testName = className + "_" + methodName + ".dot";
out = new File(projectRoot, "test/lastrun/" + testName);
testGraph = cfg.getDotGraph();
outStream = new FileOutputStream(out);
testGraph.printGraph(outStream);
original = new File(projectRoot, "test/" + testName);
if (original.exists()) {
Parser graphParser = new Parser(new FileInputStream(original));
Graph realGraph;