aris_2 0.1.2

Package #1
Documentation 
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use crate::generated::programs::WHIRLPOOL_ID;
use solana_program::program_error::ProgramError;
use solana_program::pubkey::Pubkey;

pub fn get_position_address(position_mint: &Pubkey) -> Result<(Pubkey, u8), ProgramError> {
    let seeds = &[b"position", position_mint.as_ref()];

    Pubkey::try_find_program_address(seeds, &WHIRLPOOL_ID).ok_or(ProgramError::InvalidSeeds)
}

#[cfg(test)]
mod tests {
    use super::*;
    use std::str::FromStr;

    #[test]
    fn test_get_position_address() {
        let position_mint =
            Pubkey::from_str("6sf6fSK6tTubFA2LMCeTzt4c6DeNVyA6WpDDgtWs7a5p").unwrap();
        let position = Pubkey::from_str("2EtH4ZZStW8Ffh2CbbW4baekdtWgPLcBXfYQ6FRmMVsq").unwrap();
        let (address, _) = get_position_address(&position_mint).unwrap();
        assert_eq!(address, position);
    }
}