From 46a9af8594b4ce16d4ca55ebf59e2fd7a847081c Mon Sep 17 00:00:00 2001
From: Marius Kintel <marius@kintel.net>
Date: Tue, 31 Dec 2013 01:20:15 -0500
Subject: Added testcase for #585


diff --git a/testdata/scad/bugs/issue585.scad b/testdata/scad/bugs/issue585.scad
new file mode 100644
index 0000000..f89529d
--- /dev/null
+++ b/testdata/scad/bugs/issue585.scad
@@ -0,0 +1,5 @@
+// Somehow the 2D union/tessellation algorithm doesn't support touching polygons
+// Changing translate([-10,-10,0]) to translate([-9.99,-9.99,0]) works
+
+square([10,10]);
+translate([-10,-10,0]) square([10,10]);
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index aada41a..9e44780 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -888,7 +888,8 @@ list(APPEND BUGS_FILES ${CMAKE_SOURCE_DIR}/../testdata/scad/bugs/issue541.scad
                        ${CMAKE_SOURCE_DIR}/../testdata/scad/bugs/issue578.scad
                        ${CMAKE_SOURCE_DIR}/../testdata/scad/bugs/issue578b.scad
                        ${CMAKE_SOURCE_DIR}/../testdata/scad/bugs/issue582.scad
-                       ${CMAKE_SOURCE_DIR}/../testdata/scad/bugs/issue584.scad)
+                       ${CMAKE_SOURCE_DIR}/../testdata/scad/bugs/issue584.scad
+                       ${CMAKE_SOURCE_DIR}/../testdata/scad/bugs/issue585.scad)
 
 list(APPEND OPENCSGTEST_FILES ${BUGS_FILES})
 list(APPEND CGALPNGTEST_FILES ${BUGS_FILES})
diff --git a/tests/regression/cgalpngtest/issue585-expected.png b/tests/regression/cgalpngtest/issue585-expected.png
new file mode 100644
index 0000000..00c70a0
Binary files /dev/null and b/tests/regression/cgalpngtest/issue585-expected.png differ
diff --git a/tests/regression/opencsgtest/issue585-expected.png b/tests/regression/opencsgtest/issue585-expected.png
new file mode 100644
index 0000000..bc9d333
Binary files /dev/null and b/tests/regression/opencsgtest/issue585-expected.png differ
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