bat/tests/integration_tests.rs

use assert_cmd::assert::OutputAssertExt;
use assert_cmd::cargo::CommandCargoExt;
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;

#[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);

fn bat_raw_command() -> Command {
    let mut cmd = Command::cargo_bin("bat").unwrap();
    cmd.current_dir("tests/examples");
    cmd.env_remove("PAGER");
    cmd.env_remove("BAT_PAGER");
    cmd.env_remove("BAT_CONFIG_PATH");
    cmd.env_remove("BAT_STYLE");
    cmd.env_remove("BAT_THEME");
    cmd.env_remove("BAT_TABS");
    cmd
}

fn bat_with_config() -> assert_cmd::Command {
    assert_cmd::Command::from_std(bat_raw_command())
}

fn bat() -> assert_cmd::Command {
    let mut cmd = bat_with_config();
    cmd.arg("--no-config");
    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());

    // 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);
}

#[test]
fn basic() {
    bat()
        .arg("test.txt")
        .assert()
        .success()
        .stdout("hello world\n")
        .stderr("");
}

#[test]
fn stdin() {
    bat()
        .write_stdin("foo\nbar\n")
        .assert()
        .success()
        .stdout("foo\nbar\n");
}

#[test]
fn concatenate() {
    bat()
        .arg("test.txt")
        .arg("test.txt")
        .assert()
        .success()
        .stdout("hello world\nhello world\n");
}

#[test]
fn concatenate_stdin() {
    bat()
        .arg("test.txt")
        .arg("-")
        .arg("test.txt")
        .write_stdin("stdin\n")
        .assert()
        .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");
}

#[test]
fn line_numbers() {
    bat()
        .arg("multiline.txt")
        .arg("--style=numbers")
        .arg("--decorations=always")
        .assert()
        .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()
        .arg("multiline.txt")
        .arg("--line-range=2:3")
        .assert()
        .success()
        .stdout("line 2\nline 3\n");
}

#[test]
fn line_range_first_two() {
    bat()
        .arg("multiline.txt")
        .arg("--line-range=:2")
        .assert()
        .success()
        .stdout("line 1\nline 2\n");
}

#[test]
fn line_range_last_3() {
    bat()
        .arg("multiline.txt")
        .arg("--line-range=2:")
        .assert()
        .success()
        .stdout("line 2\nline 3\nline 4\n");
}

#[test]
fn line_range_multiple() {
    bat()
        .arg("multiline.txt")
        .arg("--line-range=1:2")
        .arg("--line-range=4:4")
        .assert()
        .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());
}

#[test]
fn tabs_numbers() {
    bat()
        .arg("tabs.txt")
        .arg("--tabs=4")
        .arg("--style=numbers")
        .arg("--decorations=always")
        .assert()
        .success()
        .stdout(
            "   1     1   2   3   4
   2 1   ?
   3 22  ?
   4 333 ?
   5 4444    ?
   6 55555   ?
   7 666666  ?
   8 7777777 ?
   9 88888888    ?
",
        );
}

#[test]
fn tabs_passthrough_wrapped() {
    bat()
        .arg("tabs.txt")
        .arg("--tabs=0")
        .arg("--style=plain")
        .arg("--decorations=always")
        .assert()
        .success()
        .stdout(
            "	1	2	3	4
1	?
22	?
333	?
4444	?
55555	?
666666	?
7777777	?
88888888	?
",
        );
}

#[test]
fn tabs_4_wrapped() {
    bat()
        .arg("tabs.txt")
        .arg("--tabs=4")
        .arg("--style=plain")
        .arg("--decorations=always")
        .assert()
        .success()
        .stdout(
            "    1   2   3   4
1   ?
22  ?
333 ?
4444    ?
55555   ?
666666  ?
7777777 ?
88888888    ?
",
        );
}

#[test]
fn tabs_8_wrapped() {
    bat()
        .arg("tabs.txt")
        .arg("--tabs=8")
        .arg("--style=plain")
        .arg("--decorations=always")
        .assert()
        .success()
        .stdout(
            "        1       2       3       4
1       ?
22      ?
333     ?
4444    ?
55555   ?
666666  ?
7777777 ?
88888888        ?
",
        );
}

#[test]
fn tabs_passthrough() {
    bat()
        .arg("tabs.txt")
        .arg("--tabs=0")
        .arg("--style=plain")
        .arg("--decorations=always")
        .assert()
        .success()
        .stdout(
            "	1	2	3	4
1	?
22	?
333	?
4444	?
55555	?
666666	?
7777777	?
88888888	?
",
        );
}

#[test]
fn tabs_4() {
    bat()
        .arg("tabs.txt")
        .arg("--tabs=4")
        .arg("--style=plain")
        .arg("--decorations=always")
        .assert()
        .success()
        .stdout(
            "    1   2   3   4
1   ?
22  ?
333 ?
4444    ?
55555   ?
666666  ?
7777777 ?
88888888    ?
",
        );
}

#[test]
fn tabs_8() {
    bat()
        .arg("tabs.txt")
        .arg("--tabs=8")
        .arg("--style=plain")
        .arg("--decorations=always")
        .assert()
        .success()
        .stdout(
            "        1       2       3       4
1       ?
22      ?
333     ?
4444    ?
55555   ?
666666  ?
7777777 ?
88888888        ?
",
        );
}

#[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());
    });
}

#[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]
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());
}

#[test]
fn utf16() {
    // The output will be converted to UTF-8 with a leading UTF-8 BOM
    bat()
        .arg("--plain")
        .arg("--decorations=always")
        .arg("test_UTF-16LE.txt")
        .assert()
        .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("");
}

#[test]
fn can_print_file_named_cache_with_additional_argument() {
    bat_with_config()
        .arg("cache")
        .arg("test.txt")
        .assert()
        .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();
}

#[test]
fn unicode_wrap() {
    bat_with_config()
        .arg("unicode-wrap.txt")
        .arg("--style=numbers,snip")
        .arg("--decorations=always")
        .arg("--terminal-width=40")
        .assert()
        .success()
        .stdout(
            "   1 ビタミンA  ビタミンD  ビタミンE  ビ
     タミンK  ビタミンB1  ビタミンB2  ナ
     イアシン  パントテン酸  ビタミンB6 
      ビタミンB12  葉酸  ビオチン  ビタ
     ミンC
   2 
   3 고양이 고양이 고양이 고양이 고양이 
     고양이 고양이 고양이 고양이 고양이 
     고양이 고양이 고양이 고양이 고양이 
     고양이 고양이 고양이 고양이 고양이 
     고양이 고양이 고양이 고양이 고양이 
     고양이 고양이 고양이 고양이 고양이 
     고양이 고양이 고양이 고양이 고양이 
     고양이 고양이 고양이 고양이 고양이 
     고양이
   4 
   5 1 บวก 2 บวก 3 บวก 4 บวก 5 บวก 6 บวก
      7 บวก 8 บวก 9 บวก 10 บวก 11 บวก 12
      บวก 13 บวก 14 บวก 15 บวก 16 บวก 17
      บวก 18 บวก 19 บวก 20
   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
",
        );
}

#[test]
fn snip() {
    bat()
        .arg("multiline.txt")
        .arg("--style=numbers,snip")
        .arg("--decorations=always")
        .arg("--line-range=1:2")
        .arg("--line-range=4:")
        .arg("--terminal-width=80")
        .assert()
        .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()
        .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();
}

#[test]
fn header_padding() {
    bat()
        .arg("--decorations=always")
        .arg("--style=header")
        .arg("test.txt")
        .arg("single-line.txt")
        .assert()
        .stdout("File: test.txt\nhello world\n\nFile: single-line.txt\nSingle Line\n")
        .stderr("");
}

#[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");
}

#[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()
        .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("");
}