def copy_qcow2_image(base, target, size):
# TODO(pbrady): Consider copying the cow image here
# with preallocation=metadata set for performance reasons.
# This would be keyed on a 'preallocate_images' setting.
libvirt_utils.create_cow_image(base, target)
if size:
disk.extend(target, size, use_cow=True)
def copy_qcow2_image(base, target, size):
# TODO(pbrady): Consider copying the cow image here
# with preallocation=metadata set for performance reasons.
# This would be keyed on a 'preallocate_images' setting.
libvirt_utils.create_cow_image(base, target)
if size:
disk.extend(target, size, use_cow=True)
def test_create_cow_image(self, mock_execute, mock_exists):
mock_execute.return_value = ('stdout', None)
libvirt_utils.create_cow_image('/some/path', '/the/new/cow')
expected_args = [(('env', 'LC_ALL=C', 'LANG=C', 'qemu-img', 'info',
'/some/path'), ),
(('qemu-img', 'create', '-f', 'qcow2', '-o',
'backing_file=/some/path', '/the/new/cow'), )]
self.assertEqual(expected_args, mock_execute.call_args_list)
def test_create_cow_image(self, mock_execute, mock_exists):
mock_execute.return_value = ('stdout', None)
libvirt_utils.create_cow_image('/some/path', '/the/new/cow')
expected_args = [(('env', 'LC_ALL=C', 'LANG=C',
'qemu-img', 'info', '/some/path'),),
(('qemu-img', 'create', '-f', 'qcow2',
'-o', 'backing_file=/some/path',
'/the/new/cow'),)]
self.assertEqual(expected_args, mock_execute.call_args_list)
