1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
use assert_matches2::assert_matches;
#[test]
fn no_error() {
#[derive(Debug)]
struct Foo {
bar: Bar,
}
#[derive(Debug)]
enum Bar {
V1(u32),
V2 { field: String },
}
let var = Foo { bar: Bar::V1(10) };
assert_matches!(var, Foo { bar: ref r @ Bar::V1(int) });
assert_matches!(r, Bar::V1(_));
assert_eq!(int, 10);
let var = Foo { bar: Bar::V2 { field: "test".to_owned() } };
assert_matches!(var, Foo { bar: Bar::V2 { field: rename } });
assert_eq!(rename, "test");
}
#[test]
#[should_panic(expected = "\
match assertion failed
pattern: `None`
value: `Some(8)`\
")]
fn default_error() {
assert_matches!(Some(8u8), None);
}
#[test]
#[should_panic(expected = "\
match assertion failed: custom error message
pattern: `Some(8u8)`
value: `None`\
")]
fn custom_error() {
let msg = "message";
assert_matches!(None, Some(8u8), "custom error {msg}");
}
|
