226 lines
6.5 KiB
Rust
226 lines
6.5 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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//
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// ignore-lexer-test FIXME #15679
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use core::char::{escape_unicode, escape_default};
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#[test]
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fn test_is_lowercase() {
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assert!('a'.is_lowercase());
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assert!('ö'.is_lowercase());
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assert!('ß'.is_lowercase());
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assert!(!'Ü'.is_lowercase());
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assert!(!'P'.is_lowercase());
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}
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#[test]
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fn test_is_uppercase() {
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assert!(!'h'.is_uppercase());
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assert!(!'ä'.is_uppercase());
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assert!(!'ß'.is_uppercase());
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assert!('Ö'.is_uppercase());
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assert!('T'.is_uppercase());
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}
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#[test]
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fn test_is_whitespace() {
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assert!(' '.is_whitespace());
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assert!('\u2007'.is_whitespace());
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assert!('\t'.is_whitespace());
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assert!('\n'.is_whitespace());
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assert!(!'a'.is_whitespace());
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assert!(!'_'.is_whitespace());
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assert!(!'\u0000'.is_whitespace());
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}
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#[test]
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fn test_to_digit() {
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assert_eq!('0'.to_digit(10u), Some(0u));
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assert_eq!('1'.to_digit(2u), Some(1u));
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assert_eq!('2'.to_digit(3u), Some(2u));
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assert_eq!('9'.to_digit(10u), Some(9u));
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assert_eq!('a'.to_digit(16u), Some(10u));
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assert_eq!('A'.to_digit(16u), Some(10u));
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assert_eq!('b'.to_digit(16u), Some(11u));
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assert_eq!('B'.to_digit(16u), Some(11u));
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assert_eq!('z'.to_digit(36u), Some(35u));
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assert_eq!('Z'.to_digit(36u), Some(35u));
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assert_eq!(' '.to_digit(10u), None);
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assert_eq!('$'.to_digit(36u), None);
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}
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#[test]
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fn test_to_lowercase() {
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assert_eq!('A'.to_lowercase(), 'a');
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assert_eq!('Ö'.to_lowercase(), 'ö');
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assert_eq!('ß'.to_lowercase(), 'ß');
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assert_eq!('Ü'.to_lowercase(), 'ü');
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assert_eq!('💩'.to_lowercase(), '💩');
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assert_eq!('Σ'.to_lowercase(), 'σ');
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assert_eq!('Τ'.to_lowercase(), 'τ');
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assert_eq!('Ι'.to_lowercase(), 'ι');
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assert_eq!('Γ'.to_lowercase(), 'γ');
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assert_eq!('Μ'.to_lowercase(), 'μ');
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assert_eq!('Α'.to_lowercase(), 'α');
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assert_eq!('Σ'.to_lowercase(), 'σ');
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}
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#[test]
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fn test_to_uppercase() {
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assert_eq!('a'.to_uppercase(), 'A');
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assert_eq!('ö'.to_uppercase(), 'Ö');
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assert_eq!('ß'.to_uppercase(), 'ß'); // not ẞ: Latin capital letter sharp s
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assert_eq!('ü'.to_uppercase(), 'Ü');
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assert_eq!('💩'.to_uppercase(), '💩');
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assert_eq!('σ'.to_uppercase(), 'Σ');
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assert_eq!('τ'.to_uppercase(), 'Τ');
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assert_eq!('ι'.to_uppercase(), 'Ι');
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assert_eq!('γ'.to_uppercase(), 'Γ');
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assert_eq!('μ'.to_uppercase(), 'Μ');
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assert_eq!('α'.to_uppercase(), 'Α');
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assert_eq!('ς'.to_uppercase(), 'Σ');
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}
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#[test]
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fn test_is_control() {
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assert!('\u0000'.is_control());
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assert!('\u0003'.is_control());
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assert!('\u0006'.is_control());
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assert!('\u0009'.is_control());
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assert!('\u007f'.is_control());
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assert!('\u0092'.is_control());
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assert!(!'\u0020'.is_control());
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assert!(!'\u0055'.is_control());
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assert!(!'\u0068'.is_control());
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}
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#[test]
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fn test_is_digit() {
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assert!('2'.is_digit());
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assert!('7'.is_digit());
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assert!(!'c'.is_digit());
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assert!(!'i'.is_digit());
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assert!(!'z'.is_digit());
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assert!(!'Q'.is_digit());
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}
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#[test]
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fn test_escape_default() {
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fn string(c: char) -> String {
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let mut result = String::new();
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escape_default(c, |c| { result.push_char(c); });
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return result;
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}
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let s = string('\n');
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assert_eq!(s.as_slice(), "\\n");
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let s = string('\r');
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assert_eq!(s.as_slice(), "\\r");
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let s = string('\'');
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assert_eq!(s.as_slice(), "\\'");
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let s = string('"');
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assert_eq!(s.as_slice(), "\\\"");
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let s = string(' ');
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assert_eq!(s.as_slice(), " ");
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let s = string('a');
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assert_eq!(s.as_slice(), "a");
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let s = string('~');
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assert_eq!(s.as_slice(), "~");
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let s = string('\x00');
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assert_eq!(s.as_slice(), "\\x00");
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let s = string('\x1f');
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assert_eq!(s.as_slice(), "\\x1f");
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let s = string('\x7f');
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assert_eq!(s.as_slice(), "\\x7f");
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let s = string('\xff');
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assert_eq!(s.as_slice(), "\\xff");
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let s = string('\u011b');
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assert_eq!(s.as_slice(), "\\u011b");
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let s = string('\U0001d4b6');
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assert_eq!(s.as_slice(), "\\U0001d4b6");
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}
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#[test]
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fn test_escape_unicode() {
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fn string(c: char) -> String {
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let mut result = String::new();
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escape_unicode(c, |c| { result.push_char(c); });
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return result;
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}
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let s = string('\x00');
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assert_eq!(s.as_slice(), "\\x00");
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let s = string('\n');
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assert_eq!(s.as_slice(), "\\x0a");
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let s = string(' ');
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assert_eq!(s.as_slice(), "\\x20");
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let s = string('a');
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assert_eq!(s.as_slice(), "\\x61");
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let s = string('\u011b');
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assert_eq!(s.as_slice(), "\\u011b");
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let s = string('\U0001d4b6');
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assert_eq!(s.as_slice(), "\\U0001d4b6");
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}
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#[test]
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fn test_encode_utf8() {
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fn check(input: char, expect: &[u8]) {
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let mut buf = [0u8, ..4];
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let n = input.encode_utf8(buf.as_mut_slice()).unwrap_or(0);
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assert_eq!(buf[..n], expect);
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}
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check('x', [0x78]);
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check('\u00e9', [0xc3, 0xa9]);
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check('\ua66e', [0xea, 0x99, 0xae]);
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check('\U0001f4a9', [0xf0, 0x9f, 0x92, 0xa9]);
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}
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#[test]
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fn test_encode_utf16() {
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fn check(input: char, expect: &[u16]) {
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let mut buf = [0u16, ..2];
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let n = input.encode_utf16(buf.as_mut_slice()).unwrap_or(0);
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assert_eq!(buf[..n], expect);
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}
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check('x', [0x0078]);
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check('\u00e9', [0x00e9]);
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check('\ua66e', [0xa66e]);
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check('\U0001f4a9', [0xd83d, 0xdca9]);
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}
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#[test]
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fn test_width() {
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assert_eq!('\x00'.width(false),Some(0));
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assert_eq!('\x00'.width(true),Some(0));
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assert_eq!('\x0A'.width(false),None);
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assert_eq!('\x0A'.width(true),None);
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assert_eq!('w'.width(false),Some(1));
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assert_eq!('w'.width(true),Some(1));
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assert_eq!('ｈ'.width(false),Some(2));
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assert_eq!('ｈ'.width(true),Some(2));
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assert_eq!('\xAD'.width(false),Some(1));
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assert_eq!('\xAD'.width(true),Some(1));
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assert_eq!('\u1160'.width(false),Some(0));
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assert_eq!('\u1160'.width(true),Some(0));
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assert_eq!('\u00a1'.width(false),Some(1));
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assert_eq!('\u00a1'.width(true),Some(2));
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assert_eq!('\u0300'.width(false),Some(0));
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assert_eq!('\u0300'.width(true),Some(0));
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}
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