use_test_case/
lib.rs

1#![forbid(unsafe_code)]
2#![doc = include_str!("../README.md")]
3
4/// Named test case metadata.
5#[derive(Clone, Debug, Eq, Hash, PartialEq)]
6pub struct TestCase {
7    pub name: String,
8    pub description: Option<String>,
9}
10
11impl TestCase {
12    pub fn new(name: impl Into<String>) -> Self {
13        Self {
14            name: name.into(),
15            description: None,
16        }
17    }
18
19    pub fn with_description(name: impl Into<String>, description: impl Into<String>) -> Self {
20        Self {
21            name: name.into(),
22            description: Some(description.into()),
23        }
24    }
25
26    pub fn name(&self) -> &str {
27        &self.name
28    }
29
30    pub fn description(&self) -> Option<&str> {
31        self.description.as_deref()
32    }
33}
34
35/// Generic test case data without execution behavior.
36#[derive(Clone, Debug, Eq, Hash, PartialEq)]
37pub struct TestCaseData<I, O> {
38    pub name: String,
39    pub input: I,
40    pub expected: O,
41}
42
43impl<I, O> TestCaseData<I, O> {
44    pub fn new(name: impl Into<String>, input: I, expected: O) -> Self {
45        Self {
46            name: name.into(),
47            input,
48            expected,
49        }
50    }
51
52    pub fn name(&self) -> &str {
53        &self.name
54    }
55
56    pub const fn input(&self) -> &I {
57        &self.input
58    }
59
60    pub const fn expected(&self) -> &O {
61        &self.expected
62    }
63
64    pub fn into_parts(self) -> (String, I, O) {
65        (self.name, self.input, self.expected)
66    }
67}
68
69#[cfg(test)]
70mod tests {
71    use super::{TestCase, TestCaseData};
72
73    #[test]
74    fn creates_named_case() {
75        let case = TestCase::new("basic");
76
77        assert_eq!(case.name(), "basic");
78        assert_eq!(case.description(), None);
79    }
80
81    #[test]
82    fn creates_described_case() {
83        let case = TestCase::with_description("trim", "removes whitespace");
84
85        assert_eq!(case.name(), "trim");
86        assert_eq!(case.description(), Some("removes whitespace"));
87    }
88
89    #[test]
90    fn stores_case_data() {
91        let data = TestCaseData::new("length", "abc", 3);
92
93        assert_eq!(data.name(), "length");
94        assert_eq!(data.input(), &"abc");
95        assert_eq!(data.expected(), &3);
96        assert_eq!(data.into_parts(), ("length".to_string(), "abc", 3));
97    }
98}
use_test_case/lib.rs

use_test_case/
lib.rs
