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# SPDX-FileCopyrightText: Florian Bruhin (The Compiler) <mail@qutebrowser.org>
#
# SPDX-License-Identifier: GPL-3.0-or-later
"""Tests for qutebrowser.misc.lineparser."""
import pathlib
from unittest import mock
import pytest
from qutebrowser.misc import lineparser as lineparsermod
class TestBaseLineParser:
CONFDIR = "this really doesn't matter"
FILENAME = "and neither does this"
@pytest.fixture
def lineparser(self):
"""Fixture providing a BaseLineParser."""
return lineparsermod.BaseLineParser(self.CONFDIR, self.FILENAME)
def test_prepare_save_missing(self, mocker, lineparser):
"""Test if _prepare_save does what it's supposed to do."""
os_mock = mocker.patch('qutebrowser.misc.lineparser.os')
lineparser._prepare_save()
os_mock.makedirs.assert_called_with(self.CONFDIR, 0o755, exist_ok=True)
def test_double_open(self, mocker, lineparser):
"""Test if _open refuses reentry."""
mocker.patch('builtins.open', mock.mock_open())
with lineparser._open('r'):
with pytest.raises(OSError,
match="Refusing to double-open LineParser."):
with lineparser._open('r'):
pass
def test_binary(self, mocker):
"""Test if _open and _write correctly handle binary files."""
open_mock = mock.mock_open()
mocker.patch('builtins.open', open_mock)
testdata = b'\xf0\xff'
lineparser = lineparsermod.BaseLineParser(
self.CONFDIR, self.FILENAME, binary=True)
with lineparser._open('r') as f:
lineparser._write(f, [testdata])
open_mock.assert_called_once_with(
str(pathlib.Path(self.CONFDIR) / self.FILENAME), 'rb')
open_mock().write.assert_has_calls([
mock.call(testdata),
mock.call(b'\n')
])
class TestLineParser:
@pytest.fixture
def lineparser(self, tmp_path):
"""Fixture to get a LineParser for tests."""
lp = lineparsermod.LineParser(str(tmp_path), 'file')
lp.save()
return lp
def test_init(self, tmp_path):
"""Test if creating a line parser correctly reads its file."""
(tmp_path / 'file').write_text('one\ntwo\n')
lineparser = lineparsermod.LineParser(str(tmp_path), 'file')
assert lineparser.data == ['one', 'two']
(tmp_path / 'file').write_bytes(b'\xfe\n\xff\n')
lineparser = lineparsermod.LineParser(str(tmp_path), 'file',
binary=True)
assert lineparser.data == [b'\xfe', b'\xff']
def test_clear(self, tmp_path, lineparser):
"""Test if clear() empties its file."""
lineparser.data = ['one', 'two']
lineparser.save()
assert (tmp_path / 'file').read_text() == 'one\ntwo\n'
lineparser.clear()
assert not lineparser.data
assert (tmp_path / 'file').read_text() == ''
def test_double_open(self, lineparser):
"""Test if save() bails on an already open file."""
with lineparser._open('r'):
with pytest.raises(OSError,
match="Refusing to double-open LineParser."):
lineparser.save()
def test_prepare_save(self, tmp_path, lineparser):
"""Test if save() bails when _prepare_save() returns False."""
(tmp_path / 'file').write_text('pristine\n')
lineparser.data = ['changed']
lineparser._prepare_save = lambda: False
lineparser.save()
assert (tmp_path / 'file').read_text() == 'pristine\n'
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