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/// Represent the status of a step in a roadmap.
///
/// The unknown status allows the user to not specify the status, and
/// the roadmap to infer it from the structure of the graph. For
/// example, a step is inferred to be blocked if any of it
/// dependencies are not finished.
#[derive(Clone, Copy, Debug, Eq, PartialEq)]
pub enum Status {
Unknown,
Goal,
Finished,
Ready,
Next,
Blocked,
}
impl Status {
pub fn from_text(text: &str) -> Option<Status> {
match text {
"" => Some(Status::Unknown),
"goal" => Some(Status::Goal),
"finished" => Some(Status::Finished),
"ready" => Some(Status::Ready),
"next" => Some(Status::Next),
"blocked" => Some(Status::Blocked),
_ => None,
}
}
}
#[cfg(test)]
mod test {
use super::Status;
#[test]
fn happy_from_text() {
assert_eq!(Status::from_text("").unwrap(), Status::Unknown);
assert_eq!(Status::from_text("goal").unwrap(), Status::Goal);
assert_eq!(Status::from_text("finished").unwrap(), Status::Finished);
assert_eq!(Status::from_text("ready").unwrap(), Status::Ready);
assert_eq!(Status::from_text("next").unwrap(), Status::Next);
assert_eq!(Status::from_text("blocked").unwrap(), Status::Blocked);
}
#[test]
fn sad_from_text() {
let x = Status::from_text("x");
assert_eq!(x, None);
}
}
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