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Add test code for unescaping byte strings

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This commit is contained in:
Noritada Kobayashi 2022-11-07 23:39:02 +09:00
parent bdf8547013
commit 2340d7059e
1 changed files with 25 additions and 0 deletions
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25
crates/syntax/src/ast/token_ext.rs
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@ -456,6 +456,31 @@ bcde", "abcde",
);
}
fn check_byte_string_value<'a, const N: usize>(
lit: &str,
expected: impl Into<Option<&'a [u8; N]>>,
) {
assert_eq!(
ast::ByteString { syntax: make::tokens::literal(&format!("b\"{}\"", lit)) }
.value()
.as_deref(),
expected.into().map(|value| &value[..])
);
}
#[test]
fn test_byte_string_escape() {
check_byte_string_value(r"foobar", b"foobar");
check_byte_string_value(r"\foobar", None::<&[u8; 0]>);
check_byte_string_value(r"\nfoobar", b"\nfoobar");
check_byte_string_value(r"C:\\Windows\\System32\\", b"C:\\Windows\\System32\\");
check_byte_string_value(r"\x61bcde", b"abcde");
check_byte_string_value(
r"a\
bcde", b"abcde",
);
}
#[test]
fn test_value_underscores() {
check_float_value("3.141592653589793_f64", 3.141592653589793_f64);