use std::ffi::OsString; use gix_command::parse::{self, Outcome}; #[test]fn words_are_split_without_expansion() -> gix_testtools::Result {    assert_eq!(        command_line(            r#"cmd 'single quoted' "double \"quoted\"" escaped\ word "kept\q" "" # ignorednext"#,        ),        Ok(Outcome {            env: Vec::new(),            command: "cmd".into(),            args: args(&[                "single quoted",                "double \"quoted\"",                "escaped word",                r"kept\q",                "",                "next"            ]),        })    );    assert_eq!(        command_line("cmd one\\\ntwo")?.args,        args(&["onetwo"]),        "a backslash-newline continues the line without becoming part of the word"    );    Ok(())} #[test]fn assignments_are_returned_separately() -> gix_testtools::Result {    assert_eq!(        command_line(r#" FIRST=one SECOND="two words" _THIRD='' command arg"#)?,        Outcome {            env: vec![                ("FIRST".into(), "one".into()),                ("SECOND".into(), "two words".into()),                ("_THIRD".into(), OsString::new()),            ],            command: "command".into(),            args: args(&["arg"]),        }    );    Ok(())} #[test]fn invalid_assignment_names_are_arguments() -> gix_testtools::Result {    for (input, expected) in [        ("tool-name=value arg", &["tool-name=value", "arg"]),        (r#"'FOO'=bar command"#, &["FOO=bar", "command"]),        (r#"F"OO"=bar command"#, &["FOO=bar", "command"]),    ] {        let outcome = command_line(input)?;        assert_eq!(outcome.env, [], "{input:?} has no assignment prefix");        assert_eq!(outcome.command, expected[0], "{input:?} is the command");        assert_eq!(outcome.args, args(&expected[1..]));    }    Ok(())} #[test]fn unterminated_quotes_are_rejected() {    assert_eq!(command_line("cmd '"), Err(parse::Error::MissingClosingQuote));    assert_eq!(command_line("cmd \""), Err(parse::Error::MissingClosingQuote));    assert_eq!(command_line("cmd \"\\"), Err(parse::Error::MissingClosingQuote));} #[test]fn dangling_unquoted_escape_is_rejected() {    assert_eq!(command_line("cmd arg\\"), Err(parse::Error::MissingEscapedByte));} #[test]fn a_command_is_required() {    for input in ["", " ", "\t\n", "# comment", "\\\n", "tool=name", "FOO=one BAR=two"] {        assert_eq!(command_line(input), Err(parse::Error::MissingCommand), "{input:?}");    }} #[test]#[cfg(unix)]fn non_utf8_input_is_preserved() -> gix_testtools::Result {    use bstr::ByteSlice;    use std::os::unix::ffi::OsStringExt;     assert_eq!(        parse::command_line(b"FOO=\xff cmd \xfe".as_bstr())?,        Outcome {            env: vec![("FOO".into(), OsString::from_vec(vec![0xff]))],            command: "cmd".into(),            args: vec![OsString::from_vec(vec![0xfe])],        }    );    Ok(())} fn command_line(input: &str) -> Result<Outcome, parse::Error> {    parse::command_line(input.into())} fn args(input: &[&str]) -> Vec<OsString> {    input.iter().map(|arg| (*arg).into()).collect()}