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test(fonts): deduplicate validation cases after main rebase

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ldm0
2026-10-11 18:06:47 +08:00
parent 860240717d
commit b4bfd5679d
1 changed files with 0 additions and 52 deletions
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moli-layout/src/text.rs
-52
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@@ -995,58 +995,6 @@ mod tests {
const TEST_WOFF: &[u8] = include_bytes!("../tests/fixtures/moli-ahem.woff");
const TEST_WOFF2: &[u8] = include_bytes!("../tests/fixtures/moli-ahem.woff2");
fn validate_test_font_bytes(bytes: &[u8]) -> Result<(), WebFontRegistrationError> {
validate_registered_font(&WebFontFace::new("FontFace"), decode_web_font_bytes(bytes)?)
}
#[test]
fn font_validation_checks_decoding_and_every_table_extent() {
for bytes in [TEST_TTF, TEST_WOFF, TEST_WOFF2] {
assert!(validate_test_font_bytes(bytes).is_ok());
for size in [0, 4, 12, 44, bytes.len() - 10] {
assert!(
validate_test_font_bytes(&bytes[..size]).is_err(),
"length {size}"
);
}
}
// Corrupt a table offset and length independently, including values
// whose sum would overflow u32. Metadata-only registration must not
// make an out-of-bounds table acceptable.
for field in [20, 24] {
let mut bytes = TEST_TTF.to_vec();
bytes[field..field + 4].copy_from_slice(&u32::MAX.to_be_bytes());
assert!(validate_test_font_bytes(&bytes).is_err());
}
}
#[test]
fn font_validation_checks_all_faces_in_a_collection() {
let mut collection = b"ttcf\0\x01\0\0\0\0\0\x02\0\0\0\0\0\0\0\0".to_vec();
for index in 0..2 {
let offset = collection.len() as u32;
collection[12 + index * 4..16 + index * 4].copy_from_slice(&offset.to_be_bytes());
let mut font = TEST_TTF.to_vec();
let count = u16::from_be_bytes([font[4], font[5]]) as usize;
for table in 0..count {
let start = 20 + table * 16;
let relative = u32::from_be_bytes(font[start..start + 4].try_into().unwrap());
font[start..start + 4].copy_from_slice(&(relative + offset).to_be_bytes());
}
collection.extend(font);
}
assert!(validate_test_font_bytes(&collection).is_ok());
for index in 0..2 {
let mut corrupt = collection.clone();
let offset =
u32::from_be_bytes(corrupt[12 + index * 4..16 + index * 4].try_into().unwrap())
as usize;
corrupt[offset + 20..offset + 24].copy_from_slice(&u32::MAX.to_be_bytes());
assert!(validate_test_font_bytes(&corrupt).is_err());
}
}
#[test]
fn font_validation_checks_decoding_and_every_table_extent() {
for bytes in [TEST_TTF, TEST_WOFF, TEST_WOFF2] {