tests.scad
+++ b/testdata/scad/features/minkowski2-tests.scad
@@ -32,3 +32,10 @@ translate([25,0,0]) roundedBox2dSimple();
 
 // One child
 translate([0,-20,0]) minkowski() { square(10); }
+
+// >2 children
+translate([-20,-20,0]) minkowski() {
+    square(10);
+    square(2, center=true);
+    circle(1);
+}
diff --git a/tests/regression/cgalpngtest/minkowski2-tests-expected.png b/tests/regression/cgalpngtest/minkowski2-tests-expected.png
index b85161b3aa590bb85f4102d4cc430637ec53f060..806153b290abbae69915ed4b1d7d9699d61437ee 100644
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diff --git a/tests/regression/dumptest/minkowski2-tests-expected.csg b/tests/regression/dumptest/minkowski2-tests-expected.csg
index e653f8bb..75c5559f 100644
--- a/tests/regression/dumptest/minkowski2-tests-expected.csg
+++ b/tests/regression/dumptest/minkowski2-tests-expected.csg
@@ -34,4 +34,11 @@ group() {
 			square(size = [10, 10], center = false);
 		}
 	}
+	multmatrix([[1, 0, 0, -20], [0, 1, 0, -20], [0, 0, 1, 0], [0, 0, 0, 1]]) {
+		minkowski(convexity = 0) {
+			square(size = [10, 10], center = false);
+			square(size = [2, 2], center = true);
+			circle($fn = 0, $fa = 12, $fs = 2, r = 1);
+		}
+	}
 }
diff --git a/tests/regression/opencsgtest/minkowski2-tests-expected.png b/tests/regression/opencsgtest/minkowski2-tests-expected.png
index 9ea580d74bde900ab05940f1ac868b0261be5aa6..8e7e96e0dab5ca4808fa15c76a5a16afb546a69e 100644
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diff --git a/tests/regression/throwntogethertest/minkowski2-tests-expected.png b/tests/regression/throwntogethertest/minkowski2-tests-expected.png
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