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// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
/// A function that converts a float to a string the represents a human/// readable version of that number.pub fn human_size(size: f64) -> String {  let negative = if size.is_sign_positive() { "" } else { "-" };  let size = size.abs();  let units = ["B", "KB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB"];  if size < 1_f64 {    return format!("{}{}{}", negative, size, "B");  }  let delimiter = 1024_f64;  let exponent = std::cmp::min(    (size.ln() / delimiter.ln()).floor() as i32,    (units.len() - 1) as i32,  );  let pretty_bytes = format!("{:.2}", size / delimiter.powi(exponent))    .parse::<f64>()    .unwrap()    * 1_f64;  let unit = units[exponent as usize];  format!("{}{}{}", negative, pretty_bytes, unit)}
/// A function that converts a milisecond elapsed time to a string that/// represents a human readable version of that time.pub fn human_elapsed(elapsed: u128) -> String {  if elapsed < 1_000 {    return format!("{}ms", elapsed);  }  if elapsed < 1_000 * 60 {    return format!("{}s", elapsed / 1000);  }
  let seconds = elapsed / 1_000;  let minutes = seconds / 60;  let seconds_remainder = seconds % 60;  format!("{}m{}s", minutes, seconds_remainder)}
#[cfg(test)]mod tests {  use super::*;
  #[test]  fn test_human_size() {    assert_eq!(human_size(1_f64), "1B");    assert_eq!(human_size((12 * 1024) as f64), "12KB");    assert_eq!(human_size((24_i64 * 1024 * 1024) as f64), "24MB");    assert_eq!(human_size((24_i64 * 1024 * 1024 * 1024) as f64), "24GB");    assert_eq!(      human_size((24_i64 * 1024 * 1024 * 1024 * 1024) as f64),      "24TB"    );  }
  #[test]  fn test_human_elapsed() {    assert_eq!(human_elapsed(1), "1ms");    assert_eq!(human_elapsed(256), "256ms");    assert_eq!(human_elapsed(1000), "1s");    assert_eq!(human_elapsed(1001), "1s");    assert_eq!(human_elapsed(1020), "1s");    assert_eq!(human_elapsed(70 * 1000), "1m10s");    assert_eq!(human_elapsed(86 * 1000 + 100), "1m26s");  }}