coreutils/tests/by-util/test_truncate.rs
Jeffrey Finkelstein fe5b537f56 truncate: error when trying to truncate a fifo
Terminate the `truncate` program with an error message when trying to
truncate a named pipe (also known as a fifo).
2022-01-30 22:03:12 -05:00

435 lines
11 KiB
Rust

// * This file is part of the uutils coreutils package.
// *
// * For the full copyright and license information, please view the LICENSE
// * file that was distributed with this source code.
// spell-checker:ignore (words) RFILE
use crate::common::util::*;
use std::io::{Seek, SeekFrom, Write};
static FILE1: &str = "truncate_test_1";
static FILE2: &str = "truncate_test_2";
#[test]
fn test_increase_file_size() {
let expected = 5 * 1024;
let (at, mut ucmd) = at_and_ucmd!();
let mut file = at.make_file(FILE1);
ucmd.args(&["-s", "+5K", FILE1]).succeeds();
file.seek(SeekFrom::End(0)).unwrap();
let actual = file.seek(SeekFrom::Current(0)).unwrap();
assert!(
expected == actual,
"expected '{}' got '{}'",
expected,
actual
);
}
#[test]
fn test_increase_file_size_kb() {
let expected = 5 * 1000;
let (at, mut ucmd) = at_and_ucmd!();
let mut file = at.make_file(FILE1);
ucmd.args(&["-s", "+5KB", FILE1]).succeeds();
file.seek(SeekFrom::End(0)).unwrap();
let actual = file.seek(SeekFrom::Current(0)).unwrap();
assert!(
expected == actual,
"expected '{}' got '{}'",
expected,
actual
);
}
#[test]
fn test_reference() {
let expected = 5 * 1000;
let scene = TestScenario::new(util_name!());
let at = &scene.fixtures;
let mut file = at.make_file(FILE2);
// manpage: "A FILE argument that does not exist is created."
// TODO: 'truncate' does not create the file in this case,
// but should because '--no-create' wasn't specified.
at.touch(FILE1); // TODO: remove this when 'no-create' is fixed
scene.ucmd().arg("-s").arg("+5KB").arg(FILE1).succeeds();
scene
.ucmd()
.arg("--reference")
.arg(FILE1)
.arg(FILE2)
.succeeds();
file.seek(SeekFrom::End(0)).unwrap();
let actual = file.seek(SeekFrom::Current(0)).unwrap();
assert!(
expected == actual,
"expected '{}' got '{}'",
expected,
actual
);
}
#[test]
fn test_decrease_file_size() {
let expected = 6;
let (at, mut ucmd) = at_and_ucmd!();
let mut file = at.make_file(FILE2);
file.write_all(b"1234567890").unwrap();
ucmd.args(&["--size=-4", FILE2]).succeeds();
file.seek(SeekFrom::End(0)).unwrap();
let actual = file.seek(SeekFrom::Current(0)).unwrap();
assert!(
expected == actual,
"expected '{}' got '{}'",
expected,
actual
);
}
#[test]
fn test_space_in_size() {
let expected = 4;
let (at, mut ucmd) = at_and_ucmd!();
let mut file = at.make_file(FILE2);
file.write_all(b"1234567890").unwrap();
ucmd.args(&["--size", " 4", FILE2]).succeeds();
file.seek(SeekFrom::End(0)).unwrap();
let actual = file.seek(SeekFrom::Current(0)).unwrap();
assert!(
expected == actual,
"expected '{}' got '{}'",
expected,
actual
);
}
#[test]
fn test_failed() {
new_ucmd!().fails();
}
#[test]
fn test_failed_2() {
let (_at, mut ucmd) = at_and_ucmd!();
ucmd.args(&[FILE1]).fails();
}
#[test]
fn test_failed_incorrect_arg() {
let (_at, mut ucmd) = at_and_ucmd!();
ucmd.args(&["-s", "+5A", FILE1]).fails();
}
#[test]
fn test_at_most_shrinks() {
let expected = 4;
let (at, mut ucmd) = at_and_ucmd!();
let mut file = at.make_file(FILE2);
file.write_all(b"1234567890").unwrap();
ucmd.args(&["--size", "<4", FILE2]).succeeds();
file.seek(SeekFrom::End(0)).unwrap();
let actual = file.seek(SeekFrom::Current(0)).unwrap();
assert!(
expected == actual,
"expected '{}' got '{}'",
expected,
actual
);
}
#[test]
fn test_at_most_no_change() {
let expected = 10;
let (at, mut ucmd) = at_and_ucmd!();
let mut file = at.make_file(FILE2);
file.write_all(b"1234567890").unwrap();
ucmd.args(&["--size", "<40", FILE2]).succeeds();
file.seek(SeekFrom::End(0)).unwrap();
let actual = file.seek(SeekFrom::Current(0)).unwrap();
assert!(
expected == actual,
"expected '{}' got '{}'",
expected,
actual
);
}
#[test]
fn test_at_least_grows() {
let expected = 15;
let (at, mut ucmd) = at_and_ucmd!();
let mut file = at.make_file(FILE2);
file.write_all(b"1234567890").unwrap();
ucmd.args(&["--size", ">15", FILE2]).succeeds();
file.seek(SeekFrom::End(0)).unwrap();
let actual = file.seek(SeekFrom::Current(0)).unwrap();
assert!(
expected == actual,
"expected '{}' got '{}'",
expected,
actual
);
}
#[test]
fn test_at_least_no_change() {
let expected = 10;
let (at, mut ucmd) = at_and_ucmd!();
let mut file = at.make_file(FILE2);
file.write_all(b"1234567890").unwrap();
ucmd.args(&["--size", ">4", FILE2]).succeeds();
file.seek(SeekFrom::End(0)).unwrap();
let actual = file.seek(SeekFrom::Current(0)).unwrap();
assert!(
expected == actual,
"expected '{}' got '{}'",
expected,
actual
);
}
#[test]
fn test_round_down() {
let expected = 8;
let (at, mut ucmd) = at_and_ucmd!();
let mut file = at.make_file(FILE2);
file.write_all(b"1234567890").unwrap();
ucmd.args(&["--size", "/4", FILE2]).succeeds();
file.seek(SeekFrom::End(0)).unwrap();
let actual = file.seek(SeekFrom::Current(0)).unwrap();
assert!(
expected == actual,
"expected '{}' got '{}'",
expected,
actual
);
}
#[test]
fn test_round_up() {
let expected = 12;
let (at, mut ucmd) = at_and_ucmd!();
let mut file = at.make_file(FILE2);
file.write_all(b"1234567890").unwrap();
ucmd.args(&["--size", "%4", FILE2]).succeeds();
file.seek(SeekFrom::End(0)).unwrap();
let actual = file.seek(SeekFrom::Current(0)).unwrap();
assert!(
expected == actual,
"expected '{}' got '{}'",
expected,
actual
);
}
#[test]
fn test_size_and_reference() {
let expected = 15;
let (at, mut ucmd) = at_and_ucmd!();
let mut file1 = at.make_file(FILE1);
let mut file2 = at.make_file(FILE2);
file1.write_all(b"1234567890").unwrap();
ucmd.args(&["--reference", FILE1, "--size", "+5", FILE2])
.succeeds();
file2.seek(SeekFrom::End(0)).unwrap();
let actual = file2.seek(SeekFrom::Current(0)).unwrap();
assert!(
expected == actual,
"expected '{}' got '{}'",
expected,
actual
);
}
#[test]
fn test_error_filename_only() {
// truncate: you must specify either '--size' or '--reference'
new_ucmd!().args(&["file"]).fails().stderr_contains(
"error: The following required arguments were not provided:
--reference <RFILE>
--size <SIZE>",
);
}
#[test]
fn test_invalid_numbers() {
new_ucmd!()
.args(&["-s", "0X", "file"])
.fails()
.stderr_contains("Invalid number: '0X'");
new_ucmd!()
.args(&["-s", "0XB", "file"])
.fails()
.stderr_contains("Invalid number: '0XB'");
new_ucmd!()
.args(&["-s", "0B", "file"])
.fails()
.stderr_contains("Invalid number: '0B'");
}
#[test]
fn test_reference_file_not_found() {
new_ucmd!()
.args(&["-r", "a", "b"])
.fails()
.stderr_contains("cannot stat 'a': No such file or directory");
}
#[test]
fn test_reference_with_size_file_not_found() {
new_ucmd!()
.args(&["-r", "a", "-s", "+1", "b"])
.fails()
.stderr_contains("cannot stat 'a': No such file or directory");
}
#[test]
fn test_truncate_bytes_size() {
// TODO: this should succeed without error, uncomment when '--no-create' is fixed
// new_ucmd!()
// .args(&["--no-create", "--size", "K", "file"])
// .succeeds();
new_ucmd!()
.args(&["--size", "1024R", "file"])
.fails()
.code_is(1)
.stderr_only("truncate: Invalid number: '1024R'");
#[cfg(not(target_pointer_width = "128"))]
new_ucmd!()
.args(&["--size", "1Y", "file"])
.fails()
.code_is(1)
.stderr_only("truncate: Invalid number: '1Y': Value too large for defined data type");
#[cfg(target_pointer_width = "32")]
{
let sizes = ["1000G", "10T"];
for size in &sizes {
new_ucmd!()
.args(&["--size", size, "file"])
.fails()
.code_is(1)
.stderr_only(format!(
"truncate: Invalid number: '{}': Value too large for defined data type",
size
));
}
}
}
/// Test that truncating a non-existent file creates that file.
#[test]
fn test_new_file() {
let (at, mut ucmd) = at_and_ucmd!();
let filename = "new_file_that_does_not_exist_yet";
ucmd.args(&["-s", "8", filename])
.succeeds()
.no_stdout()
.no_stderr();
assert!(at.file_exists(filename));
assert_eq!(at.read_bytes(filename), vec![b'\0'; 8]);
}
/// Test for not creating a non-existent file.
#[test]
fn test_new_file_no_create() {
let (at, mut ucmd) = at_and_ucmd!();
let filename = "new_file_that_does_not_exist_yet";
ucmd.args(&["-s", "8", "-c", filename])
.succeeds()
.no_stdout()
.no_stderr();
assert!(!at.file_exists(filename));
}
#[test]
fn test_division_by_zero_size_only() {
new_ucmd!()
.args(&["-s", "/0", "file"])
.fails()
.no_stdout()
.stderr_contains("division by zero");
new_ucmd!()
.args(&["-s", "%0", "file"])
.fails()
.no_stdout()
.stderr_contains("division by zero");
}
#[test]
fn test_division_by_zero_reference_and_size() {
let (at, mut ucmd) = at_and_ucmd!();
at.make_file(FILE1);
ucmd.args(&["-r", FILE1, "-s", "/0", "file"])
.fails()
.no_stdout()
.stderr_contains("division by zero");
let (at, mut ucmd) = at_and_ucmd!();
at.make_file(FILE1);
ucmd.args(&["-r", FILE1, "-s", "%0", "file"])
.fails()
.no_stdout()
.stderr_contains("division by zero");
}
#[test]
fn test_no_such_dir() {
new_ucmd!()
.args(&["-s", "0", "a/b"])
.fails()
.no_stdout()
.stderr_contains("cannot open 'a/b' for writing: No such file or directory");
}
/// Test that truncate with a relative size less than 0 is not an error.
#[test]
fn test_underflow_relative_size() {
let (at, mut ucmd) = at_and_ucmd!();
ucmd.args(&["-s-1", FILE1])
.succeeds()
.no_stdout()
.no_stderr();
assert!(at.file_exists(FILE1));
assert!(at.read_bytes(FILE1).is_empty());
}
#[cfg(not(windows))]
#[test]
fn test_fifo_error_size_only() {
let (at, mut ucmd) = at_and_ucmd!();
at.mkfifo("fifo");
ucmd.args(&["-s", "0", "fifo"])
.fails()
.no_stdout()
.stderr_contains("cannot open 'fifo' for writing: No such device or address");
}
#[cfg(not(windows))]
#[test]
fn test_fifo_error_reference_file_only() {
let (at, mut ucmd) = at_and_ucmd!();
at.mkfifo("fifo");
at.make_file("reference_file");
ucmd.args(&["-r", "reference_file", "fifo"])
.fails()
.no_stdout()
.stderr_contains("cannot open 'fifo' for writing: No such device or address");
}
#[cfg(not(windows))]
#[test]
fn test_fifo_error_reference_and_size() {
let (at, mut ucmd) = at_and_ucmd!();
at.mkfifo("fifo");
at.make_file("reference_file");
ucmd.args(&["-r", "reference_file", "-s", "+0", "fifo"])
.fails()
.no_stdout()
.stderr_contains("cannot open 'fifo' for writing: No such device or address");
}