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.
11 // ignore-lexer-test FIXME #15679
13 use core::char::{escape_unicode, escape_default};
16 fn test_is_lowercase() {
17 assert!('a'.is_lowercase());
18 assert!('ö'.is_lowercase());
19 assert!('ß'.is_lowercase());
20 assert!(!'Ü'.is_lowercase());
21 assert!(!'P'.is_lowercase());
25 fn test_is_uppercase() {
26 assert!(!'h'.is_uppercase());
27 assert!(!'ä'.is_uppercase());
28 assert!(!'ß'.is_uppercase());
29 assert!('Ö'.is_uppercase());
30 assert!('T'.is_uppercase());
34 fn test_is_whitespace() {
35 assert!(' '.is_whitespace());
36 assert!('\u2007'.is_whitespace());
37 assert!('\t'.is_whitespace());
38 assert!('\n'.is_whitespace());
39 assert!(!'a'.is_whitespace());
40 assert!(!'_'.is_whitespace());
41 assert!(!'\u0000'.is_whitespace());
46 assert_eq!('0'.to_digit(10u), Some(0u));
47 assert_eq!('1'.to_digit(2u), Some(1u));
48 assert_eq!('2'.to_digit(3u), Some(2u));
49 assert_eq!('9'.to_digit(10u), Some(9u));
50 assert_eq!('a'.to_digit(16u), Some(10u));
51 assert_eq!('A'.to_digit(16u), Some(10u));
52 assert_eq!('b'.to_digit(16u), Some(11u));
53 assert_eq!('B'.to_digit(16u), Some(11u));
54 assert_eq!('z'.to_digit(36u), Some(35u));
55 assert_eq!('Z'.to_digit(36u), Some(35u));
56 assert_eq!(' '.to_digit(10u), None);
57 assert_eq!('$'.to_digit(36u), None);
61 fn test_to_lowercase() {
62 assert_eq!('A'.to_lowercase(), 'a');
63 assert_eq!('Ö'.to_lowercase(), 'ö');
64 assert_eq!('ß'.to_lowercase(), 'ß');
65 assert_eq!('Ü'.to_lowercase(), 'ü');
66 assert_eq!('💩'.to_lowercase(), '💩');
67 assert_eq!('Σ'.to_lowercase(), 'σ');
68 assert_eq!('Τ'.to_lowercase(), 'τ');
69 assert_eq!('Ι'.to_lowercase(), 'ι');
70 assert_eq!('Γ'.to_lowercase(), 'γ');
71 assert_eq!('Μ'.to_lowercase(), 'μ');
72 assert_eq!('Α'.to_lowercase(), 'α');
73 assert_eq!('Σ'.to_lowercase(), 'σ');
77 fn test_to_uppercase() {
78 assert_eq!('a'.to_uppercase(), 'A');
79 assert_eq!('ö'.to_uppercase(), 'Ö');
80 assert_eq!('ß'.to_uppercase(), 'ß'); // not ẞ: Latin capital letter sharp s
81 assert_eq!('ü'.to_uppercase(), 'Ü');
82 assert_eq!('💩'.to_uppercase(), '💩');
84 assert_eq!('σ'.to_uppercase(), 'Σ');
85 assert_eq!('τ'.to_uppercase(), 'Τ');
86 assert_eq!('ι'.to_uppercase(), 'Ι');
87 assert_eq!('γ'.to_uppercase(), 'Γ');
88 assert_eq!('μ'.to_uppercase(), 'Μ');
89 assert_eq!('α'.to_uppercase(), 'Α');
90 assert_eq!('ς'.to_uppercase(), 'Σ');
94 fn test_is_control() {
95 assert!('\u0000'.is_control());
96 assert!('\u0003'.is_control());
97 assert!('\u0006'.is_control());
98 assert!('\u0009'.is_control());
99 assert!('\u007f'.is_control());
100 assert!('\u0092'.is_control());
101 assert!(!'\u0020'.is_control());
102 assert!(!'\u0055'.is_control());
103 assert!(!'\u0068'.is_control());
108 assert!('2'.is_numeric());
109 assert!('7'.is_numeric());
110 assert!(!'c'.is_numeric());
111 assert!(!'i'.is_numeric());
112 assert!(!'z'.is_numeric());
113 assert!(!'Q'.is_numeric());
117 fn test_escape_default() {
118 fn string(c: char) -> String {
119 let mut result = String::new();
120 escape_default(c, |c| { result.push(c); });
123 let s = string('\n');
124 assert_eq!(s, "\\n");
125 let s = string('\r');
126 assert_eq!(s, "\\r");
127 let s = string('\'');
128 assert_eq!(s, "\\'");
130 assert_eq!(s, "\\\"");
137 let s = string('\x00');
138 assert_eq!(s, "\\u{0}");
139 let s = string('\x1f');
140 assert_eq!(s, "\\u{1f}");
141 let s = string('\x7f');
142 assert_eq!(s, "\\u{7f}");
143 let s = string('\u{ff}');
144 assert_eq!(s, "\\u{ff}");
145 let s = string('\u{11b}');
146 assert_eq!(s, "\\u{11b}");
147 let s = string('\u{1d4b6}');
148 assert_eq!(s, "\\u{1d4b6}");
152 fn test_escape_unicode() {
153 fn string(c: char) -> String { c.escape_unicode().collect() }
155 let s = string('\x00');
156 assert_eq!(s, "\\u{0}");
157 let s = string('\n');
158 assert_eq!(s, "\\u{a}");
160 assert_eq!(s, "\\u{20}");
162 assert_eq!(s, "\\u{61}");
163 let s = string('\u{11b}');
164 assert_eq!(s, "\\u{11b}");
165 let s = string('\u{1d4b6}');
166 assert_eq!(s, "\\u{1d4b6}");
170 fn test_encode_utf8() {
171 fn check(input: char, expect: &[u8]) {
172 let mut buf = [0u8; 4];
173 let n = input.encode_utf8(buf.as_mut_slice()).unwrap_or(0);
174 assert_eq!(buf[..n], expect);
178 check('\u00e9', &[0xc3, 0xa9]);
179 check('\ua66e', &[0xea, 0x99, 0xae]);
180 check('\U0001f4a9', &[0xf0, 0x9f, 0x92, 0xa9]);
184 fn test_encode_utf16() {
185 fn check(input: char, expect: &[u16]) {
186 let mut buf = [0u16; 2];
187 let n = input.encode_utf16(buf.as_mut_slice()).unwrap_or(0);
188 assert_eq!(buf[..n], expect);
191 check('x', &[0x0078]);
192 check('\u00e9', &[0x00e9]);
193 check('\ua66e', &[0xa66e]);
194 check('\U0001f4a9', &[0xd83d, 0xdca9]);
198 fn test_len_utf16() {
199 assert!('x'.len_utf16() == 1);
200 assert!('\u00e9'.len_utf16() == 1);
201 assert!('\ua66e'.len_utf16() == 1);
202 assert!('\U0001f4a9'.len_utf16() == 2);
207 assert_eq!('\x00'.width(false),Some(0));
208 assert_eq!('\x00'.width(true),Some(0));
210 assert_eq!('\x0A'.width(false),None);
211 assert_eq!('\x0A'.width(true),None);
213 assert_eq!('w'.width(false),Some(1));
214 assert_eq!('w'.width(true),Some(1));
216 assert_eq!('h'.width(false),Some(2));
217 assert_eq!('h'.width(true),Some(2));
219 assert_eq!('\u00AD'.width(false),Some(1));
220 assert_eq!('\u00AD'.width(true),Some(1));
222 assert_eq!('\u1160'.width(false),Some(0));
223 assert_eq!('\u1160'.width(true),Some(0));
225 assert_eq!('\u00a1'.width(false),Some(1));
226 assert_eq!('\u00a1'.width(true),Some(2));
228 assert_eq!('\u0300'.width(false),Some(0));
229 assert_eq!('\u0300'.width(true),Some(0));