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|
use askama::Template;
#[derive(Template)]
#[template(source = "{% let v = self.parse()? %}{{s}}={{v}}", ext = "txt")]
struct IntParserTemplate<'a> {
s: &'a str,
}
impl IntParserTemplate<'_> {
fn parse(&self) -> Result<i32, std::num::ParseIntError> {
self.s.parse()
}
}
#[test]
fn test_int_parser() {
let template = IntParserTemplate { s: "💯" };
assert!(matches!(template.render(), Err(askama::Error::Custom(_))));
assert_eq!(
format!("{}", &template.render().unwrap_err()),
"invalid digit found in string"
);
let template = IntParserTemplate { s: "100" };
assert_eq!(template.render().unwrap(), "100=100");
}
#[derive(Template)]
#[template(source = "{{ value()? }}", ext = "txt")]
struct FailFmt {
value: fn() -> Result<&'static str, std::fmt::Error>,
}
#[test]
fn fail_fmt() {
let template = FailFmt {
value: || Err(std::fmt::Error),
};
assert!(matches!(template.render(), Err(askama::Error::Custom(_))));
assert_eq!(
format!("{}", &template.render().unwrap_err()),
format!("{}", std::fmt::Error)
);
let template = FailFmt {
value: || Ok("hello world"),
};
assert_eq!(template.render().unwrap(), "hello world");
}
#[derive(Template)]
#[template(source = "{{ value()? }}", ext = "txt")]
struct FailStr {
value: fn() -> Result<&'static str, &'static str>,
}
#[test]
fn fail_str() {
let template = FailStr {
value: || Err("FAIL"),
};
assert!(matches!(template.render(), Err(askama::Error::Custom(_))));
assert_eq!(format!("{}", &template.render().unwrap_err()), "FAIL");
let template = FailStr {
value: || Ok("hello world"),
};
assert_eq!(template.render().unwrap(), "hello world");
}
|
