yaml_schema/
engine.rs

1use saphyr::LoadableYamlNode;
2
3use crate::Error;
4use crate::Result;
5use crate::RootSchema;
6use crate::Validator as _;
7use crate::YamlSchema;
8use crate::validation::Context;
9
10#[derive(Debug)]
11pub struct Engine<'a> {
12    pub root_schema: &'a RootSchema<'a>,
13    pub context: Context<'a>,
14}
15
16impl<'a> Engine<'a> {
17    pub fn new(root_schema: &'a RootSchema, context: Context<'a>) -> Self {
18        Engine {
19            root_schema,
20            context,
21        }
22    }
23
24    pub fn evaluate<'b: 'a>(
25        root_schema: &'b RootSchema,
26        value: &str,
27        fail_fast: bool,
28    ) -> Result<Context<'b>> {
29        let context = Context::with_root_schema(root_schema, fail_fast);
30        let engine = Engine::new(root_schema, context);
31        let docs = saphyr::MarkedYaml::load_from_str(value).map_err(Error::YamlParsingError)?;
32        match docs.first() {
33            Some(yaml) => {
34                engine.root_schema.validate(&engine.context, yaml)?;
35            }
36            None => match &engine.root_schema.schema {
37                YamlSchema::Empty | YamlSchema::BooleanLiteral(true) => (),
38                _ => engine
39                    .context
40                    .add_doc_error("Empty YAML document is not allowed"),
41            },
42        }
43        Ok(engine.context)
44    }
45}
46
47#[cfg(test)]
48mod tests {
49    use super::*;
50    use crate::YamlSchema;
51
52    #[test]
53    fn test_engine_empty_schema() {
54        let root_schema = RootSchema::new(YamlSchema::Empty);
55        let context = Engine::evaluate(&root_schema, "", false).unwrap();
56        assert!(!context.has_errors());
57    }
58
59    #[test]
60    fn test_engine_boolean_literal_true() {
61        let root_schema = RootSchema::new(YamlSchema::BooleanLiteral(true));
62        let context = Engine::evaluate(&root_schema, "", false).unwrap();
63        assert!(!context.has_errors());
64    }
65
66    #[test]
67    fn test_engine_boolean_literal_false() {
68        let root_schema = RootSchema::new(YamlSchema::BooleanLiteral(false));
69        let context = Engine::evaluate(&root_schema, "", false).unwrap();
70        assert!(context.has_errors());
71    }
72}
yaml_schema/engine.rs

yaml_schema/
engine.rs
