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
14 fn test_is_lowercase() {
15 assert!('a'.is_lowercase());
16 assert!('ö'.is_lowercase());
17 assert!('ß'.is_lowercase());
18 assert!(!'Ü'.is_lowercase());
19 assert!(!'P'.is_lowercase());
23 fn test_is_uppercase() {
24 assert!(!'h'.is_uppercase());
25 assert!(!'ä'.is_uppercase());
26 assert!(!'ß'.is_uppercase());
27 assert!('Ö'.is_uppercase());
28 assert!('T'.is_uppercase());
32 fn test_is_whitespace() {
33 assert!(' '.is_whitespace());
34 assert!('\u{2007}'.is_whitespace());
35 assert!('\t'.is_whitespace());
36 assert!('\n'.is_whitespace());
37 assert!(!'a'.is_whitespace());
38 assert!(!'_'.is_whitespace());
39 assert!(!'\u{0}'.is_whitespace());
44 assert_eq!('0'.to_digit(10u), Some(0u));
45 assert_eq!('1'.to_digit(2u), Some(1u));
46 assert_eq!('2'.to_digit(3u), Some(2u));
47 assert_eq!('9'.to_digit(10u), Some(9u));
48 assert_eq!('a'.to_digit(16u), Some(10u));
49 assert_eq!('A'.to_digit(16u), Some(10u));
50 assert_eq!('b'.to_digit(16u), Some(11u));
51 assert_eq!('B'.to_digit(16u), Some(11u));
52 assert_eq!('z'.to_digit(36u), Some(35u));
53 assert_eq!('Z'.to_digit(36u), Some(35u));
54 assert_eq!(' '.to_digit(10u), None);
55 assert_eq!('$'.to_digit(36u), None);
59 fn test_to_lowercase() {
60 assert_eq!('A'.to_lowercase(), 'a');
61 assert_eq!('Ö'.to_lowercase(), 'ö');
62 assert_eq!('ß'.to_lowercase(), 'ß');
63 assert_eq!('Ü'.to_lowercase(), 'ü');
64 assert_eq!('💩'.to_lowercase(), '💩');
65 assert_eq!('Σ'.to_lowercase(), 'σ');
66 assert_eq!('Τ'.to_lowercase(), 'τ');
67 assert_eq!('Ι'.to_lowercase(), 'ι');
68 assert_eq!('Γ'.to_lowercase(), 'γ');
69 assert_eq!('Μ'.to_lowercase(), 'μ');
70 assert_eq!('Α'.to_lowercase(), 'α');
71 assert_eq!('Σ'.to_lowercase(), 'σ');
75 fn test_to_uppercase() {
76 assert_eq!('a'.to_uppercase(), 'A');
77 assert_eq!('ö'.to_uppercase(), 'Ö');
78 assert_eq!('ß'.to_uppercase(), 'ß'); // not ẞ: Latin capital letter sharp s
79 assert_eq!('ü'.to_uppercase(), 'Ü');
80 assert_eq!('💩'.to_uppercase(), '💩');
82 assert_eq!('σ'.to_uppercase(), 'Σ');
83 assert_eq!('τ'.to_uppercase(), 'Τ');
84 assert_eq!('ι'.to_uppercase(), 'Ι');
85 assert_eq!('γ'.to_uppercase(), 'Γ');
86 assert_eq!('μ'.to_uppercase(), 'Μ');
87 assert_eq!('α'.to_uppercase(), 'Α');
88 assert_eq!('ς'.to_uppercase(), 'Σ');
92 fn test_is_control() {
93 assert!('\u{0}'.is_control());
94 assert!('\u{3}'.is_control());
95 assert!('\u{6}'.is_control());
96 assert!('\u{9}'.is_control());
97 assert!('\u{7f}'.is_control());
98 assert!('\u{92}'.is_control());
99 assert!(!'\u{20}'.is_control());
100 assert!(!'\u{55}'.is_control());
101 assert!(!'\u{68}'.is_control());
106 assert!('2'.is_numeric());
107 assert!('7'.is_numeric());
108 assert!(!'c'.is_numeric());
109 assert!(!'i'.is_numeric());
110 assert!(!'z'.is_numeric());
111 assert!(!'Q'.is_numeric());
115 fn test_escape_default() {
116 fn string(c: char) -> String {
117 c.escape_default().collect()
119 let s = string('\n');
120 assert_eq!(s, "\\n");
121 let s = string('\r');
122 assert_eq!(s, "\\r");
123 let s = string('\'');
124 assert_eq!(s, "\\'");
126 assert_eq!(s, "\\\"");
133 let s = string('\x00');
134 assert_eq!(s, "\\u{0}");
135 let s = string('\x1f');
136 assert_eq!(s, "\\u{1f}");
137 let s = string('\x7f');
138 assert_eq!(s, "\\u{7f}");
139 let s = string('\u{ff}');
140 assert_eq!(s, "\\u{ff}");
141 let s = string('\u{11b}');
142 assert_eq!(s, "\\u{11b}");
143 let s = string('\u{1d4b6}');
144 assert_eq!(s, "\\u{1d4b6}");
148 fn test_escape_unicode() {
149 fn string(c: char) -> String { c.escape_unicode().collect() }
151 let s = string('\x00');
152 assert_eq!(s, "\\u{0}");
153 let s = string('\n');
154 assert_eq!(s, "\\u{a}");
156 assert_eq!(s, "\\u{20}");
158 assert_eq!(s, "\\u{61}");
159 let s = string('\u{11b}');
160 assert_eq!(s, "\\u{11b}");
161 let s = string('\u{1d4b6}');
162 assert_eq!(s, "\\u{1d4b6}");
166 fn test_encode_utf8() {
167 fn check(input: char, expect: &[u8]) {
168 let mut buf = [0u8; 4];
169 let n = input.encode_utf8(buf.as_mut_slice()).unwrap_or(0);
170 assert_eq!(buf[..n], expect);
174 check('\u{e9}', &[0xc3, 0xa9]);
175 check('\u{a66e}', &[0xea, 0x99, 0xae]);
176 check('\u{1f4a9}', &[0xf0, 0x9f, 0x92, 0xa9]);
180 fn test_encode_utf16() {
181 fn check(input: char, expect: &[u16]) {
182 let mut buf = [0u16; 2];
183 let n = input.encode_utf16(buf.as_mut_slice()).unwrap_or(0);
184 assert_eq!(buf[..n], expect);
187 check('x', &[0x0078]);
188 check('\u{e9}', &[0x00e9]);
189 check('\u{a66e}', &[0xa66e]);
190 check('\u{1f4a9}', &[0xd83d, 0xdca9]);
194 fn test_len_utf16() {
195 assert!('x'.len_utf16() == 1);
196 assert!('\u{e9}'.len_utf16() == 1);
197 assert!('\u{a66e}'.len_utf16() == 1);
198 assert!('\u{1f4a9}'.len_utf16() == 2);
203 assert_eq!('\x00'.width(false),Some(0));
204 assert_eq!('\x00'.width(true),Some(0));
206 assert_eq!('\x0A'.width(false),None);
207 assert_eq!('\x0A'.width(true),None);
209 assert_eq!('w'.width(false),Some(1));
210 assert_eq!('w'.width(true),Some(1));
212 assert_eq!('h'.width(false),Some(2));
213 assert_eq!('h'.width(true),Some(2));
215 assert_eq!('\u{AD}'.width(false),Some(1));
216 assert_eq!('\u{AD}'.width(true),Some(1));
218 assert_eq!('\u{1160}'.width(false),Some(0));
219 assert_eq!('\u{1160}'.width(true),Some(0));
221 assert_eq!('\u{a1}'.width(false),Some(1));
222 assert_eq!('\u{a1}'.width(true),Some(2));
224 assert_eq!('\u{300}'.width(false),Some(0));
225 assert_eq!('\u{300}'.width(true),Some(0));