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
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
|
// Copyright 2019 The Servo Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
#![allow(dead_code)]
use peek_poke::{PeekPoke, Poke};
use std::{marker::PhantomData, mem::size_of};
#[test]
fn test_numbers() {
assert_eq!(u8::max_size(), size_of::<u8>());
assert_eq!(u16::max_size(), size_of::<u16>());
assert_eq!(u32::max_size(), size_of::<u32>());
assert_eq!(u64::max_size(), size_of::<u64>());
assert_eq!(usize::max_size(), size_of::<usize>());
assert_eq!(i8::max_size(), size_of::<i8>());
assert_eq!(i16::max_size(), size_of::<i16>());
assert_eq!(i32::max_size(), size_of::<i32>());
assert_eq!(i64::max_size(), size_of::<i64>());
assert_eq!(isize::max_size(), size_of::<isize>());
// floating
assert_eq!(f32::max_size(), size_of::<f32>());
assert_eq!(f64::max_size(), size_of::<f64>());
}
#[test]
fn test_bool() {
assert_eq!(bool::max_size(), size_of::<u8>());
}
#[test]
fn test_option() {
assert_eq!(
Option::<usize>::max_size(),
<u8>::max_size() + <usize>::max_size()
);
}
#[test]
fn test_fixed_size_array() {
assert_eq!(<[u32; 32]>::max_size(), 32 * size_of::<u32>());
assert_eq!(<[u64; 8]>::max_size(), 8 * size_of::<u64>());
assert_eq!(<[u8; 19]>::max_size(), 19 * size_of::<u8>());
}
#[test]
fn test_tuple() {
assert_eq!(<(isize, )>::max_size(), size_of::<isize>());
assert_eq!(<(isize, isize, isize)>::max_size(), 3 * size_of::<isize>());
assert_eq!(<(isize, ())>::max_size(), size_of::<isize>());
}
#[test]
fn test_basic_struct() {
#[derive(Debug, PeekPoke)]
struct Bar {
a: u32,
b: u32,
c: u32,
}
assert_eq!(<Bar>::max_size(), 3 * <u32>::max_size());
}
#[test]
fn test_enum() {
#[derive(Clone, Copy, PeekPoke)]
enum TestEnum {
NoArg,
OneArg(usize),
Args(usize, usize),
AnotherNoArg,
StructLike { x: usize, y: f32 },
}
assert_eq!(
TestEnum::max_size(),
<u8>::max_size() + 2 * <usize>::max_size()
);
}
#[test]
fn test_enum_cstyle() {
#[repr(u32)]
#[derive(Clone, Copy, PeekPoke)]
enum BorderStyle {
None = 0,
Solid = 1,
Double = 2,
Dotted = 3,
Dashed = 4,
Hidden = 5,
Groove = 6,
Ridge = 7,
Inset = 8,
Outset = 9,
}
assert_eq!(BorderStyle::max_size(), <u8>::max_size());
}
#[test]
fn test_phantom_data() {
struct Bar;
#[derive(PeekPoke)]
struct Foo {
x: u32,
y: u32,
_marker: PhantomData<Bar>,
}
assert_eq!(Foo::max_size(), 2 * size_of::<u32>())
}
|
