summaryrefslogtreecommitdiffstats
path: root/third_party/rust/flate2/tests/empty-read.rs
blob: 75512383365212f5a841f69dd2eaedf89e450aee (plain)
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
extern crate flate2;

use std::io::{Read, Write};

#[test]
fn deflate_decoder_empty_read() {
    let original: &[u8] = b"Lorem ipsum dolor sit amet.";
    let mut encoder =
        flate2::write::DeflateEncoder::new(Vec::new(), flate2::Compression::default());
    encoder.write_all(original).unwrap();
    let encoded: Vec<u8> = encoder.finish().unwrap();
    let mut decoder = flate2::read::DeflateDecoder::new(encoded.as_slice());
    assert_eq!(decoder.read(&mut []).unwrap(), 0);
    let mut decoded = Vec::new();
    decoder.read_to_end(&mut decoded).unwrap();
    assert_eq!(decoded.as_slice(), original);
}

#[test]
fn deflate_encoder_empty_read() {
    let original: &[u8] = b"Lorem ipsum dolor sit amet.";
    let mut encoder = flate2::read::DeflateEncoder::new(original, flate2::Compression::default());
    assert_eq!(encoder.read(&mut []).unwrap(), 0);
    let mut encoded = Vec::new();
    encoder.read_to_end(&mut encoded).unwrap();
    let mut decoder = flate2::read::DeflateDecoder::new(encoded.as_slice());
    let mut decoded = Vec::new();
    decoder.read_to_end(&mut decoded).unwrap();
    assert_eq!(decoded.as_slice(), original);
}

#[test]
fn gzip_decoder_empty_read() {
    let original: &[u8] = b"Lorem ipsum dolor sit amet.";
    let mut encoder = flate2::write::GzEncoder::new(Vec::new(), flate2::Compression::default());
    encoder.write_all(original).unwrap();
    let encoded: Vec<u8> = encoder.finish().unwrap();
    let mut decoder = flate2::read::GzDecoder::new(encoded.as_slice());
    assert_eq!(decoder.read(&mut []).unwrap(), 0);
    let mut decoded = Vec::new();
    decoder.read_to_end(&mut decoded).unwrap();
    assert_eq!(decoded.as_slice(), original);
}

#[test]
fn gzip_encoder_empty_read() {
    let original: &[u8] = b"Lorem ipsum dolor sit amet.";
    let mut encoder = flate2::read::GzEncoder::new(original, flate2::Compression::default());
    assert_eq!(encoder.read(&mut []).unwrap(), 0);
    let mut encoded = Vec::new();
    encoder.read_to_end(&mut encoded).unwrap();
    let mut decoder = flate2::read::GzDecoder::new(encoded.as_slice());
    let mut decoded = Vec::new();
    decoder.read_to_end(&mut decoded).unwrap();
    assert_eq!(decoded.as_slice(), original);
}

#[test]
fn zlib_decoder_empty_read() {
    let original: &[u8] = b"Lorem ipsum dolor sit amet.";
    let mut encoder = flate2::write::ZlibEncoder::new(Vec::new(), flate2::Compression::default());
    encoder.write_all(original).unwrap();
    let encoded: Vec<u8> = encoder.finish().unwrap();
    let mut decoder = flate2::read::ZlibDecoder::new(encoded.as_slice());
    assert_eq!(decoder.read(&mut []).unwrap(), 0);
    let mut decoded = Vec::new();
    decoder.read_to_end(&mut decoded).unwrap();
    assert_eq!(decoded.as_slice(), original);
}

#[test]
fn zlib_encoder_empty_read() {
    let original: &[u8] = b"Lorem ipsum dolor sit amet.";
    let mut encoder = flate2::read::ZlibEncoder::new(original, flate2::Compression::default());
    assert_eq!(encoder.read(&mut []).unwrap(), 0);
    let mut encoded = Vec::new();
    encoder.read_to_end(&mut encoded).unwrap();
    let mut decoder = flate2::read::ZlibDecoder::new(encoded.as_slice());
    let mut decoded = Vec::new();
    decoder.read_to_end(&mut decoded).unwrap();
    assert_eq!(decoded.as_slice(), original);
}