@Test
    public void testLookupTopic() throws Exception {
        final String topicPath =
                DEFAULT_TENANT + InlongConstants.SLASH + DEFAULT_NAMESPACE + InlongConstants.SLASH + "testLookupTopic";
        PulsarUtils.createNonPartitionedTopic(client, pulsarCluster, topicPath);
        Thread.sleep(500);
        String actual = PulsarUtils.lookupTopic(client, pulsarCluster, topicPath);
        assertNotNull(actual);
    }
Test cases for {@link PulsarUtils#lookupTopic(RestTemplate, PulsarClusterInfo, String)}.

@throws Exception
inlong-manager/manager-service/src/test/java/org/apache/inlong/manager/service/queue/PulsarUtilsTest.java