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#[test]
fn test_format_int() {
// Formatting integers should select the right implementation based off
// the type of the argument. Also, hex/octal/binary should be defined
// for integers, but they shouldn't emit the negative sign.
assert!(format!("{}", 1isize) == "1");
assert!(format!("{}", 1i8) == "1");
assert!(format!("{}", 1i16) == "1");
assert!(format!("{}", 1i32) == "1");
assert!(format!("{}", 1i64) == "1");
assert!(format!("{}", -1isize) == "-1");
assert!(format!("{}", -1i8) == "-1");
assert!(format!("{}", -1i16) == "-1");
assert!(format!("{}", -1i32) == "-1");
assert!(format!("{}", -1i64) == "-1");
assert!(format!("{:?}", 1isize) == "1");
assert!(format!("{:?}", 1i8) == "1");
assert!(format!("{:?}", 1i16) == "1");
assert!(format!("{:?}", 1i32) == "1");
assert!(format!("{:?}", 1i64) == "1");
assert!(format!("{:b}", 1isize) == "1");
assert!(format!("{:b}", 1i8) == "1");
assert!(format!("{:b}", 1i16) == "1");
assert!(format!("{:b}", 1i32) == "1");
assert!(format!("{:b}", 1i64) == "1");
assert!(format!("{:x}", 1isize) == "1");
assert!(format!("{:x}", 1i8) == "1");
assert!(format!("{:x}", 1i16) == "1");
assert!(format!("{:x}", 1i32) == "1");
assert!(format!("{:x}", 1i64) == "1");
assert!(format!("{:X}", 1isize) == "1");
assert!(format!("{:X}", 1i8) == "1");
assert!(format!("{:X}", 1i16) == "1");
assert!(format!("{:X}", 1i32) == "1");
assert!(format!("{:X}", 1i64) == "1");
assert!(format!("{:o}", 1isize) == "1");
assert!(format!("{:o}", 1i8) == "1");
assert!(format!("{:o}", 1i16) == "1");
assert!(format!("{:o}", 1i32) == "1");
assert!(format!("{:o}", 1i64) == "1");
assert!(format!("{}", 1usize) == "1");
assert!(format!("{}", 1u8) == "1");
assert!(format!("{}", 1u16) == "1");
assert!(format!("{}", 1u32) == "1");
assert!(format!("{}", 1u64) == "1");
assert!(format!("{:?}", 1usize) == "1");
assert!(format!("{:?}", 1u8) == "1");
assert!(format!("{:?}", 1u16) == "1");
assert!(format!("{:?}", 1u32) == "1");
assert!(format!("{:?}", 1u64) == "1");
assert!(format!("{:b}", 1usize) == "1");
assert!(format!("{:b}", 1u8) == "1");
assert!(format!("{:b}", 1u16) == "1");
assert!(format!("{:b}", 1u32) == "1");
assert!(format!("{:b}", 1u64) == "1");
assert!(format!("{:x}", 1usize) == "1");
assert!(format!("{:x}", 1u8) == "1");
assert!(format!("{:x}", 1u16) == "1");
assert!(format!("{:x}", 1u32) == "1");
assert!(format!("{:x}", 1u64) == "1");
assert!(format!("{:X}", 1usize) == "1");
assert!(format!("{:X}", 1u8) == "1");
assert!(format!("{:X}", 1u16) == "1");
assert!(format!("{:X}", 1u32) == "1");
assert!(format!("{:X}", 1u64) == "1");
assert!(format!("{:o}", 1usize) == "1");
assert!(format!("{:o}", 1u8) == "1");
assert!(format!("{:o}", 1u16) == "1");
assert!(format!("{:o}", 1u32) == "1");
assert!(format!("{:o}", 1u64) == "1");
// Test a larger number
assert!(format!("{:b}", 55) == "110111");
assert!(format!("{:o}", 55) == "67");
assert!(format!("{}", 55) == "55");
assert!(format!("{:x}", 55) == "37");
assert!(format!("{:X}", 55) == "37");
}
#[test]
fn test_format_int_zero() {
assert!(format!("{}", 0) == "0");
assert!(format!("{:?}", 0) == "0");
assert!(format!("{:b}", 0) == "0");
assert!(format!("{:o}", 0) == "0");
assert!(format!("{:x}", 0) == "0");
assert!(format!("{:X}", 0) == "0");
assert!(format!("{}", 0u32) == "0");
assert!(format!("{:?}", 0u32) == "0");
assert!(format!("{:b}", 0u32) == "0");
assert!(format!("{:o}", 0u32) == "0");
assert!(format!("{:x}", 0u32) == "0");
assert!(format!("{:X}", 0u32) == "0");
}
#[test]
fn test_format_int_flags() {
assert!(format!("{:3}", 1) == " 1");
assert!(format!("{:>3}", 1) == " 1");
assert!(format!("{:>+3}", 1) == " +1");
assert!(format!("{:<3}", 1) == "1 ");
assert!(format!("{:#}", 1) == "1");
assert!(format!("{:#x}", 10) == "0xa");
assert!(format!("{:#X}", 10) == "0xA");
assert!(format!("{:#5x}", 10) == " 0xa");
assert!(format!("{:#o}", 10) == "0o12");
assert!(format!("{:08x}", 10) == "0000000a");
assert!(format!("{:8x}", 10) == " a");
assert!(format!("{:<8x}", 10) == "a ");
assert!(format!("{:>8x}", 10) == " a");
assert!(format!("{:#08x}", 10) == "0x00000a");
assert!(format!("{:08}", -10) == "-0000010");
assert!(format!("{:x}", !0u8) == "ff");
assert!(format!("{:X}", !0u8) == "FF");
assert!(format!("{:b}", !0u8) == "11111111");
assert!(format!("{:o}", !0u8) == "377");
assert!(format!("{:#x}", !0u8) == "0xff");
assert!(format!("{:#X}", !0u8) == "0xFF");
assert!(format!("{:#b}", !0u8) == "0b11111111");
assert!(format!("{:#o}", !0u8) == "0o377");
}
#[test]
fn test_format_int_sign_padding() {
assert!(format!("{:+5}", 1) == " +1");
assert!(format!("{:+5}", -1) == " -1");
assert!(format!("{:05}", 1) == "00001");
assert!(format!("{:05}", -1) == "-0001");
assert!(format!("{:+05}", 1) == "+0001");
assert!(format!("{:+05}", -1) == "-0001");
}
#[test]
fn test_format_int_twos_complement() {
use core::{i8, i16, i32, i64};
assert!(format!("{}", i8::MIN) == "-128");
assert!(format!("{}", i16::MIN) == "-32768");
assert!(format!("{}", i32::MIN) == "-2147483648");
assert!(format!("{}", i64::MIN) == "-9223372036854775808");
}
#[test]
fn test_format_debug_hex() {
assert!(format!("{:02x?}", b"Foo\0") == "[46, 6f, 6f, 00]");
assert!(format!("{:02X?}", b"Foo\0") == "[46, 6F, 6F, 00]");
}
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