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Fix flaky transformers_wav2vec2 test #1996

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Fix flaky transformers_wav2vec2 test #1996

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783d03b
Revoke cpu_threads in test_transformers_wav2vec2 similar to test_tran…
3manifold Jan 29, 2026
7120640
Revert "Revoke cpu_threads in test_transformers_wav2vec2 similar to t…
3manifold Jan 29, 2026
50a74ce
Set intra_threads=1 for test_transformers_wav2vec2bert as well
3manifold Jan 29, 2026
664458a
Check for both "APOSSTEL" and "APOSSEL" in test_transformers_wav2vec2
3manifold Feb 5, 2026
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12 changes: 7 additions & 5 deletions python/tests/test_transformers.py
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Original file line number Diff line number Diff line change
Expand Up @@ -977,13 +977,15 @@ def teardown_class(cls):
@test_utils.only_on_linux
@test_utils.on_available_devices
@pytest.mark.parametrize(
"model_name,expected_transcription",
"model_name,expected_transcriptions",
[
(
"facebook/wav2vec2-large-robust-ft-swbd-300h",
[
"MISTER QUILTER IS THE APOSSEL OF THE MIDDLE CLASSES AND"
" WE ARE GLAD TO WELCOME HIS GOSPEL",
"MISTER QUILTER IS THE APOSSTEL OF THE MIDDLE CLASSES AND"
" WE ARE GLAD TO WELCOME HIS GOSPEL",
],
),
],
Expand All @@ -993,7 +995,7 @@ def test_transformers_wav2vec2(
tmp_dir,
device,
model_name,
expected_transcription,
expected_transcriptions,
):
import torch
import transformers
Expand Down Expand Up @@ -1046,7 +1048,7 @@ def test_transformers_wav2vec2(
transcription = processor.decode(predicted_ids, output_word_offsets=True)
transcription = transcription[0].replace(processor.tokenizer.unk_token, "")

assert transcription == expected_transcription[0]
assert transcription in expected_transcriptions


class TestWav2Vec2Bert:
Expand Down Expand Up @@ -1091,13 +1093,13 @@ def test_transformers_wav2vec2bert(
)

device = "cuda" if os.environ.get("CUDA_VISIBLE_DEVICES") else "cpu"
cpu_threads = int(os.environ.get("OMP_NUM_THREADS", 0))
# cpu_threads = int(os.environ.get("OMP_NUM_THREADS", 0))
model = ctranslate2.models.Wav2Vec2Bert(
output_dir,
device=device,
device_index=[0],
compute_type="int8",
intra_threads=cpu_threads,
intra_threads=1,
inter_threads=1,
)

Expand Down