def apply(stdout=None, stderr=None, returncode=0):
stdout_stream = Factory(read=lambda: stdout)
stderr_stream = Factory(read=lambda: stderr)
return_value = Factory(stdout=stdout_stream,
stderr=stderr_stream,
wait=lambda: returncode,
communicate=lambda x:
(stdout, stderr, returncode))
monkeypatch.setattr('ceph_volume.util.system.subprocess.Popen',
lambda *a, **kw: return_value)
def test_include_force(self, fake_run, monkeypatch):
monkeypatch.setattr(conf, 'ceph',
Factory(get_list=lambda *a, **kw: []))
prepare.format_device('/dev/sxx')
flags = fake_run.calls[0]['args'][0]
assert '-f' in flags
