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// Copyright 2013-2014 The rust-url developers.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.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.
#![allow(clippy::assigning_clones)]
use crate::test::TestFn;
use std::char;
use std::fmt::Write;
use idna::uts46::verify_dns_length;
use idna::uts46::ProcessingError;
use idna::uts46::ProcessingSuccess;
use idna::uts46::{AsciiDenyList, DnsLength, ErrorPolicy, Hyphens};
use idna::Errors;
pub fn collect_tests<F: FnMut(String, TestFn)>(add_test: &mut F) {
// https://www.unicode.org/Public/idna/13.0.0/IdnaTestV2.txt
for (i, line) in include_str!("IdnaTestV2.txt").lines().enumerate() {
if line.is_empty() || line.starts_with('#') {
continue;
}
// Remove comments
let line = match line.find('#') {
Some(index) => &line[0..index],
None => line,
};
let mut pieces = line.split(';').map(|x| x.trim()).collect::<Vec<&str>>();
let source = unescape(pieces.remove(0));
// ToUnicode
let mut to_unicode = unescape(pieces.remove(0));
if to_unicode.is_empty() {
to_unicode = source.clone();
}
let to_unicode_status = status(pieces.remove(0));
// ToAsciiN
let to_ascii_n = pieces.remove(0);
let to_ascii_n = if to_ascii_n.is_empty() {
to_unicode.clone()
} else {
to_ascii_n.to_owned()
};
let to_ascii_n_status = pieces.remove(0);
let to_ascii_n_status = if to_ascii_n_status.is_empty() {
to_unicode_status.clone()
} else {
status(to_ascii_n_status)
};
let test_name = format!("UTS #46 line {}", i + 1);
add_test(
test_name,
TestFn::DynTestFn(Box::new(move || {
let config = idna::uts46::Uts46::new();
// http://unicode.org/reports/tr46/#Deviations
// applications that perform IDNA2008 lookup are not required to check
// for these contexts, so we skip all tests annotated with C*
// Everybody ignores V2
// https://github.com/servo/rust-url/pull/240
// https://github.com/whatwg/url/issues/53#issuecomment-181528158
// http://www.unicode.org/review/pri317/
// "The special error codes X3 and X4_2 are now returned where a toASCII error code
// was formerly being generated in toUnicode due to an empty label."
// This is not implemented yet, so we skip toUnicode X4_2 tests for now, too.
let (to_unicode_value, to_unicode_result) =
config.to_unicode(source.as_bytes(), AsciiDenyList::STD3, Hyphens::Check);
let to_unicode_result = to_unicode_result.map(|()| to_unicode_value.into_owned());
check(
&source,
(&to_unicode, &to_unicode_status),
to_unicode_result,
|e| e == "X4_2",
);
let to_ascii_n_result = config.to_ascii(
source.as_bytes(),
AsciiDenyList::STD3,
Hyphens::Check,
DnsLength::Verify,
);
check(
&source,
(&to_ascii_n, &to_ascii_n_status),
to_ascii_n_result.map(|cow| cow.into_owned()),
|_| false,
);
let mut to_unicode_simultaneous = String::new();
let mut to_ascii_simultaneous = String::new();
let (to_unicode_simultaneous_result, to_ascii_simultaneous_result) = match config
.process(
source.as_bytes(),
AsciiDenyList::STD3,
Hyphens::Check,
ErrorPolicy::MarkErrors,
|_, _, _| true,
&mut to_unicode_simultaneous,
Some(&mut to_ascii_simultaneous),
) {
Ok(ProcessingSuccess::Passthrough) => (
Ok(source.to_string()),
if verify_dns_length(&source, false) {
Ok(source.to_string())
} else {
Err(Errors::default())
},
),
Ok(ProcessingSuccess::WroteToSink) => {
if to_ascii_simultaneous.is_empty() {
(
Ok(to_unicode_simultaneous.clone()),
if verify_dns_length(&to_unicode_simultaneous, false) {
Ok(to_unicode_simultaneous)
} else {
Err(Errors::default())
},
)
} else {
(
Ok(to_unicode_simultaneous),
if verify_dns_length(&to_ascii_simultaneous, false) {
Ok(to_ascii_simultaneous)
} else {
Err(Errors::default())
},
)
}
}
Err(ProcessingError::ValidityError) => {
(Err(Errors::default()), Err(Errors::default()))
}
Err(ProcessingError::SinkError) => unreachable!(),
};
check(
&source,
(&to_unicode, &to_unicode_status),
to_unicode_simultaneous_result,
|e| e == "X4_2",
);
check(
&source,
(&to_ascii_n, &to_ascii_n_status),
to_ascii_simultaneous_result,
|_| false,
);
})),
)
}
}
#[allow(clippy::redundant_clone)]
fn check<F>(source: &str, expected: (&str, &[&str]), actual: Result<String, Errors>, ignore: F)
where
F: Fn(&str) -> bool,
{
if !expected.1.is_empty() {
if !expected.1.iter().copied().any(ignore) {
let res = actual.ok();
assert_eq!(
res.clone(),
None,
"Expected error {:?}. result: {} | source: {}",
expected.1,
res.unwrap(),
source,
);
}
} else {
assert!(
actual.is_ok(),
"Couldn't parse {} | error: {:?}",
source,
actual.err().unwrap(),
);
assert_eq!(actual.unwrap(), expected.0, "source: {}", source);
}
}
fn unescape(input: &str) -> String {
let mut output = String::new();
let mut chars = input.chars();
loop {
match chars.next() {
None => return output,
Some(c) => {
if c == '\\' {
match chars.next().unwrap() {
'\\' => output.push('\\'),
'u' => {
let c1 = chars.next().unwrap().to_digit(16).unwrap();
let c2 = chars.next().unwrap().to_digit(16).unwrap();
let c3 = chars.next().unwrap().to_digit(16).unwrap();
let c4 = chars.next().unwrap().to_digit(16).unwrap();
match char::from_u32(((c1 * 16 + c2) * 16 + c3) * 16 + c4) {
Some(c) => output.push(c),
None => {
write!(&mut output, "\\u{:X}{:X}{:X}{:X}", c1, c2, c3, c4)
.expect("Could not write to output");
}
};
}
_ => panic!("Invalid test data input"),
}
} else {
output.push(c);
}
}
}
}
}
fn status(status: &str) -> Vec<&str> {
if status.is_empty() || status == "[]" {
return Vec::new();
}
let mut result = status.split(", ").collect::<Vec<_>>();
assert!(result[0].starts_with('['));
result[0] = &result[0][1..];
let idx = result.len() - 1;
let last = &mut result[idx];
assert!(last.ends_with(']'));
*last = &last[..last.len() - 1];
result
}