def commit_changes_common(write_error, restart_error, result):
frr = MagicMock()
frr.write = MagicMock(return_value=write_error)
frr.restart_peer_groups = MagicMock(return_value=restart_error)
c = ConfigMgr(frr)
c.reset = MagicMock()
c.push_list(["change1", "change2"])
c.restart_peer_groups(["pg1", "pg2"])
res = c.commit()
assert res == result
assert c.reset.called
frr.write.assert_called_with('change1\nchange2\n')
frr.restart_peer_groups.assert_called_with(["pg1", "pg2"])
def test_commit_empty_changes():
frr = MagicMock()
c = ConfigMgr(frr)
res = c.commit()
assert res
assert not frr.write.called
