pub fn format_file_size(size: u64, use_decimal: bool) -> String { if use_decimal { if size < 1000 { format!("{size}B") } else if size < 1000 * 1000 { format!("{:.1}KB", size as f64 / 1000.0) } else { format!("{:.1}MB", size as f64 / (1000.0 * 1000.0)) } } else if size < 1024 { format!("{size}B") } else if size < 1024 * 1024 { format!("{:.1}KiB", size as f64 / 1024.0) } else { format!("{:.1}MiB", size as f64 / (1024.0 * 1024.0)) }} #[cfg(test)]mod tests { use super::*; #[test] fn test_format_file_size_decimal() { assert_eq!(format_file_size(0, true), "0B"); assert_eq!(format_file_size(999, true), "999B"); assert_eq!(format_file_size(1000, true), "1.0KB"); assert_eq!(format_file_size(1500, true), "1.5KB"); assert_eq!(format_file_size(999999, true), "1000.0KB"); assert_eq!(format_file_size(1000000, true), "1.0MB"); assert_eq!(format_file_size(1500000, true), "1.5MB"); assert_eq!(format_file_size(10000000, true), "10.0MB"); } #[test] fn test_format_file_size_binary() { assert_eq!(format_file_size(0, false), "0B"); assert_eq!(format_file_size(1023, false), "1023B"); assert_eq!(format_file_size(1024, false), "1.0KiB"); assert_eq!(format_file_size(1536, false), "1.5KiB"); assert_eq!(format_file_size(1048575, false), "1024.0KiB"); assert_eq!(format_file_size(1048576, false), "1.0MiB"); assert_eq!(format_file_size(1572864, false), "1.5MiB"); assert_eq!(format_file_size(10485760, false), "10.0MiB"); }}
pub fn format_file_size(size: u64, use_decimal: bool) -> String {
if use_decimal {
if size < 1000 {
format!("{size}B")
} else if size < 1000 * 1000 {
format!("{:.1}KB", size as f64 / 1000.0)
} else {
format!("{:.1}MB", size as f64 / (1000.0 * 1000.0))
}
} else if size < 1024 {
format!("{size}B")
} else if size < 1024 * 1024 {
format!("{:.1}KiB", size as f64 / 1024.0)
} else {
format!("{:.1}MiB", size as f64 / (1024.0 * 1024.0))
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_format_file_size_decimal() {
assert_eq!(format_file_size(0, true), "0B");
assert_eq!(format_file_size(999, true), "999B");
assert_eq!(format_file_size(1000, true), "1.0KB");
assert_eq!(format_file_size(1500, true), "1.5KB");
assert_eq!(format_file_size(999999, true), "1000.0KB");
assert_eq!(format_file_size(1000000, true), "1.0MB");
assert_eq!(format_file_size(1500000, true), "1.5MB");
assert_eq!(format_file_size(10000000, true), "10.0MB");
}
#[test]
fn test_format_file_size_binary() {
assert_eq!(format_file_size(0, false), "0B");
assert_eq!(format_file_size(1023, false), "1023B");
assert_eq!(format_file_size(1024, false), "1.0KiB");
assert_eq!(format_file_size(1536, false), "1.5KiB");
assert_eq!(format_file_size(1048575, false), "1024.0KiB");
assert_eq!(format_file_size(1048576, false), "1.0MiB");
assert_eq!(format_file_size(1572864, false), "1.5MiB");
assert_eq!(format_file_size(10485760, false), "10.0MiB");
}
}