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Avoid all-zeor attnetion mask used in testing #26469

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Sep 29, 2023
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Avoid all-zeor attnetion mask used in testing #26469

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3 changes: 2 additions & 1 deletion tests/test_modeling_common.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2960,7 +2960,8 @@ def ids_tensor(shape, vocab_size, rng=None, name=None):
def random_attention_mask(shape, rng=None, name=None):
attn_mask = ids_tensor(shape, vocab_size=2, rng=None, name=None)
# make sure that at least one token is attended to for each batch
attn_mask[:, -1] = 1
# we choose the 1st token so this property of `at least one being non-zero` still holds after applying causal mask
attn_mask[:, 0] = 1
return attn_mask


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