1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
|
#![cfg(feature = "json")]
extern crate config;
extern crate float_cmp;
extern crate serde;
#[macro_use]
extern crate serde_derive;
use std::path::PathBuf;
use config::*;
use float_cmp::ApproxEqUlps;
#[derive(Debug, Deserialize)]
struct Place {
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 {
Config::builder()
.add_source(File::new("tests/Settings", FileFormat::Json))
.build()
.unwrap()
}
#[test]
fn test_file() {
let c = make();
// Deserialize the entire file as single struct
let s: Settings = c.try_into().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);
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 res = Config::builder()
.add_source(File::new("tests/Settings-invalid", FileFormat::Json))
.build();
let path_with_extension: PathBuf = ["tests", "Settings-invalid.json"].iter().collect();
assert!(res.is_err());
assert_eq!(
res.unwrap_err().to_string(),
format!(
"expected `:` at line 4 column 1 in {}",
path_with_extension.display()
)
);
}
#[test]
fn test_json_vec() {
let c = Config::builder()
.add_source(File::from_str(
r#"
{
"WASTE": ["example_dir1", "example_dir2"]
}
"#,
FileFormat::Json,
))
.build()
.unwrap();
let v = c.get_array("WASTE").unwrap();
let mut vi = v.into_iter();
assert_eq!(vi.next().unwrap().into_string().unwrap(), "example_dir1");
assert_eq!(vi.next().unwrap().into_string().unwrap(), "example_dir2");
assert!(vi.next().is_none());
}
|
