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
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
|
#![cfg(feature = "ini")]
use serde_derive::Deserialize;
use std::path::PathBuf;
use config::{Config, File, FileFormat};
#[derive(Debug, Deserialize, PartialEq)]
struct Place {
name: String,
longitude: f64,
latitude: f64,
favorite: bool,
reviews: u64,
rating: Option<f32>,
}
#[derive(Debug, Deserialize, PartialEq)]
struct Settings {
debug: f64,
place: Place,
}
fn make() -> Config {
Config::builder()
.add_source(File::new("tests/Settings", FileFormat::Ini))
.build()
.unwrap()
}
#[test]
fn test_file() {
let c = make();
let s: Settings = c.try_deserialize().unwrap();
assert_eq!(
s,
Settings {
debug: 1.0,
place: Place {
name: String::from("Torre di Pisa"),
longitude: 43.722_498_5,
latitude: 10.397_052_2,
favorite: false,
reviews: 3866,
rating: Some(4.5),
},
}
);
}
#[test]
fn test_error_parse() {
let res = Config::builder()
.add_source(File::new("tests/Settings-invalid", FileFormat::Ini))
.build();
let path: PathBuf = ["tests", "Settings-invalid.ini"].iter().collect();
assert!(res.is_err());
assert_eq!(
res.unwrap_err().to_string(),
format!(
r#"3:1 expecting "[Some('='), Some(':')]" but found EOF. in {}"#,
path.display()
)
);
}
#[derive(Debug, Deserialize, PartialEq)]
enum EnumSettings {
Bar(String),
}
#[derive(Debug, Deserialize, PartialEq)]
struct StructSettings {
foo: String,
bar: String,
}
#[derive(Debug, Deserialize, PartialEq)]
#[allow(non_snake_case)]
struct CapSettings {
FOO: String,
}
#[test]
fn test_override_uppercase_value_for_struct() {
std::env::set_var("APP_FOO", "I HAVE BEEN OVERRIDDEN_WITH_UPPER_CASE");
let cfg = Config::builder()
.add_source(File::new("tests/Settings", FileFormat::Ini))
.add_source(config::Environment::with_prefix("APP").separator("_"))
.build()
.unwrap();
let cap_settings = cfg.clone().try_deserialize::<CapSettings>();
let lower_settings = cfg.try_deserialize::<StructSettings>().unwrap();
match cap_settings {
Ok(v) => {
// this assertion will ensure that the map has only lowercase keys
assert_ne!(v.FOO, "FOO should be overridden");
assert_eq!(
lower_settings.foo,
"I HAVE BEEN OVERRIDDEN_WITH_UPPER_CASE".to_string()
);
}
Err(e) => {
if e.to_string().contains("missing field `FOO`") {
assert_eq!(
lower_settings.foo,
"I HAVE BEEN OVERRIDDEN_WITH_UPPER_CASE".to_string()
);
} else {
panic!("{}", e);
}
}
}
}
#[test]
fn test_override_lowercase_value_for_struct() {
std::env::set_var("config_foo", "I have been overridden_with_lower_case");
let cfg = Config::builder()
.add_source(File::new("tests/Settings", FileFormat::Ini))
.add_source(config::Environment::with_prefix("config").separator("_"))
.build()
.unwrap();
let values: StructSettings = cfg.try_deserialize().unwrap();
assert_eq!(
values.foo,
"I have been overridden_with_lower_case".to_string()
);
assert_ne!(values.foo, "I am bar".to_string());
}
#[test]
fn test_override_uppercase_value_for_enums() {
std::env::set_var("APPS_BAR", "I HAVE BEEN OVERRIDDEN_WITH_UPPER_CASE");
let cfg = Config::builder()
.add_source(File::new("tests/Settings-enum-test", FileFormat::Ini))
.add_source(config::Environment::with_prefix("APPS").separator("_"))
.build()
.unwrap();
let val: EnumSettings = cfg.try_deserialize().unwrap();
assert_eq!(
val,
EnumSettings::Bar("I HAVE BEEN OVERRIDDEN_WITH_UPPER_CASE".to_string())
);
}
#[test]
fn test_override_lowercase_value_for_enums() {
std::env::set_var("test_bar", "I have been overridden_with_lower_case");
let cfg = Config::builder()
.add_source(File::new("tests/Settings-enum-test", FileFormat::Ini))
.add_source(config::Environment::with_prefix("test").separator("_"))
.build()
.unwrap();
let param: EnumSettings = cfg.try_deserialize().unwrap();
assert_eq!(
param,
EnumSettings::Bar("I have been overridden_with_lower_case".to_string())
);
}
|
