72 lines
2.2 KiB
Python
72 lines
2.2 KiB
Python
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"""
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Unit tests for the disk utilities.
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"""
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# Authors: Gael Varoquaux <gael dot varoquaux at normalesup dot org>
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# Lars Buitinck
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# Copyright (c) 2010 Gael Varoquaux
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# License: BSD Style, 3 clauses.
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from __future__ import with_statement
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import array
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import os
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from joblib.disk import disk_used, memstr_to_bytes, mkdirp, rm_subdirs
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from joblib.testing import parametrize, raises
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###############################################################################
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def test_disk_used(tmpdir):
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cachedir = tmpdir.strpath
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# Not write a file that is 1M big in this directory, and check the
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# size. The reason we use such a big file is that it makes us robust
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# to errors due to block allocation.
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a = array.array('i')
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sizeof_i = a.itemsize
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target_size = 1024
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n = int(target_size * 1024 / sizeof_i)
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a = array.array('i', n * (1,))
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with open(os.path.join(cachedir, 'test'), 'wb') as output:
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a.tofile(output)
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assert disk_used(cachedir) >= target_size
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assert disk_used(cachedir) < target_size + 12
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@parametrize('text,value',
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[('80G', 80 * 1024 ** 3),
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('1.4M', int(1.4 * 1024 ** 2)),
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('120M', 120 * 1024 ** 2),
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('53K', 53 * 1024)])
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def test_memstr_to_bytes(text, value):
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assert memstr_to_bytes(text) == value
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@parametrize('text,exception,regex',
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[('fooG', ValueError, r'Invalid literal for size.*fooG.*'),
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('1.4N', ValueError, r'Invalid literal for size.*1.4N.*')])
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def test_memstr_to_bytes_exception(text, exception, regex):
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with raises(exception) as excinfo:
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memstr_to_bytes(text)
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assert excinfo.match(regex)
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def test_mkdirp(tmpdir):
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mkdirp(os.path.join(tmpdir.strpath, 'ham'))
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mkdirp(os.path.join(tmpdir.strpath, 'ham'))
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mkdirp(os.path.join(tmpdir.strpath, 'spam', 'spam'))
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# Not all OSErrors are ignored
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with raises(OSError):
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mkdirp('')
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def test_rm_subdirs(tmpdir):
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sub_path = os.path.join(tmpdir.strpath, "am", "stram")
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full_path = os.path.join(sub_path, "gram")
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mkdirp(os.path.join(full_path))
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rm_subdirs(sub_path)
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assert os.path.exists(sub_path)
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assert not os.path.exists(full_path)
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