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dupeguru/hscommon/tests/util_test.py
Andrew Senetar 7ba8aa3514
Format files with black
- Format all files with black
- Update tox.ini flake8 arguments to be compatible
- Add black to requirements-extra.txt
- Reduce ignored flake8 rules and fix a few violations
2019-12-31 20:16:27 -06:00

351 lines
12 KiB
Python

# Created By: Virgil Dupras
# Created On: 2011-01-11
# Copyright 2015 Hardcoded Software (http://www.hardcoded.net)
#
# This software is licensed under the "GPLv3" License as described in the "LICENSE" file,
# which should be included with this package. The terms are also available at
# http://www.gnu.org/licenses/gpl-3.0.html
from io import StringIO
from pytest import raises
from ..testutil import eq_
from ..path import Path
from ..util import *
def test_nonone():
eq_("foo", nonone("foo", "bar"))
eq_("bar", nonone(None, "bar"))
def test_tryint():
eq_(42, tryint("42"))
eq_(0, tryint("abc"))
eq_(0, tryint(None))
eq_(42, tryint(None, 42))
def test_minmax():
eq_(minmax(2, 1, 3), 2)
eq_(minmax(0, 1, 3), 1)
eq_(minmax(4, 1, 3), 3)
# --- Sequence
def test_first():
eq_(first([3, 2, 1]), 3)
eq_(first(i for i in [3, 2, 1] if i < 3), 2)
def test_flatten():
eq_([1, 2, 3, 4], flatten([[1, 2], [3, 4]]))
eq_([], flatten([]))
def test_dedupe():
reflist = [0, 7, 1, 2, 3, 4, 4, 5, 6, 7, 1, 2, 3]
eq_(dedupe(reflist), [0, 7, 1, 2, 3, 4, 5, 6])
def test_stripfalse():
eq_([1, 2, 3], stripfalse([None, 0, 1, 2, 3, None]))
def test_extract():
wheat, shaft = extract(lambda n: n % 2 == 0, list(range(10)))
eq_(wheat, [0, 2, 4, 6, 8])
eq_(shaft, [1, 3, 5, 7, 9])
def test_allsame():
assert allsame([42, 42, 42])
assert not allsame([42, 43, 42])
assert not allsame([43, 42, 42])
# Works on non-sequence as well
assert allsame(iter([42, 42, 42]))
def test_trailiter():
eq_(list(trailiter([])), [])
eq_(list(trailiter(["foo"])), [(None, "foo")])
eq_(list(trailiter(["foo", "bar"])), [(None, "foo"), ("foo", "bar")])
eq_(list(trailiter(["foo", "bar"], skipfirst=True)), [("foo", "bar")])
eq_(list(trailiter([], skipfirst=True)), []) # no crash
def test_iterconsume():
# We just want to make sure that we return *all* items and that we're not mistakenly skipping
# one.
eq_(list(range(2500)), list(iterconsume(list(range(2500)))))
eq_(
list(reversed(range(2500))), list(iterconsume(list(range(2500)), reverse=False))
)
# --- String
def test_escape():
eq_("f\\o\\ob\\ar", escape("foobar", "oa"))
eq_("f*o*ob*ar", escape("foobar", "oa", "*"))
eq_("f*o*ob*ar", escape("foobar", set("oa"), "*"))
def test_get_file_ext():
eq_(get_file_ext("foobar"), "")
eq_(get_file_ext("foo.bar"), "bar")
eq_(get_file_ext("foobar."), "")
eq_(get_file_ext(".foobar"), "foobar")
def test_rem_file_ext():
eq_(rem_file_ext("foobar"), "foobar")
eq_(rem_file_ext("foo.bar"), "foo")
eq_(rem_file_ext("foobar."), "foobar")
eq_(rem_file_ext(".foobar"), "")
def test_pluralize():
eq_("0 song", pluralize(0, "song"))
eq_("1 song", pluralize(1, "song"))
eq_("2 songs", pluralize(2, "song"))
eq_("1 song", pluralize(1.1, "song"))
eq_("2 songs", pluralize(1.5, "song"))
eq_("1.1 songs", pluralize(1.1, "song", 1))
eq_("1.5 songs", pluralize(1.5, "song", 1))
eq_("2 entries", pluralize(2, "entry", plural_word="entries"))
def test_format_time():
eq_(format_time(0), "00:00:00")
eq_(format_time(1), "00:00:01")
eq_(format_time(23), "00:00:23")
eq_(format_time(60), "00:01:00")
eq_(format_time(101), "00:01:41")
eq_(format_time(683), "00:11:23")
eq_(format_time(3600), "01:00:00")
eq_(format_time(3754), "01:02:34")
eq_(format_time(36000), "10:00:00")
eq_(format_time(366666), "101:51:06")
eq_(format_time(0, with_hours=False), "00:00")
eq_(format_time(1, with_hours=False), "00:01")
eq_(format_time(23, with_hours=False), "00:23")
eq_(format_time(60, with_hours=False), "01:00")
eq_(format_time(101, with_hours=False), "01:41")
eq_(format_time(683, with_hours=False), "11:23")
eq_(format_time(3600, with_hours=False), "60:00")
eq_(format_time(6036, with_hours=False), "100:36")
eq_(format_time(60360, with_hours=False), "1006:00")
def test_format_time_decimal():
eq_(format_time_decimal(0), "0.0 second")
eq_(format_time_decimal(1), "1.0 second")
eq_(format_time_decimal(23), "23.0 seconds")
eq_(format_time_decimal(60), "1.0 minute")
eq_(format_time_decimal(101), "1.7 minutes")
eq_(format_time_decimal(683), "11.4 minutes")
eq_(format_time_decimal(3600), "1.0 hour")
eq_(format_time_decimal(6036), "1.7 hours")
eq_(format_time_decimal(86400), "1.0 day")
eq_(format_time_decimal(160360), "1.9 days")
def test_format_size():
eq_(format_size(1024), "1 KB")
eq_(format_size(1024, 2), "1.00 KB")
eq_(format_size(1024, 0, 2), "1 MB")
eq_(format_size(1024, 2, 2), "0.01 MB")
eq_(format_size(1024, 3, 2), "0.001 MB")
eq_(format_size(1024, 3, 2, False), "0.001")
eq_(format_size(1023), "1023 B")
eq_(format_size(1023, 0, 1), "1 KB")
eq_(format_size(511, 0, 1), "1 KB")
eq_(format_size(9), "9 B")
eq_(format_size(99), "99 B")
eq_(format_size(999), "999 B")
eq_(format_size(9999), "10 KB")
eq_(format_size(99999), "98 KB")
eq_(format_size(999999), "977 KB")
eq_(format_size(9999999), "10 MB")
eq_(format_size(99999999), "96 MB")
eq_(format_size(999999999), "954 MB")
eq_(format_size(9999999999), "10 GB")
eq_(format_size(99999999999), "94 GB")
eq_(format_size(999999999999), "932 GB")
eq_(format_size(9999999999999), "10 TB")
eq_(format_size(99999999999999), "91 TB")
eq_(format_size(999999999999999), "910 TB")
eq_(format_size(9999999999999999), "9 PB")
eq_(format_size(99999999999999999), "89 PB")
eq_(format_size(999999999999999999), "889 PB")
eq_(format_size(9999999999999999999), "9 EB")
eq_(format_size(99999999999999999999), "87 EB")
eq_(format_size(999999999999999999999), "868 EB")
eq_(format_size(9999999999999999999999), "9 ZB")
eq_(format_size(99999999999999999999999), "85 ZB")
eq_(format_size(999999999999999999999999), "848 ZB")
def test_remove_invalid_xml():
eq_(remove_invalid_xml("foo\0bar\x0bbaz"), "foo bar baz")
# surrogate blocks have to be replaced, but not the rest
eq_(remove_invalid_xml("foo\ud800bar\udfffbaz\ue000"), "foo bar baz\ue000")
# replace with something else
eq_(remove_invalid_xml("foo\0baz", replace_with="bar"), "foobarbaz")
def test_multi_replace():
eq_("136", multi_replace("123456", ("2", "45")))
eq_("1 3 6", multi_replace("123456", ("2", "45"), " "))
eq_("1 3 6", multi_replace("123456", "245", " "))
eq_("173896", multi_replace("123456", "245", "789"))
eq_("173896", multi_replace("123456", "245", ("7", "8", "9")))
eq_("17386", multi_replace("123456", ("2", "45"), "78"))
eq_("17386", multi_replace("123456", ("2", "45"), ("7", "8")))
with raises(ValueError):
multi_replace("123456", ("2", "45"), ("7", "8", "9"))
eq_("17346", multi_replace("12346", ("2", "45"), "78"))
# --- Files
class TestCase_modified_after:
def test_first_is_modified_after(self, monkeyplus):
monkeyplus.patch_osstat("first", st_mtime=42)
monkeyplus.patch_osstat("second", st_mtime=41)
assert modified_after("first", "second")
def test_second_is_modified_after(self, monkeyplus):
monkeyplus.patch_osstat("first", st_mtime=42)
monkeyplus.patch_osstat("second", st_mtime=43)
assert not modified_after("first", "second")
def test_same_mtime(self, monkeyplus):
monkeyplus.patch_osstat("first", st_mtime=42)
monkeyplus.patch_osstat("second", st_mtime=42)
assert not modified_after("first", "second")
def test_first_file_does_not_exist(self, monkeyplus):
# when the first file doesn't exist, we return False
monkeyplus.patch_osstat("second", st_mtime=42)
assert not modified_after("does_not_exist", "second") # no crash
def test_second_file_does_not_exist(self, monkeyplus):
# when the second file doesn't exist, we return True
monkeyplus.patch_osstat("first", st_mtime=42)
assert modified_after("first", "does_not_exist") # no crash
def test_first_file_is_none(self, monkeyplus):
# when the first file is None, we return False
monkeyplus.patch_osstat("second", st_mtime=42)
assert not modified_after(None, "second") # no crash
def test_second_file_is_none(self, monkeyplus):
# when the second file is None, we return True
monkeyplus.patch_osstat("first", st_mtime=42)
assert modified_after("first", None) # no crash
class TestCase_delete_if_empty:
def test_is_empty(self, tmpdir):
testpath = Path(str(tmpdir))
assert delete_if_empty(testpath)
assert not testpath.exists()
def test_not_empty(self, tmpdir):
testpath = Path(str(tmpdir))
testpath["foo"].mkdir()
assert not delete_if_empty(testpath)
assert testpath.exists()
def test_with_files_to_delete(self, tmpdir):
testpath = Path(str(tmpdir))
testpath["foo"].open("w")
testpath["bar"].open("w")
assert delete_if_empty(testpath, ["foo", "bar"])
assert not testpath.exists()
def test_directory_in_files_to_delete(self, tmpdir):
testpath = Path(str(tmpdir))
testpath["foo"].mkdir()
assert not delete_if_empty(testpath, ["foo"])
assert testpath.exists()
def test_delete_files_to_delete_only_if_dir_is_empty(self, tmpdir):
testpath = Path(str(tmpdir))
testpath["foo"].open("w")
testpath["bar"].open("w")
assert not delete_if_empty(testpath, ["foo"])
assert testpath.exists()
assert testpath["foo"].exists()
def test_doesnt_exist(self):
# When the 'path' doesn't exist, just do nothing.
delete_if_empty(Path("does_not_exist")) # no crash
def test_is_file(self, tmpdir):
# When 'path' is a file, do nothing.
p = Path(str(tmpdir)) + "filename"
p.open("w").close()
delete_if_empty(p) # no crash
def test_ioerror(self, tmpdir, monkeypatch):
# if an IO error happens during the operation, ignore it.
def do_raise(*args, **kw):
raise OSError()
monkeypatch.setattr(Path, "rmdir", do_raise)
delete_if_empty(Path(str(tmpdir))) # no crash
class TestCase_open_if_filename:
def test_file_name(self, tmpdir):
filepath = str(tmpdir.join("test.txt"))
open(filepath, "wb").write(b"test_data")
file, close = open_if_filename(filepath)
assert close
eq_(b"test_data", file.read())
file.close()
def test_opened_file(self):
sio = StringIO()
sio.write("test_data")
sio.seek(0)
file, close = open_if_filename(sio)
assert not close
eq_("test_data", file.read())
def test_mode_is_passed_to_open(self, tmpdir):
filepath = str(tmpdir.join("test.txt"))
open(filepath, "w").close()
file, close = open_if_filename(filepath, "a")
eq_("a", file.mode)
file.close()
class TestCase_FileOrPath:
def test_path(self, tmpdir):
filepath = str(tmpdir.join("test.txt"))
open(filepath, "wb").write(b"test_data")
with FileOrPath(filepath) as fp:
eq_(b"test_data", fp.read())
def test_opened_file(self):
sio = StringIO()
sio.write("test_data")
sio.seek(0)
with FileOrPath(sio) as fp:
eq_("test_data", fp.read())
def test_mode_is_passed_to_open(self, tmpdir):
filepath = str(tmpdir.join("test.txt"))
open(filepath, "w").close()
with FileOrPath(filepath, "a") as fp:
eq_("a", fp.mode)