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#[derive(PartialEq)]
pub enum State {
Initializing = 0,
StateSyncing = 1,
Bootstrapping = 2,
NormalOp = 3,
}
impl State {
pub fn as_str(&self) -> &str {
match self {
State::Initializing => "Initializing state",
State::StateSyncing => "State syncing state",
State::Bootstrapping => "Bootstrapping state",
State::NormalOp => "Normal operations state",
}
}
}
impl TryFrom<u32> for State {
type Error = ();
fn try_from(kind: u32) -> std::result::Result<Self, Self::Error> {
match kind {
kind if kind == State::Initializing as u32 => Ok(State::Initializing),
kind if kind == State::StateSyncing as u32 => Ok(State::StateSyncing),
kind if kind == State::Bootstrapping as u32 => Ok(State::Bootstrapping),
kind if kind == State::NormalOp as u32 => Ok(State::NormalOp),
_ => Err(()),
}
}
}
#[test]
fn test_state() {
let s = State::try_from(0).unwrap();
assert!(matches!(s, State::Initializing));
assert!(s.as_str() == "Initializing state");
let s = State::try_from(1).unwrap();
assert!(matches!(s, State::StateSyncing));
assert!(s.as_str() == "State syncing state");
let s = State::try_from(2).unwrap();
assert!(matches!(s, State::Bootstrapping));
assert!(s.as_str() == "Bootstrapping state");
let s = State::try_from(3).unwrap();
assert!(matches!(s, State::NormalOp));
assert!(s.as_str() == "Normal operations state");
}
