Forked from https://github.com/hyunsik/bytesize .
ByteSize is an utility for human-readable byte count representation.
Features:
- Pre-defined constants for various size units (e.g., B, Kb, Kib, Mb, Mib, Gb, Gib, ... PB)
ByteSizetype which presents size units convertible to different size units.- Artimetic operations for
ByteSize - FromStr impl for
ByteSize, allowing to parse from string size representations like 1.5KiB and 521TiB. - Serde support for binary and human-readable deserializers like JSON
- Use SI format by default with
Display. - Use "KiB" for SI unit.
Considering the changes, the version of foyer-bytesize crate starts from "2" to differ from the original bytesize crate.
Add this to your Cargo.toml:
[dependencies]
bytesize = { package = "foyer-bytesize", version = "2", features = ["serde"]} fn assert_display(expected: &str, b: ByteSize) {
assert_eq!(expected, format!("{}", b));
}
#[test]
fn test_display() {
assert_display("215 B", ByteSize::b(215));
assert_display("1.0 KiB", ByteSize::kib(1));
assert_display("301.0 KiB", ByteSize::kib(301));
assert_display("419.0 MiB", ByteSize::mib(419));
assert_display("518.0 GiB", ByteSize::gib(518));
assert_display("815.0 TiB", ByteSize::tib(815));
assert_display("609.0 PiB", ByteSize::pib(609));
}
#[test]
fn test_display_alignment() {
assert_eq!("|357 B |", format!("|{:10}|", ByteSize(357)));
assert_eq!("| 357 B|", format!("|{:>10}|", ByteSize(357)));
assert_eq!("|357 B |", format!("|{:<10}|", ByteSize(357)));
assert_eq!("| 357 B |", format!("|{:^10}|", ByteSize(357)));
assert_eq!("|-----357 B|", format!("|{:->10}|", ByteSize(357)));
assert_eq!("|357 B-----|", format!("|{:-<10}|", ByteSize(357)));
assert_eq!("|--357 B---|", format!("|{:-^10}|", ByteSize(357)));
}
fn assert_to_string(expected: &str, b: ByteSize, si: bool) {
assert_eq!(expected.to_string(), b.to_string_as(si));
}
#[test]
fn test_to_string_as() {
assert_to_string("215 B", ByteSize::b(215), true);
assert_to_string("215 B", ByteSize::b(215), false);
assert_to_string("1.0 KiB", ByteSize::kib(1), true);
assert_to_string("1.0 KB", ByteSize::kib(1), false);
assert_to_string("293.9 KiB", ByteSize::kb(301), true);
assert_to_string("301.0 KB", ByteSize::kb(301), false);
assert_to_string("1.0 MiB", ByteSize::mib(1), true);
assert_to_string("1048.6 KB", ByteSize::mib(1), false);
// a bug case: https://github.com/flang-project/bytesize/issues/8
assert_to_string("1.9 GiB", ByteSize::mib(1907), true);
assert_to_string("2.0 GB", ByteSize::mib(1908), false);
assert_to_string("399.6 MiB", ByteSize::mb(419), true);
assert_to_string("419.0 MB", ByteSize::mb(419), false);
assert_to_string("482.4 GiB", ByteSize::gb(518), true);
assert_to_string("518.0 GB", ByteSize::gb(518), false);
assert_to_string("741.2 TiB", ByteSize::tb(815), true);
assert_to_string("815.0 TB", ByteSize::tb(815), false);
assert_to_string("540.9 PiB", ByteSize::pb(609), true);
assert_to_string("609.0 PB", ByteSize::pb(609), false);
}use bytesize::ByteSize;
fn byte_arithmetic_operator() {
let x = ByteSize::mb(1);
let y = ByteSize::kb(100);
let plus = x y;
print!("{}", plus);
let minus = ByteSize::tb(100) ByteSize::gb(4);
print!("{}", minus);
}