@Test
public void happyFlowRender2SVG() throws IOException, GraphvizException {

	GraphvizEngine engine = new GraphvizEngine();
	assertNotNull(engine);
	String render = "render('" + dot + "'," + Options.create().toJson(false) + ");";
	String result = engine.execute(render);
	URL svg = ClassUtils.getResourceURL(classLoader, "flow.svg");
	assertNotNull(svg);
	assertEqualsIgnoreWhitespaces(Misc.streamToString(svg.openStream()), result);
}