  @Test
  public void getSpan_should_retrieve_a_span_from_the_currentContext(TestContext ctx) {

    Span span = tracer.buildSpan("test").start();
    vertx.runOnContext(ignored -> {
      assertNull(OpenTracingUtil.getSpan());
      Context context = Vertx.currentContext();
      context.putLocal(ACTIVE_SPAN, span);

      assertSame(span, OpenTracingUtil.getSpan());
    });
  }