messy_json 0.2.2

JSON Parser for dynamically structured documents
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
146

use super::*;

fn run_test(schema: &MessyJson, value: &str, expected: MessyJsonValue) {
    let mut deserializer = serde_json::Deserializer::from_str(value);
    let parsed: MessyJsonValueContainer = schema
        .builder(MessyJsonSettings::default())
        .deserialize(&mut deserializer)
        .unwrap();
    assert_eq!(
        matches!(parsed.inner(), MessyJsonValue::Obj(_)),
        true,
        "The root should be an object"
    );
    match parsed.inner() {
        MessyJsonValue::Obj(obj) => {
            assert_eq!(
                obj.len(),
                1,
                "The root object should only contain a single key"
            );
            assert_eq!(
                obj.contains_key("hello"),
                true,
                "The hello key should be present"
            );
            match obj.get("hello").unwrap() {
                MessyJsonValue::Obj(obj) => {
                    assert_eq!(
                        obj.len(),
                        1,
                        "The root object should only contain a single key"
                    );
                    assert_eq!(
                        obj.contains_key("the"),
                        true,
                        "The hello key should be present"
                    );
                    assert_eq!(
                        obj.get("the").unwrap(),
                        &expected,
                        "The 'the' key should be '{:#?}'",
                        expected
                    );
                }
                _ => panic!("..."),
            };
        }
        _ => panic!("..."),
    };
}

#[test]
fn simple() {
    let nested_string = MessyJson::from(MessyJsonInner::String(MessyJsonScalar::new(false)));
    let nested_schema = MessyJson::from(MessyJsonInner::Obj(MessyJsonObject::from(
        MessyJsonObjectInner::new(
            vec![(gen_key("the"), nested_string)].into_iter().collect(),
            false,
        ),
    )));
    let schema = MessyJson::from(MessyJsonInner::Obj(MessyJsonObject::from(
        MessyJsonObjectInner::new(
            vec![(gen_key("hello"), nested_schema)]
                .into_iter()
                .collect(),
            false,
        ),
    )));
    let value = r#"
	{
		"hello": {
			"the": "world"
		}
	}
	"#;

    run_test(
        &schema,
        value,
        MessyJsonValue::String(Cow::Borrowed("world")),
    );
}

#[test]
fn wrong_key() {
    let nested_string = MessyJson::from(MessyJsonInner::String(MessyJsonScalar::new(false)));
    let nested_schema = MessyJson::from(MessyJsonInner::Obj(MessyJsonObject::from(
        MessyJsonObjectInner::new(
            vec![(gen_key("the"), nested_string)].into_iter().collect(),
            false,
        ),
    )));
    let schema = MessyJson::from(MessyJsonInner::Obj(MessyJsonObject::from(
        MessyJsonObjectInner::new(
            vec![(gen_key("hello"), nested_schema)]
                .into_iter()
                .collect(),
            false,
        ),
    )));
    let value = r#"
	{
		"hello": {
			"hola": "world"
		}
	}
	"#;

    let mut deserializer = serde_json::Deserializer::from_str(value);
    schema
        .builder(MessyJsonSettings::default())
        .deserialize(&mut deserializer)
        .expect_err("to fail because of wrong key");
}

#[test]
fn wrong_value_type() {
    let nested_string = MessyJson::from(MessyJsonInner::String(MessyJsonScalar::new(false)));
    let nested_schema = MessyJson::from(MessyJsonInner::Obj(MessyJsonObject::from(
        MessyJsonObjectInner::new(
            vec![(gen_key("the"), nested_string)].into_iter().collect(),
            false,
        ),
    )));
    let schema = MessyJson::from(MessyJsonInner::Obj(MessyJsonObject::from(
        MessyJsonObjectInner::new(
            vec![(gen_key("hello"), nested_schema)]
                .into_iter()
                .collect(),
            false,
        ),
    )));
    let value = r#"
	{
		"hello": {
			"the": 61
		}
	}
	"#;

    let mut deserializer = serde_json::Deserializer::from_str(value);
    schema
        .builder(MessyJsonSettings::default())
        .deserialize(&mut deserializer)
        .expect_err("to fail because of wrong value");
}