1ed646eaf7
Libcore's test infrastructure is complicated by the fact that many lang items are defined in the crate. The current approach (realcore/realstd imports) is hacky and hard to work with (tests inside of core::cmp haven't been run for months!). Moving tests to a separate crate does mean that they can only test the public API of libcore, but I don't feel that that is too much of an issue. The only tests that I had to get rid of were some checking the various numeric formatters, but those are also exercised through normal format! calls in other tests.
234 lines
8.8 KiB
Rust
234 lines
8.8 KiB
Rust
// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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#![allow(unsigned_negate)]
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use core::fmt::radix;
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#[test]
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fn test_format_int() {
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// Formatting integers should select the right implementation based off
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// the type of the argument. Also, hex/octal/binary should be defined
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// for integers, but they shouldn't emit the negative sign.
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assert!(format!("{}", 1i).as_slice() == "1");
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assert!(format!("{}", 1i8).as_slice() == "1");
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assert!(format!("{}", 1i16).as_slice() == "1");
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assert!(format!("{}", 1i32).as_slice() == "1");
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assert!(format!("{}", 1i64).as_slice() == "1");
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assert!(format!("{:d}", -1i).as_slice() == "-1");
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assert!(format!("{:d}", -1i8).as_slice() == "-1");
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assert!(format!("{:d}", -1i16).as_slice() == "-1");
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assert!(format!("{:d}", -1i32).as_slice() == "-1");
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assert!(format!("{:d}", -1i64).as_slice() == "-1");
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assert!(format!("{:t}", 1i).as_slice() == "1");
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assert!(format!("{:t}", 1i8).as_slice() == "1");
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assert!(format!("{:t}", 1i16).as_slice() == "1");
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assert!(format!("{:t}", 1i32).as_slice() == "1");
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assert!(format!("{:t}", 1i64).as_slice() == "1");
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assert!(format!("{:x}", 1i).as_slice() == "1");
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assert!(format!("{:x}", 1i8).as_slice() == "1");
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assert!(format!("{:x}", 1i16).as_slice() == "1");
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assert!(format!("{:x}", 1i32).as_slice() == "1");
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assert!(format!("{:x}", 1i64).as_slice() == "1");
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assert!(format!("{:X}", 1i).as_slice() == "1");
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assert!(format!("{:X}", 1i8).as_slice() == "1");
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assert!(format!("{:X}", 1i16).as_slice() == "1");
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assert!(format!("{:X}", 1i32).as_slice() == "1");
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assert!(format!("{:X}", 1i64).as_slice() == "1");
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assert!(format!("{:o}", 1i).as_slice() == "1");
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assert!(format!("{:o}", 1i8).as_slice() == "1");
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assert!(format!("{:o}", 1i16).as_slice() == "1");
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assert!(format!("{:o}", 1i32).as_slice() == "1");
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assert!(format!("{:o}", 1i64).as_slice() == "1");
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assert!(format!("{}", 1u).as_slice() == "1");
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assert!(format!("{}", 1u8).as_slice() == "1");
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assert!(format!("{}", 1u16).as_slice() == "1");
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assert!(format!("{}", 1u32).as_slice() == "1");
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assert!(format!("{}", 1u64).as_slice() == "1");
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assert!(format!("{:u}", 1u).as_slice() == "1");
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assert!(format!("{:u}", 1u8).as_slice() == "1");
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assert!(format!("{:u}", 1u16).as_slice() == "1");
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assert!(format!("{:u}", 1u32).as_slice() == "1");
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assert!(format!("{:u}", 1u64).as_slice() == "1");
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assert!(format!("{:t}", 1u).as_slice() == "1");
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assert!(format!("{:t}", 1u8).as_slice() == "1");
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assert!(format!("{:t}", 1u16).as_slice() == "1");
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assert!(format!("{:t}", 1u32).as_slice() == "1");
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assert!(format!("{:t}", 1u64).as_slice() == "1");
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assert!(format!("{:x}", 1u).as_slice() == "1");
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assert!(format!("{:x}", 1u8).as_slice() == "1");
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assert!(format!("{:x}", 1u16).as_slice() == "1");
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assert!(format!("{:x}", 1u32).as_slice() == "1");
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assert!(format!("{:x}", 1u64).as_slice() == "1");
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assert!(format!("{:X}", 1u).as_slice() == "1");
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assert!(format!("{:X}", 1u8).as_slice() == "1");
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assert!(format!("{:X}", 1u16).as_slice() == "1");
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assert!(format!("{:X}", 1u32).as_slice() == "1");
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assert!(format!("{:X}", 1u64).as_slice() == "1");
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assert!(format!("{:o}", 1u).as_slice() == "1");
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assert!(format!("{:o}", 1u8).as_slice() == "1");
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assert!(format!("{:o}", 1u16).as_slice() == "1");
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assert!(format!("{:o}", 1u32).as_slice() == "1");
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assert!(format!("{:o}", 1u64).as_slice() == "1");
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// Test a larger number
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assert!(format!("{:t}", 55i).as_slice() == "110111");
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assert!(format!("{:o}", 55i).as_slice() == "67");
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assert!(format!("{:d}", 55i).as_slice() == "55");
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assert!(format!("{:x}", 55i).as_slice() == "37");
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assert!(format!("{:X}", 55i).as_slice() == "37");
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}
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#[test]
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fn test_format_int_zero() {
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assert!(format!("{}", 0i).as_slice() == "0");
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assert!(format!("{:d}", 0i).as_slice() == "0");
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assert!(format!("{:t}", 0i).as_slice() == "0");
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assert!(format!("{:o}", 0i).as_slice() == "0");
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assert!(format!("{:x}", 0i).as_slice() == "0");
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assert!(format!("{:X}", 0i).as_slice() == "0");
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assert!(format!("{}", 0u).as_slice() == "0");
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assert!(format!("{:u}", 0u).as_slice() == "0");
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assert!(format!("{:t}", 0u).as_slice() == "0");
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assert!(format!("{:o}", 0u).as_slice() == "0");
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assert!(format!("{:x}", 0u).as_slice() == "0");
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assert!(format!("{:X}", 0u).as_slice() == "0");
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}
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#[test]
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fn test_format_int_flags() {
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assert!(format!("{:3d}", 1i).as_slice() == " 1");
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assert!(format!("{:>3d}", 1i).as_slice() == " 1");
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assert!(format!("{:>+3d}", 1i).as_slice() == " +1");
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assert!(format!("{:<3d}", 1i).as_slice() == "1 ");
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assert!(format!("{:#d}", 1i).as_slice() == "1");
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assert!(format!("{:#x}", 10i).as_slice() == "0xa");
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assert!(format!("{:#X}", 10i).as_slice() == "0xA");
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assert!(format!("{:#5x}", 10i).as_slice() == " 0xa");
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assert!(format!("{:#o}", 10i).as_slice() == "0o12");
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assert!(format!("{:08x}", 10i).as_slice() == "0000000a");
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assert!(format!("{:8x}", 10i).as_slice() == " a");
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assert!(format!("{:<8x}", 10i).as_slice() == "a ");
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assert!(format!("{:>8x}", 10i).as_slice() == " a");
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assert!(format!("{:#08x}", 10i).as_slice() == "0x00000a");
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assert!(format!("{:08d}", -10i).as_slice() == "-0000010");
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assert!(format!("{:x}", -1u8).as_slice() == "ff");
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assert!(format!("{:X}", -1u8).as_slice() == "FF");
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assert!(format!("{:t}", -1u8).as_slice() == "11111111");
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assert!(format!("{:o}", -1u8).as_slice() == "377");
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assert!(format!("{:#x}", -1u8).as_slice() == "0xff");
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assert!(format!("{:#X}", -1u8).as_slice() == "0xFF");
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assert!(format!("{:#t}", -1u8).as_slice() == "0b11111111");
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assert!(format!("{:#o}", -1u8).as_slice() == "0o377");
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}
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#[test]
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fn test_format_int_sign_padding() {
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assert!(format!("{:+5d}", 1i).as_slice() == " +1");
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assert!(format!("{:+5d}", -1i).as_slice() == " -1");
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assert!(format!("{:05d}", 1i).as_slice() == "00001");
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assert!(format!("{:05d}", -1i).as_slice() == "-0001");
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assert!(format!("{:+05d}", 1i).as_slice() == "+0001");
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assert!(format!("{:+05d}", -1i).as_slice() == "-0001");
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}
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#[test]
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fn test_format_int_twos_complement() {
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use core::{i8, i16, i32, i64};
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assert!(format!("{}", i8::MIN).as_slice() == "-128");
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assert!(format!("{}", i16::MIN).as_slice() == "-32768");
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assert!(format!("{}", i32::MIN).as_slice() == "-2147483648");
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assert!(format!("{}", i64::MIN).as_slice() == "-9223372036854775808");
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}
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#[test]
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fn test_format_radix() {
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assert!(format!("{:04}", radix(3i, 2)).as_slice() == "0011");
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assert!(format!("{}", radix(55i, 36)).as_slice() == "1j");
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}
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#[test]
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#[should_fail]
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fn test_radix_base_too_large() {
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let _ = radix(55i, 37);
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}
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mod uint {
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use test::Bencher;
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use core::fmt::radix;
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use std::rand::{weak_rng, Rng};
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#[bench]
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fn format_bin(b: &mut Bencher) {
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let mut rng = weak_rng();
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b.iter(|| { format!("{:t}", rng.gen::<uint>()); })
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}
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#[bench]
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fn format_oct(b: &mut Bencher) {
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let mut rng = weak_rng();
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b.iter(|| { format!("{:o}", rng.gen::<uint>()); })
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}
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#[bench]
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fn format_dec(b: &mut Bencher) {
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let mut rng = weak_rng();
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b.iter(|| { format!("{:u}", rng.gen::<uint>()); })
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}
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#[bench]
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fn format_hex(b: &mut Bencher) {
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let mut rng = weak_rng();
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b.iter(|| { format!("{:x}", rng.gen::<uint>()); })
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}
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#[bench]
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fn format_base_36(b: &mut Bencher) {
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let mut rng = weak_rng();
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b.iter(|| { format!("{}", radix(rng.gen::<uint>(), 36)); })
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}
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}
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mod int {
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use test::Bencher;
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use core::fmt::radix;
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use std::rand::{weak_rng, Rng};
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#[bench]
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fn format_bin(b: &mut Bencher) {
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let mut rng = weak_rng();
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b.iter(|| { format!("{:t}", rng.gen::<int>()); })
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}
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#[bench]
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fn format_oct(b: &mut Bencher) {
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let mut rng = weak_rng();
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b.iter(|| { format!("{:o}", rng.gen::<int>()); })
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}
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#[bench]
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fn format_dec(b: &mut Bencher) {
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let mut rng = weak_rng();
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b.iter(|| { format!("{:d}", rng.gen::<int>()); })
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}
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#[bench]
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fn format_hex(b: &mut Bencher) {
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let mut rng = weak_rng();
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b.iter(|| { format!("{:x}", rng.gen::<int>()); })
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}
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#[bench]
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fn format_base_36(b: &mut Bencher) {
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let mut rng = weak_rng();
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b.iter(|| { format!("{}", radix(rng.gen::<int>(), 36)); })
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}
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}
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