nu-command 0.112.2

Nushell's built-in commands
Documentation 
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use nu_test_support::nu;

#[test]
fn capture_errors_works() {
    let actual = nu!("do -c {$env.use}");

    eprintln!("actual.err: {:?}", actual.err);

    assert!(actual.err.contains("column_not_found"));
}

// TODO: need to add tests under display_error.exit_code = true
#[test]
fn capture_errors_works_for_external() {
    let actual = nu!("do -c {nu --testbin fail}");
    assert!(!actual.status.success());
    assert!(!actual.err.contains("exited with code"));
}

// TODO: need to add tests under display_error.exit_code = true
#[test]
fn capture_errors_works_for_external_with_pipeline() {
    let actual = nu!("do -c {nu --testbin fail} | echo `text`");
    assert!(!actual.status.success());
    assert!(!actual.err.contains("exited with code"));
}

// TODO: need to add tests under display_error.exit_code = true
#[test]
fn capture_errors_works_for_external_with_semicolon() {
    let actual = nu!("do -c {nu --testbin fail}; echo `text`");
    assert!(!actual.status.success());
    assert!(!actual.err.contains("exited with code"));
}

#[test]
fn do_with_semicolon_break_on_failed_external() {
    let actual = nu!("do { nu --not_exist_flag }; `text`");

    assert_eq!(actual.out, "");
}

#[test]
fn ignore_error_should_work_for_external_command() {
    let actual = nu!("do -i { nu --testbin fail 1 }; echo post");

    assert_eq!(actual.err, "");
    assert_eq!(actual.out, "post");
}

#[test]
fn ignore_error_works_with_list_stream() {
    let actual = nu!(r#"do -i { ["a", null, "b"] | ansi strip }"#);
    assert!(actual.err.is_empty());
}

#[test]
fn run_closure_with_do_using() {
    let actual = nu!("let x = {let var = 3; $var}; do $x");
    assert!(actual.err.is_empty());
    assert_eq!(actual.out, "3");
}

#[test]
fn required_argument_type_checked() {
    let actual = nu!("do {|x: string| $x} 4");
    assert!(actual.out.is_empty());
    assert!(actual.err.contains("nu::shell::cant_convert"));
}

#[test]
fn optional_argument_type_checked() {
    let actual = nu!("do {|x?: string| $x} 4");
    assert_eq!(actual.out, "");
    assert!(actual.err.contains("nu::shell::cant_convert"));
}