public String getBaseEndPointUrl(final TestNode node) {
        return "http://localhost:" + node.getPort();
    }
This will be called during initNodes() and provides a means for the sub-class
to provide a fully mocked out implementation of the rest resource. The arguments
are provided so you can have mocks tailored to the node.
stroom-test-common/src/main/java/stroom/test/common/util/test/AbstractMultiNodeResourceTest.java