mirror of
https://github.com/RGBCube/uutils-coreutils
synced 2025-07-28 03:27:44 +00:00
tail: improve performance of piped stdin
Rewrite handling of stdin when it is piped and read input in chunks. Fixes https://github.com/uutils/coreutils/issues/3842
This commit is contained in:
Joining7943
Sylvestre Ledru
parent
b39f5239e7
commit
2658f8ae5b
7 changed files with 1704 additions and 83 deletions
|
|
@ -3,7 +3,7 @@
|
|||
// * For the full copyright and license information, please view the LICENSE
|
||||
// * file that was distributed with this source code.
|
||||
|
||||
// spell-checker:ignore (ToDO) abcdefghijklmnopqrstuvwxyz efghijklmnopqrstuvwxyz vwxyz emptyfile file siette ocho nueve diez
|
||||
// spell-checker:ignore (ToDO) abcdefghijklmnopqrstuvwxyz efghijklmnopqrstuvwxyz vwxyz emptyfile file siette ocho nueve diez MULT
|
||||
// spell-checker:ignore (libs) kqueue
|
||||
// spell-checker:ignore (jargon) tailable untailable
|
||||
|
||||
|
|
@ -1090,18 +1090,6 @@ fn test_invalid_num() {
|
|||
.fails()
|
||||
.stderr_str()
|
||||
.starts_with("tail: invalid number of lines: '1Y': Value too large for defined data type");
|
||||
#[cfg(target_pointer_width = "32")]
|
||||
{
|
||||
let sizes = ["1000G", "10T"];
|
||||
for size in &sizes {
|
||||
new_ucmd!()
|
||||
.args(&["-c", size])
|
||||
.fails()
|
||||
.code_is(1)
|
||||
.stderr_str()
|
||||
.starts_with("tail: Insufficient addressable memory");
|
||||
}
|
||||
}
|
||||
new_ucmd!()
|
||||
.args(&["-c", "-³"])
|
||||
.fails()
|
||||
|
|
@ -2484,6 +2472,725 @@ fn test_illegal_seek() {
|
|||
assert_eq!(p.wait().unwrap().code().unwrap(), 1);
|
||||
}
|
||||
|
||||
#[cfg(all(not(target_os = "android"), not(target_os = "windows")))] // FIXME: See https://github.com/uutils/coreutils/issues/3881
|
||||
mod pipe_tests {
|
||||
use super::*;
|
||||
use crate::common::random::*;
|
||||
use rand::distributions::Alphanumeric;
|
||||
use tail::chunks::BUFFER_SIZE as CHUNK_BUFFER_SIZE;
|
||||
|
||||
#[test]
|
||||
fn test_pipe_when_lines_option_value_is_higher_than_contained_lines() {
|
||||
let test_string = "a\nb\n";
|
||||
new_ucmd!()
|
||||
.args(&["-n", "3"])
|
||||
.pipe_in(test_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only(test_string);
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-n", "4"])
|
||||
.pipe_in(test_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only(test_string);
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-n", "999"])
|
||||
.pipe_in(test_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only(test_string);
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-n", "+3"])
|
||||
.pipe_in(test_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.no_stdout()
|
||||
.no_stderr();
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-n", "+4"])
|
||||
.pipe_in(test_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.no_stdout()
|
||||
.no_stderr();
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-n", "+999"])
|
||||
.pipe_in(test_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.no_stdout()
|
||||
.no_stderr();
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_pipe_when_negative_lines_option_given_no_newline_at_eof() {
|
||||
let test_string = "a\nb";
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-n", "0"])
|
||||
.pipe_in(test_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.no_stdout()
|
||||
.no_stderr();
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-n", "1"])
|
||||
.pipe_in(test_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only("b");
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-n", "2"])
|
||||
.pipe_in(test_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only("a\nb");
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_pipe_when_positive_lines_option_given_no_newline_at_eof() {
|
||||
let test_string = "a\nb";
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-n", "+0"])
|
||||
.pipe_in(test_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only("a\nb");
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-n", "+1"])
|
||||
.pipe_in(test_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only("a\nb");
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-n", "+2"])
|
||||
.pipe_in(test_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only("b");
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_pipe_when_lines_option_given_multibyte_utf8_characters() {
|
||||
// the test string consists of from left to right a 4-byte,3-byte,2-byte,1-byte utf-8 character
|
||||
let test_string = "𝅘𝅥𝅮\n⏻\nƒ\na";
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-n", "+0"])
|
||||
.pipe_in(test_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only(test_string);
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-n", "+2"])
|
||||
.pipe_in(test_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only("⏻\nƒ\na");
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-n", "+3"])
|
||||
.pipe_in(test_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only("ƒ\na");
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-n", "+4"])
|
||||
.pipe_in(test_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only("a");
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-n", "+5"])
|
||||
.pipe_in(test_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.no_stdout()
|
||||
.no_stderr();
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-n", "-4"])
|
||||
.pipe_in(test_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only(test_string);
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-n", "-3"])
|
||||
.pipe_in(test_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only("⏻\nƒ\na");
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-n", "-2"])
|
||||
.pipe_in(test_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only("ƒ\na");
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-n", "-1"])
|
||||
.pipe_in(test_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only("a");
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-n", "-0"])
|
||||
.pipe_in(test_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.no_stdout()
|
||||
.no_stderr();
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_pipe_when_lines_option_given_input_size_is_equal_to_buffer_size_no_newline_at_eof() {
|
||||
let total_lines = 1;
|
||||
let random_string = RandomString::generate_with_delimiter(
|
||||
Alphanumeric,
|
||||
b'\n',
|
||||
total_lines,
|
||||
false,
|
||||
CHUNK_BUFFER_SIZE,
|
||||
);
|
||||
let random_string = random_string.as_str();
|
||||
let lines = random_string.split_inclusive('\n');
|
||||
|
||||
let expected = lines.clone().skip(1).collect::<String>();
|
||||
new_ucmd!()
|
||||
.args(&["-n", "+2"])
|
||||
.pipe_in(random_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only(expected);
|
||||
|
||||
let expected = lines.clone().skip(1).collect::<String>();
|
||||
new_ucmd!()
|
||||
.args(&["-n", "-1"])
|
||||
.pipe_in(random_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only(expected);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_pipe_when_lines_option_given_input_size_is_equal_to_buffer_size() {
|
||||
let total_lines = 100;
|
||||
let random_string = RandomString::generate_with_delimiter(
|
||||
Alphanumeric,
|
||||
b'\n',
|
||||
total_lines,
|
||||
true,
|
||||
CHUNK_BUFFER_SIZE,
|
||||
);
|
||||
let random_string = random_string.as_str();
|
||||
let lines = random_string.split_inclusive('\n');
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-n", "+0"])
|
||||
.pipe_in(random_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only(random_string);
|
||||
|
||||
let expected = lines.clone().skip(1).collect::<String>();
|
||||
new_ucmd!()
|
||||
.args(&["-n", "+2"])
|
||||
.pipe_in(random_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only(expected);
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-n", "-0"])
|
||||
.pipe_in(random_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.no_stdout()
|
||||
.no_stderr();
|
||||
|
||||
let expected = lines.clone().skip(total_lines - 1).collect::<String>();
|
||||
new_ucmd!()
|
||||
.args(&["-n", "-1"])
|
||||
.pipe_in(random_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only(expected);
|
||||
|
||||
let expected = lines.clone().skip(1).collect::<String>();
|
||||
new_ucmd!()
|
||||
.args(&["-n", "-99"])
|
||||
.pipe_in(random_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only(expected);
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-n", "-100"])
|
||||
.pipe_in(random_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only(random_string);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_pipe_when_lines_option_given_input_size_is_one_byte_greater_than_buffer_size() {
|
||||
let total_lines = 100;
|
||||
let random_string = RandomString::generate_with_delimiter(
|
||||
Alphanumeric,
|
||||
b'\n',
|
||||
total_lines,
|
||||
true,
|
||||
CHUNK_BUFFER_SIZE + 1,
|
||||
);
|
||||
let random_string = random_string.as_str();
|
||||
let lines = random_string.split_inclusive('\n');
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-n", "+0"])
|
||||
.pipe_in(random_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only(random_string);
|
||||
|
||||
let expected = lines.clone().skip(total_lines - 1).collect::<String>();
|
||||
new_ucmd!()
|
||||
.args(&["-n", "-1"])
|
||||
.pipe_in(random_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only(expected);
|
||||
|
||||
let expected = lines.clone().skip(1).collect::<String>();
|
||||
new_ucmd!()
|
||||
.args(&["-n", "+2"])
|
||||
.pipe_in(random_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only(expected);
|
||||
|
||||
let expected = lines.clone().skip(1).collect::<String>();
|
||||
new_ucmd!()
|
||||
.args(&["-n", "-99"])
|
||||
.pipe_in(random_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only(expected);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_pipe_when_lines_option_given_input_size_has_multiple_size_of_buffer_size() {
|
||||
let total_lines = 100;
|
||||
let random_string = RandomString::generate_with_delimiter(
|
||||
Alphanumeric,
|
||||
b'\n',
|
||||
total_lines,
|
||||
true,
|
||||
CHUNK_BUFFER_SIZE * 3 + 1,
|
||||
);
|
||||
let random_string = random_string.as_str();
|
||||
let lines = random_string.split_inclusive('\n');
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-n", "+0"])
|
||||
.pipe_in(random_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only(random_string);
|
||||
|
||||
let expected = lines.clone().skip(1).collect::<String>();
|
||||
new_ucmd!()
|
||||
.args(&["-n", "+2"])
|
||||
.pipe_in(random_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only(expected);
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-n", "-0"])
|
||||
.pipe_in(random_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.no_stdout()
|
||||
.no_stderr();
|
||||
|
||||
let expected = lines.clone().skip(total_lines - 1).collect::<String>();
|
||||
new_ucmd!()
|
||||
.args(&["-n", "-1"])
|
||||
.pipe_in(random_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only(expected);
|
||||
|
||||
let expected = lines.clone().skip(1).collect::<String>();
|
||||
new_ucmd!()
|
||||
.args(&["-n", "-99"])
|
||||
.pipe_in(random_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only(expected);
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-n", "-100"])
|
||||
.pipe_in(random_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only(random_string);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_pipe_when_bytes_option_value_is_higher_than_contained_bytes() {
|
||||
let test_string = "a\nb";
|
||||
new_ucmd!()
|
||||
.args(&["-c", "4"])
|
||||
.pipe_in(test_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only(test_string);
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-c", "5"])
|
||||
.pipe_in(test_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only(test_string);
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-c", "999"])
|
||||
.pipe_in(test_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only(test_string);
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-c", "+4"])
|
||||
.pipe_in(test_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.no_stdout()
|
||||
.no_stderr();
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-c", "+5"])
|
||||
.pipe_in(test_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.no_stdout()
|
||||
.no_stderr();
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-c", "+999"])
|
||||
.pipe_in(test_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.no_stdout()
|
||||
.no_stderr();
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_pipe_when_bytes_option_given_multibyte_utf8_characters() {
|
||||
// the test string consists of from left to right a 4-byte,3-byte,2-byte,1-byte utf-8 character
|
||||
let test_string = "𝅘𝅥𝅮⏻ƒa";
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-c", "+0"])
|
||||
.pipe_in(test_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only(test_string);
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-c", "+2"])
|
||||
.pipe_in(test_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only_bytes(&test_string.as_bytes()[1..]);
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-c", "+5"])
|
||||
.pipe_in(test_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only("⏻ƒa");
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-c", "+8"])
|
||||
.pipe_in(test_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only("ƒa");
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-c", "+10"])
|
||||
.pipe_in(test_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only("a");
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-c", "+11"])
|
||||
.pipe_in(test_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.no_stdout()
|
||||
.no_stderr();
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-c", "-1"])
|
||||
.pipe_in(test_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only("a");
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-c", "-2"])
|
||||
.pipe_in(test_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only_bytes(&"ƒa".as_bytes()[1..]);
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-c", "-3"])
|
||||
.pipe_in(test_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only("ƒa");
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-c", "-6"])
|
||||
.pipe_in(test_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only("⏻ƒa");
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-c", "-10"])
|
||||
.pipe_in(test_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only(test_string);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_pipe_when_bytes_option_given_input_size_is_equal_to_buffer_size() {
|
||||
let random_string = RandomString::generate(AlphanumericNewline, CHUNK_BUFFER_SIZE);
|
||||
let random_string = random_string.as_str();
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-c", "+0"])
|
||||
.pipe_in(random_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only(random_string);
|
||||
|
||||
let expected = &random_string.as_bytes()[1..];
|
||||
new_ucmd!()
|
||||
.args(&["-c", "+2"])
|
||||
.pipe_in(random_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only_bytes(expected);
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-c", "-0"])
|
||||
.pipe_in(random_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.no_stdout()
|
||||
.no_stderr();
|
||||
|
||||
let expected = &random_string.as_bytes()[1..];
|
||||
new_ucmd!()
|
||||
.args(&["-c", "-8191"])
|
||||
.pipe_in(random_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only_bytes(expected);
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-c", "-8192"])
|
||||
.pipe_in(random_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only_bytes(random_string);
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-c", "-8193"])
|
||||
.pipe_in(random_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only_bytes(random_string);
|
||||
|
||||
let expected = &random_string.as_bytes()[CHUNK_BUFFER_SIZE - 1..];
|
||||
new_ucmd!()
|
||||
.args(&["-c", "-1"])
|
||||
.pipe_in(random_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only_bytes(expected);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_pipe_when_bytes_option_given_input_size_is_one_byte_greater_than_buffer_size() {
|
||||
let random_string = RandomString::generate(AlphanumericNewline, CHUNK_BUFFER_SIZE + 1);
|
||||
let random_string = random_string.as_str();
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-c", "+0"])
|
||||
.pipe_in(random_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only(random_string);
|
||||
|
||||
let expected = &random_string.as_bytes()[1..];
|
||||
new_ucmd!()
|
||||
.args(&["-c", "+2"])
|
||||
.pipe_in(random_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only_bytes(expected);
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-c", "-0"])
|
||||
.pipe_in(random_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.no_stdout()
|
||||
.no_stderr();
|
||||
|
||||
let expected = &random_string.as_bytes()[CHUNK_BUFFER_SIZE..];
|
||||
new_ucmd!()
|
||||
.args(&["-c", "-1"])
|
||||
.pipe_in(random_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only_bytes(expected);
|
||||
|
||||
let expected = &random_string.as_bytes()[1..];
|
||||
new_ucmd!()
|
||||
.args(&["-c", "-8192"])
|
||||
.pipe_in(random_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only_bytes(expected);
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-c", "-8193"])
|
||||
.pipe_in(random_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only(random_string);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_pipe_when_bytes_option_given_input_size_has_multiple_size_of_buffer_size() {
|
||||
let random_string = RandomString::generate(AlphanumericNewline, CHUNK_BUFFER_SIZE * 3);
|
||||
let random_string = random_string.as_str();
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-c", "+0"])
|
||||
.pipe_in(random_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only(random_string);
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-c", "-0"])
|
||||
.pipe_in(random_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.no_stdout()
|
||||
.no_stderr();
|
||||
|
||||
let expected = &random_string.as_bytes()[8192..];
|
||||
new_ucmd!()
|
||||
.args(&["-c", "+8193"])
|
||||
.pipe_in(random_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only_bytes(expected);
|
||||
|
||||
let expected = &random_string.as_bytes()[8193..];
|
||||
new_ucmd!()
|
||||
.args(&["-c", "+8194"])
|
||||
.pipe_in(random_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only_bytes(expected);
|
||||
|
||||
let expected = &random_string.as_bytes()[16384..];
|
||||
new_ucmd!()
|
||||
.args(&["-c", "+16385"])
|
||||
.pipe_in(random_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only_bytes(expected);
|
||||
|
||||
let expected = &random_string.as_bytes()[16385..];
|
||||
new_ucmd!()
|
||||
.args(&["-c", "+16386"])
|
||||
.pipe_in(random_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only_bytes(expected);
|
||||
|
||||
let expected = &random_string.as_bytes()[16384..];
|
||||
new_ucmd!()
|
||||
.args(&["-c", "-8192"])
|
||||
.pipe_in(random_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only_bytes(expected);
|
||||
|
||||
let expected = &random_string.as_bytes()[16383..];
|
||||
new_ucmd!()
|
||||
.args(&["-c", "-8193"])
|
||||
.pipe_in(random_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only_bytes(expected);
|
||||
|
||||
let expected = &random_string.as_bytes()[8192..];
|
||||
new_ucmd!()
|
||||
.args(&["-c", "-16384"])
|
||||
.pipe_in(random_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only_bytes(expected);
|
||||
|
||||
let expected = &random_string.as_bytes()[8191..];
|
||||
new_ucmd!()
|
||||
.args(&["-c", "-16385"])
|
||||
.pipe_in(random_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only_bytes(expected);
|
||||
|
||||
new_ucmd!()
|
||||
.args(&["-c", "-24576"])
|
||||
.pipe_in(random_string)
|
||||
.ignore_stdin_write_error()
|
||||
.succeeds()
|
||||
.stdout_only(random_string);
|
||||
}
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_seek_bytes_backward_outside_file() {
|
||||
new_ucmd!()
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue