pmbootstrap-meow/test/test_folder_size.py
Oliver Smith e605a0af32
test/pmb_test: prepare for common test code (!1876)
Replace the "Add topdir to import path" boilerplate lines in each test
file with a simple "import pmb_test". Use the "# noqa" comment if
"pmb_test" is not used further in the test file, so flake8 does not
complain about an unused module.

Make the path to the testdata available as pmb_test.const.testdata, and
use pmb.config.pmb_src to access the topdir in all tests.

This is in preparation for new "pmbootstrap status" related tests, which
will have shared test code in test/pmb_test/. Also, this makes the
pmbootstrap codebase more consistent with the bpo codebase, which has a
similar "import bpo_test" mechanism.
2020-02-24 03:01:04 +03:00

53 lines
1.7 KiB
Python

"""
Copyright 2020 Oliver Smith
This file is part of pmbootstrap.
pmbootstrap is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
pmbootstrap is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with pmbootstrap. If not, see <http://www.gnu.org/licenses/>.
"""
import sys
import pytest
import pmb_test # noqa
import pmb.helpers.logging
import pmb.helpers.other
import pmb.helpers.run
@pytest.fixture
def args(request):
import pmb.parse
sys.argv = ["pmbootstrap.py", "chroot"]
args = pmb.parse.arguments()
args.details_to_stdout = True
pmb.helpers.logging.init(args)
return args
def test_get_folder_size(args, tmpdir):
# Write five 200 KB files to tmpdir
tmpdir = str(tmpdir)
files = 5
for i in range(files):
pmb.helpers.run.user(args, ["dd", "if=/dev/zero", "of=" +
tmpdir + "/" + str(i), "bs=1K",
"count=200", "conv=notrunc"])
# Check if the size is correct. Unfortunately, the `du` call
# in pmb.helpers.other.folder_size is not very accurate, so we
# allow 30kb of tolerance (good enough for our use case): #760 #1717
tolerance = 30 * 1024
size = 204800 * files
result = pmb.helpers.other.folder_size(args, tmpdir)
assert (result < size + tolerance and result > size - tolerance)