258 lines
7.5 KiB
Rust
258 lines
7.5 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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#[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!('\u{2007}'.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!(!'\u{0}'.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(10), Some(0));
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assert_eq!('1'.to_digit(2), Some(1));
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assert_eq!('2'.to_digit(3), Some(2));
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assert_eq!('9'.to_digit(10), Some(9));
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assert_eq!('a'.to_digit(16), Some(10));
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assert_eq!('A'.to_digit(16), Some(10));
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assert_eq!('b'.to_digit(16), Some(11));
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assert_eq!('B'.to_digit(16), Some(11));
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assert_eq!('z'.to_digit(36), Some(35));
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assert_eq!('Z'.to_digit(36), Some(35));
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assert_eq!(' '.to_digit(10), None);
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assert_eq!('$'.to_digit(36), None);
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}
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#[test]
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fn test_to_lowercase() {
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fn lower(c: char) -> Vec<char> {
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c.to_lowercase().collect()
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}
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assert_eq!(lower('A'), ['a']);
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assert_eq!(lower('Ö'), ['ö']);
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assert_eq!(lower('ß'), ['ß']);
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assert_eq!(lower('Ü'), ['ü']);
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assert_eq!(lower('💩'), ['💩']);
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assert_eq!(lower('Σ'), ['σ']);
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assert_eq!(lower('Τ'), ['τ']);
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assert_eq!(lower('Ι'), ['ι']);
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assert_eq!(lower('Γ'), ['γ']);
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assert_eq!(lower('Μ'), ['μ']);
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assert_eq!(lower('Α'), ['α']);
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assert_eq!(lower('Σ'), ['σ']);
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assert_eq!(lower('Dž'), ['dž']);
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assert_eq!(lower('fi'), ['fi']);
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assert_eq!(lower('İ'), ['i', '\u{307}']);
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}
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#[test]
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fn test_to_uppercase() {
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fn upper(c: char) -> Vec<char> {
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c.to_uppercase().collect()
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}
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assert_eq!(upper('a'), ['A']);
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assert_eq!(upper('ö'), ['Ö']);
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assert_eq!(upper('ß'), ['S', 'S']); // not ẞ: Latin capital letter sharp s
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assert_eq!(upper('ü'), ['Ü']);
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assert_eq!(upper('💩'), ['💩']);
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assert_eq!(upper('σ'), ['Σ']);
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assert_eq!(upper('τ'), ['Τ']);
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assert_eq!(upper('ι'), ['Ι']);
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assert_eq!(upper('γ'), ['Γ']);
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assert_eq!(upper('μ'), ['Μ']);
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assert_eq!(upper('α'), ['Α']);
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assert_eq!(upper('ς'), ['Σ']);
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assert_eq!(upper('Dž'), ['DŽ']);
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assert_eq!(upper('fi'), ['F', 'I']);
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assert_eq!(upper('ᾀ'), ['Ἀ', 'Ι']);
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}
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#[test]
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fn test_is_control() {
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assert!('\u{0}'.is_control());
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assert!('\u{3}'.is_control());
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assert!('\u{6}'.is_control());
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assert!('\u{9}'.is_control());
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assert!('\u{7f}'.is_control());
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assert!('\u{92}'.is_control());
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assert!(!'\u{20}'.is_control());
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assert!(!'\u{55}'.is_control());
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assert!(!'\u{68}'.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_numeric());
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assert!('7'.is_numeric());
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assert!(!'c'.is_numeric());
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assert!(!'i'.is_numeric());
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assert!(!'z'.is_numeric());
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assert!(!'Q'.is_numeric());
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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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c.escape_default().collect()
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}
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let s = string('\n');
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assert_eq!(s, "\\n");
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let s = string('\r');
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assert_eq!(s, "\\r");
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let s = string('\'');
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assert_eq!(s, "\\'");
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let s = string('"');
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assert_eq!(s, "\\\"");
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let s = string(' ');
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assert_eq!(s, " ");
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let s = string('a');
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assert_eq!(s, "a");
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let s = string('~');
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assert_eq!(s, "~");
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let s = string('\x00');
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assert_eq!(s, "\\u{0}");
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let s = string('\x1f');
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assert_eq!(s, "\\u{1f}");
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let s = string('\x7f');
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assert_eq!(s, "\\u{7f}");
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let s = string('\u{ff}');
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assert_eq!(s, "\\u{ff}");
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let s = string('\u{11b}');
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assert_eq!(s, "\\u{11b}");
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let s = string('\u{1d4b6}');
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assert_eq!(s, "\\u{1d4b6}");
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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 { c.escape_unicode().collect() }
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let s = string('\x00');
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assert_eq!(s, "\\u{0}");
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let s = string('\n');
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assert_eq!(s, "\\u{a}");
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let s = string(' ');
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assert_eq!(s, "\\u{20}");
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let s = string('a');
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assert_eq!(s, "\\u{61}");
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let s = string('\u{11b}');
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assert_eq!(s, "\\u{11b}");
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let s = string('\u{1d4b6}');
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assert_eq!(s, "\\u{1d4b6}");
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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 = [0; 4];
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let n = input.encode_utf8(&mut buf).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('\u{e9}', &[0xc3, 0xa9]);
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check('\u{a66e}', &[0xea, 0x99, 0xae]);
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check('\u{1f4a9}', &[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 = [0; 2];
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let n = input.encode_utf16(&mut buf).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('\u{e9}', &[0x00e9]);
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check('\u{a66e}', &[0xa66e]);
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check('\u{1f4a9}', &[0xd83d, 0xdca9]);
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}
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#[test]
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fn test_len_utf16() {
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assert!('x'.len_utf16() == 1);
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assert!('\u{e9}'.len_utf16() == 1);
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assert!('\u{a66e}'.len_utf16() == 1);
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assert!('\u{1f4a9}'.len_utf16() == 2);
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}
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#[test]
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fn test_decode_utf16() {
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fn check(s: &[u16], expected: &[Result<char, u16>]) {
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assert_eq!(::std::char::decode_utf16(s.iter().cloned()).collect::<Vec<_>>(), expected);
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}
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check(&[0xD800, 0x41, 0x42], &[Err(0xD800), Ok('A'), Ok('B')]);
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check(&[0xD800, 0], &[Err(0xD800), Ok('\0')]);
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}
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#[test]
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fn ed_iterator_specializations() {
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// Check counting
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assert_eq!('\n'.escape_default().count(), 2);
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assert_eq!('c'.escape_default().count(), 1);
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assert_eq!(' '.escape_default().count(), 1);
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assert_eq!('\\'.escape_default().count(), 2);
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assert_eq!('\''.escape_default().count(), 2);
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// Check nth
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// Check that OoB is handled correctly
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assert_eq!('\n'.escape_default().nth(2), None);
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assert_eq!('c'.escape_default().nth(1), None);
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assert_eq!(' '.escape_default().nth(1), None);
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assert_eq!('\\'.escape_default().nth(2), None);
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assert_eq!('\''.escape_default().nth(2), None);
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// Check the first char
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assert_eq!('\n'.escape_default().nth(0), Some('\\'));
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assert_eq!('c'.escape_default().nth(0), Some('c'));
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assert_eq!(' '.escape_default().nth(0), Some(' '));
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assert_eq!('\\'.escape_default().nth(0), Some('\\'));
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assert_eq!('\''.escape_default().nth(0), Some('\\'));
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// Check the second char
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assert_eq!('\n'.escape_default().nth(1), Some('n'));
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assert_eq!('\\'.escape_default().nth(1), Some('\\'));
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assert_eq!('\''.escape_default().nth(1), Some('\''));
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// Check the last char
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assert_eq!('\n'.escape_default().last(), Some('n'));
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assert_eq!('c'.escape_default().last(), Some('c'));
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assert_eq!(' '.escape_default().last(), Some(' '));
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assert_eq!('\\'.escape_default().last(), Some('\\'));
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assert_eq!('\''.escape_default().last(), Some('\''));
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}
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