# This file is part of cloud-init. See LICENSE file for license information.

"""Tests cc_apt_pipelining handler"""

import cloudinit.config.cc_apt_pipelining as cc_apt_pipelining

from tests.unittests.helpers import CiTestCase, mock


class TestAptPipelining(CiTestCase):

    @mock.patch('cloudinit.config.cc_apt_pipelining.util.write_file')
    def test_not_disabled_by_default(self, m_write_file):
        """ensure that default behaviour is to not disable pipelining"""
        cc_apt_pipelining.handle('foo', {}, None, mock.MagicMock(), None)
        self.assertEqual(0, m_write_file.call_count)

    @mock.patch('cloudinit.config.cc_apt_pipelining.util.write_file')
    def test_false_disables_pipelining(self, m_write_file):
        """ensure that pipelining can be disabled with correct config"""
        cc_apt_pipelining.handle(
            'foo', {'apt_pipelining': 'false'}, None, mock.MagicMock(), None)
        self.assertEqual(1, m_write_file.call_count)
        args, _ = m_write_file.call_args
        self.assertEqual(cc_apt_pipelining.DEFAULT_FILE, args[0])
        self.assertIn('Pipeline-Depth "0"', args[1])

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