@Test
public void testGetTagsWithNumber() throws Exception {

    SofaTracerSpan span = (SofaTracerSpan) this.sofaTracer.buildSpan("testGetTagsWithNumber")
        .withStartTimestamp(111).start();
    span.setTag("key", 100);
    span.setTag("key1", 2.22);
    assertTrue(span.getTagsWithNumber().containsKey("key")
               && span.getTagsWithNumber().containsValue(100));
    assertTrue(span.getTagsWithNumber().containsKey("key1")
               && span.getTagsWithNumber().containsValue(2.22));
}