jsonrs 1.4.0

Json parser
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
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

use core::panic;
use std::ops::Deref;

use json::{Json, JsonConfig, json};

#[test]
fn simple() {
    assert!(matches!(Json::deserialize("true"), Ok(Json::True)));
    assert!(matches!(Json::deserialize("false"), Ok(Json::False)));
    assert!(matches!(Json::deserialize("null"), Ok(Json::Null)));
    let string = "\"string\"".to_owned();
    match Json::deserialize(&string) {
        Ok(Json::String(s)) => assert_eq!(s.deref(), "string"),
        _ => panic!(),
    }
}

#[test]
fn nested() {
    let j = Json::deserialize(
        r#"{
        "array" : [1,2,+3, {
            "nested_1" : -1
        }]
    }"#,
    )
    .unwrap();

    let expected = json!(
        {
            "array" : [1,2,3, {
                "nested_1" : {-1}
            }]
        }
    );

    assert_eq!(expected, j);
}

#[test]
fn maximun_depth() {
    let mut s = "[12]".to_string();
    const DEPTH: u32 = 500;
    let conf = JsonConfig {
        max_depth: DEPTH,
        ..Default::default()
    };

    for _ in 0..DEPTH - 1 {
        s = format!("[{s}]");
    }

    assert!(Json::deserialize_with_config(&s, conf).is_ok());

    s = format!("[{s}]");

    let j = Json::deserialize_with_config(&s, conf);
    match j {
        Ok(_) => panic!("Expected error"),
        Err(err) => assert_eq!(err.get_message(), "Max depth reached"),
    }
}

#[test]
fn index_obj() {
    let mut json = json!({
        "a": 1,
        "b": 2,
        "c": 3,
        "d": 4,
        "e": 5
    });

    assert_eq!(json["a"].expect_number(), 1.0);
    assert_eq!(json["b"].expect_number(), 2.0);
    assert_eq!(json["c"].expect_number(), 3.0);
    assert_eq!(json["d"].expect_number(), 4.0);
    assert_eq!(json["e"].expect_number(), 5.0);

    for e in ["a", "b", "c", "d", "e"] {
        json[e] += 1;
    }

    assert_eq!(json["a"].expect_number(), 2.0);
    assert_eq!(json["b"].expect_number(), 3.0);
    assert_eq!(json["c"].expect_number(), 4.0);
    assert_eq!(json["d"].expect_number(), 5.0);
    assert_eq!(json["e"].expect_number(), 6.0);
}

#[test]
#[should_panic(expected = "Attemp to index a json element that doesn't contain the given key: 'h'")]
fn index_obj_panic() {
    let json = json!({
        "a": 1,
        "b": 2
    });
    let _ = &json["h"];
}

#[test]
fn index_arr() {
    let mut json = json!([0, 1, 2, 3, 4, 5]);

    for i in 0..6 {
        assert_eq!(json[i].expect_number(), i as f64);
        json[i] *= 2;
        assert_eq!(json[i].expect_number(), (i * 2) as f64);
    }
}

#[test]
#[should_panic(expected = "Attemp to index a json element that can't be indexed by 12")]
fn index_arr_panic() {
    let json = json!({
        "a": 1,
        "b": 2
    });
    let _ = &json[12];
}

#[test]
fn macro_test() {
    fn foo() -> u16 {
        12
    }

    let a = 1.0;
    let json = json! {{
        "a + 2" : { a + 2.0 },
        "foo()" : { foo() },
        "nest" : [
            { (1 + 1) * 2 },
            { 2 },
        ]
    }};

    let obj = json.expect_object();
    assert_eq!(obj["a + 2"].expect_number(), a + 2.0);
    assert_eq!(obj["foo()"].expect_number(), foo() as f64);

    let nest = &obj["nest"];
    assert_eq!(nest[0].expect_number(), 4.0);
    assert_eq!(nest[1].expect_number(), 2.0);
}