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fix(parser): fix tests for number parsing #4254

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Jul 15, 2024
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fix(parser): fix tests for number parsing #4254

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40 changes: 18 additions & 22 deletions crates/oxc_parser/src/lexer/number.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -270,6 +270,10 @@ mod test {
}
}

// binary
static_assertions::const_assert_eq!(binary_byte_to_value(b'0'), 0);
static_assertions::const_assert_eq!(binary_byte_to_value(b'1'), 1);

// octal
static_assertions::const_assert_eq!(octal_byte_to_value(b'0'), 0);
static_assertions::const_assert_eq!(octal_byte_to_value(b'7'), 7);
Expand All @@ -282,29 +286,32 @@ mod test {
static_assertions::const_assert_eq!(hex_byte_to_value(b'a'), 10);
static_assertions::const_assert_eq!(hex_byte_to_value(b'f'), 15);

// binary
static_assertions::const_assert_eq!(binary_byte_to_value(b'0'), 0);
static_assertions::const_assert_eq!(binary_byte_to_value(b'1'), 1);

#[test]
#[allow(clippy::excessive_precision, clippy::cast_precision_loss)]
fn test_int_precision() {
assert_eq!(parse_int("9007199254740991", Kind::Decimal, false), Ok(9007199254740991.0));
assert_eq!(
// 18446744073709551616 = 1 << 64
parse_int("18446744073709551616", Kind::Decimal, false),
Ok(18446744073709551616_i128 as f64)
);
assert_eq!(
// 0x10000000000000000 = 1 << 64
parse_int("0x10000000000000000", Kind::Hex, false),
Ok(0x10000000000000000_i128 as f64)
);
assert_eq!(
parse_int("0o40000000000000000", Kind::Octal, false),
Ok(0o40000000000000000_i128 as f64)
// 0o2000000000000000000000 = 1 << 64
parse_int("0o2000000000000000000000", Kind::Octal, false),
Ok(0o2000000000000000000000_i128 as f64)
);
assert_eq!(
// 0b10000000000000000000000000000000000000000000000000000000000000000 = 1 << 64
parse_int(
"0b00010000000000000000000000000000000000000000000000000000000000000000",
"0b10000000000000000000000000000000000000000000000000000000000000000",
Kind::Binary,
false
),
Ok(0b00010000000000000000000000000000000000000000000000000000000000000000_i128 as f64)
Ok(0b10000000000000000000000000000000000000000000000000000000000000000_i128 as f64)
);
}

Expand Down Expand Up @@ -333,13 +340,9 @@ mod test {
let decimal: Vec<(&str, i64)> = vec![
// normal
("0", 0),
("-0", 0),
("1", 1),
("-1", -1),
("000000000000", 0),
("-000000000000", 0),
("9007199254740991", 9007199254740991), // max safe integer, 2^53 - 1
("-9007199254740990", -9007199254740990), // min safe integer, -(2^53 - 1)
];
let binary = vec![
("0b0", 0b0),
Expand Down Expand Up @@ -369,15 +372,10 @@ mod test {
let decimal: Vec<(&str, i64)> = vec![
// still works without separators
("0", 0),
("-0", 0),
("1", 1),
("-1", -1),
("1_000_000", 1_000_000),
("-1_000_000", -1_000_000),
("000000000000", 0),
("-000000000000", 0),
("9_007_199_254_740_991", 9_007_199_254_740_991), // max safe integer, 2^53 - 1
("-9_007_199_254_740_990", -9_007_199_254_740_990), // min safe integer, -(2^53 - 1)
// still works for illegal tokens
("1___000_000", 1_000_000),
("1_", 1),
Expand Down Expand Up @@ -445,20 +443,18 @@ mod test {
("0.5_", 0.5),
];

// parse_int() handles Kind::Decimal as a float. Should we check if
// a '.' is encountered during lexing and pick which parser to use?
assert_all_floats_eq(no_sep.clone(), false);
assert_all_floats_eq(sep.clone(), true);
for (s, expected) in no_sep {
let parsed = parse_int(s, Kind::Decimal, false);
let parsed = parse_float(s, false);
assert_eq!(
parsed,
Ok(expected),
"expected {s} to parse to {expected}, but got {parsed:?}"
);
}
for (s, expected) in sep {
let parsed = parse_int(s, Kind::Decimal, true);
let parsed = parse_float(s, true);
assert_eq!(
parsed,
Ok(expected),
Expand Down
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