69 lines
2.2 KiB
Python
69 lines
2.2 KiB
Python
import torch
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from text_generation_server.utils.tokens import (
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StopSequenceCriteria,
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StoppingCriteria,
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FinishReason,
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batch_top_tokens,
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)
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def test_stop_sequence_criteria():
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criteria = StopSequenceCriteria("/test;")
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assert not criteria("/")
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assert not criteria("/test")
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assert criteria("/test;")
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assert not criteria("/test; ")
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def test_stop_sequence_criteria_escape():
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criteria = StopSequenceCriteria("<|stop|>")
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assert not criteria("<")
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assert not criteria("<|stop")
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assert criteria("<|stop|>")
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assert not criteria("<|stop|> ")
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def test_stopping_criteria():
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criteria = StoppingCriteria(0, [StopSequenceCriteria("/test;")], max_new_tokens=5)
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assert criteria(65827, "/test") == (False, None)
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assert criteria(30, ";") == (True, FinishReason.FINISH_REASON_STOP_SEQUENCE)
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def test_stopping_criteria_eos():
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criteria = StoppingCriteria(0, [StopSequenceCriteria("/test;")], max_new_tokens=5)
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assert criteria(1, "") == (False, None)
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assert criteria(0, "") == (True, FinishReason.FINISH_REASON_EOS_TOKEN)
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def test_stopping_criteria_max():
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criteria = StoppingCriteria(0, [StopSequenceCriteria("/test;")], max_new_tokens=5)
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assert criteria(1, "") == (False, None)
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assert criteria(1, "") == (False, None)
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assert criteria(1, "") == (False, None)
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assert criteria(1, "") == (False, None)
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assert criteria(1, "") == (True, FinishReason.FINISH_REASON_LENGTH)
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def test_batch_top_tokens():
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top_n_tokens = [0, 2, 3, 4, 5]
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top_n_tokens_tensor = torch.tensor(top_n_tokens)
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inp_logprobs = torch.tensor([[-1.0, -3.0, -4.0, -2.0, -3.0]] * 5)
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topn_tok_ids, topn_tok_logprobs = batch_top_tokens(
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top_n_tokens, top_n_tokens_tensor, inp_logprobs
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)
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assert topn_tok_ids[0] == []
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assert topn_tok_ids[1] == [0, 3]
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assert topn_tok_ids[2] == [0, 3, 1, 4]
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assert topn_tok_ids[3] == [0, 3, 1, 4]
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assert topn_tok_ids[4] == [0, 3, 1, 4, 2]
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assert topn_tok_logprobs[0] == []
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assert topn_tok_logprobs[1] == [-1, -2]
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assert topn_tok_logprobs[2] == [-1, -2, -3, -3]
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assert topn_tok_logprobs[3] == [-1, -2, -3, -3]
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assert topn_tok_logprobs[4] == [-1, -2, -3, -3, -4]
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