1 #![warn(
2 clippy::default_trait_access,
3 clippy::dbg_macro,
4 clippy::print_stdout,
5 clippy::unimplemented,
6 clippy::use_self,
7 missing_copy_implementations,
8 missing_docs,
9 non_snake_case,
10 non_upper_case_globals,
11 rust_2018_idioms,
12 unreachable_pub
13 )]
14
15 use enum_as_inner::EnumAsInner;
16
17 pub mod name_collisions {
18 #![allow(dead_code, missing_copy_implementations, missing_docs)]
19 pub struct Option;
20 pub struct Some;
21 pub struct None;
22 pub struct Result;
23 pub struct Ok;
24 pub struct Err;
25 }
26 #[allow(unused_imports)]
27 use name_collisions::*;
28
29 #[derive(Debug, EnumAsInner)]
30 enum ManyVariants {
31 One(u32),
32 Two(u32, i32),
33 Three(bool, u32, i64),
34 }
35
36 #[test]
test_one_unnamed()37 fn test_one_unnamed() {
38 let mut many = ManyVariants::One(1);
39
40 assert!(many.is_one());
41 assert!(!many.is_two());
42 assert!(!many.is_three());
43
44 assert!(many.as_one().is_some());
45 assert!(many.as_two().is_none());
46 assert!(many.as_three().is_none());
47
48 assert!(many.as_one_mut().is_some());
49 assert!(many.as_two_mut().is_none());
50 assert!(many.as_three_mut().is_none());
51
52 assert_eq!(*many.as_one().unwrap(), 1_u32);
53 assert_eq!(*many.as_one_mut().unwrap(), 1_u32);
54 assert_eq!(many.into_one().unwrap(), 1_u32);
55 }
56
57 #[test]
test_two_unnamed()58 fn test_two_unnamed() {
59 let mut many = ManyVariants::Two(1, 2);
60
61 assert!(!many.is_one());
62 assert!(many.is_two());
63 assert!(!many.is_three());
64
65 assert!(many.as_one().is_none());
66 assert!(many.as_two().is_some());
67 assert!(many.as_three().is_none());
68
69 assert!(many.as_one_mut().is_none());
70 assert!(many.as_two_mut().is_some());
71 assert!(many.as_three_mut().is_none());
72
73 assert_eq!(many.as_two().unwrap(), (&1_u32, &2_i32));
74 assert_eq!(many.as_two_mut().unwrap(), (&mut 1_u32, &mut 2_i32));
75 assert_eq!(many.into_two().unwrap(), (1_u32, 2_i32));
76 }
77
78 #[test]
test_three_unnamed()79 fn test_three_unnamed() {
80 let mut many = ManyVariants::Three(true, 1, 2);
81
82 assert!(!many.is_one());
83 assert!(!many.is_two());
84 assert!(many.is_three());
85
86 assert!(many.as_one().is_none());
87 assert!(many.as_two().is_none());
88 assert!(many.as_three().is_some());
89
90 assert!(many.as_one_mut().is_none());
91 assert!(many.as_two_mut().is_none());
92 assert!(many.as_three_mut().is_some());
93
94 assert_eq!(many.as_three().unwrap(), (&true, &1_u32, &2_i64));
95 assert_eq!(
96 many.as_three_mut().unwrap(),
97 (&mut true, &mut 1_u32, &mut 2_i64)
98 );
99 assert_eq!(many.into_three().unwrap(), (true, 1_u32, 2_i64));
100 }
101