diff options
Diffstat (limited to 'third_party/rust/litrs/src/byte/tests.rs')
| -rw-r--r-- | third_party/rust/litrs/src/byte/tests.rs | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/third_party/rust/litrs/src/byte/tests.rs b/third_party/rust/litrs/src/byte/tests.rs new file mode 100644 index 0000000000..3cf16b5fc2 --- /dev/null +++ b/third_party/rust/litrs/src/byte/tests.rs @@ -0,0 +1,188 @@ +use crate::{ByteLit, Literal, test_util::{assert_parse_ok_eq, assert_roundtrip}}; + +// ===== Utility functions ======================================================================= + +macro_rules! check { + ($lit:literal) => { check!($lit, stringify!($lit), "") }; + ($lit:literal, $input:expr, $suffix:literal) => { + let input = $input; + let expected = ByteLit { + raw: input, + start_suffix: input.len() - $suffix.len(), + value: $lit, + }; + + assert_parse_ok_eq(input, ByteLit::parse(input), expected.clone(), "ByteLit::parse"); + assert_parse_ok_eq(input, Literal::parse(input), Literal::Byte(expected), "Literal::parse"); + let lit = ByteLit::parse(input).unwrap(); + assert_eq!(lit.value(), $lit); + assert_eq!(lit.suffix(), $suffix); + assert_roundtrip(expected.to_owned(), input); + }; +} + + +// ===== Actual tests ============================================================================ + +#[test] +fn alphanumeric() { + check!(b'a'); + check!(b'b'); + check!(b'y'); + check!(b'z'); + check!(b'A'); + check!(b'B'); + check!(b'Y'); + check!(b'Z'); + + check!(b'0'); + check!(b'1'); + check!(b'8'); + check!(b'9'); +} + +#[test] +fn special_chars() { + check!(b' '); + check!(b'!'); + check!(b'"'); + check!(b'#'); + check!(b'$'); + check!(b'%'); + check!(b'&'); + check!(b'('); + check!(b')'); + check!(b'*'); + check!(b'+'); + check!(b','); + check!(b'-'); + check!(b'.'); + check!(b'/'); + check!(b':'); + check!(b';'); + check!(b'<'); + check!(b'='); + check!(b'>'); + check!(b'?'); + check!(b'@'); + check!(b'['); + check!(b']'); + check!(b'^'); + check!(b'_'); + check!(b'`'); + check!(b'{'); + check!(b'|'); + check!(b'}'); + check!(b'~'); +} + +#[test] +fn quote_escapes() { + check!(b'\''); + check!(b'\"'); +} + +#[test] +fn ascii_escapes() { + check!(b'\n'); + check!(b'\r'); + check!(b'\t'); + check!(b'\\'); + check!(b'\0'); + + check!(b'\x00'); + check!(b'\x01'); + check!(b'\x0c'); + check!(b'\x0D'); + check!(b'\x13'); + check!(b'\x30'); + check!(b'\x30'); + check!(b'\x4B'); + check!(b'\x6b'); + check!(b'\x7F'); + check!(b'\x7f'); +} + +#[test] +fn byte_escapes() { + check!(b'\x80'); + check!(b'\x8a'); + check!(b'\x8C'); + check!(b'\x99'); + check!(b'\xa0'); + check!(b'\xAd'); + check!(b'\xfe'); + check!(b'\xFe'); + check!(b'\xfF'); + check!(b'\xFF'); +} + +#[test] +fn suffixes() { + check!(b'a', r##"b'a'peter"##, "peter"); + check!(b'#', r##"b'#'peter"##, "peter"); + check!(b'\n', r##"b'\n'peter"##, "peter"); + check!(b'\'', r##"b'\''peter"##, "peter"); + check!(b'\"', r##"b'\"'peter"##, "peter"); + check!(b'\xFF', r##"b'\xFF'peter"##, "peter"); +} + +#[test] +fn invald_escapes() { + assert_err!(ByteLit, r"b'\a'", UnknownEscape, 2..4); + assert_err!(ByteLit, r"b'\y'", UnknownEscape, 2..4); + assert_err!(ByteLit, r"b'\", UnterminatedEscape, 2..3); + assert_err!(ByteLit, r"b'\x'", UnterminatedEscape, 2..5); + assert_err!(ByteLit, r"b'\x1'", InvalidXEscape, 2..6); + assert_err!(ByteLit, r"b'\xaj'", InvalidXEscape, 2..6); + assert_err!(ByteLit, r"b'\xjb'", InvalidXEscape, 2..6); +} + +#[test] +fn unicode_escape_not_allowed() { + assert_err!(ByteLit, r"b'\u{0}'", UnicodeEscapeInByteLiteral, 2..4); + assert_err!(ByteLit, r"b'\u{00}'", UnicodeEscapeInByteLiteral, 2..4); + assert_err!(ByteLit, r"b'\u{b}'", UnicodeEscapeInByteLiteral, 2..4); + assert_err!(ByteLit, r"b'\u{B}'", UnicodeEscapeInByteLiteral, 2..4); + assert_err!(ByteLit, r"b'\u{7e}'", UnicodeEscapeInByteLiteral, 2..4); + assert_err!(ByteLit, r"b'\u{E4}'", UnicodeEscapeInByteLiteral, 2..4); + assert_err!(ByteLit, r"b'\u{e4}'", UnicodeEscapeInByteLiteral, 2..4); + assert_err!(ByteLit, r"b'\u{fc}'", UnicodeEscapeInByteLiteral, 2..4); + assert_err!(ByteLit, r"b'\u{Fc}'", UnicodeEscapeInByteLiteral, 2..4); + assert_err!(ByteLit, r"b'\u{fC}'", UnicodeEscapeInByteLiteral, 2..4); + assert_err!(ByteLit, r"b'\u{FC}'", UnicodeEscapeInByteLiteral, 2..4); + assert_err!(ByteLit, r"b'\u{b10}'", UnicodeEscapeInByteLiteral, 2..4); + assert_err!(ByteLit, r"b'\u{B10}'", UnicodeEscapeInByteLiteral, 2..4); + assert_err!(ByteLit, r"b'\u{0b10}'", UnicodeEscapeInByteLiteral, 2..4); + assert_err!(ByteLit, r"b'\u{2764}'", UnicodeEscapeInByteLiteral, 2..4); + assert_err!(ByteLit, r"b'\u{1f602}'", UnicodeEscapeInByteLiteral, 2..4); + assert_err!(ByteLit, r"b'\u{1F602}'", UnicodeEscapeInByteLiteral, 2..4); +} + +#[test] +fn parse_err() { + assert_err!(ByteLit, r"b''", EmptyByteLiteral, None); + assert_err!(ByteLit, r"b' ''", UnexpectedChar, 4..5); + + assert_err!(ByteLit, r"b'", UnterminatedByteLiteral, None); + assert_err!(ByteLit, r"b'a", UnterminatedByteLiteral, None); + assert_err!(ByteLit, r"b'\n", UnterminatedByteLiteral, None); + assert_err!(ByteLit, r"b'\x35", UnterminatedByteLiteral, None); + + assert_err!(ByteLit, r"b'ab'", OverlongByteLiteral, None); + assert_err!(ByteLit, r"b'a _'", OverlongByteLiteral, None); + assert_err!(ByteLit, r"b'\n3'", OverlongByteLiteral, None); + + assert_err!(ByteLit, r"", Empty, None); + + assert_err!(ByteLit, r"b'''", UnescapedSingleQuote, 2); + assert_err!(ByteLit, r"b''''", UnescapedSingleQuote, 2); + + assert_err!(ByteLit, "b'\n'", UnescapedSpecialWhitespace, 2); + assert_err!(ByteLit, "b'\t'", UnescapedSpecialWhitespace, 2); + assert_err!(ByteLit, "b'\r'", UnescapedSpecialWhitespace, 2); + + assert_err!(ByteLit, "b'న'", NonAsciiInByteLiteral, 2); + assert_err!(ByteLit, "b'犬'", NonAsciiInByteLiteral, 2); + assert_err!(ByteLit, "b'🦊'", NonAsciiInByteLiteral, 2); +} |