rs_poker 5.0.0

A library to help with any Rust code dealing with poker. This includes card values, suits, hands, hand ranks, 5 card hand strength calculation, 7 card hand strength calulcation, and monte carlo game simulation helpers.
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use async_trait::async_trait;

use super::Historian;

/// A no-op historian that discards all recorded actions.
///
/// Useful when you need a historian but don't care about the history.
pub struct NullHistorian;

#[async_trait]
impl Historian for NullHistorian {
    async fn record_action(
        &mut self,
        _id: u128,
        _game_state: &crate::arena::GameState,
        _action: &crate::arena::action::Action,
    ) -> Result<(), super::HistorianError> {
        Ok(())
    }
}

#[cfg(test)]
mod tests {
    use super::*;
    use crate::arena::GameStateBuilder;
    use crate::arena::action::{Action, GameStartPayload};

    #[tokio::test(flavor = "current_thread")]
    async fn test_null_historian_accepts_actions() {
        let mut historian = NullHistorian;
        let game_state = GameStateBuilder::new()
            .num_players_with_stack(2, 100.0)
            .blinds(10.0, 5.0)
            .build()
            .unwrap();
        let action = Action::GameStart(GameStartPayload {
            ante: 0.0,
            small_blind: 5.0,
            big_blind: 10.0,
        });

        let result = historian.record_action(123, &game_state, &action).await;
        assert!(result.is_ok());
    }
}