valico/json_schema/keywords/
enum_.rs

1use serde_json::{Value};
2
3use super::super::schema;
4use super::super::validators;
5
6#[allow(missing_copy_implementations)]
7pub struct Enum;
8impl super::Keyword for Enum {
9    fn compile(&self, def: &Value, ctx: &schema::WalkContext) -> super::KeywordResult {
10        let enum_ = keyword_key_exists!(def, "enum");
11
12        if enum_.is_array() {
13            let enum_ = enum_.as_array().unwrap();
14
15            if enum_.len() == 0 {
16                return Err(schema::SchemaError::Malformed {
17                    path: ctx.fragment.join("/"),
18                    detail: "This array MUST have at least one element.".to_string()
19                })
20            }
21
22            Ok(Some(Box::new(validators::Enum {
23                items: enum_.clone()
24            })))
25        } else {
26            Err(schema::SchemaError::Malformed {
27                path: ctx.fragment.join("/"),
28                detail: "The value of this keyword MUST be an array.".to_string()
29            })
30        }
31    }
32}
33
34#[cfg(test)] use super::super::scope;
35#[cfg(test)] use jsonway;
36#[cfg(test)] use super::super::builder;
37#[cfg(test)] use serde_json::to_value;
38
39#[test]
40fn validate() {
41    let mut scope = scope::Scope::new();
42    let schema = scope.compile_and_return(builder::schema(|s| {
43        s.enum_(|items| {
44            items.push("prop1".to_string());
45            items.push("prop2".to_string());
46        })
47    }).into_json(), true).ok().unwrap();
48
49    assert_eq!(schema.validate(&to_value(&"prop1").unwrap()).is_valid(), true);
50    assert_eq!(schema.validate(&to_value(&"prop2").unwrap()).is_valid(), true);
51    assert_eq!(schema.validate(&to_value(&"prop3").unwrap()).is_valid(), false);
52    assert_eq!(schema.validate(&to_value(&1).unwrap()).is_valid(), false);
53}
54
55#[test]
56fn malformed() {
57    let mut scope = scope::Scope::new();
58
59    assert!(scope.compile_and_return(jsonway::object(|schema| {
60        schema.array("enum", |_| {});
61    }).unwrap(), true).is_err());
62
63    assert!(scope.compile_and_return(jsonway::object(|schema| {
64        schema.object("enum", |_| {});
65    }).unwrap(), true).is_err());
66}