hxd 0.1.0

A simple and configurable hexdump library
Documentation 
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

use std::{convert::Infallible, vec};

use hxd::{options::HexdOptionsBuilder, writer::WriteHexdump, AsHexd};

struct FlushTester(Vec<usize>, usize);

impl Default for FlushTester {
    fn default() -> Self {
        FlushTester(vec![], 0)
    }
}

impl WriteHexdump for FlushTester {
    type Error = Infallible;

    type Output = Vec<usize>;

    fn write_line(&mut self, _: &str) -> Result<(), Self::Error> {
        self.1 += 1;
        Ok(())
    }

    fn consume(r: Result<Self, Self::Error>) -> Self::Output {
        r.unwrap().0
    }

    fn flush(&mut self) -> Result<(), Self::Error> {
        self.0.push(self.1);
        self.1 = 0;
        Ok(())
    }
}

#[test]
fn test_flush_after_n_lines() {
    // Given
    let v = vec![0u8; 87];

    // When
    let flushes = v
        .hexd()
        .autoskip(false)
        .ungrouped(8, hxd::options::Spacing::None)
        .flush(hxd::options::FlushMode::AfterNLines(4))
        .dump_to::<FlushTester>();

    // Then
    assert_eq!(vec![4usize, 4usize, 3usize], flushes);
}

#[test]
fn test_flush_at_eof() {
    // Given
    let v = vec![0u8; 71];

    // When
    let flushes = v
        .hexd()
        .autoskip(false)
        .ungrouped(8, hxd::options::Spacing::None)
        .flush(hxd::options::FlushMode::End)
        .dump_to::<FlushTester>();

    // Then
    assert_eq!(vec![9usize], flushes);
}