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Diffstat (limited to 'vendor/encode_unicode/tests/oks.rs')
| -rw-r--r-- | vendor/encode_unicode/tests/oks.rs | 284 |
1 files changed, 284 insertions, 0 deletions
diff --git a/vendor/encode_unicode/tests/oks.rs b/vendor/encode_unicode/tests/oks.rs new file mode 100644 index 0000000..8bab37f --- /dev/null +++ b/vendor/encode_unicode/tests/oks.rs @@ -0,0 +1,284 @@ +/* Copyright 2016 The encode_unicode Developers + * + * Licensed under the Apache License, Version 2.0, <LICENSE-APACHE or + * http://apache.org/licenses/LICENSE-2.0> or the MIT license <LICENSE-MIT or + * http://opensource.org/licenses/MIT>, at your option. This file may not be + * copied, modified, or distributed except according to those terms. + */ + +//! Test that every method gives the correct result for valid values. +//! Except iterators, which are stateful. + +use std::char; +use std::str::{self,FromStr}; +use std::cmp::Ordering; +use std::hash::{Hash,Hasher}; +use std::collections::hash_map::DefaultHasher; +#[allow(deprecated,unused)] +use std::ascii::AsciiExt; +use std::iter::FromIterator; +extern crate encode_unicode; +use encode_unicode::*; + + +#[test] +fn equal_defaults() { + assert_eq!(Utf8Char::default().to_char(), char::default()); + assert_eq!(Utf16Char::default().to_char(), char::default()); +} + +#[test] +fn same_size_as_char() { + use std::mem::size_of; + assert_eq!(size_of::<Utf8Char>(), size_of::<char>()); + assert_eq!(size_of::<Utf16Char>(), size_of::<char>()); +} + +#[test] +fn utf16chars_to_string() { + let s = "aå\u{10ffff}‽\u{100000}\u{fee1}"; + let u16cs = s.chars().map(|c| Utf16Char::from(c) ).collect::<Vec<Utf16Char>>(); + + let mut from_refs: String = u16cs.iter().collect(); + assert_eq!(&from_refs, s); + from_refs.extend(&u16cs); + assert_eq!(&from_refs[s.len()..], s); + + let mut from_vals: String = u16cs.iter().cloned().collect(); + assert_eq!(&from_vals, s); + from_vals.extend(u16cs); + assert_eq!(&from_vals[s.len()..], s); +} + + +const EDGES_AND_BETWEEN: [char;19] = [ + '\u{0}',// min + '\u{3b}',// middle ASCII + 'A',// min ASCII uppercase + 'N',// middle ASCII uppercase + 'Z',// max ASCII uppercase + 'a',// min ASCII lowercase + 'm',// middle ASCII lowercase + 'z',// max ASCII lowercase + '\u{7f}',// max ASCII and 1-byte UTF-8 + '\u{80}',// min 2-byte UTF-8 + '\u{111}',// middle + '\u{7ff}',// max 2-byte UTF-8 + '\u{800}',// min 3-byte UTF-8 + '\u{d7ff}',// before reserved + '\u{e000}',// after reserved + '\u{ffff}',// max UTF-16 single and 3-byte UTF-8 + '\u{10000}',// min UTF-16 surrogate and 4-byte UTF-8 + '\u{abcde}',// middle + '\u{10ffff}',// max +]; + +fn eq_cmp_hash(c: char) -> (Utf8Char, Utf16Char) { + fn hash<T:Hash>(v: T) -> u64 { + #[allow(deprecated)] + let mut hasher = DefaultHasher::new(); + v.hash(&mut hasher); + hasher.finish() + } + let u8c = c.to_utf8(); + assert_eq!(u8c.to_char(), c); + assert_eq!(u8c, u8c); + assert_eq!(hash(u8c), hash(u8c)); + assert_eq!(u8c.cmp(&u8c), Ordering::Equal); + assert!(u8c.eq_ignore_ascii_case(&u8c)); + let u16c = c.to_utf16(); + assert_eq!(u16c.to_char(), c); + assert_eq!(u16c, u16c); + assert_eq!(hash(u16c), hash(c)); + assert_eq!(u16c.cmp(&u16c), Ordering::Equal); + assert!(u16c.eq_ignore_ascii_case(&u16c)); + + assert_eq!(u8c, c); + assert_eq!(c, u8c); + assert_eq!(u16c, c); + assert_eq!(c, u16c); + assert_eq!(u8c, u16c); + assert_eq!(u16c, u8c); + assert_eq!(u8c == c as u8, c <= '\u{7F}'); + assert_eq!(u16c == c as u8, c <= '\u{FF}'); + assert_eq!(u16c == c as u16, c <= '\u{FFFF}'); + + assert_eq!(u8c.partial_cmp(&c), Some(Ordering::Equal)); + assert_eq!(c.partial_cmp(&u8c), Some(Ordering::Equal)); + assert_eq!(u16c.partial_cmp(&c), Some(Ordering::Equal)); + assert_eq!(c.partial_cmp(&u16c), Some(Ordering::Equal)); + assert_eq!(u8c.partial_cmp(&u16c), Some(Ordering::Equal)); + assert_eq!(u16c.partial_cmp(&u8c), Some(Ordering::Equal)); + + + for &other in &EDGES_AND_BETWEEN { + let u8other = other.to_utf8(); + assert_eq!(u8c == u8other, c == other); + assert_eq!(hash(u8c)==hash(u8other), hash(c)==hash(other)); + assert_eq!(u8c.cmp(&u8other), c.cmp(&other)); + assert_eq!(u8c.eq_ignore_ascii_case(&u8other), c.eq_ignore_ascii_case(&other)); + assert_eq!(u8c.partial_cmp(&other), c.partial_cmp(&other)); + assert_eq!(c.partial_cmp(&u8other), c.partial_cmp(&other)); + assert_eq!(u8other.partial_cmp(&c), other.partial_cmp(&c)); + assert_eq!(other.partial_cmp(&u8c), other.partial_cmp(&c)); + assert_eq!(u8c == other as u8, other as u8 <= 127 && c == other as u8 as char); + + let u16other = other.to_utf16(); + assert_eq!(u16c == u16other, c == other); + assert_eq!(hash(u16c)==hash(u16other), hash(c)==hash(other)); + assert_eq!(u16c.cmp(&u16other), c.cmp(&other)); + assert_eq!(u16c.eq_ignore_ascii_case(&u16other), c.eq_ignore_ascii_case(&other)); + assert_eq!(u16c.partial_cmp(&other), c.partial_cmp(&other)); + assert_eq!(c.partial_cmp(&u16other), c.partial_cmp(&other)); + assert_eq!(u16other.partial_cmp(&c), other.partial_cmp(&c)); + assert_eq!(other.partial_cmp(&u16c), other.partial_cmp(&c)); + assert_eq!(u16c == other as u8, c == other as u8 as char); + assert_eq!(u16c == other as u16, c as u32 == other as u16 as u32); + + assert_eq!(u8c == u16other, c == other); + assert_eq!(u16c == u8other, c == other); + assert_eq!(u8c.partial_cmp(&u16other), c.partial_cmp(&other)); + assert_eq!(u16c.partial_cmp(&u8other), c.partial_cmp(&other)); + assert_eq!(u8other.partial_cmp(&u16c), other.partial_cmp(&c)); + assert_eq!(u16other.partial_cmp(&u8c), other.partial_cmp(&c)); + } + (u8c, u16c) +} + +fn iterators(c: char) { + let mut iter = c.iter_utf8_bytes(); + let mut buf = [0; 4]; + let mut iter_ref = c.encode_utf8(&mut buf[..]).as_bytes().iter(); + for _ in 0..6 { + assert_eq!(iter.size_hint(), iter_ref.size_hint()); + assert_eq!(format!("{:?}", iter), format!("{:?}", iter_ref.as_slice())); + assert_eq!(iter.next(), iter_ref.next().cloned()); + } + + let mut iter = c.iter_utf16_units(); + let mut buf = [0; 2]; + let mut iter_ref = c.encode_utf16(&mut buf[..]).iter(); + for _ in 0..4 { + assert_eq!(iter.size_hint(), iter_ref.size_hint()); + assert_eq!(format!("{:?}", iter), format!("{:?}", iter_ref.as_slice())); + assert_eq!(iter.next(), iter_ref.next().cloned()); + } +} + +fn test(c: char) { + assert_eq!(char::from_u32(c as u32), Some(c)); + assert_eq!(char::from_u32_detailed(c as u32), Ok(c)); + assert_eq!(unsafe{ char::from_u32_unchecked(c as u32) }, c); + let (u8c, u16c) = eq_cmp_hash(c); + iterators(c); + assert_eq!(Utf16Char::from(u8c), u16c); + assert_eq!(Utf8Char::from(u16c), u8c); + let utf8_len = c.len_utf8(); + let utf16_len = c.len_utf16(); + let mut as_str = c.to_string(); + + // UTF-8 + let mut buf = [0; 4]; + let reference = c.encode_utf8(&mut buf[..]).as_bytes(); + let len = reference.len(); // short name because it is used in many places. + assert_eq!(len, utf8_len); + assert_eq!(reference[0].extra_utf8_bytes(), Ok(len-1)); + assert_eq!(reference[0].extra_utf8_bytes_unchecked(), len-1); + assert_eq!(AsRef::<[u8]>::as_ref(&u8c), reference); + + let (arr,arrlen) = u8c.to_array(); + assert_eq!(arrlen, len); + assert_eq!(Utf8Char::from_array(arr), Ok(u8c)); + assert_eq!(c.to_utf8_array(), (arr, len)); + + let str_ = str::from_utf8(reference).unwrap(); + let ustr = Utf8Char::from_str(str_).unwrap(); + assert_eq!(ustr.to_array().0, arr);// bitwise equality + assert_eq!(char::from_utf8_array(arr), Ok(c)); + let mut longer = [0xff; 5]; // 0xff is never valid + longer[..len].copy_from_slice(reference); + assert_eq!(char::from_utf8_slice_start(reference), Ok((c,len))); + assert_eq!(char::from_utf8_slice_start(&longer), Ok((c,len))); + assert_eq!(Utf8Char::from_slice_start(reference), Ok((u8c,len))); + assert_eq!(Utf8Char::from_slice_start(&longer), Ok((u8c,len))); + for other in &mut longer[len..] {*other = b'?'} + assert_eq!(Utf8Char::from_str(str_), Ok(u8c)); + assert_eq!(Utf8Char::from_str_start(str_), Ok((u8c,len))); + assert_eq!(Utf8Char::from_str_start(str::from_utf8(&longer).unwrap()), Ok((u8c,len))); + unsafe { + // Hopefully make bugs easier to catch by making reads into unallocated memory by filling + // a jemalloc bin. See table on http://jemalloc.net/jemalloc.3.html for bin sizes. + // I have no idea whether this works. + let mut boxed = Box::new([0xffu8; 16]); + let start = boxed.len()-len; // reach the end + boxed[start..].copy_from_slice(reference); + let slice = &boxed[start..start]; // length of slice should be ignored. + assert_eq!(Utf8Char::from_slice_start_unchecked(slice), (u8c,len)); + } + assert_eq!(&Vec::<u8>::from_iter(Some(u8c))[..], reference); + assert_eq!(&String::from_iter(Some(u8c))[..], str_); + assert_eq!(format!("{:?}", u8c), format!("{:?}", c)); + assert_eq!(format!("{}", u8c), format!("{}", c)); + assert_eq!(u8c.is_ascii(), c.is_ascii()); + assert_eq!(u8c.to_ascii_lowercase().to_char(), c.to_ascii_lowercase()); + assert_eq!(u8c.to_ascii_uppercase().to_char(), c.to_ascii_uppercase()); + + // UTF-16 + let mut buf = [0; 2]; + let reference = c.encode_utf16(&mut buf[..]); + let len = reference.len(); + assert_eq!(len, utf16_len); + assert_eq!(reference[0].utf16_needs_extra_unit(), Ok(len==2)); + assert_eq!(reference[0].is_utf16_leading_surrogate(), len==2); + assert_eq!(u16c.as_ref(), reference); + let mut longer = [0; 3]; + longer[..len].copy_from_slice(reference); + assert_eq!(char::from_utf16_slice_start(reference), Ok((c,len))); + assert_eq!(char::from_utf16_slice_start(&longer), Ok((c,len))); + assert_eq!(Utf16Char::from_slice_start(reference), Ok((u16c,len))); + assert_eq!(Utf16Char::from_slice_start(&longer), Ok((u16c,len))); + assert_eq!(Utf16Char::from_str(&as_str), Ok(u16c)); + as_str.push(c); + assert_eq!(Utf16Char::from_str_start(&as_str), Ok((u16c,utf8_len))); + unsafe { + // Hopefully make bugs easier to catch by making reads into unallocated memory by filling + // a jemalloc bin. See table on http://jemalloc.net/jemalloc.3.html for bin sizes. + // I have no idea whether this works. + let mut boxed = Box::new([0u16; 8]); + let start = boxed.len()-len; // reach the end + boxed[start..].copy_from_slice(reference); + let slice = &boxed[start..start]; // length of slice should be ignored. + assert_eq!(Utf16Char::from_slice_start_unchecked(slice), (u16c,len)); + } + let array = c.to_utf16_array(); + let tuple = c.to_utf16_tuple(); + assert_eq!(&array[..reference.len()], reference); + assert_eq!(tuple, (reference[0],reference.get(1).cloned())); + assert_eq!(char::from_utf16_array(array), Ok(c)); + assert_eq!(char::from_utf16_tuple(tuple), Ok(c)); + assert_eq!(c.to_utf16().to_char(), c); + assert_eq!(&Vec::<u16>::from_iter(Some(u16c))[..], reference); + assert_eq!(format!("{:?}", u16c), format!("{:?}", c)); + assert_eq!(format!("{}", u16c), format!("{}", c)); + assert_eq!(u16c.is_ascii(), c.is_ascii()); + assert_eq!(u16c.to_ascii_lowercase().to_char(), c.to_ascii_lowercase()); + assert_eq!(u16c.to_ascii_uppercase().to_char(), c.to_ascii_uppercase()); +} + + +#[test] +fn edges_middle() { + for &c in &EDGES_AND_BETWEEN { + test(c); + } +} + + +#[test] +#[ignore] +fn all() { + for cp in std::iter::Iterator::chain(0..0xd800, 0xe000..0x110000) { + let c = char::from_u32(cp).expect("not a valid char"); + test(c); + } +} |