ibc-core-host 0.57.0

Maintained by `ibc-rs`, contains essential top-level traits designed for the seamless integration of host chains, facilitating access to the host's storage, the efficient retrieval of states and metadata crucial for the execution of any IBC datagrams.
Documentation 
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use core::time::Duration;

pub fn calculate_block_delay(
    delay_period_time: &Duration,
    max_expected_time_per_block: &Duration,
) -> u64 {
    let delay_period_time = delay_period_time.as_secs();
    let max_expected_time_per_block = max_expected_time_per_block.as_secs();
    if max_expected_time_per_block == 0 {
        return 0;
    }
    if delay_period_time % max_expected_time_per_block == 0 {
        return delay_period_time / max_expected_time_per_block;
    }

    // TODO: Use `u64::div_ceil` here instead
    (delay_period_time / max_expected_time_per_block) + 1
}

#[cfg(test)]
mod tests {

    use rstest::rstest;

    use super::*;

    #[rstest]
    #[case::remainder_zero(10, 2, 5)]
    #[case::remainder_not_zero(10, 3, 4)]
    #[case::max_expected_zero(10, 0, 0)]
    #[case::delay_period_zero(0, 2, 0)]
    #[case::both_zero(0, 0, 0)]
    #[case::delay_less_than_max(10, 11, 1)]
    fn test_calculate_block_delay_zero(
        #[case] delay_period_time: u64,
        #[case] max_expected_time_per_block: u64,
        #[case] expected: u64,
    ) {
        assert_eq!(
            calculate_block_delay(
                &Duration::from_secs(delay_period_time),
                &Duration::from_secs(max_expected_time_per_block)
            ),
            expected
        );
    }
}