mirror of
https://github.com/uutils/coreutils
synced 2024-12-16 00:02:50 +00:00
41 lines
1.1 KiB
Rust
41 lines
1.1 KiB
Rust
use std::io;
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use std::io::process::Command;
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static PROG: &'static str = "build/truncate";
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static TFILE1: &'static str = "truncate_test_1";
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static TFILE2: &'static str = "truncate_test_2";
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fn make_file(name: &str) -> io::File {
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match io::File::create(&Path::new(name)) {
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Ok(f) => f,
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Err(_) => fail!()
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}
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}
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#[test]
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fn test_increase_file_size() {
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let mut file = make_file(TFILE1);
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if !Command::new(PROG).args(["-s", "+5K", TFILE1]).status().unwrap().success() {
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fail!();
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}
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file.seek(0, io::SeekEnd).unwrap();
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if file.tell().unwrap() != 5 * 1024 {
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fail!();
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}
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io::fs::unlink(&Path::new(TFILE1)).unwrap();
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}
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#[test]
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fn test_decrease_file_size() {
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let mut file = make_file(TFILE2);
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file.write(b"1234567890").unwrap();
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if !Command::new(PROG).args(["--size=-4", TFILE2]).status().unwrap().success() {
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fail!();
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}
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file.seek(0, io::SeekEnd).unwrap();
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if file.tell().unwrap() != 6 {
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println!("{}", file.tell());
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fail!();
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}
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io::fs::unlink(&Path::new(TFILE2)).unwrap();
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}
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