vendor/itoa-0.3.4/tests/test.rs

   1 #![cfg_attr(feature = "i128", feature(i128_type, i128))]
   2
   3 #![cfg_attr(feature = "cargo-clippy", allow(cast_lossless, string_lit_as_bytes))]
   4
   5 #![allow(non_snake_case)]
   6
   7 extern crate itoa;
   8
   9 macro_rules! test {
  10     (
  11         $(
  12             $(#[$attr:meta])*
  13             $name:ident($value:expr, $expected:expr)
  14         ),*
  15     ) => {
  16         $(
  17             $(#[$attr])*
  18             #[test]
  19             fn $name() {
  20                 let mut buf = [b'\0'; 40];
  21                 let len = itoa::write(&mut buf[..], $value).unwrap();
  22                 assert_eq!(&buf[0..len], $expected.as_bytes());
  23             }
  24         )*
  25     }
  26 }
  27
  28 test!{
  29     test_u64_0(0u64, "0"),
  30     test_u64_half(<u32>::max_value() as u64, "4294967295"),
  31     test_u64_max(<u64>::max_value(), "18446744073709551615"),
  32     test_i64_min(<i64>::min_value(), "-9223372036854775808"),
  33
  34     test_i16_0(0i16, "0"),
  35     test_i16_min(<i16>::min_value(), "-32768"),
  36
  37     #[cfg(feature = "i128")]
  38     test_u128_0(0u128, "0"),
  39     #[cfg(feature = "i128")]
  40     test_u128_max(<u128>::max_value(), "340282366920938463463374607431768211455"),
  41     #[cfg(feature = "i128")]
  42     test_i128_min(<i128>::min_value(), "-170141183460469231731687303715884105728")
  43 }