Function assert_description_length

pub fn assert_description_length(
    description: &Option<String>,
) -> Result<(), String>

Validates the length of a description field in entities such as documents or assets.

Ensures that the description does not exceed 1024 characters. If the description exceeds this limit, the function returns an error message.

Parameters

• description: An optional reference to a String that represents the description field of an entity. If the description is None, the function considers it valid and does not perform any length checks.

Returns

• Ok(()): If the description is valid (either None or within the length limit).
• Err(String): If the description exceeds 1024 characters, containing an error message.

Examples

let valid_description = Some(String::from("This is a valid description."));
assert_eq!(assert_description_length(&valid_description), Ok(()));

let invalid_description = Some(String::from("a".repeat(1025)));
assert_eq!(
    assert_description_length(&invalid_description),
    Err(String::from("Description field should not contains more than 1024 characters."))
);

let none_description: Option<String> = None;
assert_eq!(assert_description_length(&none_description), Ok(()));