public String analysisOutput()   {
        analyze();
        String s = "\n";
        for (FlowEntry flow: label.keySet()) {
            s += ("Flow Rule: " + flowEntryRepresentation(flow) + "\n");
            s += ("Analysis: " + label.get(flow) + "!\n\n");
        }
        return s;
    }
@Test
    @Ignore("This needs to be reworked to be more robust")
    public void basic() {
        flowRuleService = new MockFlowRuleService();
        flowRuleService.applyFlowRules(genFlow("ATL-001", 110, 90));
        flowRuleService.applyFlowRules(genFlow("ATL-001", 110, 100));
        flowRuleService.applyFlowRules(genFlow("ATL-001", 110, 150));
        flowRuleService.applyFlowRules(genFlow("ATL-002", 80, 70));
        flowRuleService.applyFlowRules(genFlow("ATL-003", 120, 130));
        flowRuleService.applyFlowRules(genFlow("ATL-004", 50));
        flowRuleService.applyFlowRules(genFlow("ATL-005", 140, 10));

        linkService.addLink("H00:00:00:00:00:0660", 160, "ATL-005", 140);
        linkService.addLink("ATL-005", 10, "ATL-004", 40);
        linkService.addLink("ATL-004", 50, "ATL-002", 80);
        linkService.addLink("ATL-002", 70, "ATL-001", 110);
        linkService.addLink("ATL-001", 150, "H00:00:00:00:00:0770", 170);
        linkService.addLink("ATL-001", 90, "ATL-004", 30);
        linkService.addLink("ATL-001", 100, "ATL-003", 120);
        linkService.addLink("ATL-003", 130, "ATL-005", 20);

        topologyService = new MockTopologyService(linkService.createdGraph);

        FlowAnalyzer flowAnalyzer = new FlowAnalyzer();
        flowAnalyzer.flowRuleService = flowRuleService;
        flowAnalyzer.linkService = linkService;
        flowAnalyzer.topologyService = topologyService;

        String labels = flowAnalyzer.analysisOutput();
        String correctOutput = "Flow Rule: Device: atl-005, [IN_PORT{port=140}], [OUTPUT{port=10}]\n" +
                "Analysis: Cleared!\n" +
                "\n" +
                "Flow Rule: Device: atl-003, [IN_PORT{port=120}], [OUTPUT{port=130}]\n" +
                "Analysis: Black Hole!\n" +
                "\n" +
                "Flow Rule: Device: atl-001, [IN_PORT{port=110}], [OUTPUT{port=90}]\n" +
                "Analysis: Cycle Critical Point!\n" +
                "\n" +
                "Flow Rule: Device: atl-004, [], [OUTPUT{port=50}]\n" +
                "Analysis: Cycle!\n" +
                "\n" +
                "Flow Rule: Device: atl-001, [IN_PORT{port=110}], [OUTPUT{port=150}]\n" +
                "Analysis: Cleared!\n" +
                "\n" +
                "Flow Rule: Device: atl-001, [IN_PORT{port=110}], [OUTPUT{port=100}]\n" +
                "Analysis: Black Hole!\n" +
                "\n" +
                "Flow Rule: Device: atl-002, [IN_PORT{port=80}], [OUTPUT{port=70}]\n" +
                "Analysis: Cycle!\n";
        assertEquals("Wrong labels", new TreeSet(Arrays.asList(labels.replaceAll("\\s+", "").split("!"))),
                     new TreeSet(Arrays.asList(correctOutput.replaceAll("\\s+", "").split("!"))));
    }