import os import tempfile from ansible.compat.tests import unittest from ansible.module_utils._text import to_bytes from ansible.modules.system.known_hosts import compute_diff class KnownHostsDiffTestCase(unittest.TestCase): def _create_file(self, content): tmp_file = tempfile.NamedTemporaryFile(prefix='ansible-test-', suffix='-known_hosts', delete=False) tmp_file.write(to_bytes(content)) tmp_file.close() self.addCleanup(os.unlink, tmp_file.name) return tmp_file.name def test_no_existing_file(self): path = tempfile.mktemp(prefix='ansible-test-', suffix='-known_hosts') key = 'example.com ssh-rsa AAAAetc\n' diff = compute_diff(path, found_line=None, replace_or_add=False, state='present', key=key) self.assertEqual(diff, { 'before_header': '/dev/null', 'after_header': path, 'before': '', 'after': 'example.com ssh-rsa AAAAetc\n', }) def test_key_addition(self): path = self._create_file( 'two.example.com ssh-rsa BBBBetc\n' ) key = 'one.example.com ssh-rsa AAAAetc\n' diff = compute_diff(path, found_line=None, replace_or_add=False, state='present', key=key) self.assertEqual(diff, { 'before_header': path, 'after_header': path, 'before': 'two.example.com ssh-rsa BBBBetc\n', 'after': 'two.example.com ssh-rsa BBBBetc\none.example.com ssh-rsa AAAAetc\n', }) def test_no_change(self): path = self._create_file( 'one.example.com ssh-rsa AAAAetc\n' 'two.example.com ssh-rsa BBBBetc\n' ) key = 'one.example.com ssh-rsa AAAAetc\n' diff = compute_diff(path, found_line=1, replace_or_add=False, state='present', key=key) self.assertEqual(diff, { 'before_header': path, 'after_header': path, 'before': 'one.example.com ssh-rsa AAAAetc\ntwo.example.com ssh-rsa BBBBetc\n', 'after': 'one.example.com ssh-rsa AAAAetc\ntwo.example.com ssh-rsa BBBBetc\n', }) def test_key_change(self): path = self._create_file( 'one.example.com ssh-rsa AAAaetc\n' 'two.example.com ssh-rsa BBBBetc\n' ) key = 'one.example.com ssh-rsa AAAAetc\n' diff = compute_diff(path, found_line=1, replace_or_add=True, state='present', key=key) self.assertEqual(diff, { 'before_header': path, 'after_header': path, 'before': 'one.example.com ssh-rsa AAAaetc\ntwo.example.com ssh-rsa BBBBetc\n', 'after': 'two.example.com ssh-rsa BBBBetc\none.example.com ssh-rsa AAAAetc\n', }) def test_key_removal(self): path = self._create_file( 'one.example.com ssh-rsa AAAAetc\n' 'two.example.com ssh-rsa BBBBetc\n' ) key = 'one.example.com ssh-rsa AAAAetc\n' diff = compute_diff(path, found_line=1, replace_or_add=False, state='absent', key=key) self.assertEqual(diff, { 'before_header': path, 'after_header': path, 'before': 'one.example.com ssh-rsa AAAAetc\ntwo.example.com ssh-rsa BBBBetc\n', 'after': 'two.example.com ssh-rsa BBBBetc\n', }) def test_key_removal_no_change(self): path = self._create_file( 'two.example.com ssh-rsa BBBBetc\n' ) key = 'one.example.com ssh-rsa AAAAetc\n' diff = compute_diff(path, found_line=None, replace_or_add=False, state='absent', key=key) self.assertEqual(diff, { 'before_header': path, 'after_header': path, 'before': 'two.example.com ssh-rsa BBBBetc\n', 'after': 'two.example.com ssh-rsa BBBBetc\n', })