@Override
    public String getCommandWithArguments() {
        List<String> argList = new ArrayList<>();
        argList.add(super.getCommandWithArguments());
        argList.add(containerName);
        argList.addAll(commandInContainer);
        return StringUtils.join(argList, " ");
    }
@Test
    public void getCommandWithArguments() {
        dockerExecCommand.addExecCommand(Arrays.asList("ls", "-l"));
        assertEquals("exec container_name ls -l",
            dockerExecCommand.getCommandWithArguments());
    }