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path: root/tests/unittests/distros/test_hostname.py
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# This file is part of cloud-init. See LICENSE file for license information.

import unittest

from cloudinit.distros.parsers import hostname

BASE_HOSTNAME = """
# My super-duper-hostname

blahblah

"""
BASE_HOSTNAME = BASE_HOSTNAME.strip()


class TestHostnameHelper(unittest.TestCase):
    def test_parse_same(self):
        hn = hostname.HostnameConf(BASE_HOSTNAME)
        self.assertEqual(str(hn).strip(), BASE_HOSTNAME)
        self.assertEqual(hn.hostname, "blahblah")

    def test_no_adjust_hostname(self):
        hn = hostname.HostnameConf(BASE_HOSTNAME)
        prev_name = hn.hostname
        hn.set_hostname("")
        self.assertEqual(hn.hostname, prev_name)

    def test_adjust_hostname(self):
        hn = hostname.HostnameConf(BASE_HOSTNAME)
        prev_name = hn.hostname
        self.assertEqual(prev_name, "blahblah")
        hn.set_hostname("bbbbd")
        self.assertEqual(hn.hostname, "bbbbd")
        expected_out = """
# My super-duper-hostname

bbbbd
"""
        self.assertEqual(str(hn).strip(), expected_out.strip())


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