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#![cfg(feature = "toml")]
use std::path::PathBuf;
use serde_derive::Deserialize;
use config::{Config, ConfigError, File, FileFormat, Map, Value};
fn make() -> Config {
let mut c = Config::default();
c.merge(File::new("tests/Settings", FileFormat::Toml))
.unwrap();
c
}
#[test]
fn test_error_type() {
let c = make();
let res = c.get::<bool>("boolean_s_parse");
let path: PathBuf = ["tests", "Settings.toml"].iter().collect();
assert!(res.is_err());
assert_eq!(
res.unwrap_err().to_string(),
format!(
"invalid type: string \"fals\", expected a boolean for key `boolean_s_parse` in {}",
path.display()
)
);
}
#[test]
fn test_error_type_detached() {
let c = make();
let value = c.get::<Value>("boolean_s_parse").unwrap();
let res = value.try_deserialize::<bool>();
assert!(res.is_err());
assert_eq!(
res.unwrap_err().to_string(),
"invalid type: string \"fals\", expected a boolean".to_string()
);
}
#[test]
fn test_error_enum_de() {
#[derive(Debug, Deserialize, PartialEq, Eq)]
enum Diode {
Off,
Brightness(i32),
Blinking(i32, i32),
Pattern { name: String, inifinite: bool },
}
let on_v: Value = "on".into();
let on_d = on_v.try_deserialize::<Diode>();
assert_eq!(
on_d.unwrap_err().to_string(),
"enum Diode does not have variant constructor on".to_string()
);
let array_v: Value = vec![100, 100].into();
let array_d = array_v.try_deserialize::<Diode>();
assert_eq!(
array_d.unwrap_err().to_string(),
"value of enum Diode should be represented by either string or table with exactly one key"
);
let confused_v: Value = [
("Brightness".to_string(), 100.into()),
("Blinking".to_string(), vec![300, 700].into()),
]
.iter()
.cloned()
.collect::<Map<String, Value>>()
.into();
let confused_d = confused_v.try_deserialize::<Diode>();
assert_eq!(
confused_d.unwrap_err().to_string(),
"value of enum Diode should be represented by either string or table with exactly one key"
);
}
#[test]
fn error_with_path() {
#[derive(Debug, Deserialize)]
struct Inner {
#[allow(dead_code)]
test: i32,
}
#[derive(Debug, Deserialize)]
struct Outer {
#[allow(dead_code)]
inner: Inner,
}
const CFG: &str = r#"
inner:
test: ABC
"#;
let mut cfg = Config::default();
cfg.merge(File::from_str(CFG, FileFormat::Yaml)).unwrap();
let e = cfg.try_deserialize::<Outer>().unwrap_err();
if let ConfigError::Type {
key: Some(path), ..
} = e
{
assert_eq!(path, "inner.test");
} else {
panic!("Wrong error {:?}", e);
}
}
|
