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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:13:27 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:13:27 +0000 |
commit | 40a355a42d4a9444dc753c04c6608dade2f06a23 (patch) | |
tree | 871fc667d2de662f171103ce5ec067014ef85e61 /third_party/rust/litrs/src/integer/tests.rs | |
parent | Adding upstream version 124.0.1. (diff) | |
download | firefox-40a355a42d4a9444dc753c04c6608dade2f06a23.tar.xz firefox-40a355a42d4a9444dc753c04c6608dade2f06a23.zip |
Adding upstream version 125.0.1.upstream/125.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/rust/litrs/src/integer/tests.rs')
-rw-r--r-- | third_party/rust/litrs/src/integer/tests.rs | 357 |
1 files changed, 357 insertions, 0 deletions
diff --git a/third_party/rust/litrs/src/integer/tests.rs b/third_party/rust/litrs/src/integer/tests.rs new file mode 100644 index 0000000000..e6dad3f031 --- /dev/null +++ b/third_party/rust/litrs/src/integer/tests.rs @@ -0,0 +1,357 @@ +use std::fmt::{Debug, Display}; +use crate::{ + FromIntegerLiteral, Literal, IntegerLit, IntegerType as Ty, IntegerBase, IntegerBase::*, + test_util::{assert_parse_ok_eq, assert_roundtrip}, +}; + + +// ===== Utility functions ======================================================================= + +#[track_caller] +fn check<T: FromIntegerLiteral + PartialEq + Debug + Display>( + input: &str, + value: T, + base: IntegerBase, + main_part: &str, + type_suffix: Option<Ty>, +) { + let expected_integer = IntegerLit { + raw: input, + start_main_part: base.prefix().len(), + end_main_part: base.prefix().len() + main_part.len(), + base, + }; + assert_parse_ok_eq( + input, IntegerLit::parse(input), expected_integer.clone(), "IntegerLit::parse"); + assert_parse_ok_eq( + input, Literal::parse(input), Literal::Integer(expected_integer), "Literal::parse"); + assert_roundtrip(expected_integer.to_owned(), input); + assert_eq!(Ty::from_suffix(IntegerLit::parse(input).unwrap().suffix()), type_suffix); + + let actual_value = IntegerLit::parse(input) + .unwrap() + .value::<T>() + .unwrap_or_else(|| panic!("unexpected overflow in `IntegerLit::value` for `{}`", input)); + if actual_value != value { + panic!( + "Parsing int literal `{}` should give value `{}`, but actually resulted in `{}`", + input, + value, + actual_value, + ); + } +} + + +// ===== Actual tests =========================================================================== + +#[test] +fn parse_decimal() { + check("0", 0u128, Decimal, "0", None); + check("1", 1u8, Decimal, "1", None); + check("8", 8u16, Decimal, "8", None); + check("9", 9u32, Decimal, "9", None); + check("10", 10u64, Decimal, "10", None); + check("11", 11i8, Decimal, "11", None); + check("123456789", 123456789i128, Decimal, "123456789", None); + + check("05", 5i16, Decimal, "05", None); + check("00005", 5i32, Decimal, "00005", None); + check("0123456789", 123456789i64, Decimal, "0123456789", None); + + check("123_456_789", 123_456_789, Decimal, "123_456_789", None); + check("0___4", 4, Decimal, "0___4", None); + check("0___4_3", 43, Decimal, "0___4_3", None); + check("0___4_3", 43, Decimal, "0___4_3", None); + check("123___________", 123, Decimal, "123___________", None); + + check( + "340282366920938463463374607431768211455", + 340282366920938463463374607431768211455u128, + Decimal, + "340282366920938463463374607431768211455", + None, + ); + check( + "340_282_366_920_938_463_463_374_607_431_768_211_455", + 340282366920938463463374607431768211455u128, + Decimal, + "340_282_366_920_938_463_463_374_607_431_768_211_455", + None, + ); + check( + "3_40_282_3669_20938_463463_3746074_31768211_455___", + 340282366920938463463374607431768211455u128, + Decimal, + "3_40_282_3669_20938_463463_3746074_31768211_455___", + None, + ); +} + +#[test] +fn parse_binary() { + check("0b0", 0b0, Binary, "0", None); + check("0b000", 0b000, Binary, "000", None); + check("0b1", 0b1, Binary, "1", None); + check("0b01", 0b01, Binary, "01", None); + check("0b101010", 0b101010, Binary, "101010", None); + check("0b10_10_10", 0b10_10_10, Binary, "10_10_10", None); + check("0b01101110____", 0b01101110____, Binary, "01101110____", None); + + check("0b10010u8", 0b10010u8, Binary, "10010", Some(Ty::U8)); + check("0b10010i8", 0b10010u8, Binary, "10010", Some(Ty::I8)); + check("0b10010u64", 0b10010u64, Binary, "10010", Some(Ty::U64)); + check("0b10010i64", 0b10010i64, Binary, "10010", Some(Ty::I64)); + check( + "0b1011001_00110000_00101000_10100101u32", + 0b1011001_00110000_00101000_10100101u32, + Binary, + "1011001_00110000_00101000_10100101", + Some(Ty::U32), + ); +} + +#[test] +fn parse_octal() { + check("0o0", 0o0, Octal, "0", None); + check("0o1", 0o1, Octal, "1", None); + check("0o6", 0o6, Octal, "6", None); + check("0o7", 0o7, Octal, "7", None); + check("0o17", 0o17, Octal, "17", None); + check("0o123", 0o123, Octal, "123", None); + check("0o7654321", 0o7654321, Octal, "7654321", None); + check("0o7_53_1", 0o7_53_1, Octal, "7_53_1", None); + check("0o66_", 0o66_, Octal, "66_", None); + + check("0o755u16", 0o755u16, Octal, "755", Some(Ty::U16)); + check("0o755i128", 0o755i128, Octal, "755", Some(Ty::I128)); +} + +#[test] +fn parse_hexadecimal() { + check("0x0", 0x0, Hexadecimal, "0", None); + check("0x1", 0x1, Hexadecimal, "1", None); + check("0x9", 0x9, Hexadecimal, "9", None); + + check("0xa", 0xa, Hexadecimal, "a", None); + check("0xf", 0xf, Hexadecimal, "f", None); + check("0x17", 0x17, Hexadecimal, "17", None); + check("0x1b", 0x1b, Hexadecimal, "1b", None); + check("0x123", 0x123, Hexadecimal, "123", None); + check("0xace", 0xace, Hexadecimal, "ace", None); + check("0xfdb971", 0xfdb971, Hexadecimal, "fdb971", None); + check("0xa_54_f", 0xa_54_f, Hexadecimal, "a_54_f", None); + check("0x6d_", 0x6d_, Hexadecimal, "6d_", None); + + check("0xA", 0xA, Hexadecimal, "A", None); + check("0xF", 0xF, Hexadecimal, "F", None); + check("0x17", 0x17, Hexadecimal, "17", None); + check("0x1B", 0x1B, Hexadecimal, "1B", None); + check("0x123", 0x123, Hexadecimal, "123", None); + check("0xACE", 0xACE, Hexadecimal, "ACE", None); + check("0xFDB971", 0xFDB971, Hexadecimal, "FDB971", None); + check("0xA_54_F", 0xA_54_F, Hexadecimal, "A_54_F", None); + check("0x6D_", 0x6D_, Hexadecimal, "6D_", None); + + check("0xFdB97a1", 0xFdB97a1, Hexadecimal, "FdB97a1", None); + check("0xfdB97A1", 0xfdB97A1, Hexadecimal, "fdB97A1", None); + + check("0x40u16", 0x40u16, Hexadecimal, "40", Some(Ty::U16)); + check("0xffi128", 0xffi128, Hexadecimal, "ff", Some(Ty::I128)); +} + +#[test] +fn starting_underscore() { + check("0b_1", 1, Binary, "_1", None); + check("0b_010i16", 0b_010, Binary, "_010", Some(Ty::I16)); + + check("0o_5", 5, Octal, "_5", None); + check("0o_750u128", 0o_750u128, Octal, "_750", Some(Ty::U128)); + + check("0x_c", 0xc, Hexadecimal, "_c", None); + check("0x_cf3i8", 0x_cf3, Hexadecimal, "_cf3", Some(Ty::I8)); +} + +#[test] +fn parse_overflowing_just_fine() { + check("256u8", 256u16, Decimal, "256", Some(Ty::U8)); + check("123_456_789u8", 123_456_789u32, Decimal, "123_456_789", Some(Ty::U8)); + check("123_456_789u16", 123_456_789u32, Decimal, "123_456_789", Some(Ty::U16)); + + check("123_123_456_789u8", 123_123_456_789u64, Decimal, "123_123_456_789", Some(Ty::U8)); + check("123_123_456_789u16", 123_123_456_789u64, Decimal, "123_123_456_789", Some(Ty::U16)); + check("123_123_456_789u32", 123_123_456_789u64, Decimal, "123_123_456_789", Some(Ty::U32)); +} + +#[test] +fn suffixes() { + [ + ("123i8", Ty::I8), + ("123i16", Ty::I16), + ("123i32", Ty::I32), + ("123i64", Ty::I64), + ("123i128", Ty::I128), + ("123u8", Ty::U8), + ("123u16", Ty::U16), + ("123u32", Ty::U32), + ("123u64", Ty::U64), + ("123u128", Ty::U128), + ].iter().for_each(|&(s, ty)| { + assert_eq!(Ty::from_suffix(IntegerLit::parse(s).unwrap().suffix()), Some(ty)); + }); +} + +#[test] +fn overflow_u128() { + let inputs = [ + "340282366920938463463374607431768211456", + "0x100000000000000000000000000000000", + "0o4000000000000000000000000000000000000000000", + "0b1000000000000000000000000000000000000000000000000000000000000000000\ + 00000000000000000000000000000000000000000000000000000000000000", + "340282366920938463463374607431768211456u128", + "340282366920938463463374607431768211457", + "3_40_282_3669_20938_463463_3746074_31768211_456___", + "3_40_282_3669_20938_463463_3746074_31768211_455___1", + "3_40_282_3669_20938_463463_3746074_31768211_455___0u128", + "3402823669209384634633746074317682114570", + ]; + + for &input in &inputs { + let lit = IntegerLit::parse(input).expect("failed to parse"); + assert!(lit.value::<u128>().is_none()); + } +} + +#[test] +fn overflow_u8() { + let inputs = [ + "256", "0x100", "0o400", "0b100000000", + "257", "0x101", "0o401", "0b100000001", + "300", + "1548", + "2548985", + "256u128", + "256u8", + "2_5_6", + "256_____1", + "256__", + ]; + + for &input in &inputs { + let lit = IntegerLit::parse(input).expect("failed to parse"); + assert!(lit.value::<u8>().is_none()); + } +} + +#[test] +fn parse_err() { + assert_err!(IntegerLit, "", Empty, None); + assert_err_single!(IntegerLit::parse("a"), DoesNotStartWithDigit, 0); + assert_err_single!(IntegerLit::parse(";"), DoesNotStartWithDigit, 0); + assert_err_single!(IntegerLit::parse("0;"), UnexpectedChar, 1..2); + assert_err!(IntegerLit, "0b", NoDigits, 2..2); + assert_err_single!(IntegerLit::parse(" 0"), DoesNotStartWithDigit, 0); + assert_err_single!(IntegerLit::parse("0 "), UnexpectedChar, 1); + assert_err!(IntegerLit, "0b3", InvalidDigit, 2); + assert_err_single!(IntegerLit::parse("_"), DoesNotStartWithDigit, 0); + assert_err_single!(IntegerLit::parse("_3"), DoesNotStartWithDigit, 0); + assert_err!(IntegerLit, "0x44.5", UnexpectedChar, 4..6); + assert_err_single!(IntegerLit::parse("123em"), IntegerSuffixStartingWithE, 3); +} + +#[test] +fn invalid_digits() { + assert_err!(IntegerLit, "0b10201", InvalidDigit, 4); + assert_err!(IntegerLit, "0b9", InvalidDigit, 2); + assert_err!(IntegerLit, "0b07", InvalidDigit, 3); + + assert_err!(IntegerLit, "0o12380", InvalidDigit, 5); + assert_err!(IntegerLit, "0o192", InvalidDigit, 3); + + assert_err_single!(IntegerLit::parse("a_123"), DoesNotStartWithDigit, 0); + assert_err_single!(IntegerLit::parse("B_123"), DoesNotStartWithDigit, 0); +} + +#[test] +fn no_valid_digits() { + assert_err!(IntegerLit, "0x_", NoDigits, 2..3); + assert_err!(IntegerLit, "0x__", NoDigits, 2..4); + assert_err!(IntegerLit, "0x________", NoDigits, 2..10); + assert_err!(IntegerLit, "0x_i8", NoDigits, 2..3); + assert_err!(IntegerLit, "0x_u8", NoDigits, 2..3); + assert_err!(IntegerLit, "0x_isize", NoDigits, 2..3); + assert_err!(IntegerLit, "0x_usize", NoDigits, 2..3); + + assert_err!(IntegerLit, "0o_", NoDigits, 2..3); + assert_err!(IntegerLit, "0o__", NoDigits, 2..4); + assert_err!(IntegerLit, "0o________", NoDigits, 2..10); + assert_err!(IntegerLit, "0o_i32", NoDigits, 2..3); + assert_err!(IntegerLit, "0o_u32", NoDigits, 2..3); + + assert_err!(IntegerLit, "0b_", NoDigits, 2..3); + assert_err!(IntegerLit, "0b__", NoDigits, 2..4); + assert_err!(IntegerLit, "0b________", NoDigits, 2..10); + assert_err!(IntegerLit, "0b_i128", NoDigits, 2..3); + assert_err!(IntegerLit, "0b_u128", NoDigits, 2..3); +} + +#[test] +fn non_standard_suffixes() { + #[track_caller] + fn check_suffix<T: FromIntegerLiteral + PartialEq + Debug + Display>( + input: &str, + value: T, + base: IntegerBase, + main_part: &str, + suffix: &str, + ) { + check(input, value, base, main_part, None); + assert_eq!(IntegerLit::parse(input).unwrap().suffix(), suffix); + } + + check_suffix("5u7", 5, Decimal, "5", "u7"); + check_suffix("5u7", 5, Decimal, "5", "u7"); + check_suffix("5u9", 5, Decimal, "5", "u9"); + check_suffix("5u0", 5, Decimal, "5", "u0"); + check_suffix("33u12", 33, Decimal, "33", "u12"); + check_suffix("84u17", 84, Decimal, "84", "u17"); + check_suffix("99u80", 99, Decimal, "99", "u80"); + check_suffix("1234uu16", 1234, Decimal, "1234", "uu16"); + + check_suffix("5i7", 5, Decimal, "5", "i7"); + check_suffix("5i9", 5, Decimal, "5", "i9"); + check_suffix("5i0", 5, Decimal, "5", "i0"); + check_suffix("33i12", 33, Decimal, "33", "i12"); + check_suffix("84i17", 84, Decimal, "84", "i17"); + check_suffix("99i80", 99, Decimal, "99", "i80"); + check_suffix("1234ii16", 1234, Decimal, "1234", "ii16"); + + check_suffix("0ui32", 0, Decimal, "0", "ui32"); + check_suffix("1iu32", 1, Decimal, "1", "iu32"); + check_suffix("54321a64", 54321, Decimal, "54321", "a64"); + check_suffix("54321b64", 54321, Decimal, "54321", "b64"); + check_suffix("54321x64", 54321, Decimal, "54321", "x64"); + check_suffix("54321o64", 54321, Decimal, "54321", "o64"); + + check_suffix("0a", 0, Decimal, "0", "a"); + check_suffix("0a3", 0, Decimal, "0", "a3"); + check_suffix("0z", 0, Decimal, "0", "z"); + check_suffix("0z3", 0, Decimal, "0", "z3"); + check_suffix("0b0a", 0, Binary, "0", "a"); + check_suffix("0b0A", 0, Binary, "0", "A"); + check_suffix("0b01f", 1, Binary, "01", "f"); + check_suffix("0b01F", 1, Binary, "01", "F"); + check_suffix("0o7a_", 7, Octal, "7", "a_"); + check_suffix("0o7A_", 7, Octal, "7", "A_"); + check_suffix("0o72f_0", 0o72, Octal, "72", "f_0"); + check_suffix("0o72F_0", 0o72, Octal, "72", "F_0"); + + check_suffix("0x8cg", 0x8c, Hexadecimal, "8c", "g"); + check_suffix("0x8cG", 0x8c, Hexadecimal, "8c", "G"); + check_suffix("0x8c1h_", 0x8c1, Hexadecimal, "8c1", "h_"); + check_suffix("0x8c1H_", 0x8c1, Hexadecimal, "8c1", "H_"); + check_suffix("0x8czu16", 0x8c, Hexadecimal, "8c", "zu16"); + + check_suffix("123_foo", 123, Decimal, "123_", "foo"); +} |