nushell/crates/nu-command/tests/commands/which.rs

use nu_test_support::nu;

#[test]
fn which_ls() {
    let actual = nu!(
        cwd: ".",
        "which ls | get path | str trim"
    );

    assert_eq!(actual.out, "Nushell built-in command");
}

#[test]
fn which_alias_ls() {
    let actual = nu!(
        cwd: ".",
        "alias ls = ls -a; which ls | get path | str trim"
    );

    assert_eq!(actual.out, "Nushell alias: ls -a");
}

#[test]
fn which_def_ls() {
    let actual = nu!(
        cwd: ".",
        "def ls [] {echo def}; which ls | get path | str trim"
    );

    assert_eq!(actual.out, "Nushell custom command");
}

#[test]
fn correct_precedence_alias_def_custom() {
    let actual = nu!(
        cwd: ".",
        "def ls [] {echo def}; alias ls = echo alias; which ls | get path | str trim"
    );

    assert_eq!(actual.out, "Nushell alias: echo alias");
}

#[test]
fn multiple_reports_for_alias_def_custom() {
    let actual = nu!(
        cwd: ".",
        "def ls [] {echo def}; alias ls = echo alias; which -a ls | length"
    );

    let length: i32 = actual.out.parse().unwrap();
    assert!(length >= 3);
}

// `get_aliases_with_name` and `get_custom_commands_with_name` don't return the correct count of
// values
// I suspect this is due to the ScopeFrame getting discarded at '}' and the command is then
// executed in the parent scope
// See: parse_definition, line 2187 for reference.
#[ignore]
#[test]
fn multiple_reports_of_multiple_alias() {
    let actual = nu!(
        cwd: ".",
        "alias xaz = echo alias1; def helper [] {alias xaz = echo alias2; which -a xaz}; helper | length"
    );

    let length: i32 = actual.out.parse().unwrap();
    assert_eq!(length, 2);
}

#[ignore]
#[test]
fn multiple_reports_of_multiple_defs() {
    let actual = nu!(
        cwd: ".",
        "def xaz [] {echo def1}; def helper [] { def xaz [] { echo def2 }; which -a xaz }; helper | length"
    );

    let length: i32 = actual.out.parse().unwrap();
    assert_eq!(length, 2);
}

//Fails due to ParserScope::add_definition
// frame.custom_commands.insert(name.clone(), block.clone());
// frame.commands.insert(name, whole_stream_command(block));
#[ignore]
#[test]
fn def_only_seen_once() {
    let actual = nu!(
        cwd: ".",
        "def xaz [] {echo def1}; which -a xaz | length"
    );
    //length is 2. One custom_command (def) one built in ("wrongly" added)
    let length: i32 = actual.out.parse().unwrap();
    assert_eq!(length, 1);
}