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#![no_std]
#[cfg(feature = "alloc")]
extern crate alloc;
extern crate pretty_hex;
#[cfg(feature = "alloc")]
use alloc::{format, string::String, vec, vec::Vec};
use pretty_hex::*;
#[cfg(feature = "alloc")]
#[test]
fn test_simple() {
let bytes: Vec<u8> = (0..16).collect();
let expected = "00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f";
assert_eq!(expected, simple_hex(&bytes));
assert_eq!(expected, format!("{}", bytes.hex_dump()));
assert_eq!(simple_hex(&bytes), config_hex(&bytes, HexConfig::simple()));
let mut have = String::new();
simple_hex_write(&mut have, &bytes).unwrap();
assert_eq!(expected, have);
let str = "string";
let string: String = String::from("string");
let slice: &[u8] = &[0x73, 0x74, 0x72, 0x69, 0x6e, 0x67];
assert_eq!(simple_hex(&str), "73 74 72 69 6e 67");
assert_eq!(simple_hex(&str), simple_hex(&string));
assert_eq!(simple_hex(&str), simple_hex(&slice));
assert!(simple_hex(&vec![]).is_empty());
}
#[cfg(feature = "alloc")]
#[test]
fn test_pretty() {
let bytes: Vec<u8> = (0..256).map(|x| x as u8).collect();
let want = include_str!("256.txt");
let mut hex = String::new();
pretty_hex_write(&mut hex, &bytes).unwrap();
assert_eq!(want, hex);
assert_eq!(want, format!("{:?}", bytes.hex_dump()));
assert_eq!(want, pretty_hex(&bytes));
assert_eq!(want, config_hex(&bytes, HexConfig::default()));
assert_eq!("Length: 0 (0x0) bytes\n", pretty_hex(&vec![]));
}
#[cfg(feature = "alloc")]
#[test]
fn test_config() {
let cfg = HexConfig {
title: false,
ascii: false,
width: 0,
group: 0,
chunk: 0,
max_bytes: usize::MAX,
display_offset: 0
};
assert!(config_hex(&vec![], cfg).is_empty());
assert_eq!("2425262728", config_hex(&"$%&'(", cfg));
let v = include_bytes!("data");
let cfg = HexConfig {
title: false,
group: 8,
..HexConfig::default()
};
let hex =
"0000: 6b 4e 1a c3 af 03 d2 1e 7e 73 ba c8 bd 84 0f 83 kN......~s......\n\
0010: 89 d5 cf 90 23 67 4b 48 db b1 bc 35 bf ee ....#gKH...5..";
assert_eq!(hex, config_hex(&v, cfg));
assert_eq!(hex, format!("{:?}", v.hex_conf(cfg)));
let mut str = String::new();
hex_write(&mut str, v, cfg).unwrap();
assert_eq!(hex, str);
assert_eq!(
config_hex(&v, HexConfig{ascii: false, ..cfg}),
"0000: 6b 4e 1a c3 af 03 d2 1e 7e 73 ba c8 bd 84 0f 83\n\
0010: 89 d5 cf 90 23 67 4b 48 db b1 bc 35 bf ee"
);
assert_eq!(
config_hex(&v,
HexConfig {
ascii: false,
group: 4,
chunk: 2,
..cfg
}
),
"0000: 6b4e 1ac3 af03 d21e 7e73 bac8 bd84 0f83\n\
0010: 89d5 cf90 2367 4b48 dbb1 bc35 bfee"
);
assert_eq!(
config_hex(&v,
HexConfig {
ascii: false,
display_offset: 0x200,
..cfg
}
),
"0200: 6b 4e 1a c3 af 03 d2 1e 7e 73 ba c8 bd 84 0f 83\n\
0210: 89 d5 cf 90 23 67 4b 48 db b1 bc 35 bf ee"
);
let v: Vec<u8> = (0..21).collect();
let want = r##"Length: 21 (0x15) bytes
0000: 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f ................
0010: 10 11 12 13 14 ....."##;
assert_eq!(want, pretty_hex(&v));
let v: Vec<u8> = (0..13).collect();
assert_eq!(
config_hex(&v,
HexConfig {
title: false,
ascii: true,
width: 11,
group: 2,
chunk: 3,
max_bytes: usize::MAX,
display_offset: 0
}),
"0000: 000102 030405 060708 090a ...........\n\
000b: 0b0c .."
);
let v: Vec<u8> = (0..19).collect();
assert_eq!(
config_hex(&v,
HexConfig {
title: false,
ascii: true,
width: 16,
group: 3,
chunk: 3,
max_bytes: usize::MAX,
display_offset: 0
}
),
"0000: 000102 030405 060708 090a0b 0c0d0e 0f ................\n\
0010: 101112 ..."
);
let cfg = HexConfig {
title: false,
group: 0,
..HexConfig::default()
};
assert_eq!(
format!("{:?}", v.hex_conf(cfg)),
"0000: 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f ................\n\
0010: 10 11 12 ..."
);
assert_eq!(
format!("{}", v.hex_conf(cfg)),
"00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f 10 11 12"
);
let cfg = HexConfig {
max_bytes: 16,
..HexConfig::default()
};
assert_eq!(
format!("{:?}", v.hex_conf(cfg)),
"Length: 19 (0x13) bytes\n\
0000: 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f ................\n\
...3 (0x3) bytes not shown..."
);
let cfg = HexConfig {
max_bytes: 4,
..HexConfig::default()
};
assert_eq!(
format!("{:?}", v.hex_conf(cfg)),
"Length: 19 (0x13) bytes\n\
0000: 00 01 02 03 ....\n\
...15 (0xf) bytes not shown..."
);
}
#[cfg(feature = "alloc")]
#[test]
fn test_unsized() {
struct NewType([u8]);
let x: &NewType = unsafe{ &*(&[] as *const [u8] as *const NewType) };
format!("{}", x.0.hex_dump());
format!("{:?}", x.0.hex_dump());
}
// This test case checks that hex_write works even without the alloc crate.
// Decorators to this function like simple_hex_write or PrettyHex::hex_dump()
// will be tested when the alloc feature is selected because it feels quite
// cumbersome to set up these tests without the comodity from `alloc`.
#[test]
fn test_hex_write_with_simple_config() {
let config = HexConfig::simple();
let bytes = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15];
let expected = core::str::from_utf8(b"00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f").unwrap();
let mut buffer = heapless::Vec::<u8, 50>::new();
hex_write(&mut buffer, &bytes, config).unwrap();
let have = core::str::from_utf8(&buffer).unwrap();
assert_eq!(expected, have);
}
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