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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. | |
4 | // | |
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. | |
1a4d82fc JJ |
10 | |
11 | #[test] | |
12 | fn test_format_int() { | |
13 | // Formatting integers should select the right implementation based off | |
14 | // the type of the argument. Also, hex/octal/binary should be defined | |
15 | // for integers, but they shouldn't emit the negative sign. | |
85aaf69f | 16 | assert!(format!("{}", 1isize) == "1"); |
1a4d82fc JJ |
17 | assert!(format!("{}", 1i8) == "1"); |
18 | assert!(format!("{}", 1i16) == "1"); | |
19 | assert!(format!("{}", 1i32) == "1"); | |
20 | assert!(format!("{}", 1i64) == "1"); | |
85aaf69f | 21 | assert!(format!("{}", -1isize) == "-1"); |
1a4d82fc JJ |
22 | assert!(format!("{}", -1i8) == "-1"); |
23 | assert!(format!("{}", -1i16) == "-1"); | |
24 | assert!(format!("{}", -1i32) == "-1"); | |
25 | assert!(format!("{}", -1i64) == "-1"); | |
85aaf69f SL |
26 | assert!(format!("{:?}", 1isize) == "1"); |
27 | assert!(format!("{:?}", 1i8) == "1"); | |
28 | assert!(format!("{:?}", 1i16) == "1"); | |
29 | assert!(format!("{:?}", 1i32) == "1"); | |
30 | assert!(format!("{:?}", 1i64) == "1"); | |
31 | assert!(format!("{:b}", 1isize) == "1"); | |
1a4d82fc JJ |
32 | assert!(format!("{:b}", 1i8) == "1"); |
33 | assert!(format!("{:b}", 1i16) == "1"); | |
34 | assert!(format!("{:b}", 1i32) == "1"); | |
35 | assert!(format!("{:b}", 1i64) == "1"); | |
85aaf69f | 36 | assert!(format!("{:x}", 1isize) == "1"); |
1a4d82fc JJ |
37 | assert!(format!("{:x}", 1i8) == "1"); |
38 | assert!(format!("{:x}", 1i16) == "1"); | |
39 | assert!(format!("{:x}", 1i32) == "1"); | |
40 | assert!(format!("{:x}", 1i64) == "1"); | |
85aaf69f | 41 | assert!(format!("{:X}", 1isize) == "1"); |
1a4d82fc JJ |
42 | assert!(format!("{:X}", 1i8) == "1"); |
43 | assert!(format!("{:X}", 1i16) == "1"); | |
44 | assert!(format!("{:X}", 1i32) == "1"); | |
45 | assert!(format!("{:X}", 1i64) == "1"); | |
85aaf69f | 46 | assert!(format!("{:o}", 1isize) == "1"); |
1a4d82fc JJ |
47 | assert!(format!("{:o}", 1i8) == "1"); |
48 | assert!(format!("{:o}", 1i16) == "1"); | |
49 | assert!(format!("{:o}", 1i32) == "1"); | |
50 | assert!(format!("{:o}", 1i64) == "1"); | |
51 | ||
85aaf69f | 52 | assert!(format!("{}", 1usize) == "1"); |
1a4d82fc JJ |
53 | assert!(format!("{}", 1u8) == "1"); |
54 | assert!(format!("{}", 1u16) == "1"); | |
55 | assert!(format!("{}", 1u32) == "1"); | |
56 | assert!(format!("{}", 1u64) == "1"); | |
85aaf69f SL |
57 | assert!(format!("{:?}", 1usize) == "1"); |
58 | assert!(format!("{:?}", 1u8) == "1"); | |
59 | assert!(format!("{:?}", 1u16) == "1"); | |
60 | assert!(format!("{:?}", 1u32) == "1"); | |
61 | assert!(format!("{:?}", 1u64) == "1"); | |
62 | assert!(format!("{:b}", 1usize) == "1"); | |
1a4d82fc JJ |
63 | assert!(format!("{:b}", 1u8) == "1"); |
64 | assert!(format!("{:b}", 1u16) == "1"); | |
65 | assert!(format!("{:b}", 1u32) == "1"); | |
66 | assert!(format!("{:b}", 1u64) == "1"); | |
85aaf69f | 67 | assert!(format!("{:x}", 1usize) == "1"); |
1a4d82fc JJ |
68 | assert!(format!("{:x}", 1u8) == "1"); |
69 | assert!(format!("{:x}", 1u16) == "1"); | |
70 | assert!(format!("{:x}", 1u32) == "1"); | |
71 | assert!(format!("{:x}", 1u64) == "1"); | |
85aaf69f | 72 | assert!(format!("{:X}", 1usize) == "1"); |
1a4d82fc JJ |
73 | assert!(format!("{:X}", 1u8) == "1"); |
74 | assert!(format!("{:X}", 1u16) == "1"); | |
75 | assert!(format!("{:X}", 1u32) == "1"); | |
76 | assert!(format!("{:X}", 1u64) == "1"); | |
85aaf69f | 77 | assert!(format!("{:o}", 1usize) == "1"); |
1a4d82fc JJ |
78 | assert!(format!("{:o}", 1u8) == "1"); |
79 | assert!(format!("{:o}", 1u16) == "1"); | |
80 | assert!(format!("{:o}", 1u32) == "1"); | |
81 | assert!(format!("{:o}", 1u64) == "1"); | |
82 | ||
83 | // Test a larger number | |
85aaf69f SL |
84 | assert!(format!("{:b}", 55) == "110111"); |
85 | assert!(format!("{:o}", 55) == "67"); | |
86 | assert!(format!("{}", 55) == "55"); | |
87 | assert!(format!("{:x}", 55) == "37"); | |
88 | assert!(format!("{:X}", 55) == "37"); | |
1a4d82fc JJ |
89 | } |
90 | ||
91 | #[test] | |
92 | fn test_format_int_zero() { | |
85aaf69f SL |
93 | assert!(format!("{}", 0) == "0"); |
94 | assert!(format!("{:?}", 0) == "0"); | |
95 | assert!(format!("{:b}", 0) == "0"); | |
96 | assert!(format!("{:o}", 0) == "0"); | |
97 | assert!(format!("{:x}", 0) == "0"); | |
98 | assert!(format!("{:X}", 0) == "0"); | |
99 | ||
100 | assert!(format!("{}", 0u32) == "0"); | |
101 | assert!(format!("{:?}", 0u32) == "0"); | |
102 | assert!(format!("{:b}", 0u32) == "0"); | |
103 | assert!(format!("{:o}", 0u32) == "0"); | |
104 | assert!(format!("{:x}", 0u32) == "0"); | |
105 | assert!(format!("{:X}", 0u32) == "0"); | |
1a4d82fc JJ |
106 | } |
107 | ||
108 | #[test] | |
109 | fn test_format_int_flags() { | |
85aaf69f SL |
110 | assert!(format!("{:3}", 1) == " 1"); |
111 | assert!(format!("{:>3}", 1) == " 1"); | |
112 | assert!(format!("{:>+3}", 1) == " +1"); | |
113 | assert!(format!("{:<3}", 1) == "1 "); | |
114 | assert!(format!("{:#}", 1) == "1"); | |
115 | assert!(format!("{:#x}", 10) == "0xa"); | |
116 | assert!(format!("{:#X}", 10) == "0xA"); | |
117 | assert!(format!("{:#5x}", 10) == " 0xa"); | |
118 | assert!(format!("{:#o}", 10) == "0o12"); | |
119 | assert!(format!("{:08x}", 10) == "0000000a"); | |
120 | assert!(format!("{:8x}", 10) == " a"); | |
121 | assert!(format!("{:<8x}", 10) == "a "); | |
122 | assert!(format!("{:>8x}", 10) == " a"); | |
123 | assert!(format!("{:#08x}", 10) == "0x00000a"); | |
124 | assert!(format!("{:08}", -10) == "-0000010"); | |
c34b1796 AL |
125 | assert!(format!("{:x}", !0u8) == "ff"); |
126 | assert!(format!("{:X}", !0u8) == "FF"); | |
127 | assert!(format!("{:b}", !0u8) == "11111111"); | |
128 | assert!(format!("{:o}", !0u8) == "377"); | |
129 | assert!(format!("{:#x}", !0u8) == "0xff"); | |
130 | assert!(format!("{:#X}", !0u8) == "0xFF"); | |
131 | assert!(format!("{:#b}", !0u8) == "0b11111111"); | |
132 | assert!(format!("{:#o}", !0u8) == "0o377"); | |
1a4d82fc JJ |
133 | } |
134 | ||
135 | #[test] | |
136 | fn test_format_int_sign_padding() { | |
85aaf69f SL |
137 | assert!(format!("{:+5}", 1) == " +1"); |
138 | assert!(format!("{:+5}", -1) == " -1"); | |
139 | assert!(format!("{:05}", 1) == "00001"); | |
140 | assert!(format!("{:05}", -1) == "-0001"); | |
141 | assert!(format!("{:+05}", 1) == "+0001"); | |
142 | assert!(format!("{:+05}", -1) == "-0001"); | |
1a4d82fc JJ |
143 | } |
144 | ||
145 | #[test] | |
146 | fn test_format_int_twos_complement() { | |
147 | use core::{i8, i16, i32, i64}; | |
148 | assert!(format!("{}", i8::MIN) == "-128"); | |
149 | assert!(format!("{}", i16::MIN) == "-32768"); | |
150 | assert!(format!("{}", i32::MIN) == "-2147483648"); | |
151 | assert!(format!("{}", i64::MIN) == "-9223372036854775808"); | |
152 | } |