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-rw-r--r--third_party/rust/litrs/src/char/tests.rs227
1 files changed, 227 insertions, 0 deletions
diff --git a/third_party/rust/litrs/src/char/tests.rs b/third_party/rust/litrs/src/char/tests.rs
new file mode 100644
index 0000000000..19219db73b
--- /dev/null
+++ b/third_party/rust/litrs/src/char/tests.rs
@@ -0,0 +1,227 @@
+use crate::{Literal, test_util::{assert_parse_ok_eq, assert_roundtrip}};
+use super::CharLit;
+
+// ===== Utility functions =======================================================================
+
+macro_rules! check {
+ ($lit:literal) => { check!($lit, stringify!($lit), "") };
+ ($lit:literal, $input:expr, $suffix:literal) => {
+ let input = $input;
+ let expected = CharLit {
+ raw: input,
+ start_suffix: input.len() - $suffix.len(),
+ value: $lit,
+ };
+
+ assert_parse_ok_eq(input, CharLit::parse(input), expected.clone(), "CharLit::parse");
+ assert_parse_ok_eq(input, Literal::parse(input), Literal::Char(expected), "Literal::parse");
+ let lit = CharLit::parse(input).unwrap();
+ assert_eq!(lit.value(), $lit);
+ assert_eq!(lit.suffix(), $suffix);
+ assert_roundtrip(expected.to_owned(), input);
+ };
+}
+
+
+// ===== Actual tests ============================================================================
+
+#[test]
+fn alphanumeric() {
+ check!('a');
+ check!('b');
+ check!('y');
+ check!('z');
+ check!('A');
+ check!('B');
+ check!('Y');
+ check!('Z');
+
+ check!('0');
+ check!('1');
+ check!('8');
+ check!('9');
+}
+
+#[test]
+fn special_chars() {
+ check!(' ');
+ check!('!');
+ check!('"');
+ check!('#');
+ check!('$');
+ check!('%');
+ check!('&');
+ check!('(');
+ check!(')');
+ check!('*');
+ check!('+');
+ check!(',');
+ check!('-');
+ check!('.');
+ check!('/');
+ check!(':');
+ check!(';');
+ check!('<');
+ check!('=');
+ check!('>');
+ check!('?');
+ check!('@');
+ check!('[');
+ check!(']');
+ check!('^');
+ check!('_');
+ check!('`');
+ check!('{');
+ check!('|');
+ check!('}');
+ check!('~');
+}
+
+#[test]
+fn unicode() {
+ check!('న');
+ check!('犬');
+ check!('🦊');
+}
+
+#[test]
+fn quote_escapes() {
+ check!('\'');
+ check!('\"');
+}
+
+#[test]
+fn ascii_escapes() {
+ check!('\n');
+ check!('\r');
+ check!('\t');
+ check!('\\');
+ check!('\0');
+
+ check!('\x00');
+ check!('\x01');
+ check!('\x0c');
+ check!('\x0D');
+ check!('\x13');
+ check!('\x30');
+ check!('\x30');
+ check!('\x4B');
+ check!('\x6b');
+ check!('\x7F');
+ check!('\x7f');
+}
+
+#[test]
+fn unicode_escapes() {
+ check!('\u{0}');
+ check!('\u{00}');
+ check!('\u{b}');
+ check!('\u{B}');
+ check!('\u{7e}');
+ check!('\u{E4}');
+ check!('\u{e4}');
+ check!('\u{fc}');
+ check!('\u{Fc}');
+ check!('\u{fC}');
+ check!('\u{FC}');
+ check!('\u{b10}');
+ check!('\u{B10}');
+ check!('\u{0b10}');
+ check!('\u{2764}');
+ check!('\u{1f602}');
+ check!('\u{1F602}');
+
+ check!('\u{0}');
+ check!('\u{0__}');
+ check!('\u{3_b}');
+ check!('\u{1_F_6_0_2}');
+ check!('\u{1_F6_02_____}');
+}
+
+#[test]
+fn suffixes() {
+ check!('a', r##"'a'peter"##, "peter");
+ check!('#', r##"'#'peter"##, "peter");
+ check!('\n', r##"'\n'peter"##, "peter");
+ check!('\'', r##"'\''peter"##, "peter");
+ check!('\"', r##"'\"'peter"##, "peter");
+}
+
+#[test]
+fn invald_ascii_escapes() {
+ assert_err!(CharLit, r"'\x80'", NonAsciiXEscape, 1..5);
+ assert_err!(CharLit, r"'\x81'", NonAsciiXEscape, 1..5);
+ assert_err!(CharLit, r"'\x8a'", NonAsciiXEscape, 1..5);
+ assert_err!(CharLit, r"'\x8F'", NonAsciiXEscape, 1..5);
+ assert_err!(CharLit, r"'\xa0'", NonAsciiXEscape, 1..5);
+ assert_err!(CharLit, r"'\xB0'", NonAsciiXEscape, 1..5);
+ assert_err!(CharLit, r"'\xc3'", NonAsciiXEscape, 1..5);
+ assert_err!(CharLit, r"'\xDf'", NonAsciiXEscape, 1..5);
+ assert_err!(CharLit, r"'\xff'", NonAsciiXEscape, 1..5);
+ assert_err!(CharLit, r"'\xfF'", NonAsciiXEscape, 1..5);
+ assert_err!(CharLit, r"'\xFf'", NonAsciiXEscape, 1..5);
+ assert_err!(CharLit, r"'\xFF'", NonAsciiXEscape, 1..5);
+}
+
+#[test]
+fn invalid_escapes() {
+ assert_err!(CharLit, r"'\a'", UnknownEscape, 1..3);
+ assert_err!(CharLit, r"'\y'", UnknownEscape, 1..3);
+ assert_err!(CharLit, r"'\", UnterminatedEscape, 1);
+ assert_err!(CharLit, r"'\x'", UnterminatedEscape, 1..4);
+ assert_err!(CharLit, r"'\x1'", InvalidXEscape, 1..5);
+ assert_err!(CharLit, r"'\xaj'", InvalidXEscape, 1..5);
+ assert_err!(CharLit, r"'\xjb'", InvalidXEscape, 1..5);
+}
+
+#[test]
+fn invalid_unicode_escapes() {
+ assert_err!(CharLit, r"'\u'", UnicodeEscapeWithoutBrace, 1..3);
+ assert_err!(CharLit, r"'\u '", UnicodeEscapeWithoutBrace, 1..3);
+ assert_err!(CharLit, r"'\u3'", UnicodeEscapeWithoutBrace, 1..3);
+
+ assert_err!(CharLit, r"'\u{'", UnterminatedUnicodeEscape, 1..5);
+ assert_err!(CharLit, r"'\u{12'", UnterminatedUnicodeEscape, 1..7);
+ assert_err!(CharLit, r"'\u{a0b'", UnterminatedUnicodeEscape, 1..8);
+ assert_err!(CharLit, r"'\u{a0_b '", UnterminatedUnicodeEscape, 1..11);
+
+ assert_err!(CharLit, r"'\u{_}'", InvalidStartOfUnicodeEscape, 4);
+ assert_err!(CharLit, r"'\u{_5f}'", InvalidStartOfUnicodeEscape, 4);
+
+ assert_err!(CharLit, r"'\u{x}'", NonHexDigitInUnicodeEscape, 4);
+ assert_err!(CharLit, r"'\u{0x}'", NonHexDigitInUnicodeEscape, 5);
+ assert_err!(CharLit, r"'\u{3bx}'", NonHexDigitInUnicodeEscape, 6);
+ assert_err!(CharLit, r"'\u{3b_x}'", NonHexDigitInUnicodeEscape, 7);
+ assert_err!(CharLit, r"'\u{4x_}'", NonHexDigitInUnicodeEscape, 5);
+
+ assert_err!(CharLit, r"'\u{1234567}'", TooManyDigitInUnicodeEscape, 10);
+ assert_err!(CharLit, r"'\u{1234567}'", TooManyDigitInUnicodeEscape, 10);
+ assert_err!(CharLit, r"'\u{1_23_4_56_7}'", TooManyDigitInUnicodeEscape, 14);
+ assert_err!(CharLit, r"'\u{abcdef123}'", TooManyDigitInUnicodeEscape, 10);
+
+ assert_err!(CharLit, r"'\u{110000}'", InvalidUnicodeEscapeChar, 1..10);
+}
+
+#[test]
+fn parse_err() {
+ assert_err!(CharLit, r"''", EmptyCharLiteral, None);
+ assert_err!(CharLit, r"' ''", UnexpectedChar, 3);
+
+ assert_err!(CharLit, r"'", UnterminatedCharLiteral, None);
+ assert_err!(CharLit, r"'a", UnterminatedCharLiteral, None);
+ assert_err!(CharLit, r"'\n", UnterminatedCharLiteral, None);
+ assert_err!(CharLit, r"'\x35", UnterminatedCharLiteral, None);
+
+ assert_err!(CharLit, r"'ab'", OverlongCharLiteral, None);
+ assert_err!(CharLit, r"'a _'", OverlongCharLiteral, None);
+ assert_err!(CharLit, r"'\n3'", OverlongCharLiteral, None);
+
+ assert_err!(CharLit, r"", Empty, None);
+
+ assert_err!(CharLit, r"'''", UnescapedSingleQuote, 1);
+ assert_err!(CharLit, r"''''", UnescapedSingleQuote, 1);
+
+ assert_err!(CharLit, "'\n'", UnescapedSpecialWhitespace, 1);
+ assert_err!(CharLit, "'\t'", UnescapedSpecialWhitespace, 1);
+ assert_err!(CharLit, "'\r'", UnescapedSpecialWhitespace, 1);
+}
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