Geometry partA = SplitTestUtil.read("LINESTRING (110 260, 280 260, 280 150, 110 150, 110 260)");
List<Geometry> expectedParts = new ArrayList<Geometry>();
expectedParts.add(partA);
RingExtractor ringExt = new RingExtractor(line);
ResultRingExtractor output = ringExt.processExtraction();
analyzeOutput(output, expectedParts);
}