Initial commit

venv/lib/python3.8/site-packages/joblib/test/test_disk.py

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