@Test
    public void testGetNamespaces() throws Exception {
        List<String> namespaces = PulsarUtils.getNamespaces(client, pulsarCluster, DEFAULT_TENANT);
        assertNotNull(namespaces);
    }
Test cases for {@link PulsarUtils#getNamespaces(RestTemplate, PulsarClusterInfo, String)}.

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