pungi/tests/test_iso_wrapper.py

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# -*- coding: utf-8 -*-
import itertools
import mock
import os
import sys
try:
import unittest2 as unittest
except ImportError:
import unittest
from pungi.wrappers import iso
CORRECT_OUTPUT = '''dummy.iso: 31ff3e405e26ad01c63b62f6b11d30f6
Fragment sums: 6eb92e7bda221d7fe5f19b4d21468c9bf261d84c96d145d96c76444b9cbc
Fragment count: 20
Supported ISO: no
'''
INCORRECT_OUTPUT = '''This should never happen: File not found'''
class TestIsoUtils(unittest.TestCase):
@mock.patch('pungi.wrappers.iso.run')
def test_get_implanted_md5_correct(self, mock_run):
mock_run.return_value = (0, CORRECT_OUTPUT)
logger = mock.Mock()
self.assertEqual(iso.get_implanted_md5('dummy.iso', logger=logger),
'31ff3e405e26ad01c63b62f6b11d30f6')
self.assertEqual(mock_run.call_args_list,
[mock.call(['/usr/bin/checkisomd5', '--md5sumonly', 'dummy.iso'],
universal_newlines=True)])
self.assertEqual(logger.mock_calls, [])
@mock.patch('pungi.wrappers.iso.run')
def test_get_implanted_md5_incorrect(self, mock_run):
mock_run.return_value = (0, INCORRECT_OUTPUT)
logger = mock.Mock()
self.assertEqual(iso.get_implanted_md5('dummy.iso', logger=logger), None)
self.assertEqual(mock_run.call_args_list,
[mock.call(['/usr/bin/checkisomd5', '--md5sumonly', 'dummy.iso'],
universal_newlines=True)])
self.assertTrue(len(logger.mock_calls) > 0)
@mock.patch('pungi.util.run_unmount_cmd')
@mock.patch('pungi.wrappers.iso.run')
def test_mount_iso(self, mock_run, mock_unmount):
# first tuple is return value for command 'which guestmount'
# value determines type of the mount/unmount command ('1' - guestmount is not available)
# for approach as a root, pair commands mount-umount are used
mock_run.side_effect = [(1, ''), (0, '')]
with iso.mount('dummy') as temp_dir:
self.assertTrue(os.path.isdir(temp_dir))
self.assertEqual(len(mock_run.call_args_list), 2)
mount_call_str = str(mock_run.call_args_list[1])
self.assertTrue(mount_call_str.startswith("call(['mount'"))
self.assertEqual(len(mock_unmount.call_args_list), 1)
unmount_call_str = str(mock_unmount.call_args_list[0])
self.assertTrue(unmount_call_str.startswith("call(['umount'"))
self.assertFalse(os.path.isdir(temp_dir))
@mock.patch('pungi.util.run_unmount_cmd')
@mock.patch('pungi.wrappers.iso.run')
def test_guestmount(self, mock_run, mock_unmount):
# first tuple is return value for command 'which guestmount'
# value determines type of the mount/unmount command ('0' - guestmount is available)
# for approach as a non-root, pair commands guestmount-fusermount are used
mock_run.side_effect = [(0, ''), (0, '')]
with iso.mount('dummy') as temp_dir:
self.assertTrue(os.path.isdir(temp_dir))
self.assertEqual(len(mock_run.call_args_list), 2)
mount_call_str = str(mock_run.call_args_list[1])
self.assertTrue(mount_call_str.startswith("call(['guestmount'"))
self.assertEqual(len(mock_unmount.call_args_list), 1)
unmount_call_str = str(mock_unmount.call_args_list[0])
self.assertTrue(unmount_call_str.startswith("call(['fusermount'"))
self.assertFalse(os.path.isdir(temp_dir))
@mock.patch('pungi.util.run_unmount_cmd')
@mock.patch('pungi.wrappers.iso.run')
def test_mount_iso_always_unmounts(self, mock_run, mock_unmount):
mock_run.side_effect = [(1, ''), (0, '')]
try:
with iso.mount('dummy') as temp_dir:
self.assertTrue(os.path.isdir(temp_dir))
raise RuntimeError()
except RuntimeError:
pass
self.assertEqual(len(mock_run.call_args_list), 2)
self.assertEqual(len(mock_unmount.call_args_list), 1)
self.assertFalse(os.path.isdir(temp_dir))
@mock.patch('pungi.util.run_unmount_cmd')
@mock.patch('pungi.wrappers.iso.run')
def test_mount_iso_raises_on_error(self, mock_run, mock_unmount):
log = mock.Mock()
mock_run.side_effect = [(1, ''), (1, 'Boom')]
with self.assertRaises(RuntimeError):
with iso.mount('dummy', logger=log) as temp_dir:
self.assertTrue(os.path.isdir(temp_dir))
self.assertEqual(len(mock_run.call_args_list), 2)
self.assertEqual(len(mock_unmount.call_args_list), 0)
self.assertEqual(len(log.mock_calls), 1)
class TestCmpGraftPoints(unittest.TestCase):
def assertSorted(self, *args):
"""Tests that all permutations of arguments yield the same sorted results."""
for perm in itertools.permutations(args):
self.assertEqual(sorted(perm, key=iso.graft_point_sort_key),
list(args))
def test_eq(self):
self.assertSorted('pkgs/foo.rpm', 'pkgs/foo.rpm')
def test_rpms_sorted_alphabetically(self):
self.assertSorted('pkgs/bar.rpm', 'pkgs/foo.rpm')
def test_images_sorted_alphabetically(self):
self.assertSorted('aaa.img', 'images/foo', 'isolinux/foo')
def test_other_files_sorted_alphabetically(self):
self.assertSorted('bar.txt', 'foo.txt')
def test_rpms_after_images(self):
self.assertSorted('foo.ins', 'bar.rpm')
def test_other_after_images(self):
self.assertSorted('EFI/anything', 'zzz.txt')
def test_rpm_after_other(self):
self.assertSorted('bbb.txt', 'aaa.rpm')
def test_all_kinds(self):
self.assertSorted('etc/file', 'ppc/file', 'c.txt', 'd.txt', 'a.rpm', 'b.rpm')