assert_rs/assertion/
unary.rs

1use super::{AssertInfo, Assertion, Debug, Display};
2
3/// An assertion about an object `this`.
4#[must_use = "assertions do not fire unless returned from a test"]
5pub struct UnaryAssertion<T> {
6    this: T,
7    test_result: bool,
8    test_repr: &'static str,
9    info: AssertInfo,
10}
11
12impl<T> Display for UnaryAssertion<T>
13where
14    T: Debug,
15{
16    fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
17        let Self {
18            this,
19            test_result: _,
20            test_repr,
21            info: AssertInfo { file, line, column },
22        } = self;
23
24        write!(
25            f,
26            "assertion starting at {file}:{line}:{column} failed: `{test_repr}`\nthis: {this:?}"
27        )
28    }
29}
30
31impl<T> Debug for UnaryAssertion<T>
32where
33    T: Debug,
34{
35    fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
36        Display::fmt(self, f)
37    }
38}
39
40impl<T> UnaryAssertion<T> {
41    pub(crate) const fn new(
42        this: T,
43        test_result: bool,
44        test_repr: &'static str,
45        info: AssertInfo,
46    ) -> Self {
47        Self {
48            this,
49            test_result,
50            test_repr,
51            info,
52        }
53    }
54}
55
56#[cfg(feature = "std")]
57impl<T> std::process::Termination for UnaryAssertion<T>
58where
59    T: Debug,
60{
61    fn report(self) -> std::process::ExitCode {
62        if self.test() {
63            std::process::ExitCode::SUCCESS
64        } else {
65            println!("{self}");
66            std::process::ExitCode::FAILURE
67        }
68    }
69}
70
71impl<T> Assertion for UnaryAssertion<T>
72where
73    T: Debug,
74{
75    fn test(&self) -> bool {
76        self.test_result
77    }
78}
assert_rs/assertion/unary.rs

assert_rs/assertion/
unary.rs
