spaCy/spacy/tests/regression/test_issue3447.py

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# coding: utf8
from __future__ import unicode_literals
from spacy.util import decaying
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def test_issue3447():
sizes = decaying(10.0, 1.0, 0.5)
size = next(sizes)
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assert size == 10.0
size = next(sizes)
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assert size == 10.0 - 0.5
size = next(sizes)
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assert size == 10.0 - 0.5 - 0.5