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use std::fmt;
use error_chain::bail;
use serde_derive::{Deserialize, Serialize};
use shrinkwraprs::Shrinkwrap;
use crate::errors::*;
use crate::model::route::Route;
use crate::model::validation::Validate;
#[derive(Shrinkwrap, Hash, Debug, Clone, PartialEq, Ord, PartialOrd, Eq, Default, Serialize, Deserialize)]
pub struct Name(String);
impl Name {
pub fn empty(&self) -> bool {
self.is_empty()
}
}
pub trait HasName {
fn name(&self) -> &Name;
fn alias(&self) -> &Name;
}
impl Validate for Name {
fn validate(&self) -> Result<()> {
if self.parse::<usize>().is_ok() {
bail!(
"Name '{}' cannot be a number, they are reserved for array indexes",
self
);
}
Ok(())
}
}
impl fmt::Display for Name {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{}", self.0)
}
}
impl From<&str> for Name {
fn from(string: &str) -> Self {
Name(string.to_string())
}
}
impl From<String> for Name {
fn from(string: String) -> Self {
Name(string)
}
}
impl From<&String> for Name {
fn from(string: &String) -> Self {
Name(string.to_string())
}
}
impl From<&Name> for Name {
fn from(string: &Name) -> Self {
string.clone()
}
}
impl From<&Route> for Name {
fn from(route: &Route) -> Self {
Name::from(&route.to_string())
}
}
#[cfg(test)]
mod test {
use crate::model::validation::Validate;
use super::Name;
#[test]
fn validates_when_empty() {
let name = Name::default();
assert!(name.validate().is_ok());
}
#[test]
fn number_does_not_validate() {
let name = Name::from("123");
if name.validate().is_ok() {
panic!();
}
}
#[test]
fn validates_when_has_value() {
let name: Name = Name::from("test");
name.validate().expect("Name did not validate as expected");
}
}