asserting/boolean/
mod.rs

1//! Implementation of assertions for values of type `bool`.
2
3use crate::assertions::AssertBoolean;
4use crate::colored::{mark_missing, mark_unexpected};
5use crate::expectations::{is_false, is_true, IsFalse, IsTrue};
6use crate::spec::{DiffFormat, Expectation, Expression, FailingStrategy, Invertible, Spec};
7use crate::std::format;
8use crate::std::string::String;
9
10impl<R> AssertBoolean for Spec<'_, bool, R>
11where
12    R: FailingStrategy,
13{
14    fn is_true(self) -> Self {
15        self.expecting(is_true())
16    }
17
18    fn is_false(self) -> Self {
19        self.expecting(is_false())
20    }
21}
22
23impl Expectation<bool> for IsTrue {
24    fn test(&mut self, subject: &bool) -> bool {
25        *subject
26    }
27
28    fn message(
29        &self,
30        expression: &Expression<'_>,
31        actual: &bool,
32        inverted: bool,
33        format: &DiffFormat,
34    ) -> String {
35        let marked_actual = mark_unexpected(&actual, format);
36        let marked_expected = mark_missing(&!inverted, format);
37        format!(
38            "expected {expression} to be {:?}\n   but was: {marked_actual}\n  expected: {marked_expected}",
39            true
40        )
41    }
42}
43
44impl Invertible for IsTrue {}
45
46impl Expectation<bool> for IsFalse {
47    fn test(&mut self, subject: &bool) -> bool {
48        !*subject
49    }
50
51    fn message(
52        &self,
53        expression: &Expression<'_>,
54        actual: &bool,
55        inverted: bool,
56        format: &DiffFormat,
57    ) -> String {
58        let marked_actual = mark_unexpected(actual, format);
59        let marked_expected = mark_missing(&inverted, format);
60        format!(
61            "expected {expression} to be {:?}\n   but was: {marked_actual}\n  expected: {marked_expected}",
62            false
63        )
64    }
65}
66
67impl Invertible for IsFalse {}
68
69#[cfg(test)]
70mod tests;
asserting/boolean/mod.rs

asserting/boolean/
mod.rs
