Epoch(22)
    } else if sat < Self::STARTING_SATS[24] {
      Epoch(23)
    } else if sat < Self::STARTING_SATS[25] {
      Epoch(24)
    } else if sat < Self::STARTING_SATS[26] {
      Epoch(25)
    } else if sat < Self::STARTING_SATS[27] {
      Epoch(26)
    } else if sat < Self::STARTING_SATS[28] {
      Epoch(27)
    } else if sat < Self::STARTING_SATS[29] {
      Epoch(28)
    } else if sat < Self::STARTING_SATS[30] {
      Epoch(29)
    } else if sat < Self::STARTING_SATS[31] {
      Epoch(30)
    } else if sat < Self::STARTING_SATS[32] {
      Epoch(31)
    } else if sat < Self::STARTING_SATS[33] {
      Epoch(32)
    } else {
      Epoch(33)
    }
  }
}

impl From<Height> for Epoch {
  fn from(height: Height) -> Self {
    Self(height.0 / SUBSIDY_HALVING_INTERVAL)
  }
}

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

  #[test]
  fn starting_sat() {
    assert_eq!(Epoch(0).starting_sat(), 0);
    assert_eq!(
      Epoch(1).starting_sat(),
      Epoch(0).subsidy() * u64::from(SUBSIDY_HALVING_INTERVAL)