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#![cfg(feature = "ron")]
use serde_derive::Deserialize;
use std::path::PathBuf;
use config::{Config, File, FileFormat, Map, Value};
use float_cmp::ApproxEqUlps;
#[derive(Debug, Deserialize)]
struct Place {
initials: (char, char),
name: String,
longitude: f64,
latitude: f64,
favorite: bool,
telephone: Option<String>,
reviews: u64,
creator: Map<String, Value>,
rating: Option<f32>,
}
#[derive(Debug, Deserialize)]
struct Settings {
debug: f64,
production: Option<String>,
place: Place,
#[serde(rename = "arr")]
elements: Vec<String>,
}
fn make() -> Config {
let mut c = Config::default();
c.merge(File::new("tests/Settings", FileFormat::Ron))
.unwrap();
c
}
#[test]
fn test_file() {
let c = make();
// Deserialize the entire file as single struct
let s: Settings = c.try_deserialize().unwrap();
assert!(s.debug.approx_eq_ulps(&1.0, 2));
assert_eq!(s.production, Some("false".to_string()));
assert_eq!(s.place.initials, ('T', 'P'));
assert_eq!(s.place.name, "Torre di Pisa");
assert!(s.place.longitude.approx_eq_ulps(&43.722_498_5, 2));
assert!(s.place.latitude.approx_eq_ulps(&10.397_052_2, 2));
assert!(!s.place.favorite);
assert_eq!(s.place.reviews, 3866);
assert_eq!(s.place.rating, Some(4.5));
assert_eq!(s.place.telephone, None);
assert_eq!(s.elements.len(), 10);
assert_eq!(s.elements[3], "4".to_string());
if cfg!(feature = "preserve_order") {
assert_eq!(
s.place
.creator
.into_iter()
.collect::<Vec<(String, config::Value)>>(),
vec![
("name".to_string(), "John Smith".into()),
("username".into(), "jsmith".into()),
("email".into(), "jsmith@localhost".into()),
]
);
} else {
assert_eq!(
s.place.creator["name"].clone().into_string().unwrap(),
"John Smith".to_string()
);
}
}
#[test]
fn test_error_parse() {
let mut c = Config::default();
let res = c.merge(File::new("tests/Settings-invalid", FileFormat::Ron));
let path_with_extension: PathBuf = ["tests", "Settings-invalid.ron"].iter().collect();
assert!(res.is_err());
assert_eq!(
res.unwrap_err().to_string(),
format!("4:1: Expected colon in {}", path_with_extension.display())
);
}
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