27 lines
763 B
Python
27 lines
763 B
Python
from funcy import compose, lmapcat
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from pyinfra.utils.buffer import bufferize
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def test_buffer():
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def buffer_mean(xs):
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return [sum(xs) / len(xs)] if xs else []
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buffer_mean = bufferize(compose(buffer_mean, list), buffer_size=3)
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ys = lmapcat(buffer_mean, range(20))
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assert list(ys) == [1.0, 4.0, 7.0, 10.0, 13.0, 16.0]
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def reverse_buffer(xs):
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return reversed(xs)
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reverse_buffer = bufferize(compose(reverse_buffer, list), buffer_size=3)
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ys = lmapcat(reverse_buffer, range(10))
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assert ys == [2, 1, 0, 5, 4, 3, 8, 7, 6]
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def buffer_sum(xs):
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return [sum(xs)]
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buffer_sum = bufferize(buffer_sum, buffer_size=3)
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ys = lmapcat(buffer_sum, range(10))
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assert ys == [0, 0, 3, 0, 0, 12, 0, 0, 21, 0]
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