use std::convert::TryFrom; use git_config_value::Boolean; use crate::b; #[test]fn from_str_false() -> crate::Result {    assert!(!Boolean::try_from(b("no"))?.0);    assert!(!Boolean::try_from(b("off"))?.0);    assert!(!Boolean::try_from(b("false"))?.0);    assert!(!Boolean::try_from(b("0"))?.0);    assert!(!Boolean::try_from(b(""))?.0);    Ok(())} #[test]fn from_str_true() -> crate::Result {    assert_eq!(Boolean::try_from(b("yes")).map(Into::into), Ok(true));    assert_eq!(Boolean::try_from(b("on")), Ok(Boolean(true)));    assert_eq!(Boolean::try_from(b("true")), Ok(Boolean(true)));    assert!(Boolean::try_from(b("1"))?.0);    assert!(Boolean::try_from(b("+10"))?.0);    assert!(Boolean::try_from(b("-1"))?.0);    Ok(())} #[test]fn ignores_case() {    // Random subset    for word in &["no", "yes", "on", "off", "true", "false"] {        let first: bool = Boolean::try_from(b(word)).unwrap().into();        let second: bool = Boolean::try_from(b(&*word.to_uppercase())).unwrap().into();        assert_eq!(first, second);    }} #[test]fn from_str_err() {    assert!(Boolean::try_from(b("yesn't")).is_err());    assert!(Boolean::try_from(b("yesno")).is_err());}