From 698f8c2f01ea549d77d7dc3338a12e04c11057b9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:02:58 +0200 Subject: Adding upstream version 1.64.0+dfsg1. Signed-off-by: Daniel Baumann --- library/std/src/sys_common/wtf8/tests.rs | 409 +++++++++++++++++++++++++++++++ 1 file changed, 409 insertions(+) create mode 100644 library/std/src/sys_common/wtf8/tests.rs (limited to 'library/std/src/sys_common/wtf8/tests.rs') diff --git a/library/std/src/sys_common/wtf8/tests.rs b/library/std/src/sys_common/wtf8/tests.rs new file mode 100644 index 000000000..931996791 --- /dev/null +++ b/library/std/src/sys_common/wtf8/tests.rs @@ -0,0 +1,409 @@ +use super::*; +use crate::borrow::Cow; + +#[test] +fn code_point_from_u32() { + assert!(CodePoint::from_u32(0).is_some()); + assert!(CodePoint::from_u32(0xD800).is_some()); + assert!(CodePoint::from_u32(0x10FFFF).is_some()); + assert!(CodePoint::from_u32(0x110000).is_none()); +} + +#[test] +fn code_point_to_u32() { + fn c(value: u32) -> CodePoint { + CodePoint::from_u32(value).unwrap() + } + assert_eq!(c(0).to_u32(), 0); + assert_eq!(c(0xD800).to_u32(), 0xD800); + assert_eq!(c(0x10FFFF).to_u32(), 0x10FFFF); +} + +#[test] +fn code_point_from_char() { + assert_eq!(CodePoint::from_char('a').to_u32(), 0x61); + assert_eq!(CodePoint::from_char('💩').to_u32(), 0x1F4A9); +} + +#[test] +fn code_point_to_string() { + assert_eq!(format!("{:?}", CodePoint::from_char('a')), "U+0061"); + assert_eq!(format!("{:?}", CodePoint::from_char('💩')), "U+1F4A9"); +} + +#[test] +fn code_point_to_char() { + fn c(value: u32) -> CodePoint { + CodePoint::from_u32(value).unwrap() + } + assert_eq!(c(0x61).to_char(), Some('a')); + assert_eq!(c(0x1F4A9).to_char(), Some('💩')); + assert_eq!(c(0xD800).to_char(), None); +} + +#[test] +fn code_point_to_char_lossy() { + fn c(value: u32) -> CodePoint { + CodePoint::from_u32(value).unwrap() + } + assert_eq!(c(0x61).to_char_lossy(), 'a'); + assert_eq!(c(0x1F4A9).to_char_lossy(), '💩'); + assert_eq!(c(0xD800).to_char_lossy(), '\u{FFFD}'); +} + +#[test] +fn wtf8buf_new() { + assert_eq!(Wtf8Buf::new().bytes, b""); +} + +#[test] +fn wtf8buf_from_str() { + assert_eq!(Wtf8Buf::from_str("").bytes, b""); + assert_eq!(Wtf8Buf::from_str("aé 💩").bytes, b"a\xC3\xA9 \xF0\x9F\x92\xA9"); +} + +#[test] +fn wtf8buf_from_string() { + assert_eq!(Wtf8Buf::from_string(String::from("")).bytes, b""); + assert_eq!(Wtf8Buf::from_string(String::from("aé 💩")).bytes, b"a\xC3\xA9 \xF0\x9F\x92\xA9"); +} + +#[test] +fn wtf8buf_from_wide() { + assert_eq!(Wtf8Buf::from_wide(&[]).bytes, b""); + assert_eq!( + Wtf8Buf::from_wide(&[0x61, 0xE9, 0x20, 0xD83D, 0xD83D, 0xDCA9]).bytes, + b"a\xC3\xA9 \xED\xA0\xBD\xF0\x9F\x92\xA9" + ); +} + +#[test] +fn wtf8buf_push_str() { + let mut string = Wtf8Buf::new(); + assert_eq!(string.bytes, b""); + string.push_str("aé 💩"); + assert_eq!(string.bytes, b"a\xC3\xA9 \xF0\x9F\x92\xA9"); +} + +#[test] +fn wtf8buf_push_char() { + let mut string = Wtf8Buf::from_str("aé "); + assert_eq!(string.bytes, b"a\xC3\xA9 "); + string.push_char('💩'); + assert_eq!(string.bytes, b"a\xC3\xA9 \xF0\x9F\x92\xA9"); +} + +#[test] +fn wtf8buf_push() { + let mut string = Wtf8Buf::from_str("aé "); + assert_eq!(string.bytes, b"a\xC3\xA9 "); + string.push(CodePoint::from_char('💩')); + assert_eq!(string.bytes, b"a\xC3\xA9 \xF0\x9F\x92\xA9"); + + fn c(value: u32) -> CodePoint { + CodePoint::from_u32(value).unwrap() + } + + let mut string = Wtf8Buf::new(); + string.push(c(0xD83D)); // lead + string.push(c(0xDCA9)); // trail + assert_eq!(string.bytes, b"\xF0\x9F\x92\xA9"); // Magic! + + let mut string = Wtf8Buf::new(); + string.push(c(0xD83D)); // lead + string.push(c(0x20)); // not surrogate + string.push(c(0xDCA9)); // trail + assert_eq!(string.bytes, b"\xED\xA0\xBD \xED\xB2\xA9"); + + let mut string = Wtf8Buf::new(); + string.push(c(0xD800)); // lead + string.push(c(0xDBFF)); // lead + assert_eq!(string.bytes, b"\xED\xA0\x80\xED\xAF\xBF"); + + let mut string = Wtf8Buf::new(); + string.push(c(0xD800)); // lead + string.push(c(0xE000)); // not surrogate + assert_eq!(string.bytes, b"\xED\xA0\x80\xEE\x80\x80"); + + let mut string = Wtf8Buf::new(); + string.push(c(0xD7FF)); // not surrogate + string.push(c(0xDC00)); // trail + assert_eq!(string.bytes, b"\xED\x9F\xBF\xED\xB0\x80"); + + let mut string = Wtf8Buf::new(); + string.push(c(0x61)); // not surrogate, < 3 bytes + string.push(c(0xDC00)); // trail + assert_eq!(string.bytes, b"\x61\xED\xB0\x80"); + + let mut string = Wtf8Buf::new(); + string.push(c(0xDC00)); // trail + assert_eq!(string.bytes, b"\xED\xB0\x80"); +} + +#[test] +fn wtf8buf_push_wtf8() { + let mut string = Wtf8Buf::from_str("aé"); + assert_eq!(string.bytes, b"a\xC3\xA9"); + string.push_wtf8(Wtf8::from_str(" 💩")); + assert_eq!(string.bytes, b"a\xC3\xA9 \xF0\x9F\x92\xA9"); + + fn w(v: &[u8]) -> &Wtf8 { + unsafe { Wtf8::from_bytes_unchecked(v) } + } + + let mut string = Wtf8Buf::new(); + string.push_wtf8(w(b"\xED\xA0\xBD")); // lead + string.push_wtf8(w(b"\xED\xB2\xA9")); // trail + assert_eq!(string.bytes, b"\xF0\x9F\x92\xA9"); // Magic! + + let mut string = Wtf8Buf::new(); + string.push_wtf8(w(b"\xED\xA0\xBD")); // lead + string.push_wtf8(w(b" ")); // not surrogate + string.push_wtf8(w(b"\xED\xB2\xA9")); // trail + assert_eq!(string.bytes, b"\xED\xA0\xBD \xED\xB2\xA9"); + + let mut string = Wtf8Buf::new(); + string.push_wtf8(w(b"\xED\xA0\x80")); // lead + string.push_wtf8(w(b"\xED\xAF\xBF")); // lead + assert_eq!(string.bytes, b"\xED\xA0\x80\xED\xAF\xBF"); + + let mut string = Wtf8Buf::new(); + string.push_wtf8(w(b"\xED\xA0\x80")); // lead + string.push_wtf8(w(b"\xEE\x80\x80")); // not surrogate + assert_eq!(string.bytes, b"\xED\xA0\x80\xEE\x80\x80"); + + let mut string = Wtf8Buf::new(); + string.push_wtf8(w(b"\xED\x9F\xBF")); // not surrogate + string.push_wtf8(w(b"\xED\xB0\x80")); // trail + assert_eq!(string.bytes, b"\xED\x9F\xBF\xED\xB0\x80"); + + let mut string = Wtf8Buf::new(); + string.push_wtf8(w(b"a")); // not surrogate, < 3 bytes + string.push_wtf8(w(b"\xED\xB0\x80")); // trail + assert_eq!(string.bytes, b"\x61\xED\xB0\x80"); + + let mut string = Wtf8Buf::new(); + string.push_wtf8(w(b"\xED\xB0\x80")); // trail + assert_eq!(string.bytes, b"\xED\xB0\x80"); +} + +#[test] +fn wtf8buf_truncate() { + let mut string = Wtf8Buf::from_str("aé"); + string.truncate(1); + assert_eq!(string.bytes, b"a"); +} + +#[test] +#[should_panic] +fn wtf8buf_truncate_fail_code_point_boundary() { + let mut string = Wtf8Buf::from_str("aé"); + string.truncate(2); +} + +#[test] +#[should_panic] +fn wtf8buf_truncate_fail_longer() { + let mut string = Wtf8Buf::from_str("aé"); + string.truncate(4); +} + +#[test] +fn wtf8buf_into_string() { + let mut string = Wtf8Buf::from_str("aé 💩"); + assert_eq!(string.clone().into_string(), Ok(String::from("aé 💩"))); + string.push(CodePoint::from_u32(0xD800).unwrap()); + assert_eq!(string.clone().into_string(), Err(string)); +} + +#[test] +fn wtf8buf_into_string_lossy() { + let mut string = Wtf8Buf::from_str("aé 💩"); + assert_eq!(string.clone().into_string_lossy(), String::from("aé 💩")); + string.push(CodePoint::from_u32(0xD800).unwrap()); + assert_eq!(string.clone().into_string_lossy(), String::from("aé 💩�")); +} + +#[test] +fn wtf8buf_from_iterator() { + fn f(values: &[u32]) -> Wtf8Buf { + values.iter().map(|&c| CodePoint::from_u32(c).unwrap()).collect::() + } + assert_eq!(f(&[0x61, 0xE9, 0x20, 0x1F4A9]).bytes, b"a\xC3\xA9 \xF0\x9F\x92\xA9"); + + assert_eq!(f(&[0xD83D, 0xDCA9]).bytes, b"\xF0\x9F\x92\xA9"); // Magic! + assert_eq!(f(&[0xD83D, 0x20, 0xDCA9]).bytes, b"\xED\xA0\xBD \xED\xB2\xA9"); + assert_eq!(f(&[0xD800, 0xDBFF]).bytes, b"\xED\xA0\x80\xED\xAF\xBF"); + assert_eq!(f(&[0xD800, 0xE000]).bytes, b"\xED\xA0\x80\xEE\x80\x80"); + assert_eq!(f(&[0xD7FF, 0xDC00]).bytes, b"\xED\x9F\xBF\xED\xB0\x80"); + assert_eq!(f(&[0x61, 0xDC00]).bytes, b"\x61\xED\xB0\x80"); + assert_eq!(f(&[0xDC00]).bytes, b"\xED\xB0\x80"); +} + +#[test] +fn wtf8buf_extend() { + fn e(initial: &[u32], extended: &[u32]) -> Wtf8Buf { + fn c(value: &u32) -> CodePoint { + CodePoint::from_u32(*value).unwrap() + } + let mut string = initial.iter().map(c).collect::(); + string.extend(extended.iter().map(c)); + string + } + + assert_eq!(e(&[0x61, 0xE9], &[0x20, 0x1F4A9]).bytes, b"a\xC3\xA9 \xF0\x9F\x92\xA9"); + + assert_eq!(e(&[0xD83D], &[0xDCA9]).bytes, b"\xF0\x9F\x92\xA9"); // Magic! + assert_eq!(e(&[0xD83D, 0x20], &[0xDCA9]).bytes, b"\xED\xA0\xBD \xED\xB2\xA9"); + assert_eq!(e(&[0xD800], &[0xDBFF]).bytes, b"\xED\xA0\x80\xED\xAF\xBF"); + assert_eq!(e(&[0xD800], &[0xE000]).bytes, b"\xED\xA0\x80\xEE\x80\x80"); + assert_eq!(e(&[0xD7FF], &[0xDC00]).bytes, b"\xED\x9F\xBF\xED\xB0\x80"); + assert_eq!(e(&[0x61], &[0xDC00]).bytes, b"\x61\xED\xB0\x80"); + assert_eq!(e(&[], &[0xDC00]).bytes, b"\xED\xB0\x80"); +} + +#[test] +fn wtf8buf_show() { + let mut string = Wtf8Buf::from_str("a\té \u{7f}💩\r"); + string.push(CodePoint::from_u32(0xD800).unwrap()); + assert_eq!(format!("{string:?}"), "\"a\\té \\u{7f}\u{1f4a9}\\r\\u{d800}\""); +} + +#[test] +fn wtf8buf_as_slice() { + assert_eq!(Wtf8Buf::from_str("aé").as_slice(), Wtf8::from_str("aé")); +} + +#[test] +fn wtf8buf_show_str() { + let text = "a\té 💩\r"; + let string = Wtf8Buf::from_str(text); + assert_eq!(format!("{text:?}"), format!("{string:?}")); +} + +#[test] +fn wtf8_from_str() { + assert_eq!(&Wtf8::from_str("").bytes, b""); + assert_eq!(&Wtf8::from_str("aé 💩").bytes, b"a\xC3\xA9 \xF0\x9F\x92\xA9"); +} + +#[test] +fn wtf8_len() { + assert_eq!(Wtf8::from_str("").len(), 0); + assert_eq!(Wtf8::from_str("aé 💩").len(), 8); +} + +#[test] +fn wtf8_slice() { + assert_eq!(&Wtf8::from_str("aé 💩")[1..4].bytes, b"\xC3\xA9 "); +} + +#[test] +#[should_panic] +fn wtf8_slice_not_code_point_boundary() { + let _ = &Wtf8::from_str("aé 💩")[2..4]; +} + +#[test] +fn wtf8_slice_from() { + assert_eq!(&Wtf8::from_str("aé 💩")[1..].bytes, b"\xC3\xA9 \xF0\x9F\x92\xA9"); +} + +#[test] +#[should_panic] +fn wtf8_slice_from_not_code_point_boundary() { + let _ = &Wtf8::from_str("aé 💩")[2..]; +} + +#[test] +fn wtf8_slice_to() { + assert_eq!(&Wtf8::from_str("aé 💩")[..4].bytes, b"a\xC3\xA9 "); +} + +#[test] +#[should_panic] +fn wtf8_slice_to_not_code_point_boundary() { + let _ = &Wtf8::from_str("aé 💩")[5..]; +} + +#[test] +fn wtf8_ascii_byte_at() { + let slice = Wtf8::from_str("aé 💩"); + assert_eq!(slice.ascii_byte_at(0), b'a'); + assert_eq!(slice.ascii_byte_at(1), b'\xFF'); + assert_eq!(slice.ascii_byte_at(2), b'\xFF'); + assert_eq!(slice.ascii_byte_at(3), b' '); + assert_eq!(slice.ascii_byte_at(4), b'\xFF'); +} + +#[test] +fn wtf8_code_points() { + fn c(value: u32) -> CodePoint { + CodePoint::from_u32(value).unwrap() + } + fn cp(string: &Wtf8Buf) -> Vec> { + string.code_points().map(|c| c.to_char()).collect::>() + } + let mut string = Wtf8Buf::from_str("é "); + assert_eq!(cp(&string), [Some('é'), Some(' ')]); + string.push(c(0xD83D)); + assert_eq!(cp(&string), [Some('é'), Some(' '), None]); + string.push(c(0xDCA9)); + assert_eq!(cp(&string), [Some('é'), Some(' '), Some('💩')]); +} + +#[test] +fn wtf8_as_str() { + assert_eq!(Wtf8::from_str("").as_str(), Some("")); + assert_eq!(Wtf8::from_str("aé 💩").as_str(), Some("aé 💩")); + let mut string = Wtf8Buf::new(); + string.push(CodePoint::from_u32(0xD800).unwrap()); + assert_eq!(string.as_str(), None); +} + +#[test] +fn wtf8_to_string_lossy() { + assert_eq!(Wtf8::from_str("").to_string_lossy(), Cow::Borrowed("")); + assert_eq!(Wtf8::from_str("aé 💩").to_string_lossy(), Cow::Borrowed("aé 💩")); + let mut string = Wtf8Buf::from_str("aé 💩"); + string.push(CodePoint::from_u32(0xD800).unwrap()); + let expected: Cow<'_, str> = Cow::Owned(String::from("aé 💩�")); + assert_eq!(string.to_string_lossy(), expected); +} + +#[test] +fn wtf8_display() { + fn d(b: &[u8]) -> String { + (&unsafe { Wtf8::from_bytes_unchecked(b) }).to_string() + } + + assert_eq!("", d("".as_bytes())); + assert_eq!("aé 💩", d("aé 💩".as_bytes())); + + let mut string = Wtf8Buf::from_str("aé 💩"); + string.push(CodePoint::from_u32(0xD800).unwrap()); + assert_eq!("aé 💩�", d(string.as_inner())); +} + +#[test] +fn wtf8_encode_wide() { + let mut string = Wtf8Buf::from_str("aé "); + string.push(CodePoint::from_u32(0xD83D).unwrap()); + string.push_char('💩'); + assert_eq!( + string.encode_wide().collect::>(), + vec![0x61, 0xE9, 0x20, 0xD83D, 0xD83D, 0xDCA9] + ); +} + +#[test] +fn wtf8_encode_wide_size_hint() { + let string = Wtf8Buf::from_str("\u{12345}"); + let mut iter = string.encode_wide(); + assert_eq!((1, Some(8)), iter.size_hint()); + iter.next().unwrap(); + assert_eq!((1, Some(1)), iter.size_hint()); + iter.next().unwrap(); + assert_eq!((0, Some(0)), iter.size_hint()); + assert!(iter.next().is_none()); +} -- cgit v1.2.3