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extern crate config;
extern crate serde;
extern crate float_cmp;
#[macro_use]
extern crate serde_derive;
use config::*;
use float_cmp::ApproxEqUlps;
#[derive(Debug, Deserialize)]
struct Place {
name: String,
longitude: f64,
latitude: f64,
favorite: bool,
telephone: Option<String>,
reviews: u64,
rating: Option<f32>,
}
#[derive(Debug, Deserialize)]
struct Settings {
debug: f64,
production: Option<String>,
place: Place,
}
fn make() -> Config {
let mut c = Config::default();
c.merge(File::new("tests/Settings", FileFormat::Toml))
.unwrap();
c
}
#[test]
fn test_file_struct() {
let c = make();
// Deserialize the entire file as single struct
let s: Settings = c.deserialize().unwrap();
assert!(s.debug.approx_eq_ulps(&1.0, 2));
assert_eq!(s.production, Some("false".to_string()));
assert_eq!(s.place.name, "Torre di Pisa");
assert!(s.place.longitude.approx_eq_ulps(&43.7224985, 2));
assert!(s.place.latitude.approx_eq_ulps(&10.3970522, 2));
assert_eq!(s.place.favorite, false);
assert_eq!(s.place.reviews, 3866);
assert_eq!(s.place.rating, Some(4.5));
assert_eq!(s.place.telephone, None);
}
#[test]
fn test_scalar_struct() {
let c = make();
// Deserialize a scalar struct that has lots of different
// data types
let p: Place = c.get("place").unwrap();
assert_eq!(p.name, "Torre di Pisa");
assert!(p.longitude.approx_eq_ulps(&43.7224985, 2));
assert!(p.latitude.approx_eq_ulps(&10.3970522, 2));
assert_eq!(p.favorite, false);
assert_eq!(p.reviews, 3866);
assert_eq!(p.rating, Some(4.5));
assert_eq!(p.telephone, None);
}
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