@Test
  public void testMixedCatalog() {
    String[] catalogs = getTableEnv().listCatalogs();
    Assert.assertArrayEquals(
        Arrays.stream(catalogs).sorted().toArray(),
        Stream.of("default_catalog", catalogName).sorted().toArray());
  }
Test cases for mixed catalog factories, including:
CatalogFactoryOptions.MIXED_ICEBERG_IDENTIFIER, CatalogFactoryOptions.MIXED_HIVE_IDENTIFIER,
CatalogFactoryOptions.LEGACY_MIXED_IDENTIFIER
amoro-format-mixed/amoro-mixed-flink/amoro-mixed-flink-common/src/test/java/org/apache/amoro/flink/catalog/TestMixedCatalog.java