// Copyright 2014 The Rust Project Developers. See the COPYRIGHT // file at the top-level directory of this distribution and at // http://rust-lang.org/COPYRIGHT. // // Licensed under the Apache License, Version 2.0 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. // // ignore-lexer-test FIXME #15679 #[test] fn test_is_lowercase() { assert!('a'.is_lowercase()); assert!('ö'.is_lowercase()); assert!('ß'.is_lowercase()); assert!(!'Ü'.is_lowercase()); assert!(!'P'.is_lowercase()); } #[test] fn test_is_uppercase() { assert!(!'h'.is_uppercase()); assert!(!'ä'.is_uppercase()); assert!(!'ß'.is_uppercase()); assert!('Ö'.is_uppercase()); assert!('T'.is_uppercase()); } #[test] fn test_is_whitespace() { assert!(' '.is_whitespace()); assert!('\u{2007}'.is_whitespace()); assert!('\t'.is_whitespace()); assert!('\n'.is_whitespace()); assert!(!'a'.is_whitespace()); assert!(!'_'.is_whitespace()); assert!(!'\u{0}'.is_whitespace()); } #[test] fn test_to_digit() { assert_eq!('0'.to_digit(10), Some(0)); assert_eq!('1'.to_digit(2), Some(1)); assert_eq!('2'.to_digit(3), Some(2)); assert_eq!('9'.to_digit(10), Some(9)); assert_eq!('a'.to_digit(16), Some(10)); assert_eq!('A'.to_digit(16), Some(10)); assert_eq!('b'.to_digit(16), Some(11)); assert_eq!('B'.to_digit(16), Some(11)); assert_eq!('z'.to_digit(36), Some(35)); assert_eq!('Z'.to_digit(36), Some(35)); assert_eq!(' '.to_digit(10), None); assert_eq!('$'.to_digit(36), None); } #[test] fn test_to_lowercase() { assert_eq!('A'.to_lowercase(), 'a'); assert_eq!('Ö'.to_lowercase(), 'ö'); assert_eq!('ß'.to_lowercase(), 'ß'); assert_eq!('Ü'.to_lowercase(), 'ü'); assert_eq!('💩'.to_lowercase(), '💩'); assert_eq!('Σ'.to_lowercase(), 'σ'); assert_eq!('Τ'.to_lowercase(), 'τ'); assert_eq!('Ι'.to_lowercase(), 'ι'); assert_eq!('Γ'.to_lowercase(), 'γ'); assert_eq!('Μ'.to_lowercase(), 'μ'); assert_eq!('Α'.to_lowercase(), 'α'); assert_eq!('Σ'.to_lowercase(), 'σ'); } #[test] fn test_to_uppercase() { assert_eq!('a'.to_uppercase(), 'A'); assert_eq!('ö'.to_uppercase(), 'Ö'); assert_eq!('ß'.to_uppercase(), 'ß'); // not ẞ: Latin capital letter sharp s assert_eq!('ü'.to_uppercase(), 'Ü'); assert_eq!('💩'.to_uppercase(), '💩'); assert_eq!('σ'.to_uppercase(), 'Σ'); assert_eq!('τ'.to_uppercase(), 'Τ'); assert_eq!('ι'.to_uppercase(), 'Ι'); assert_eq!('γ'.to_uppercase(), 'Γ'); assert_eq!('μ'.to_uppercase(), 'Μ'); assert_eq!('α'.to_uppercase(), 'Α'); assert_eq!('ς'.to_uppercase(), 'Σ'); } #[test] fn test_is_control() { assert!('\u{0}'.is_control()); assert!('\u{3}'.is_control()); assert!('\u{6}'.is_control()); assert!('\u{9}'.is_control()); assert!('\u{7f}'.is_control()); assert!('\u{92}'.is_control()); assert!(!'\u{20}'.is_control()); assert!(!'\u{55}'.is_control()); assert!(!'\u{68}'.is_control()); } #[test] fn test_is_digit() { assert!('2'.is_numeric()); assert!('7'.is_numeric()); assert!(!'c'.is_numeric()); assert!(!'i'.is_numeric()); assert!(!'z'.is_numeric()); assert!(!'Q'.is_numeric()); } #[test] fn test_escape_default() { fn string(c: char) -> String { c.escape_default().collect() } let s = string('\n'); assert_eq!(s, "\\n"); let s = string('\r'); assert_eq!(s, "\\r"); let s = string('\''); assert_eq!(s, "\\'"); let s = string('"'); assert_eq!(s, "\\\""); let s = string(' '); assert_eq!(s, " "); let s = string('a'); assert_eq!(s, "a"); let s = string('~'); assert_eq!(s, "~"); let s = string('\x00'); assert_eq!(s, "\\u{0}"); let s = string('\x1f'); assert_eq!(s, "\\u{1f}"); let s = string('\x7f'); assert_eq!(s, "\\u{7f}"); let s = string('\u{ff}'); assert_eq!(s, "\\u{ff}"); let s = string('\u{11b}'); assert_eq!(s, "\\u{11b}"); let s = string('\u{1d4b6}'); assert_eq!(s, "\\u{1d4b6}"); } #[test] fn test_escape_unicode() { fn string(c: char) -> String { c.escape_unicode().collect() } let s = string('\x00'); assert_eq!(s, "\\u{0}"); let s = string('\n'); assert_eq!(s, "\\u{a}"); let s = string(' '); assert_eq!(s, "\\u{20}"); let s = string('a'); assert_eq!(s, "\\u{61}"); let s = string('\u{11b}'); assert_eq!(s, "\\u{11b}"); let s = string('\u{1d4b6}'); assert_eq!(s, "\\u{1d4b6}"); } #[test] fn test_encode_utf8() { fn check(input: char, expect: &[u8]) { let mut buf = [0; 4]; let n = input.encode_utf8(&mut buf).unwrap_or(0); assert_eq!(&buf[..n], expect); } check('x', &[0x78]); check('\u{e9}', &[0xc3, 0xa9]); check('\u{a66e}', &[0xea, 0x99, 0xae]); check('\u{1f4a9}', &[0xf0, 0x9f, 0x92, 0xa9]); } #[test] fn test_encode_utf16() { fn check(input: char, expect: &[u16]) { let mut buf = [0; 2]; let n = input.encode_utf16(&mut buf).unwrap_or(0); assert_eq!(&buf[..n], expect); } check('x', &[0x0078]); check('\u{e9}', &[0x00e9]); check('\u{a66e}', &[0xa66e]); check('\u{1f4a9}', &[0xd83d, 0xdca9]); } #[test] fn test_len_utf16() { assert!('x'.len_utf16() == 1); assert!('\u{e9}'.len_utf16() == 1); assert!('\u{a66e}'.len_utf16() == 1); assert!('\u{1f4a9}'.len_utf16() == 2); } #[test] fn test_width() { assert_eq!('\x00'.width(false),Some(0)); assert_eq!('\x00'.width(true),Some(0)); assert_eq!('\x0A'.width(false),None); assert_eq!('\x0A'.width(true),None); assert_eq!('w'.width(false),Some(1)); assert_eq!('w'.width(true),Some(1)); assert_eq!('ｈ'.width(false),Some(2)); assert_eq!('ｈ'.width(true),Some(2)); assert_eq!('\u{AD}'.width(false),Some(1)); assert_eq!('\u{AD}'.width(true),Some(1)); assert_eq!('\u{1160}'.width(false),Some(0)); assert_eq!('\u{1160}'.width(true),Some(0)); assert_eq!('\u{a1}'.width(false),Some(1)); assert_eq!('\u{a1}'.width(true),Some(2)); assert_eq!('\u{300}'.width(false),Some(0)); assert_eq!('\u{300}'.width(true),Some(0)); }