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 { one: u32 },
32 Two { one: u32, two: i32 },
33 Three { one: bool, two: u32, three: i64 },
34 }
35
36 #[test]
test_one_named()37 fn test_one_named() {
38 let mut many = ManyVariants::One { 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 }
55
56 #[test]
test_two_named()57 fn test_two_named() {
58 let mut many = ManyVariants::Two { one: 1, two: 2 };
59
60 assert!(!many.is_one());
61 assert!(many.is_two());
62 assert!(!many.is_three());
63 assert!(many.as_one().is_none());
64 assert!(many.as_two().is_some());
65 assert!(many.as_three().is_none());
66 assert!(many.as_one_mut().is_none());
67 assert!(many.as_two_mut().is_some());
68 assert!(many.as_three_mut().is_none());
69
70 assert_eq!(many.as_two().unwrap(), (&1_u32, &2_i32));
71 assert_eq!(many.as_two_mut().unwrap(), (&mut 1_u32, &mut 2_i32));
72 assert_eq!(many.into_two().unwrap(), (1_u32, 2_i32));
73 }
74
75 #[test]
test_three_named()76 fn test_three_named() {
77 let mut many = ManyVariants::Three {
78 one: true,
79 two: 1,
80 three: 2,
81 };
82
83 assert!(!many.is_one());
84 assert!(!many.is_two());
85 assert!(many.is_three());
86 assert!(many.as_one().is_none());
87 assert!(many.as_two().is_none());
88 assert!(many.as_three().is_some());
89 assert!(many.as_one_mut().is_none());
90 assert!(many.as_two_mut().is_none());
91 assert!(many.as_three_mut().is_some());
92
93 assert_eq!(many.as_three().unwrap(), (&true, &1_u32, &2_i64));
94 assert_eq!(
95 many.as_three_mut().unwrap(),
96 (&mut true, &mut 1_u32, &mut 2_i64)
97 );
98 assert_eq!(many.into_three().unwrap(), (true, 1_u32, 2_i64));
99 }
100