json_matcher/matchers/
boolean.rs

1use serde_json::Value;
2
3use crate::{JsonMatcher, JsonMatcherError};
4
5pub enum BooleanMatcher {
6    Exact(bool),
7    Any,
8}
9
10impl BooleanMatcher {
11    pub fn exact(value: bool) -> Self {
12        Self::Exact(value)
13    }
14
15    pub fn any() -> Self {
16        Self::Any
17    }
18}
19
20impl JsonMatcher for BooleanMatcher {
21    fn json_matches(&self, value: &Value) -> Vec<JsonMatcherError> {
22        match value {
23            Value::Bool(actual) => match self {
24                BooleanMatcher::Exact(expected) => {
25                    if *actual != *expected {
26                        vec![JsonMatcherError::at_root(format!(
27                            "Value is not {}",
28                            expected
29                        ))]
30                    } else {
31                        vec![]
32                    }
33                }
34                BooleanMatcher::Any => vec![],
35            },
36            _ => vec![JsonMatcherError::at_root("Value is not a boolean")],
37        }
38    }
39}
40
41impl JsonMatcher for bool {
42    fn json_matches(&self, value: &Value) -> Vec<JsonMatcherError> {
43        BooleanMatcher::exact(*self).json_matches(value)
44    }
45}
46
47#[cfg(test)]
48mod tests {
49    use crate::assert_jm;
50    use crate::test::catch_string_panic;
51
52    use super::*;
53
54    #[test]
55    fn test_boolean_matcher() {
56        let get_matcher = || BooleanMatcher::exact(true);
57        assert_jm!(Value::Bool(true), get_matcher());
58        // not a boolean
59        assert_eq!(
60            catch_string_panic(|| assert_jm!(Value::String("bloop".to_string()), get_matcher())),
61            r#"
62Json matcher failed:
63  - $: Value is not a boolean
64
65Actual:
66"bloop""#
67        );
68        // is boolean, but not expected value
69        assert_eq!(
70            catch_string_panic(|| assert_jm!(Value::Bool(false), get_matcher())),
71            r#"
72Json matcher failed:
73  - $: Value is not true
74
75Actual:
76false"#
77        );
78    }
79
80    #[test]
81    fn test_raw_implementations() {
82        assert_eq!(true.json_matches(&Value::Bool(true)), vec![]);
83        assert_eq!(
84            true.json_matches(&Value::Bool(false))
85                .into_iter()
86                .map(|x| x.to_string())
87                .collect::<String>(),
88            "$: Value is not true"
89        );
90    }
91}
json_matcher/matchers/boolean.rs

json_matcher/matchers/
boolean.rs
