have humanize_size round down rather than up
rounding up can end up showing a free size for a disk that is larger than the actual free size...
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@ -34,11 +34,14 @@ class FS:
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def humanize_size(size):
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size = abs(size)
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if size == 0:
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return "0B"
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p = math.floor(math.log(size, 2) / 10)
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return "%.3f%s" % (size / math.pow(1024, p), HUMAN_UNITS[int(p)])
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p = int(math.floor(math.log(size, 2) / 10))
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# We want to truncate the non-integral part, not round to nearest.
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s = "{:.17f}".format(size / 2**(10*p))
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i = s.index('.')
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s = s[:i+4]
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return s + HUMAN_UNITS[int(p)]
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def dehumanize_size(size):
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@ -0,0 +1 @@
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#
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@ -1,7 +1,23 @@
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import unittest
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from subiquity.models.filesystem import dehumanize_size
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from subiquity.models.filesystem import dehumanize_size, humanize_size
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class TestHumanizeSize(unittest.TestCase):
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basics = [
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('1.000M', 2**20),
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('1.500M', 2**20+2**19),
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('1.500M', 2**20+2**19),
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('1023.000M', 1023*2**20),
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('1.000G', 1024*2**20),
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]
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def test_basics(self):
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for string, integer in self.basics:
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with self.subTest(input=string):
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self.assertEqual(string, humanize_size(integer))
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class TestDehumanizeSize(unittest.TestCase):
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