nu-command 0.114.0

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

#[test]
fn for_doesnt_auto_print_in_each_iteration() {
    let actual = nu!("
        for i in 1..2 {
            $i
        }");
    // Make sure we don't see any of these values in the output
    // As we do not auto-print loops anymore
    assert!(!actual.out.contains('1'));
}

#[test]
fn for_break_on_external_failed() {
    let actual = nu!("
        for i in 1..2 {
            print 1;
            nu --testbin fail
        }");
    // Note: nu! macro auto replace "\n" and "\r\n" with ""
    // so our output will be `1`
    assert_eq!(actual.out, "1");
}

#[test]
fn failed_for_should_break_running() {
    let actual = nu!("
        for i in 1..2 {
            nu --testbin fail
        }
        print 3");
    assert!(!actual.out.contains('3'));

    let actual = nu!("
        let x = [1 2]
        for i in $x {
            nu --testbin fail
        }
        print 3");
    assert!(!actual.out.contains('3'));
}

#[test]
fn for_loops_dont_collect_source() {
    let actual = nu!("
        for i in (seq 1 10 | each { print -n $in; $in}) {
            print -n $i
            if $i >= 5 { break }
        }
    ");
    assert_eq!(actual.out, "1122334455");
}

// Regression test for https://github.com/nushell/nushell/issues/13746
// Passing a non-block (e.g. the loop variable) as the `for` block used to panic
// on the `.expect("internal error: missing block")` in `for`'s `run`. It must
// surface a clean error instead and never panic.
#[test]
fn for_with_non_block_body_errors_without_panic() {
    for src in ["for i in [1 2 3] $i", "for i in [] $i"] {
        let actual = nu!(src);
        assert!(actual.err.contains("invalid_keyword_call"));
        assert!(!actual.err.to_lowercase().contains("panic"));
    }
}