enum-map 0.2.24

A map with C-like enum keys represented internally as an array
Documentation 
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

#![cfg(feature = "serde")]

#[macro_use]
extern crate enum_map;
#[macro_use]
extern crate serde;
extern crate serde_json;

use enum_map::EnumMap;

#[derive(Debug, EnumMap, PartialEq, Deserialize, Serialize)]
enum Example {
    A,
    B,
}

const JSON: &str = r#"{"A":5,"B":10}"#;

#[test]
fn json_serialization() {
    let map = enum_map! { Example::A => 5, Example::B => 10 };
    assert_eq!(serde_json::to_string(&map).unwrap(), String::from(JSON));
}

#[test]
fn json_deserialization() {
    let example: EnumMap<Example, i32> = serde_json::from_str(JSON).unwrap();
    assert_eq!(example, enum_map! { Example::A => 5, Example::B => 10 });
}

#[test]
fn json_invalid_deserialization() {
    let example: Result<EnumMap<Example, i32>, _> = serde_json::from_str(r"{}");
    assert!(example.is_err());
}

#[test]
fn json_invalid_key() {
    let example: Result<EnumMap<Example, i32>, _> =
        serde_json::from_str(r#"{"a": 5, "b": 10, "c": 6}"#);
    assert!(example.is_err());
}