source: class SwaggerRouterTest {
  
      private static Vertx vertx;
      private static EventBus eventBus;
      private static JsonArray definitions;
  
      @Test(expected = IllegalArgumentException.class)
      public void testPathParameterNameStartsWithNumber() {
  
target:         String definition = definitions.getJsonObject(3).encode();
          Swagger swagger = new SwaggerParser().parse(definition);
          SwaggerRouter.swaggerRouter(Router.router(vertx), swagger, eventBus);
      }
  
  }