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#[macro_use]
extern crate pretty_assertions;
#[macro_use]
extern crate derive_builder;
use std::num::ParseIntError;
#[derive(Debug, PartialEq, Default, Builder, Clone)]
pub struct Lorem {
#[builder(field(ty = "Option<usize>", build = self.ipsum.unwrap_or(42) + 1))]
ipsum: usize,
#[builder(setter(into), field(ty = "String", build = self.dolor.parse()?))]
dolor: u32,
}
impl From<ParseIntError> for LoremBuilderError {
fn from(e: ParseIntError) -> LoremBuilderError {
LoremBuilderError::ValidationError(e.to_string())
}
}
#[test]
fn custom_fields() {
let x = LoremBuilder::default().dolor("7").build().unwrap();
assert_eq!(
x,
Lorem {
ipsum: 43,
dolor: 7,
}
);
let x = LoremBuilder::default()
.ipsum(Some(12))
.dolor("66")
.build()
.unwrap();
assert_eq!(
x,
Lorem {
ipsum: 13,
dolor: 66,
}
);
let x = LoremBuilder::default().build().unwrap_err().to_string();
assert_eq!(x, "cannot parse integer from empty string");
}
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