#![cfg(feature = "toml")]
use serde_derive::Deserialize;
use std::collections::HashSet;
use config::{Config, File, FileFormat, Map, Value};
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 {
Config::builder()
.add_source(File::new("tests/Settings", FileFormat::Toml))
.build()
.unwrap()
}
#[test]
fn test_not_found() {
let c = make();
let res = c.get::<bool>("not_found");
assert!(res.is_err());
assert_eq!(
res.unwrap_err().to_string(),
"configuration property \"not_found\" not found".to_string()
);
}
#[test]
fn test_scalar() {
let c = make();
assert_eq!(c.get("debug").ok(), Some(true));
assert_eq!(c.get("production").ok(), Some(false));
}
#[test]
fn test_scalar_type_loose() {
let c = make();
assert_eq!(c.get("debug").ok(), Some(true));
assert_eq!(c.get("debug").ok(), Some("true".to_string()));
assert_eq!(c.get("debug").ok(), Some(1));
assert_eq!(c.get("debug").ok(), Some(1.0));
assert_eq!(c.get("debug_s").ok(), Some(true));
assert_eq!(c.get("debug_s").ok(), Some("true".to_string()));
assert_eq!(c.get("debug_s").ok(), Some(1));
assert_eq!(c.get("debug_s").ok(), Some(1.0));
assert_eq!(c.get("production").ok(), Some(false));
assert_eq!(c.get("production").ok(), Some("false".to_string()));
assert_eq!(c.get("production").ok(), Some(0));
assert_eq!(c.get("production").ok(), Some(0.0));
assert_eq!(c.get("production_s").ok(), Some(false));
assert_eq!(c.get("production_s").ok(), Some("false".to_string()));
assert_eq!(c.get("production_s").ok(), Some(0));
assert_eq!(c.get("production_s").ok(), Some(0.0));
}
#[test]
fn test_get_scalar_path() {
let c = make();
assert_eq!(c.get("place.favorite").ok(), Some(false));
assert_eq!(
c.get("place.creator.name").ok(),
Some("John Smith".to_string())
);
}
#[test]
fn test_get_scalar_path_subscript() {
let c = make();
assert_eq!(c.get("arr[2]").ok(), Some(3));
assert_eq!(c.get("items[0].name").ok(), Some("1".to_string()));
assert_eq!(c.get("items[1].name").ok(), Some("2".to_string()));
assert_eq!(c.get("items[-1].name").ok(), Some("2".to_string()));
assert_eq!(c.get("items[-2].name").ok(), Some("1".to_string()));
}
#[test]
fn test_map() {
let c = make();
let m: Map<String, Value> = c.get("place").unwrap();
assert_eq!(m.len(), 8);
assert_eq!(
m["name"].clone().into_string().unwrap(),
"Torre di Pisa".to_string()
);
assert_eq!(m["reviews"].clone().into_int().unwrap(), 3866);
}
#[test]
fn test_map_str() {
let c = make();
let m: Map<String, String> = c.get("place.creator").unwrap();
if cfg!(feature = "preserve_order") {
assert_eq!(
m.into_iter().collect::<Vec<(String, String)>>(),
vec![
("name".to_string(), "John Smith".to_string()),
("username".to_string(), "jsmith".to_string()),
("email".to_string(), "jsmith@localhost".to_string()),
]
);
} else {
assert_eq!(m.len(), 3);
assert_eq!(m["name"], "John Smith".to_string());
}
}
#[test]
fn test_map_struct() {
#[derive(Debug, Deserialize)]
struct Settings {
place: Map<String, Value>,
}
let c = make();
let s: Settings = c.try_deserialize().unwrap();
assert_eq!(s.place.len(), 8);
assert_eq!(
s.place["name"].clone().into_string().unwrap(),
"Torre di Pisa".to_string()
);
assert_eq!(s.place["reviews"].clone().into_int().unwrap(), 3866);
}
#[test]
fn test_file_struct() {
let c = make();
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.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);
}
#[test]
fn test_scalar_struct() {
let c = make();
let p: Place = c.get("place").unwrap();
assert_eq!(p.name, "Torre di Pisa");
assert!(p.longitude.approx_eq_ulps(&43.722_498_5, 2));
assert!(p.latitude.approx_eq_ulps(&10.397_052_2, 2));
assert!(!p.favorite);
assert_eq!(p.reviews, 3866);
assert_eq!(p.rating, Some(4.5));
assert_eq!(p.telephone, None);
}
#[test]
fn test_array_scalar() {
let c = make();
let arr: Vec<i64> = c.get("arr").unwrap();
assert_eq!(arr.len(), 10);
assert_eq!(arr[3], 4);
}
#[test]
fn test_struct_array() {
#[derive(Debug, Deserialize)]
struct Settings {
#[serde(rename = "arr")]
elements: Vec<String>,
}
let c = make();
let s: Settings = c.try_deserialize().unwrap();
assert_eq!(s.elements.len(), 10);
assert_eq!(s.elements[3], "4".to_string());
}
#[test]
fn test_enum() {
#[derive(Debug, Deserialize, PartialEq, Eq)]
#[serde(rename_all = "lowercase")]
enum Diode {
Off,
Brightness(i32),
Blinking(i32, i32),
Pattern { name: String, inifinite: bool },
}
#[derive(Debug, Deserialize)]
struct Settings {
diodes: Map<String, Diode>,
}
let c = make();
let s: Settings = c.try_deserialize().unwrap();
assert_eq!(s.diodes["green"], Diode::Off);
assert_eq!(s.diodes["red"], Diode::Brightness(100));
assert_eq!(s.diodes["blue"], Diode::Blinking(300, 700));
assert_eq!(
s.diodes["white"],
Diode::Pattern {
name: "christmas".into(),
inifinite: true,
}
);
}
#[test]
fn test_enum_key() {
#[derive(Debug, Deserialize, PartialEq, Eq, Hash)]
#[serde(rename_all = "lowercase")]
enum Quark {
Up,
Down,
Strange,
Charm,
Bottom,
Top,
}
#[derive(Debug, Deserialize)]
struct Settings {
proton: Map<Quark, usize>,
quarks: HashSet<Quark>,
}
let c = make();
let s: Settings = c.try_deserialize().unwrap();
assert_eq!(s.proton[&Quark::Up], 2);
assert_eq!(s.quarks.len(), 6);
}
#[test]
fn test_int_key() {
#[derive(Debug, Deserialize, PartialEq, Eq)]
struct Settings {
divisors: Map<u32, u32>,
}
let c = make();
let s: Settings = c.try_deserialize().unwrap();
assert_eq!(s.divisors[&4], 3);
assert_eq!(s.divisors.len(), 4);
}