@Test
  public void testCreateNamespaceWithOwnership() throws Exception {
    createNamespaceAndVerifyOwnership(
        "default_ownership_1",
        ImmutableMap.of(),
        UserGroupInformation.getCurrentUser().getShortUserName(),
        PrincipalType.USER);

    createNamespaceAndVerifyOwnership(
        "default_ownership_2",
        ImmutableMap.of(
            "non_owner_prop1", "value1",
            "non_owner_prop2", "value2"),
        UserGroupInformation.getCurrentUser().getShortUserName(),
        PrincipalType.USER);

    createNamespaceAndVerifyOwnership(
        "individual_ownership_1",
        ImmutableMap.of(
            HiveCatalog.HMS_DB_OWNER,
            "apache",
            HiveCatalog.HMS_DB_OWNER_TYPE,
            PrincipalType.USER.name()),
        "apache",
        PrincipalType.USER);

    createNamespaceAndVerifyOwnership(
        "individual_ownership_2",
        ImmutableMap.of(HiveCatalog.HMS_DB_OWNER, "someone"),
        "someone",
        PrincipalType.USER);

    createNamespaceAndVerifyOwnership(
        "group_ownership",
        ImmutableMap.of(
            HiveCatalog.HMS_DB_OWNER,
            "iceberg",
            HiveCatalog.HMS_DB_OWNER_TYPE,
            PrincipalType.GROUP.name()),
        "iceberg",
        PrincipalType.GROUP);

    assertThatThrownBy(
        () ->
            createNamespaceAndVerifyOwnership(
                "create_with_owner_type_alone",
                ImmutableMap.of(HiveCatalog.HMS_DB_OWNER_TYPE, PrincipalType.USER.name()),
                "no_post_create_expectation_due_to_exception_thrown",
                null))
        .isInstanceOf(IllegalArgumentException.class)
        .hasMessage(
            String.format(
                "Create namespace setting %s without setting %s is not allowed",
                HiveCatalog.HMS_DB_OWNER_TYPE, HiveCatalog.HMS_DB_OWNER));

    assertThatThrownBy(
        () ->
            createNamespaceAndVerifyOwnership(
                "create_with_invalid_owner_type",
                ImmutableMap.of(
                    HiveCatalog.HMS_DB_OWNER, "iceberg",
                    HiveCatalog.HMS_DB_OWNER_TYPE, "invalidOwnerType"),
                "no_post_create_expectation_due_to_exception_thrown",
                null))
        .isInstanceOf(IllegalArgumentException.class)
        .hasMessageStartingWith("No enum constant " + PrincipalType.class.getCanonicalName());
  }
Run all the tests from abstract of {@link CatalogTests} with few specific tests related to HIVE.
iceberg/iceberg-catalog/src/test/java/org/apache/iceberg/hive/TestHiveCatalog.java