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use super::*;
#[test]
fn test_unescape_char_bad() {
fn check(literal_text: &str, expected_error: EscapeError) {
let actual_result = unescape_char(literal_text).map_err(|(_offset, err)| err);
assert_eq!(actual_result, Err(expected_error));
}
check("", EscapeError::ZeroChars);
check(r"\", EscapeError::LoneSlash);
check("\n", EscapeError::EscapeOnlyChar);
check("\t", EscapeError::EscapeOnlyChar);
check("'", EscapeError::EscapeOnlyChar);
check("\r", EscapeError::BareCarriageReturn);
check("spam", EscapeError::MoreThanOneChar);
check(r"\x0ff", EscapeError::MoreThanOneChar);
check(r#"\"a"#, EscapeError::MoreThanOneChar);
check(r"\na", EscapeError::MoreThanOneChar);
check(r"\ra", EscapeError::MoreThanOneChar);
check(r"\ta", EscapeError::MoreThanOneChar);
check(r"\\a", EscapeError::MoreThanOneChar);
check(r"\'a", EscapeError::MoreThanOneChar);
check(r"\0a", EscapeError::MoreThanOneChar);
check(r"\u{0}x", EscapeError::MoreThanOneChar);
check(r"\u{1F63b}}", EscapeError::MoreThanOneChar);
check(r"\v", EscapeError::InvalidEscape);
check(r"\💩", EscapeError::InvalidEscape);
check(r"\●", EscapeError::InvalidEscape);
check("\\\r", EscapeError::InvalidEscape);
check(r"\x", EscapeError::TooShortHexEscape);
check(r"\x0", EscapeError::TooShortHexEscape);
check(r"\xf", EscapeError::TooShortHexEscape);
check(r"\xa", EscapeError::TooShortHexEscape);
check(r"\xx", EscapeError::InvalidCharInHexEscape);
check(r"\xы", EscapeError::InvalidCharInHexEscape);
check(r"\x🦀", EscapeError::InvalidCharInHexEscape);
check(r"\xtt", EscapeError::InvalidCharInHexEscape);
check(r"\xff", EscapeError::OutOfRangeHexEscape);
check(r"\xFF", EscapeError::OutOfRangeHexEscape);
check(r"\x80", EscapeError::OutOfRangeHexEscape);
check(r"\u", EscapeError::NoBraceInUnicodeEscape);
check(r"\u[0123]", EscapeError::NoBraceInUnicodeEscape);
check(r"\u{0x}", EscapeError::InvalidCharInUnicodeEscape);
check(r"\u{", EscapeError::UnclosedUnicodeEscape);
check(r"\u{0000", EscapeError::UnclosedUnicodeEscape);
check(r"\u{}", EscapeError::EmptyUnicodeEscape);
check(r"\u{_0000}", EscapeError::LeadingUnderscoreUnicodeEscape);
check(r"\u{0000000}", EscapeError::OverlongUnicodeEscape);
check(r"\u{FFFFFF}", EscapeError::OutOfRangeUnicodeEscape);
check(r"\u{ffffff}", EscapeError::OutOfRangeUnicodeEscape);
check(r"\u{ffffff}", EscapeError::OutOfRangeUnicodeEscape);
check(r"\u{DC00}", EscapeError::LoneSurrogateUnicodeEscape);
check(r"\u{DDDD}", EscapeError::LoneSurrogateUnicodeEscape);
check(r"\u{DFFF}", EscapeError::LoneSurrogateUnicodeEscape);
check(r"\u{D800}", EscapeError::LoneSurrogateUnicodeEscape);
check(r"\u{DAAA}", EscapeError::LoneSurrogateUnicodeEscape);
check(r"\u{DBFF}", EscapeError::LoneSurrogateUnicodeEscape);
}
#[test]
fn test_unescape_char_good() {
fn check(literal_text: &str, expected_char: char) {
let actual_result = unescape_char(literal_text);
assert_eq!(actual_result, Ok(expected_char));
}
check("a", 'a');
check("ы", 'ы');
check("🦀", '🦀');
check(r#"\""#, '"');
check(r"\n", '\n');
check(r"\r", '\r');
check(r"\t", '\t');
check(r"\\", '\\');
check(r"\'", '\'');
check(r"\0", '\0');
check(r"\x00", '\0');
check(r"\x5a", 'Z');
check(r"\x5A", 'Z');
check(r"\x7f", 127 as char);
check(r"\u{0}", '\0');
check(r"\u{000000}", '\0');
check(r"\u{41}", 'A');
check(r"\u{0041}", 'A');
check(r"\u{00_41}", 'A');
check(r"\u{4__1__}", 'A');
check(r"\u{1F63b}", '😻');
}
#[test]
fn test_unescape_str_warn() {
fn check(literal: &str, expected: &[(Range<usize>, Result<char, EscapeError>)]) {
let mut unescaped = Vec::with_capacity(literal.len());
unescape_literal(literal, Mode::Str, &mut |range, res| unescaped.push((range, res)));
assert_eq!(unescaped, expected);
}
// Check we can handle escaped newlines at the end of a file.
check("\\\n", &[]);
check("\\\n ", &[]);
check(
"\\\n \u{a0} x",
&[
(0..5, Err(EscapeError::UnskippedWhitespaceWarning)),
(3..5, Ok('\u{a0}')),
(5..6, Ok(' ')),
(6..7, Ok('x')),
],
);
check("\\\n \n x", &[(0..7, Err(EscapeError::MultipleSkippedLinesWarning)), (7..8, Ok('x'))]);
}
#[test]
fn test_unescape_str_good() {
fn check(literal_text: &str, expected: &str) {
let mut buf = Ok(String::with_capacity(literal_text.len()));
unescape_literal(literal_text, Mode::Str, &mut |range, c| {
if let Ok(b) = &mut buf {
match c {
Ok(c) => b.push(c),
Err(e) => buf = Err((range, e)),
}
}
});
let buf = buf.as_ref().map(|it| it.as_ref());
assert_eq!(buf, Ok(expected))
}
check("foo", "foo");
check("", "");
check(" \t\n", " \t\n");
check("hello \\\n world", "hello world");
check("thread's", "thread's")
}
#[test]
fn test_unescape_byte_bad() {
fn check(literal_text: &str, expected_error: EscapeError) {
let actual_result = unescape_byte(literal_text).map_err(|(_offset, err)| err);
assert_eq!(actual_result, Err(expected_error));
}
check("", EscapeError::ZeroChars);
check(r"\", EscapeError::LoneSlash);
check("\n", EscapeError::EscapeOnlyChar);
check("\t", EscapeError::EscapeOnlyChar);
check("'", EscapeError::EscapeOnlyChar);
check("\r", EscapeError::BareCarriageReturn);
check("spam", EscapeError::MoreThanOneChar);
check(r"\x0ff", EscapeError::MoreThanOneChar);
check(r#"\"a"#, EscapeError::MoreThanOneChar);
check(r"\na", EscapeError::MoreThanOneChar);
check(r"\ra", EscapeError::MoreThanOneChar);
check(r"\ta", EscapeError::MoreThanOneChar);
check(r"\\a", EscapeError::MoreThanOneChar);
check(r"\'a", EscapeError::MoreThanOneChar);
check(r"\0a", EscapeError::MoreThanOneChar);
check(r"\v", EscapeError::InvalidEscape);
check(r"\💩", EscapeError::InvalidEscape);
check(r"\●", EscapeError::InvalidEscape);
check(r"\x", EscapeError::TooShortHexEscape);
check(r"\x0", EscapeError::TooShortHexEscape);
check(r"\xa", EscapeError::TooShortHexEscape);
check(r"\xf", EscapeError::TooShortHexEscape);
check(r"\xx", EscapeError::InvalidCharInHexEscape);
check(r"\xы", EscapeError::InvalidCharInHexEscape);
check(r"\x🦀", EscapeError::InvalidCharInHexEscape);
check(r"\xtt", EscapeError::InvalidCharInHexEscape);
check(r"\u", EscapeError::NoBraceInUnicodeEscape);
check(r"\u[0123]", EscapeError::NoBraceInUnicodeEscape);
check(r"\u{0x}", EscapeError::InvalidCharInUnicodeEscape);
check(r"\u{", EscapeError::UnclosedUnicodeEscape);
check(r"\u{0000", EscapeError::UnclosedUnicodeEscape);
check(r"\u{}", EscapeError::EmptyUnicodeEscape);
check(r"\u{_0000}", EscapeError::LeadingUnderscoreUnicodeEscape);
check(r"\u{0000000}", EscapeError::OverlongUnicodeEscape);
check("ы", EscapeError::NonAsciiCharInByte);
check("🦀", EscapeError::NonAsciiCharInByte);
check(r"\u{0}", EscapeError::UnicodeEscapeInByte);
check(r"\u{000000}", EscapeError::UnicodeEscapeInByte);
check(r"\u{41}", EscapeError::UnicodeEscapeInByte);
check(r"\u{0041}", EscapeError::UnicodeEscapeInByte);
check(r"\u{00_41}", EscapeError::UnicodeEscapeInByte);
check(r"\u{4__1__}", EscapeError::UnicodeEscapeInByte);
check(r"\u{1F63b}", EscapeError::UnicodeEscapeInByte);
check(r"\u{0}x", EscapeError::UnicodeEscapeInByte);
check(r"\u{1F63b}}", EscapeError::UnicodeEscapeInByte);
check(r"\u{FFFFFF}", EscapeError::UnicodeEscapeInByte);
check(r"\u{ffffff}", EscapeError::UnicodeEscapeInByte);
check(r"\u{ffffff}", EscapeError::UnicodeEscapeInByte);
check(r"\u{DC00}", EscapeError::UnicodeEscapeInByte);
check(r"\u{DDDD}", EscapeError::UnicodeEscapeInByte);
check(r"\u{DFFF}", EscapeError::UnicodeEscapeInByte);
check(r"\u{D800}", EscapeError::UnicodeEscapeInByte);
check(r"\u{DAAA}", EscapeError::UnicodeEscapeInByte);
check(r"\u{DBFF}", EscapeError::UnicodeEscapeInByte);
}
#[test]
fn test_unescape_byte_good() {
fn check(literal_text: &str, expected_byte: u8) {
let actual_result = unescape_byte(literal_text);
assert_eq!(actual_result, Ok(expected_byte));
}
check("a", b'a');
check(r#"\""#, b'"');
check(r"\n", b'\n');
check(r"\r", b'\r');
check(r"\t", b'\t');
check(r"\\", b'\\');
check(r"\'", b'\'');
check(r"\0", b'\0');
check(r"\x00", b'\0');
check(r"\x5a", b'Z');
check(r"\x5A", b'Z');
check(r"\x7f", 127);
check(r"\x80", 128);
check(r"\xff", 255);
check(r"\xFF", 255);
}
#[test]
fn test_unescape_byte_str_good() {
fn check(literal_text: &str, expected: &[u8]) {
let mut buf = Ok(Vec::with_capacity(literal_text.len()));
unescape_byte_literal(literal_text, Mode::ByteStr, &mut |range, c| {
if let Ok(b) = &mut buf {
match c {
Ok(c) => b.push(c),
Err(e) => buf = Err((range, e)),
}
}
});
let buf = buf.as_ref().map(|it| it.as_ref());
assert_eq!(buf, Ok(expected))
}
check("foo", b"foo");
check("", b"");
check(" \t\n", b" \t\n");
check("hello \\\n world", b"hello world");
check("thread's", b"thread's")
}
#[test]
fn test_unescape_raw_str() {
fn check(literal: &str, expected: &[(Range<usize>, Result<char, EscapeError>)]) {
let mut unescaped = Vec::with_capacity(literal.len());
unescape_literal(literal, Mode::RawStr, &mut |range, res| unescaped.push((range, res)));
assert_eq!(unescaped, expected);
}
check("\r", &[(0..1, Err(EscapeError::BareCarriageReturnInRawString))]);
check("\rx", &[(0..1, Err(EscapeError::BareCarriageReturnInRawString)), (1..2, Ok('x'))]);
}
#[test]
fn test_unescape_raw_byte_str() {
fn check(literal: &str, expected: &[(Range<usize>, Result<u8, EscapeError>)]) {
let mut unescaped = Vec::with_capacity(literal.len());
unescape_byte_literal(literal, Mode::RawByteStr, &mut |range, res| {
unescaped.push((range, res))
});
assert_eq!(unescaped, expected);
}
check("\r", &[(0..1, Err(EscapeError::BareCarriageReturnInRawString))]);
check("🦀", &[(0..4, Err(EscapeError::NonAsciiCharInByteString))]);
check(
"🦀a",
&[(0..4, Err(EscapeError::NonAsciiCharInByteString)), (4..5, Ok(byte_from_char('a')))],
);
}
|
