76 lines
2.2 KiB
Rust
76 lines
2.2 KiB
Rust
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use flate2::read::GzDecoder;
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use flate2::read::MultiGzDecoder;
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use std::fs::File;
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use std::io::prelude::*;
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use std::io::{self, BufReader};
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use std::path::Path;
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// test extraction of a gzipped file
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#[test]
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fn test_extract_success() {
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let content = extract_file(Path::new("tests/good-file.gz")).unwrap();
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let mut expected = Vec::new();
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File::open("tests/good-file.txt")
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.unwrap()
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.read_to_end(&mut expected)
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.unwrap();
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assert_eq!(content, expected);
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}
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//
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// test partial extraction of a multistream gzipped file
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#[test]
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fn test_extract_success_partial_multi() {
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let content = extract_file(Path::new("tests/multi.gz")).unwrap();
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let mut expected = String::new();
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BufReader::new(File::open("tests/multi.txt").unwrap())
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.read_line(&mut expected)
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.unwrap();
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assert_eq!(content, expected.as_bytes());
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}
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// test extraction fails on a corrupt file
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#[test]
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fn test_extract_failure() {
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let result = extract_file(Path::new("tests/corrupt-gz-file.bin"));
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assert_eq!(result.err().unwrap().kind(), io::ErrorKind::InvalidInput);
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}
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//test complete extraction of a multistream gzipped file
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#[test]
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fn test_extract_success_multi() {
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let content = extract_file_multi(Path::new("tests/multi.gz")).unwrap();
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let mut expected = Vec::new();
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File::open("tests/multi.txt")
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.unwrap()
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.read_to_end(&mut expected)
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.unwrap();
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assert_eq!(content, expected);
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}
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// Tries to extract path into memory (assuming a .gz file).
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fn extract_file(path_compressed: &Path) -> io::Result<Vec<u8>> {
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let mut v = Vec::new();
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let f = File::open(path_compressed)?;
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GzDecoder::new(f).read_to_end(&mut v)?;
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Ok(v)
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}
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// Tries to extract path into memory (decompressing all members in case
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// of a multi member .gz file).
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fn extract_file_multi(path_compressed: &Path) -> io::Result<Vec<u8>> {
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let mut v = Vec::new();
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let f = File::open(path_compressed)?;
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MultiGzDecoder::new(f).read_to_end(&mut v)?;
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Ok(v)
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}
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#[test]
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fn empty_error_once() {
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let data: &[u8] = &[];
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let cbjson = GzDecoder::new(data);
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let reader = BufReader::new(cbjson);
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let mut stream = reader.lines();
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assert!(stream.next().unwrap().is_err());
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assert!(stream.next().is_none());
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}
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