1 // Copyright 2014 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
10 #![allow(unsigned_negation)]
15 fn test_format_int() {
16 // Formatting integers should select the right implementation based off
17 // the type of the argument. Also, hex/octal/binary should be defined
18 // for integers, but they shouldn't emit the negative sign.
19 assert!(format!("{}", 1i).as_slice() == "1");
20 assert!(format!("{}", 1i8).as_slice() == "1");
21 assert!(format!("{}", 1i16).as_slice() == "1");
22 assert!(format!("{}", 1i32).as_slice() == "1");
23 assert!(format!("{}", 1i64).as_slice() == "1");
24 assert!(format!("{:d}", -1i).as_slice() == "-1");
25 assert!(format!("{:d}", -1i8).as_slice() == "-1");
26 assert!(format!("{:d}", -1i16).as_slice() == "-1");
27 assert!(format!("{:d}", -1i32).as_slice() == "-1");
28 assert!(format!("{:d}", -1i64).as_slice() == "-1");
29 assert!(format!("{:t}", 1i).as_slice() == "1");
30 assert!(format!("{:t}", 1i8).as_slice() == "1");
31 assert!(format!("{:t}", 1i16).as_slice() == "1");
32 assert!(format!("{:t}", 1i32).as_slice() == "1");
33 assert!(format!("{:t}", 1i64).as_slice() == "1");
34 assert!(format!("{:x}", 1i).as_slice() == "1");
35 assert!(format!("{:x}", 1i8).as_slice() == "1");
36 assert!(format!("{:x}", 1i16).as_slice() == "1");
37 assert!(format!("{:x}", 1i32).as_slice() == "1");
38 assert!(format!("{:x}", 1i64).as_slice() == "1");
39 assert!(format!("{:X}", 1i).as_slice() == "1");
40 assert!(format!("{:X}", 1i8).as_slice() == "1");
41 assert!(format!("{:X}", 1i16).as_slice() == "1");
42 assert!(format!("{:X}", 1i32).as_slice() == "1");
43 assert!(format!("{:X}", 1i64).as_slice() == "1");
44 assert!(format!("{:o}", 1i).as_slice() == "1");
45 assert!(format!("{:o}", 1i8).as_slice() == "1");
46 assert!(format!("{:o}", 1i16).as_slice() == "1");
47 assert!(format!("{:o}", 1i32).as_slice() == "1");
48 assert!(format!("{:o}", 1i64).as_slice() == "1");
50 assert!(format!("{}", 1u).as_slice() == "1");
51 assert!(format!("{}", 1u8).as_slice() == "1");
52 assert!(format!("{}", 1u16).as_slice() == "1");
53 assert!(format!("{}", 1u32).as_slice() == "1");
54 assert!(format!("{}", 1u64).as_slice() == "1");
55 assert!(format!("{:u}", 1u).as_slice() == "1");
56 assert!(format!("{:u}", 1u8).as_slice() == "1");
57 assert!(format!("{:u}", 1u16).as_slice() == "1");
58 assert!(format!("{:u}", 1u32).as_slice() == "1");
59 assert!(format!("{:u}", 1u64).as_slice() == "1");
60 assert!(format!("{:t}", 1u).as_slice() == "1");
61 assert!(format!("{:t}", 1u8).as_slice() == "1");
62 assert!(format!("{:t}", 1u16).as_slice() == "1");
63 assert!(format!("{:t}", 1u32).as_slice() == "1");
64 assert!(format!("{:t}", 1u64).as_slice() == "1");
65 assert!(format!("{:x}", 1u).as_slice() == "1");
66 assert!(format!("{:x}", 1u8).as_slice() == "1");
67 assert!(format!("{:x}", 1u16).as_slice() == "1");
68 assert!(format!("{:x}", 1u32).as_slice() == "1");
69 assert!(format!("{:x}", 1u64).as_slice() == "1");
70 assert!(format!("{:X}", 1u).as_slice() == "1");
71 assert!(format!("{:X}", 1u8).as_slice() == "1");
72 assert!(format!("{:X}", 1u16).as_slice() == "1");
73 assert!(format!("{:X}", 1u32).as_slice() == "1");
74 assert!(format!("{:X}", 1u64).as_slice() == "1");
75 assert!(format!("{:o}", 1u).as_slice() == "1");
76 assert!(format!("{:o}", 1u8).as_slice() == "1");
77 assert!(format!("{:o}", 1u16).as_slice() == "1");
78 assert!(format!("{:o}", 1u32).as_slice() == "1");
79 assert!(format!("{:o}", 1u64).as_slice() == "1");
81 // Test a larger number
82 assert!(format!("{:t}", 55i).as_slice() == "110111");
83 assert!(format!("{:o}", 55i).as_slice() == "67");
84 assert!(format!("{:d}", 55i).as_slice() == "55");
85 assert!(format!("{:x}", 55i).as_slice() == "37");
86 assert!(format!("{:X}", 55i).as_slice() == "37");
90 fn test_format_int_zero() {
91 assert!(format!("{}", 0i).as_slice() == "0");
92 assert!(format!("{:d}", 0i).as_slice() == "0");
93 assert!(format!("{:t}", 0i).as_slice() == "0");
94 assert!(format!("{:o}", 0i).as_slice() == "0");
95 assert!(format!("{:x}", 0i).as_slice() == "0");
96 assert!(format!("{:X}", 0i).as_slice() == "0");
98 assert!(format!("{}", 0u).as_slice() == "0");
99 assert!(format!("{:u}", 0u).as_slice() == "0");
100 assert!(format!("{:t}", 0u).as_slice() == "0");
101 assert!(format!("{:o}", 0u).as_slice() == "0");
102 assert!(format!("{:x}", 0u).as_slice() == "0");
103 assert!(format!("{:X}", 0u).as_slice() == "0");
107 fn test_format_int_flags() {
108 assert!(format!("{:3d}", 1i).as_slice() == " 1");
109 assert!(format!("{:>3d}", 1i).as_slice() == " 1");
110 assert!(format!("{:>+3d}", 1i).as_slice() == " +1");
111 assert!(format!("{:<3d}", 1i).as_slice() == "1 ");
112 assert!(format!("{:#d}", 1i).as_slice() == "1");
113 assert!(format!("{:#x}", 10i).as_slice() == "0xa");
114 assert!(format!("{:#X}", 10i).as_slice() == "0xA");
115 assert!(format!("{:#5x}", 10i).as_slice() == " 0xa");
116 assert!(format!("{:#o}", 10i).as_slice() == "0o12");
117 assert!(format!("{:08x}", 10i).as_slice() == "0000000a");
118 assert!(format!("{:8x}", 10i).as_slice() == " a");
119 assert!(format!("{:<8x}", 10i).as_slice() == "a ");
120 assert!(format!("{:>8x}", 10i).as_slice() == " a");
121 assert!(format!("{:#08x}", 10i).as_slice() == "0x00000a");
122 assert!(format!("{:08d}", -10i).as_slice() == "-0000010");
123 assert!(format!("{:x}", -1u8).as_slice() == "ff");
124 assert!(format!("{:X}", -1u8).as_slice() == "FF");
125 assert!(format!("{:t}", -1u8).as_slice() == "11111111");
126 assert!(format!("{:o}", -1u8).as_slice() == "377");
127 assert!(format!("{:#x}", -1u8).as_slice() == "0xff");
128 assert!(format!("{:#X}", -1u8).as_slice() == "0xFF");
129 assert!(format!("{:#t}", -1u8).as_slice() == "0b11111111");
130 assert!(format!("{:#o}", -1u8).as_slice() == "0o377");
134 fn test_format_int_sign_padding() {
135 assert!(format!("{:+5d}", 1i).as_slice() == " +1");
136 assert!(format!("{:+5d}", -1i).as_slice() == " -1");
137 assert!(format!("{:05d}", 1i).as_slice() == "00001");
138 assert!(format!("{:05d}", -1i).as_slice() == "-0001");
139 assert!(format!("{:+05d}", 1i).as_slice() == "+0001");
140 assert!(format!("{:+05d}", -1i).as_slice() == "-0001");
144 fn test_format_int_twos_complement() {
145 use core::{i8, i16, i32, i64};
146 assert!(format!("{}", i8::MIN).as_slice() == "-128");
147 assert!(format!("{}", i16::MIN).as_slice() == "-32768");
148 assert!(format!("{}", i32::MIN).as_slice() == "-2147483648");
149 assert!(format!("{}", i64::MIN).as_slice() == "-9223372036854775808");
153 fn test_format_radix() {
154 assert!(format!("{:04}", radix(3i, 2)).as_slice() == "0011");
155 assert!(format!("{}", radix(55i, 36)).as_slice() == "1j");
160 fn test_radix_base_too_large() {
161 let _ = radix(55i, 37);
166 use core::fmt::radix;
167 use std::rand::{weak_rng, Rng};
170 fn format_bin(b: &mut Bencher) {
171 let mut rng = weak_rng();
172 b.iter(|| { format!("{:t}", rng.gen::<uint>()); })
176 fn format_oct(b: &mut Bencher) {
177 let mut rng = weak_rng();
178 b.iter(|| { format!("{:o}", rng.gen::<uint>()); })
182 fn format_dec(b: &mut Bencher) {
183 let mut rng = weak_rng();
184 b.iter(|| { format!("{:u}", rng.gen::<uint>()); })
188 fn format_hex(b: &mut Bencher) {
189 let mut rng = weak_rng();
190 b.iter(|| { format!("{:x}", rng.gen::<uint>()); })
194 fn format_base_36(b: &mut Bencher) {
195 let mut rng = weak_rng();
196 b.iter(|| { format!("{}", radix(rng.gen::<uint>(), 36)); })
202 use core::fmt::radix;
203 use std::rand::{weak_rng, Rng};
206 fn format_bin(b: &mut Bencher) {
207 let mut rng = weak_rng();
208 b.iter(|| { format!("{:t}", rng.gen::<int>()); })
212 fn format_oct(b: &mut Bencher) {
213 let mut rng = weak_rng();
214 b.iter(|| { format!("{:o}", rng.gen::<int>()); })
218 fn format_dec(b: &mut Bencher) {
219 let mut rng = weak_rng();
220 b.iter(|| { format!("{:d}", rng.gen::<int>()); })
224 fn format_hex(b: &mut Bencher) {
225 let mut rng = weak_rng();
226 b.iter(|| { format!("{:x}", rng.gen::<int>()); })
230 fn format_base_36(b: &mut Bencher) {
231 let mut rng = weak_rng();
232 b.iter(|| { format!("{}", radix(rng.gen::<int>(), 36)); })