bat/tests/integration_tests.rs

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Rust
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use assert_cmd::assert::OutputAssertExt;
use assert_cmd::cargo::CommandCargoExt;
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use predicates::{prelude::predicate, str::PredicateStrExt};
use serial_test::serial;
use std::env;
use std::fs::File;
use std::path::{Path, PathBuf};
use std::process::{Command, Stdio};
use std::str::from_utf8;
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#[cfg(unix)]
use std::time::Duration;
const EXAMPLES_DIR: &str = "tests/examples";
#[cfg(unix)]
const SAFE_CHILD_PROCESS_CREATION_TIME: Duration = Duration::from_millis(100);
#[cfg(unix)]
const CHILD_WAIT_TIMEOUT: Duration = Duration::from_secs(15);
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fn bat_raw_command() -> Command {
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let mut cmd = Command::cargo_bin("bat").unwrap();
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cmd.current_dir("tests/examples");
cmd.env_remove("PAGER");
cmd.env_remove("BAT_PAGER");
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cmd.env_remove("BAT_CONFIG_PATH");
cmd.env_remove("BAT_STYLE");
cmd.env_remove("BAT_THEME");
cmd.env_remove("BAT_TABS");
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cmd
}
fn bat_with_config() -> assert_cmd::Command {
assert_cmd::Command::from_std(bat_raw_command())
}
fn bat() -> assert_cmd::Command {
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let mut cmd = bat_with_config();
cmd.arg("--no-config");
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cmd
}
/// For some tests we want mocked versions of some pagers
/// This fn returns the absolute path to the directory with these mocked pagers
fn get_mocked_pagers_dir() -> PathBuf {
let cargo_manifest_dir = env::var("CARGO_MANIFEST_DIR").expect("Missing CARGO_MANIFEST_DIR");
Path::new(&cargo_manifest_dir)
.join("tests")
.join("mocked-pagers")
}
/// On Unix: 'most' -> 'most'
/// On Windows: 'most' -> 'most.bat'
fn mocked_pager(base: &str) -> String {
if cfg!(windows) {
let mut str = String::from(base);
str.push_str(".bat");
str
} else {
String::from(base)
}
}
/// Prepends a directory to the PATH environment variable
/// Returns the original value for later restoration
fn prepend_dir_to_path_env_var(dir: PathBuf) -> String {
// Get current PATH
let original_path = env::var("PATH").expect("No PATH?!");
// Add the new dir first
let mut split_paths = env::split_paths(&original_path).collect::<Vec<_>>();
split_paths.insert(0, dir);
// Set PATH with the new dir
let new_path = env::join_paths(split_paths).expect("Failed to join paths");
env::set_var("PATH", new_path);
// Return the original value for later restoration of it
original_path
}
/// Helper to restore the value of PATH
fn restore_path(original_path: String) {
env::set_var("PATH", original_path);
}
/// Allows test to run that require our mocked versions of 'more' and 'most'
/// in PATH. Temporarily changes PATH while the test code runs, and then restore it
/// to avoid pollution of global state
fn with_mocked_versions_of_more_and_most_in_path(actual_test: fn()) {
let original_path = prepend_dir_to_path_env_var(get_mocked_pagers_dir());
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// Make sure our own variants of 'more' and 'most' are used
Command::new(mocked_pager("more"))
.assert()
.success()
.stdout(predicate::str::contains("I am more"));
Command::new(mocked_pager("most"))
.assert()
.success()
.stdout(predicate::str::contains("I am most"));
// Now run the actual test
actual_test();
// Make sure to restore PATH since it is global state
restore_path(original_path);
}
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#[test]
fn basic() {
bat()
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.arg("test.txt")
.assert()
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.success()
.stdout("hello world\n")
.stderr("");
}
#[test]
fn stdin() {
bat()
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.write_stdin("foo\nbar\n")
.assert()
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.success()
.stdout("foo\nbar\n");
}
#[test]
fn concatenate() {
bat()
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.arg("test.txt")
.arg("test.txt")
.assert()
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.success()
.stdout("hello world\nhello world\n");
}
#[test]
fn concatenate_stdin() {
bat()
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.arg("test.txt")
.arg("-")
.arg("test.txt")
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.write_stdin("stdin\n")
.assert()
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.success()
.stdout("hello world\nstdin\nhello world\n");
}
#[test]
fn concatenate_empty_first() {
bat()
.arg("empty.txt")
.arg("test.txt")
.assert()
.success()
.stdout("hello world\n");
}
#[test]
fn concatenate_empty_last() {
bat()
.arg("test.txt")
.arg("empty.txt")
.assert()
.success()
.stdout("hello world\n");
}
#[test]
fn concatenate_empty_both() {
bat()
.arg("empty.txt")
.arg("empty.txt")
.assert()
.success()
.stdout("");
}
#[test]
fn concatenate_empty_between() {
bat()
.arg("test.txt")
.arg("empty.txt")
.arg("test.txt")
.assert()
.success()
.stdout("hello world\nhello world\n");
}
#[test]
fn concatenate_empty_first_and_last() {
bat()
.arg("empty.txt")
.arg("test.txt")
.arg("empty.txt")
.assert()
.success()
.stdout("hello world\n");
}
#[test]
fn concatenate_single_line() {
bat()
.arg("single-line.txt")
.arg("single-line.txt")
.assert()
.success()
.stdout("Single LineSingle Line");
}
#[test]
fn concatenate_single_line_empty() {
bat()
.arg("single-line.txt")
.arg("empty.txt")
.arg("single-line.txt")
.assert()
.success()
.stdout("Single LineSingle Line");
}
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#[test]
fn line_numbers() {
bat()
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.arg("multiline.txt")
.arg("--style=numbers")
.arg("--decorations=always")
.assert()
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.success()
.stdout(" 1 line 1\n 2 line 2\n 3 line 3\n 4 line 4\n");
}
#[test]
fn line_range_2_3() {
bat()
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.arg("multiline.txt")
.arg("--line-range=2:3")
.assert()
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.success()
.stdout("line 2\nline 3\n");
}
#[test]
fn line_range_first_two() {
bat()
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.arg("multiline.txt")
.arg("--line-range=:2")
.assert()
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.success()
.stdout("line 1\nline 2\n");
}
#[test]
fn line_range_last_3() {
bat()
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.arg("multiline.txt")
.arg("--line-range=2:")
.assert()
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.success()
.stdout("line 2\nline 3\nline 4\n");
}
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#[test]
fn line_range_multiple() {
bat()
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.arg("multiline.txt")
.arg("--line-range=1:2")
.arg("--line-range=4:4")
.assert()
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.success()
.stdout("line 1\nline 2\nline 4\n");
}
#[test]
fn basic_io_cycle() {
let file_out = Stdio::from(File::open("tests/examples/cycle.txt").unwrap());
bat_raw_command()
.arg("test.txt")
.arg("cycle.txt")
.stdout(file_out)
.assert()
.failure();
}
#[test]
fn stdin_to_stdout_cycle() {
let file_out = Stdio::from(File::open("tests/examples/cycle.txt").unwrap());
let file_in = Stdio::from(File::open("tests/examples/cycle.txt").unwrap());
bat_raw_command()
.stdin(file_in)
.arg("test.txt")
.arg("-")
.stdout(file_out)
.assert()
.failure();
}
#[cfg(unix)]
#[test]
fn no_args_doesnt_break() {
use std::io::Write;
use std::os::unix::io::FromRawFd;
use std::thread;
use clircle::nix::pty::{openpty, OpenptyResult};
use wait_timeout::ChildExt;
// To simulate bat getting started from the shell, a process is created with stdin and stdout
// as the slave end of a pseudo terminal. Although both point to the same "file", bat should
// not exit, because in this case it is safe to read and write to the same fd, which is why
// this test exists.
let OpenptyResult { master, slave } = openpty(None, None).expect("Couldn't open pty.");
let mut master = unsafe { File::from_raw_fd(master) };
let stdin = unsafe { Stdio::from_raw_fd(slave) };
let stdout = unsafe { Stdio::from_raw_fd(slave) };
let mut child = bat_raw_command()
.stdin(stdin)
.stdout(stdout)
.spawn()
.expect("Failed to start.");
// Some time for the child process to start and to make sure, that we can poll the exit status.
// Although this waiting period is not necessary, it is best to keep it in and be absolutely
// sure, that the try_wait does not error later.
thread::sleep(SAFE_CHILD_PROCESS_CREATION_TIME);
// The child process should be running and waiting for input,
// therefore no exit status should be available.
let exit_status = child
.try_wait()
.expect("Error polling exit status, this should never happen.");
assert!(exit_status.is_none());
// Write Ctrl-D (end of transmission) to the pty.
master
.write_all(&[0x04])
.expect("Couldn't write EOT character to master end.");
let exit_status = child
.wait_timeout(CHILD_WAIT_TIMEOUT)
.expect("Error polling exit status, this should never happen.")
.expect("Exit status not set, but the child should have exited already.");
assert!(exit_status.success());
}
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#[test]
fn tabs_numbers() {
bat()
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.arg("tabs.txt")
.arg("--tabs=4")
.arg("--style=numbers")
.arg("--decorations=always")
.assert()
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.success()
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.stdout(
" 1 1 2 3 4
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2 1 ?
3 22 ?
4 333 ?
5 4444 ?
6 55555 ?
7 666666 ?
8 7777777 ?
9 88888888 ?
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",
);
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}
#[test]
fn tabs_passthrough_wrapped() {
bat()
.arg("tabs.txt")
.arg("--tabs=0")
.arg("--style=plain")
.arg("--decorations=always")
.assert()
.success()
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.stdout(
" 1 2 3 4
1 ?
22 ?
333 ?
4444 ?
55555 ?
666666 ?
7777777 ?
88888888 ?
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",
);
}
#[test]
fn tabs_4_wrapped() {
bat()
.arg("tabs.txt")
.arg("--tabs=4")
.arg("--style=plain")
.arg("--decorations=always")
.assert()
.success()
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.stdout(
" 1 2 3 4
1 ?
22 ?
333 ?
4444 ?
55555 ?
666666 ?
7777777 ?
88888888 ?
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",
);
}
#[test]
fn tabs_8_wrapped() {
bat()
.arg("tabs.txt")
.arg("--tabs=8")
.arg("--style=plain")
.arg("--decorations=always")
.assert()
.success()
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.stdout(
" 1 2 3 4
1 ?
22 ?
333 ?
4444 ?
55555 ?
666666 ?
7777777 ?
88888888 ?
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",
);
}
#[test]
fn tabs_passthrough() {
bat()
.arg("tabs.txt")
.arg("--tabs=0")
.arg("--style=plain")
.arg("--decorations=always")
.assert()
.success()
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.stdout(
" 1 2 3 4
1 ?
22 ?
333 ?
4444 ?
55555 ?
666666 ?
7777777 ?
88888888 ?
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",
);
}
#[test]
fn tabs_4() {
bat()
.arg("tabs.txt")
.arg("--tabs=4")
.arg("--style=plain")
.arg("--decorations=always")
.assert()
.success()
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.stdout(
" 1 2 3 4
1 ?
22 ?
333 ?
4444 ?
55555 ?
666666 ?
7777777 ?
88888888 ?
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",
);
}
#[test]
fn tabs_8() {
bat()
.arg("tabs.txt")
.arg("--tabs=8")
.arg("--style=plain")
.arg("--decorations=always")
.assert()
.success()
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.stdout(
" 1 2 3 4
1 ?
22 ?
333 ?
4444 ?
55555 ?
666666 ?
7777777 ?
88888888 ?
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",
);
}
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#[test]
fn fail_non_existing() {
bat().arg("non-existing-file").assert().failure();
}
#[test]
fn fail_directory() {
bat().arg("sub_directory").assert().failure();
}
#[test]
fn do_not_exit_directory() {
bat()
.arg("sub_directory")
.arg("test.txt")
.assert()
.stdout("hello world\n")
.failure();
}
#[test]
fn pager_basic() {
bat()
.env("PAGER", "echo pager-output")
.arg("--paging=always")
.arg("test.txt")
.assert()
.success()
.stdout(predicate::eq("pager-output\n").normalize());
}
#[test]
fn pager_overwrite() {
bat()
.env("PAGER", "echo other-pager")
.env("BAT_PAGER", "echo pager-output")
.arg("--paging=always")
.arg("test.txt")
.assert()
.success()
.stdout(predicate::eq("pager-output\n").normalize());
}
#[test]
fn pager_disable() {
bat()
.env("PAGER", "echo other-pager")
.env("BAT_PAGER", "")
.arg("--paging=always")
.arg("test.txt")
.assert()
.success()
.stdout(predicate::eq("hello world\n").normalize());
}
#[test]
fn pager_value_bat() {
bat()
.arg("--pager=bat")
.arg("--paging=always")
.arg("test.txt")
.assert()
.failure();
}
/// We shall use less instead of most if PAGER is used since PAGER
/// is a generic env var
#[test]
#[serial] // Because of PATH
fn pager_most_from_pager_env_var() {
with_mocked_versions_of_more_and_most_in_path(|| {
// If the output is not "I am most" then we know 'most' is not used
bat()
.env("PAGER", mocked_pager("most"))
.arg("--paging=always")
.arg("test.txt")
.assert()
.success()
.stdout(predicate::eq("hello world\n").normalize());
});
}
/// If the bat-specific BAT_PAGER is used, obey the wish of the user
/// and allow 'most'
#[test]
#[serial] // Because of PATH
fn pager_most_from_bat_pager_env_var() {
with_mocked_versions_of_more_and_most_in_path(|| {
bat()
.env("BAT_PAGER", mocked_pager("most"))
.arg("--paging=always")
.arg("test.txt")
.assert()
.success()
.stdout(predicate::str::contains("I am most"));
});
}
/// Same reasoning with --pager as with BAT_PAGER
#[test]
#[serial] // Because of PATH
fn pager_most_from_pager_arg() {
with_mocked_versions_of_more_and_most_in_path(|| {
bat()
.arg("--paging=always")
.arg(format!("--pager={}", mocked_pager("most")))
.arg("test.txt")
.assert()
.success()
.stdout(predicate::str::contains("I am most"));
});
}
/// Make sure the logic for 'most' applies even if an argument is passed
#[test]
#[serial] // Because of PATH
fn pager_most_with_arg() {
with_mocked_versions_of_more_and_most_in_path(|| {
bat()
.env("PAGER", format!("{} -w", mocked_pager("most")))
.arg("--paging=always")
.arg("test.txt")
.assert()
.success()
.stdout(predicate::eq("hello world\n").normalize());
});
}
/// Sanity check that 'more' is treated like 'most'
#[test]
#[serial] // Because of PATH
fn pager_more() {
with_mocked_versions_of_more_and_most_in_path(|| {
bat()
.env("PAGER", mocked_pager("more"))
.arg("--paging=always")
.arg("test.txt")
.assert()
.success()
.stdout(predicate::eq("hello world\n").normalize());
});
}
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#[test]
fn alias_pager_disable() {
bat()
.env("PAGER", "echo other-pager")
.arg("-P")
.arg("test.txt")
.assert()
.success()
.stdout(predicate::eq("hello world\n").normalize());
}
#[test]
fn alias_pager_disable_long_overrides_short() {
bat()
.env("PAGER", "echo pager-output")
.arg("-P")
.arg("--paging=always")
.arg("test.txt")
.assert()
.success()
.stdout(predicate::eq("pager-output\n").normalize());
}
#[test]
fn pager_failed_to_parse() {
bat()
.env("BAT_PAGER", "mismatched-quotes 'a")
.arg("--paging=always")
.arg("test.txt")
.assert()
.failure()
.stderr(predicate::str::contains("Could not parse pager command"));
}
#[test]
fn config_location_test() {
bat_with_config()
.env("BAT_CONFIG_PATH", "bat.conf")
.arg("--config-file")
.assert()
.success()
.stdout("bat.conf\n");
}
#[test]
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fn config_read_arguments_from_file() {
bat_with_config()
.env("BAT_CONFIG_PATH", "bat.conf")
.arg("test.txt")
.assert()
.success()
.stdout(predicate::eq("dummy-pager-from-config\n").normalize());
}
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#[test]
fn utf16() {
// The output will be converted to UTF-8 with a leading UTF-8 BOM
bat()
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.arg("--plain")
.arg("--decorations=always")
.arg("test_UTF-16LE.txt")
.assert()
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.success()
.stdout(std::str::from_utf8(b"\xEF\xBB\xBFhello world\n").unwrap());
}
#[test]
fn can_print_file_named_cache() {
bat_with_config()
.arg("cache")
.assert()
.success()
.stdout("test\n")
.stderr("");
}
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#[test]
fn can_print_file_named_cache_with_additional_argument() {
bat_with_config()
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.arg("cache")
.arg("test.txt")
.assert()
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.success()
.stdout("test\nhello world\n")
.stderr("");
}
#[test]
fn can_print_file_starting_with_cache() {
bat_with_config()
.arg("cache.c")
.assert()
.success()
.stdout("test\n")
.stderr("");
}
#[test]
fn does_not_print_unwanted_file_named_cache() {
bat_with_config().arg("cach").assert().failure();
}
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#[test]
fn unicode_wrap() {
bat_with_config()
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.arg("unicode-wrap.txt")
.arg("--style=numbers,snip")
.arg("--decorations=always")
.arg("--terminal-width=40")
.assert()
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.success()
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.stdout(
" 1 ビタミンA ビタミンD ビタミンE ビ
K B1 B2
B6
B12
C
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2
3
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4
5 1 2 3 4 5 6
7 8 9 10 11 12
13 14 15 16 17
18 19 20
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6
7 Бельгия Болгария Чехия Дания Герман
ия Эстония Ирландия Греция Испания
Франция Хорватия Италия Кипр Латвия
Литва Люксембург Венгрия Мальта Ни
дерланды Австрия Польша Португалия
Румыния Словения Словакия Финляндия
Швеция Великобритания
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",
);
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}
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#[test]
fn snip() {
bat()
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.arg("multiline.txt")
.arg("--style=numbers,snip")
.arg("--decorations=always")
.arg("--line-range=1:2")
.arg("--line-range=4:")
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.arg("--terminal-width=80")
.assert()
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.success()
.stdout(
" 1 line 1
2 line 2
... 8<
4 line 4
",
);
}
#[test]
fn empty_file_leads_to_empty_output_with_grid_enabled() {
bat()
.arg("empty.txt")
.arg("--style=grid")
.arg("--decorations=always")
.arg("--terminal-width=80")
.assert()
.success()
.stdout("");
}
#[test]
fn empty_file_leads_to_empty_output_with_rule_enabled() {
bat()
.arg("empty.txt")
.arg("--style=rule")
.arg("--decorations=always")
.arg("--terminal-width=80")
.assert()
.success()
.stdout("");
}
#[test]
fn filename_basic() {
bat()
.arg("test.txt")
.arg("--decorations=always")
.arg("--style=header")
.arg("-r=0:0")
.arg("--file-name=foo")
.assert()
.success()
.stdout("File: foo\n")
.stderr("");
}
#[test]
fn filename_binary() {
bat()
.arg("test.binary")
.arg("--decorations=always")
.arg("--style=header")
.arg("-r=0:0")
.arg("--file-name=foo")
.assert()
.success()
.stdout("File: foo <BINARY>\n")
.stderr("");
}
#[test]
fn filename_stdin() {
bat()
.arg("--decorations=always")
.arg("--style=header")
.arg("-r=0:0")
.arg("-")
.write_stdin("stdin\n")
.arg("--file-name=foo")
.assert()
.success()
.stdout("File: foo\n")
.stderr("");
}
#[test]
fn filename_stdin_binary() {
let vec = vec![0; 1];
bat_with_config()
.arg("--decorations=always")
.arg("--style=header")
.write_stdin(vec)
.arg("--file-name=foo")
.assert()
.success()
.stdout("File: foo <BINARY>\n")
.stderr("");
}
#[test]
fn filename_multiple_ok() {
bat()
.arg("--decorations=always")
.arg("--style=header")
.arg("-r=0:0")
.arg("test.txt")
.arg("--file-name=foo")
.arg("single-line.txt")
.arg("--file-name=bar")
.assert()
.success()
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.stdout("File: foo\n\nFile: bar\n")
.stderr("");
}
#[test]
fn filename_multiple_err() {
bat()
.arg("--decorations=always")
.arg("--style=header")
.arg("-r=0:0")
.arg("test.txt")
.arg("--file-name=foo")
.arg("single-line.txt")
.assert()
.failure();
}
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#[test]
fn header_padding() {
bat()
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.arg("--decorations=always")
.arg("--style=header")
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.arg("test.txt")
.arg("single-line.txt")
.assert()
.stdout("File: test.txt\nhello world\n\nFile: single-line.txt\nSingle Line\n")
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.stderr("");
}
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#[test]
fn header_padding_rule() {
bat()
.arg("--decorations=always")
.arg("--style=header,rule")
.arg("--terminal-width=80")
.arg("test.txt")
.arg("single-line.txt")
.assert()
.stdout(
"File: test.txt
hello world
File: single-line.txt
Single Line
",
)
.stderr("");
}
#[test]
fn grid_overrides_rule() {
bat()
.arg("--decorations=always")
.arg("--style=grid,rule")
.arg("--terminal-width=80")
.arg("test.txt")
.arg("single-line.txt")
.assert()
.stdout(
"\
hello world
Single Line
",
)
.stderr("\x1b[33m[bat warning]\x1b[0m: Style 'rule' is a subset of style 'grid', 'rule' will not be visible.\n");
}
#[cfg(target_os = "linux")]
#[test]
fn file_with_invalid_utf8_filename() {
use std::ffi::OsStr;
use std::fs::File;
use std::io::Write;
use std::os::unix::ffi::OsStrExt;
use tempdir::TempDir;
let tmp_dir = TempDir::new("bat_test").expect("can create temporary directory");
let file_path = tmp_dir
.path()
.join(OsStr::from_bytes(b"test-invalid-utf8-\xC3(.rs"));
{
let mut file = File::create(&file_path).expect("can create temporary file");
writeln!(file, "dummy content").expect("can write to file");
}
bat()
.arg(file_path.as_os_str())
.assert()
.success()
.stdout("dummy content\n");
}
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#[test]
fn do_not_panic_regression_tests() {
for filename in &[
"issue_28.md",
"issue_190.md",
"issue_314.hs",
"issue_914.rb",
"issue_915.vue",
] {
bat()
.arg("--color=always")
.arg(&format!("regression_tests/{}", filename))
.assert()
.success();
}
}
#[test]
fn do_not_detect_different_syntax_for_stdin_and_files() {
let file = "regression_tests/issue_985.js";
let cmd_for_file = bat()
.arg("--color=always")
.arg("--map-syntax=*.js:Markdown")
.arg(&format!("--file-name={}", file))
.arg("--style=plain")
.arg(file)
.assert()
.success();
let cmd_for_stdin = bat()
.arg("--color=always")
.arg("--map-syntax=*.js:Markdown")
.arg("--style=plain")
.arg(&format!("--file-name={}", file))
.pipe_stdin(Path::new(EXAMPLES_DIR).join(file))
.unwrap()
.assert()
.success();
assert_eq!(
from_utf8(&cmd_for_file.get_output().stdout).expect("output is valid utf-8"),
from_utf8(&cmd_for_stdin.get_output().stdout).expect("output is valid utf-8")
);
}
#[test]
fn show_all_mode() {
bat()
.arg("--show-all")
.arg("nonprintable.txt")
.assert()
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.stdout("hello·world␊\n├──┤␍␀␇␈␛")
.stderr("");
}
#[test]
fn plain_mode_does_not_add_nonexisting_newline() {
bat()
.arg("--paging=never")
.arg("--color=never")
.arg("--decorations=always")
.arg("--style=plain")
.arg("single-line.txt")
.assert()
.success()
.stdout("Single Line");
}
// Regression test for https://github.com/sharkdp/bat/issues/299
#[test]
fn grid_for_file_without_newline() {
bat()
.arg("--paging=never")
.arg("--color=never")
.arg("--terminal-width=80")
.arg("--wrap=never")
.arg("--decorations=always")
.arg("--style=full")
.arg("single-line.txt")
.assert()
.success()
.stdout(
"\
File: single-line.txt
1 Single Line
",
)
.stderr("");
}