mod test_utils;
use rust_tokenizers::tokenizer::{
FNetTokenizer, MultiThreadedTokenizer, Tokenizer, TruncationStrategy,
};
use rust_tokenizers::{Offset, TokenizedInput};
use test_utils::download_file_to_cache;
#[test]
fn test_fnet_tokenization() -> anyhow::Result<()> {
let vocab_path = download_file_to_cache(
"https://huggingface.co/google/fnet-base/resolve/main/spiece.model",
)?;
let fnet_tokenizer = FNetTokenizer::from_file(vocab_path, false, false)?;
let original_strings = [
"…",
"This is a sample sentence to be tokénized",
"Wondering how this will get tokenized 🤔 ?",
"İs th!s 𩸽 Ϻ Šœ Ugljšić dấu nặng",
" İs th!s 𩸽 Ϻ Šœ Ugljšić dấu nặng ",
" � İs th!s �� 𩸽 Ϻ Šœ Ugljšić dấu nặng ",
];
let expected_results = [
TokenizedInput {
token_ids: vec![4, 2635, 5],
segment_ids: vec![],
special_tokens_mask: vec![],
overflowing_tokens: vec![],
num_truncated_tokens: 0,
token_offsets: vec![None, Some(Offset { begin: 0, end: 1 }), None],
reference_offsets: vec![],
mask: vec![],
},
TokenizedInput {
token_ids: vec![
4, 325, 65, 8, 5250, 9423, 33, 67, 33, 16681, 16747, 16663, 873, 5,
],
segment_ids: vec![],
special_tokens_mask: vec![],
overflowing_tokens: vec![],
num_truncated_tokens: 0,
token_offsets: vec![
None,
Some(Offset { begin: 0, end: 4 }),
Some(Offset { begin: 4, end: 7 }),
Some(Offset { begin: 7, end: 9 }),
Some(Offset { begin: 9, end: 16 }),
Some(Offset { begin: 16, end: 25 }),
Some(Offset { begin: 25, end: 28 }),
Some(Offset { begin: 28, end: 31 }),
Some(Offset { begin: 31, end: 34 }),
Some(Offset { begin: 34, end: 35 }),
Some(Offset { begin: 35, end: 36 }),
Some(Offset { begin: 37, end: 38 }),
Some(Offset { begin: 38, end: 42 }),
None,
],
reference_offsets: vec![],
mask: vec![],
},
TokenizedInput {
token_ids: vec![
4, 100, 368, 931, 409, 168, 184, 341, 16391, 873, 16657, 20067, 3388, 5,
],
segment_ids: vec![],
special_tokens_mask: vec![],
overflowing_tokens: vec![],
num_truncated_tokens: 0,
token_offsets: vec![
None,
Some(Offset { begin: 0, end: 1 }),
Some(Offset { begin: 1, end: 4 }),
Some(Offset { begin: 4, end: 9 }),
Some(Offset { begin: 9, end: 13 }),
Some(Offset { begin: 13, end: 18 }),
Some(Offset { begin: 18, end: 23 }),
Some(Offset { begin: 23, end: 27 }),
Some(Offset { begin: 27, end: 33 }),
Some(Offset { begin: 33, end: 37 }),
Some(Offset { begin: 37, end: 38 }),
Some(Offset { begin: 38, end: 39 }),
Some(Offset { begin: 39, end: 41 }),
None,
],
reference_offsets: vec![],
mask: vec![],
},
TokenizedInput {
token_ids: vec![
4, 16657, 17152, 16664, 47, 16718, 16664, 16657, 0, 16657, 27026, 16657, 17077,
16987, 252, 5430, 16705, 16878, 16662, 16924, 40, 18139, 16670, 59, 19421, 806, 5,
],
segment_ids: vec![],
special_tokens_mask: vec![],
overflowing_tokens: vec![],
num_truncated_tokens: 0,
token_offsets: vec![
None,
Some(Offset { begin: 0, end: 1 }),
Some(Offset { begin: 0, end: 1 }),
Some(Offset { begin: 1, end: 2 }),
Some(Offset { begin: 2, end: 5 }),
Some(Offset { begin: 5, end: 6 }),
Some(Offset { begin: 6, end: 7 }),
Some(Offset { begin: 7, end: 8 }),
Some(Offset { begin: 8, end: 9 }),
Some(Offset { begin: 9, end: 10 }),
Some(Offset { begin: 10, end: 11 }),
Some(Offset { begin: 11, end: 12 }),
Some(Offset { begin: 12, end: 13 }),
Some(Offset { begin: 13, end: 14 }),
Some(Offset { begin: 14, end: 16 }),
Some(Offset { begin: 16, end: 18 }),
Some(Offset { begin: 18, end: 19 }),
Some(Offset { begin: 19, end: 20 }),
Some(Offset { begin: 20, end: 21 }),
Some(Offset { begin: 21, end: 22 }),
Some(Offset { begin: 22, end: 24 }),
Some(Offset { begin: 24, end: 25 }),
Some(Offset { begin: 25, end: 26 }),
Some(Offset { begin: 26, end: 28 }),
Some(Offset { begin: 28, end: 29 }),
Some(Offset { begin: 29, end: 31 }),
None,
],
reference_offsets: vec![],
mask: vec![],
},
TokenizedInput {
token_ids: vec![
4, 16657, 16657, 16657, 17152, 16664, 47, 16718, 16664, 16657, 16657, 16657, 16657,
0, 16657, 27026, 16657, 17077, 16987, 16657, 16657, 252, 5430, 16705, 16878, 16662,
16924, 16657, 40, 18139, 16670, 59, 19421, 806, 16657, 16657, 16657, 16657, 16657,
5,
],
segment_ids: vec![],
special_tokens_mask: vec![],
overflowing_tokens: vec![],
num_truncated_tokens: 0,
token_offsets: vec![
None,
Some(Offset { begin: 0, end: 1 }),
Some(Offset { begin: 1, end: 2 }),
Some(Offset { begin: 2, end: 3 }),
Some(Offset { begin: 3, end: 4 }),
Some(Offset { begin: 4, end: 5 }),
Some(Offset { begin: 5, end: 8 }),
Some(Offset { begin: 8, end: 9 }),
Some(Offset { begin: 9, end: 10 }),
Some(Offset { begin: 10, end: 11 }),
Some(Offset { begin: 11, end: 12 }),
Some(Offset { begin: 12, end: 13 }),
Some(Offset { begin: 13, end: 14 }),
Some(Offset { begin: 14, end: 15 }),
Some(Offset { begin: 15, end: 16 }),
Some(Offset { begin: 16, end: 17 }),
Some(Offset { begin: 17, end: 18 }),
Some(Offset { begin: 18, end: 19 }),
Some(Offset { begin: 19, end: 20 }),
Some(Offset { begin: 20, end: 21 }),
Some(Offset { begin: 21, end: 22 }),
Some(Offset { begin: 22, end: 24 }),
Some(Offset { begin: 24, end: 26 }),
Some(Offset { begin: 26, end: 27 }),
Some(Offset { begin: 27, end: 28 }),
Some(Offset { begin: 28, end: 29 }),
Some(Offset { begin: 29, end: 30 }),
Some(Offset { begin: 30, end: 31 }),
Some(Offset { begin: 31, end: 33 }),
Some(Offset { begin: 33, end: 34 }),
Some(Offset { begin: 34, end: 35 }),
Some(Offset { begin: 35, end: 37 }),
Some(Offset { begin: 37, end: 38 }),
Some(Offset { begin: 38, end: 40 }),
Some(Offset { begin: 40, end: 41 }),
Some(Offset { begin: 41, end: 42 }),
Some(Offset { begin: 42, end: 43 }),
Some(Offset { begin: 43, end: 44 }),
Some(Offset { begin: 44, end: 45 }),
None,
],
reference_offsets: vec![],
mask: vec![],
},
TokenizedInput {
token_ids: vec![
4, 16657, 16657, 17152, 16664, 47, 16718, 16664, 16657, 16657, 0, 16657, 27026,
16657, 17077, 16987, 16657, 16657, 252, 5430, 16705, 16878, 16662, 16924, 16657,
40, 18139, 16670, 59, 19421, 806, 16657, 16657, 16657, 16657, 16657, 5,
],
segment_ids: vec![],
special_tokens_mask: vec![],
overflowing_tokens: vec![],
num_truncated_tokens: 0,
token_offsets: vec![
None,
Some(Offset { begin: 0, end: 1 }),
Some(Offset { begin: 2, end: 3 }),
Some(Offset { begin: 3, end: 4 }),
Some(Offset { begin: 4, end: 5 }),
Some(Offset { begin: 5, end: 8 }),
Some(Offset { begin: 8, end: 9 }),
Some(Offset { begin: 9, end: 10 }),
Some(Offset { begin: 10, end: 11 }),
Some(Offset { begin: 13, end: 14 }),
Some(Offset { begin: 14, end: 15 }),
Some(Offset { begin: 15, end: 16 }),
Some(Offset { begin: 16, end: 17 }),
Some(Offset { begin: 17, end: 18 }),
Some(Offset { begin: 18, end: 19 }),
Some(Offset { begin: 19, end: 20 }),
Some(Offset { begin: 20, end: 21 }),
Some(Offset { begin: 21, end: 22 }),
Some(Offset { begin: 22, end: 24 }),
Some(Offset { begin: 24, end: 26 }),
Some(Offset { begin: 26, end: 27 }),
Some(Offset { begin: 27, end: 28 }),
Some(Offset { begin: 28, end: 29 }),
Some(Offset { begin: 29, end: 30 }),
Some(Offset { begin: 30, end: 31 }),
Some(Offset { begin: 31, end: 33 }),
Some(Offset { begin: 33, end: 34 }),
Some(Offset { begin: 34, end: 35 }),
Some(Offset { begin: 35, end: 37 }),
Some(Offset { begin: 37, end: 38 }),
Some(Offset { begin: 38, end: 40 }),
Some(Offset { begin: 40, end: 41 }),
Some(Offset { begin: 41, end: 42 }),
Some(Offset { begin: 42, end: 43 }),
Some(Offset { begin: 43, end: 44 }),
Some(Offset { begin: 44, end: 45 }),
None,
],
reference_offsets: vec![],
mask: vec![],
},
]
.to_vec();
let output = MultiThreadedTokenizer::encode_list(
&fnet_tokenizer,
&original_strings,
128,
&TruncationStrategy::LongestFirst,
0,
);
for (_idx, (predicted, expected)) in output.iter().zip(expected_results.iter()).enumerate() {
let original_sentence_chars: Vec<char> = original_strings[_idx].chars().collect();
for (idx, offset) in predicted.token_offsets.iter().enumerate() {
match offset {
Some(offset) => {
let (start_char, end_char) = (offset.begin as usize, offset.end as usize);
let text: String = original_sentence_chars[start_char..end_char]
.iter()
.collect();
println!(
"{:<2?} | {:<10} | {:<10} | {:<10?}",
offset,
text,
fnet_tokenizer.decode(&[predicted.token_ids[idx]], false, false),
predicted.mask[idx]
)
}
None => continue,
}
}
assert_eq!(predicted.token_ids, expected.token_ids);
assert_eq!(predicted.token_offsets, expected.token_offsets);
}
Ok(())
}