mirror of
https://github.com/rust-lang/rust.git
synced 2025-10-31 04:57:19 +00:00
482 lines
14 KiB
Rust
482 lines
14 KiB
Rust
use core::char::from_u32;
|
||
|
||
#[test]
|
||
fn test_is_ascii() {
|
||
assert!(b"".is_ascii());
|
||
assert!(b"banana\0\x7F".is_ascii());
|
||
assert!(b"banana\0\x7F".iter().all(|b| b.is_ascii()));
|
||
assert!(!b"Vi\xe1\xbb\x87t Nam".is_ascii());
|
||
assert!(!b"Vi\xe1\xbb\x87t Nam".iter().all(|b| b.is_ascii()));
|
||
assert!(!b"\xe1\xbb\x87".iter().any(|b| b.is_ascii()));
|
||
|
||
assert!("".is_ascii());
|
||
assert!("banana\0\u{7F}".is_ascii());
|
||
assert!("banana\0\u{7F}".chars().all(|c| c.is_ascii()));
|
||
assert!(!"ประเทศไทย中华Việt Nam".chars().all(|c| c.is_ascii()));
|
||
assert!(!"ประเทศไทย中华ệ ".chars().any(|c| c.is_ascii()));
|
||
}
|
||
|
||
#[test]
|
||
fn test_to_ascii_uppercase() {
|
||
assert_eq!("url()URL()uRl()ürl".to_ascii_uppercase(), "URL()URL()URL()üRL");
|
||
assert_eq!("hıKß".to_ascii_uppercase(), "HıKß");
|
||
|
||
for i in 0..501 {
|
||
let upper =
|
||
if 'a' as u32 <= i && i <= 'z' as u32 { i + 'A' as u32 - 'a' as u32 } else { i };
|
||
assert_eq!(
|
||
(from_u32(i).unwrap()).to_string().to_ascii_uppercase(),
|
||
(from_u32(upper).unwrap()).to_string()
|
||
);
|
||
}
|
||
}
|
||
|
||
#[test]
|
||
fn test_to_ascii_lowercase() {
|
||
assert_eq!("url()URL()uRl()Ürl".to_ascii_lowercase(), "url()url()url()Ürl");
|
||
// Dotted capital I, Kelvin sign, Sharp S.
|
||
assert_eq!("HİKß".to_ascii_lowercase(), "hİKß");
|
||
|
||
for i in 0..501 {
|
||
let lower =
|
||
if 'A' as u32 <= i && i <= 'Z' as u32 { i + 'a' as u32 - 'A' as u32 } else { i };
|
||
assert_eq!(
|
||
(from_u32(i).unwrap()).to_string().to_ascii_lowercase(),
|
||
(from_u32(lower).unwrap()).to_string()
|
||
);
|
||
}
|
||
}
|
||
|
||
#[test]
|
||
fn test_make_ascii_lower_case() {
|
||
macro_rules! test {
|
||
($from: expr, $to: expr) => {{
|
||
let mut x = $from;
|
||
x.make_ascii_lowercase();
|
||
assert_eq!(x, $to);
|
||
}};
|
||
}
|
||
test!(b'A', b'a');
|
||
test!(b'a', b'a');
|
||
test!(b'!', b'!');
|
||
test!('A', 'a');
|
||
test!('À', 'À');
|
||
test!('a', 'a');
|
||
test!('!', '!');
|
||
test!(b"H\xc3\x89".to_vec(), b"h\xc3\x89");
|
||
test!("HİKß".to_string(), "hİKß");
|
||
}
|
||
|
||
#[test]
|
||
fn test_make_ascii_upper_case() {
|
||
macro_rules! test {
|
||
($from: expr, $to: expr) => {{
|
||
let mut x = $from;
|
||
x.make_ascii_uppercase();
|
||
assert_eq!(x, $to);
|
||
}};
|
||
}
|
||
test!(b'a', b'A');
|
||
test!(b'A', b'A');
|
||
test!(b'!', b'!');
|
||
test!('a', 'A');
|
||
test!('à', 'à');
|
||
test!('A', 'A');
|
||
test!('!', '!');
|
||
test!(b"h\xc3\xa9".to_vec(), b"H\xc3\xa9");
|
||
test!("hıKß".to_string(), "HıKß");
|
||
|
||
let mut x = "Hello".to_string();
|
||
x[..3].make_ascii_uppercase(); // Test IndexMut on String.
|
||
assert_eq!(x, "HELlo")
|
||
}
|
||
|
||
#[test]
|
||
fn test_eq_ignore_ascii_case() {
|
||
assert!("url()URL()uRl()Ürl".eq_ignore_ascii_case("url()url()url()Ürl"));
|
||
assert!(!"Ürl".eq_ignore_ascii_case("ürl"));
|
||
// Dotted capital I, Kelvin sign, Sharp S.
|
||
assert!("HİKß".eq_ignore_ascii_case("hİKß"));
|
||
assert!(!"İ".eq_ignore_ascii_case("i"));
|
||
assert!(!"K".eq_ignore_ascii_case("k"));
|
||
assert!(!"ß".eq_ignore_ascii_case("s"));
|
||
|
||
for i in 0..501 {
|
||
let lower =
|
||
if 'A' as u32 <= i && i <= 'Z' as u32 { i + 'a' as u32 - 'A' as u32 } else { i };
|
||
assert!(
|
||
(from_u32(i).unwrap())
|
||
.to_string()
|
||
.eq_ignore_ascii_case(&from_u32(lower).unwrap().to_string())
|
||
);
|
||
}
|
||
}
|
||
|
||
#[test]
|
||
fn inference_works() {
|
||
let x = "a".to_string();
|
||
let _ = x.eq_ignore_ascii_case("A");
|
||
}
|
||
|
||
// Shorthands used by the is_ascii_* tests.
|
||
macro_rules! assert_all {
|
||
($what:ident, $($str:tt),+) => {{
|
||
$(
|
||
for b in $str.chars() {
|
||
if !b.$what() {
|
||
panic!("expected {}({}) but it isn't",
|
||
stringify!($what), b);
|
||
}
|
||
}
|
||
for b in $str.as_bytes().iter() {
|
||
if !b.$what() {
|
||
panic!("expected {}(0x{:02x})) but it isn't",
|
||
stringify!($what), b);
|
||
}
|
||
}
|
||
)+
|
||
}};
|
||
($what:ident, $($str:tt),+,) => (assert_all!($what,$($str),+))
|
||
}
|
||
macro_rules! assert_none {
|
||
($what:ident, $($str:tt),+) => {{
|
||
$(
|
||
for b in $str.chars() {
|
||
if b.$what() {
|
||
panic!("expected not-{}({}) but it is",
|
||
stringify!($what), b);
|
||
}
|
||
}
|
||
for b in $str.as_bytes().iter() {
|
||
if b.$what() {
|
||
panic!("expected not-{}(0x{:02x})) but it is",
|
||
stringify!($what), b);
|
||
}
|
||
}
|
||
)+
|
||
}};
|
||
($what:ident, $($str:tt),+,) => (assert_none!($what,$($str),+))
|
||
}
|
||
|
||
#[test]
|
||
fn test_is_ascii_alphabetic() {
|
||
assert_all!(
|
||
is_ascii_alphabetic,
|
||
"",
|
||
"abcdefghijklmnopqrstuvwxyz",
|
||
"ABCDEFGHIJKLMNOQPRSTUVWXYZ",
|
||
);
|
||
assert_none!(
|
||
is_ascii_alphabetic,
|
||
"0123456789",
|
||
"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
|
||
" \t\n\x0c\r",
|
||
"\x00\x01\x02\x03\x04\x05\x06\x07",
|
||
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
|
||
"\x10\x11\x12\x13\x14\x15\x16\x17",
|
||
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
|
||
"\x7f",
|
||
);
|
||
}
|
||
|
||
#[test]
|
||
fn test_is_ascii_uppercase() {
|
||
assert_all!(is_ascii_uppercase, "", "ABCDEFGHIJKLMNOQPRSTUVWXYZ",);
|
||
assert_none!(
|
||
is_ascii_uppercase,
|
||
"abcdefghijklmnopqrstuvwxyz",
|
||
"0123456789",
|
||
"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
|
||
" \t\n\x0c\r",
|
||
"\x00\x01\x02\x03\x04\x05\x06\x07",
|
||
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
|
||
"\x10\x11\x12\x13\x14\x15\x16\x17",
|
||
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
|
||
"\x7f",
|
||
);
|
||
}
|
||
|
||
#[test]
|
||
fn test_is_ascii_lowercase() {
|
||
assert_all!(is_ascii_lowercase, "abcdefghijklmnopqrstuvwxyz",);
|
||
assert_none!(
|
||
is_ascii_lowercase,
|
||
"ABCDEFGHIJKLMNOQPRSTUVWXYZ",
|
||
"0123456789",
|
||
"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
|
||
" \t\n\x0c\r",
|
||
"\x00\x01\x02\x03\x04\x05\x06\x07",
|
||
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
|
||
"\x10\x11\x12\x13\x14\x15\x16\x17",
|
||
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
|
||
"\x7f",
|
||
);
|
||
}
|
||
|
||
#[test]
|
||
fn test_is_ascii_alphanumeric() {
|
||
assert_all!(
|
||
is_ascii_alphanumeric,
|
||
"",
|
||
"abcdefghijklmnopqrstuvwxyz",
|
||
"ABCDEFGHIJKLMNOQPRSTUVWXYZ",
|
||
"0123456789",
|
||
);
|
||
assert_none!(
|
||
is_ascii_alphanumeric,
|
||
"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
|
||
" \t\n\x0c\r",
|
||
"\x00\x01\x02\x03\x04\x05\x06\x07",
|
||
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
|
||
"\x10\x11\x12\x13\x14\x15\x16\x17",
|
||
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
|
||
"\x7f",
|
||
);
|
||
}
|
||
|
||
#[test]
|
||
fn test_is_ascii_digit() {
|
||
assert_all!(is_ascii_digit, "", "0123456789",);
|
||
assert_none!(
|
||
is_ascii_digit,
|
||
"abcdefghijklmnopqrstuvwxyz",
|
||
"ABCDEFGHIJKLMNOQPRSTUVWXYZ",
|
||
"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
|
||
" \t\n\x0c\r",
|
||
"\x00\x01\x02\x03\x04\x05\x06\x07",
|
||
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
|
||
"\x10\x11\x12\x13\x14\x15\x16\x17",
|
||
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
|
||
"\x7f",
|
||
);
|
||
}
|
||
|
||
#[test]
|
||
fn test_is_ascii_octdigit() {
|
||
assert_all!(is_ascii_octdigit, "", "01234567");
|
||
assert_none!(
|
||
is_ascii_octdigit,
|
||
"abcdefghijklmnopqrstuvwxyz",
|
||
"ABCDEFGHIJKLMNOQPRSTUVWXYZ",
|
||
"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
|
||
" \t\n\x0c\r",
|
||
"\x00\x01\x02\x03\x04\x05\x06\x07",
|
||
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
|
||
"\x10\x11\x12\x13\x14\x15\x16\x17",
|
||
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
|
||
"\x7f",
|
||
);
|
||
}
|
||
|
||
#[test]
|
||
fn test_is_ascii_hexdigit() {
|
||
assert_all!(is_ascii_hexdigit, "", "0123456789", "abcdefABCDEF",);
|
||
assert_none!(
|
||
is_ascii_hexdigit,
|
||
"ghijklmnopqrstuvwxyz",
|
||
"GHIJKLMNOQPRSTUVWXYZ",
|
||
"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
|
||
" \t\n\x0c\r",
|
||
"\x00\x01\x02\x03\x04\x05\x06\x07",
|
||
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
|
||
"\x10\x11\x12\x13\x14\x15\x16\x17",
|
||
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
|
||
"\x7f",
|
||
);
|
||
}
|
||
|
||
#[test]
|
||
fn test_is_ascii_punctuation() {
|
||
assert_all!(is_ascii_punctuation, "", "!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",);
|
||
assert_none!(
|
||
is_ascii_punctuation,
|
||
"abcdefghijklmnopqrstuvwxyz",
|
||
"ABCDEFGHIJKLMNOQPRSTUVWXYZ",
|
||
"0123456789",
|
||
" \t\n\x0c\r",
|
||
"\x00\x01\x02\x03\x04\x05\x06\x07",
|
||
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
|
||
"\x10\x11\x12\x13\x14\x15\x16\x17",
|
||
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
|
||
"\x7f",
|
||
);
|
||
}
|
||
|
||
#[test]
|
||
fn test_is_ascii_graphic() {
|
||
assert_all!(
|
||
is_ascii_graphic,
|
||
"",
|
||
"abcdefghijklmnopqrstuvwxyz",
|
||
"ABCDEFGHIJKLMNOQPRSTUVWXYZ",
|
||
"0123456789",
|
||
"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
|
||
);
|
||
assert_none!(
|
||
is_ascii_graphic,
|
||
" \t\n\x0c\r",
|
||
"\x00\x01\x02\x03\x04\x05\x06\x07",
|
||
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
|
||
"\x10\x11\x12\x13\x14\x15\x16\x17",
|
||
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
|
||
"\x7f",
|
||
);
|
||
}
|
||
|
||
#[test]
|
||
fn test_is_ascii_whitespace() {
|
||
assert_all!(is_ascii_whitespace, "", " \t\n\x0c\r",);
|
||
assert_none!(
|
||
is_ascii_whitespace,
|
||
"abcdefghijklmnopqrstuvwxyz",
|
||
"ABCDEFGHIJKLMNOQPRSTUVWXYZ",
|
||
"0123456789",
|
||
"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
|
||
"\x00\x01\x02\x03\x04\x05\x06\x07",
|
||
"\x08\x0b\x0e\x0f",
|
||
"\x10\x11\x12\x13\x14\x15\x16\x17",
|
||
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
|
||
"\x7f",
|
||
);
|
||
}
|
||
|
||
#[test]
|
||
fn test_is_ascii_control() {
|
||
assert_all!(
|
||
is_ascii_control,
|
||
"",
|
||
"\x00\x01\x02\x03\x04\x05\x06\x07",
|
||
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
|
||
"\x10\x11\x12\x13\x14\x15\x16\x17",
|
||
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
|
||
"\x7f",
|
||
);
|
||
assert_none!(
|
||
is_ascii_control,
|
||
"abcdefghijklmnopqrstuvwxyz",
|
||
"ABCDEFGHIJKLMNOQPRSTUVWXYZ",
|
||
"0123456789",
|
||
"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~",
|
||
" ",
|
||
);
|
||
}
|
||
|
||
// `is_ascii` does a good amount of pointer manipulation and has
|
||
// alignment-dependent computation. This is all sanity-checked via
|
||
// `debug_assert!`s, so we test various sizes/alignments thoroughly versus an
|
||
// "obviously correct" baseline function.
|
||
#[test]
|
||
fn test_is_ascii_align_size_thoroughly() {
|
||
// The "obviously-correct" baseline mentioned above.
|
||
fn is_ascii_baseline(s: &[u8]) -> bool {
|
||
s.iter().all(|b| b.is_ascii())
|
||
}
|
||
|
||
// Helper to repeat `l` copies of `b0` followed by `l` copies of `b1`.
|
||
fn repeat_concat(b0: u8, b1: u8, l: usize) -> Vec<u8> {
|
||
use core::iter::repeat;
|
||
repeat(b0).take(l).chain(repeat(b1).take(l)).collect()
|
||
}
|
||
|
||
// Miri is too slow
|
||
let iter = if cfg!(miri) { 0..20 } else { 0..100 };
|
||
|
||
for i in iter {
|
||
#[cfg(not(miri))]
|
||
let cases = &[
|
||
b"a".repeat(i),
|
||
b"\0".repeat(i),
|
||
b"\x7f".repeat(i),
|
||
b"\x80".repeat(i),
|
||
b"\xff".repeat(i),
|
||
repeat_concat(b'a', 0x80u8, i),
|
||
repeat_concat(0x80u8, b'a', i),
|
||
];
|
||
|
||
#[cfg(miri)]
|
||
let cases = &[b"a".repeat(i), b"\x80".repeat(i), repeat_concat(b'a', 0x80u8, i)];
|
||
|
||
for case in cases {
|
||
for pos in 0..=case.len() {
|
||
// Potentially misaligned head
|
||
let prefix = &case[pos..];
|
||
assert_eq!(is_ascii_baseline(prefix), prefix.is_ascii(),);
|
||
|
||
// Potentially misaligned tail
|
||
let suffix = &case[..case.len() - pos];
|
||
|
||
assert_eq!(is_ascii_baseline(suffix), suffix.is_ascii(),);
|
||
|
||
// Both head and tail are potentially misaligned
|
||
let mid = &case[(pos / 2)..(case.len() - (pos / 2))];
|
||
assert_eq!(is_ascii_baseline(mid), mid.is_ascii(),);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
#[test]
|
||
fn ascii_const() {
|
||
// test that the `is_ascii` methods of `char` and `u8` are usable in a const context
|
||
|
||
const CHAR_IS_ASCII: bool = 'a'.is_ascii();
|
||
assert!(CHAR_IS_ASCII);
|
||
|
||
const BYTE_IS_ASCII: bool = 97u8.is_ascii();
|
||
assert!(BYTE_IS_ASCII);
|
||
}
|
||
|
||
#[test]
|
||
fn ascii_ctype_const() {
|
||
macro_rules! suite {
|
||
( $( $fn:ident => [$a:ident, $A:ident, $nine:ident, $dot:ident, $space:ident]; )* ) => {
|
||
$(
|
||
mod $fn {
|
||
const CHAR_A_LOWER: bool = 'a'.$fn();
|
||
const CHAR_A_UPPER: bool = 'A'.$fn();
|
||
const CHAR_NINE: bool = '9'.$fn();
|
||
const CHAR_DOT: bool = '.'.$fn();
|
||
const CHAR_SPACE: bool = ' '.$fn();
|
||
|
||
const U8_A_LOWER: bool = b'a'.$fn();
|
||
const U8_A_UPPER: bool = b'A'.$fn();
|
||
const U8_NINE: bool = b'9'.$fn();
|
||
const U8_DOT: bool = b'.'.$fn();
|
||
const U8_SPACE: bool = b' '.$fn();
|
||
|
||
pub fn run() {
|
||
assert_eq!(CHAR_A_LOWER, $a);
|
||
assert_eq!(CHAR_A_UPPER, $A);
|
||
assert_eq!(CHAR_NINE, $nine);
|
||
assert_eq!(CHAR_DOT, $dot);
|
||
assert_eq!(CHAR_SPACE, $space);
|
||
|
||
assert_eq!(U8_A_LOWER, $a);
|
||
assert_eq!(U8_A_UPPER, $A);
|
||
assert_eq!(U8_NINE, $nine);
|
||
assert_eq!(U8_DOT, $dot);
|
||
assert_eq!(U8_SPACE, $space);
|
||
}
|
||
}
|
||
)*
|
||
|
||
$( $fn::run(); )*
|
||
}
|
||
}
|
||
|
||
suite! {
|
||
// 'a' 'A' '9' '.' ' '
|
||
is_ascii_alphabetic => [true, true, false, false, false];
|
||
is_ascii_uppercase => [false, true, false, false, false];
|
||
is_ascii_lowercase => [true, false, false, false, false];
|
||
is_ascii_alphanumeric => [true, true, true, false, false];
|
||
is_ascii_digit => [false, false, true, false, false];
|
||
is_ascii_octdigit => [false, false, false, false, false];
|
||
is_ascii_hexdigit => [true, true, true, false, false];
|
||
is_ascii_punctuation => [false, false, false, true, false];
|
||
is_ascii_graphic => [true, true, true, true, false];
|
||
is_ascii_whitespace => [false, false, false, false, true];
|
||
is_ascii_control => [false, false, false, false, false];
|
||
}
|
||
}
|