// Assert error message is in the result
        assertTrue(result.contains("Delete operation failed"));
        assertTrue(result.endsWith("\n"));
    }

    @Test
    public void test_execute_withCustomFieldName() {
        // Configure custom expires field name
        expiresFieldName = "custom_expires_field";

        // Re-register FessConfig with updated field name
        fessConfig = new TestFessConfig() {

Shinsuke Sugaya <******@****.***> 1773442886 +0900

Shinsuke Sugaya <******@****.***> 1773442886 +0900

Shinsuke Sugaya <******@****.***> 1773565718 +0900