Create test which fails for issue 1217

Author: mki-c2c

tests/unit/operation/buffer/BufferOpTest.cpp

@@ -623,4 +623,18 @@ void object::test<28>
 "MULTIPOLYGON (((24 95.239, 24 96, 24 99, 24.816 99, 24 95.239)), ((3 90, 3 93, 3 96, 3 99, 21 99, 21 96, 21 93, 21 90, 3 90)))");    
 }
 
+// testEndCap
+// test end cap for a line where left and right side are simplified differently, so there is an angle at the end
+// See https://github.com/libgeos/geos/issues/1217
+template<>
+template<>
+void object::test<29>
+()
+{
+    std::string wkt("LINESTRING (0.7 4.7, 146.3 137.1, 146.3 137, 146.6 136.7)");
+    std::unique_ptr<Geometry> result13 = buffer(wkt, 11);	
+    checkValidPolygon(*result13);
+    checkNumHoles(*result13, 0);
+}
+
 } // namespace tut