那些你不知道的官方未公开的Monkey功能——Monkey Server

前面的内容请参见Android应用自动化测试-提纲。

前篇介绍了Monkey的进阶用法，Monkey的脚本功能。这篇继续介绍另一个在官方介绍文档中没有说明的功能，Monkey的Server功能。Monkey的Server功能提供了远程访问设备并控制设备执行的能力。在monkey的参数中，我们可以看到有一个–port的参数，它提供的就是Monkey连接server，并控制设备执行的功能。

还是来到Monkey的源码，在Monkey的源码目录下有一个Readme.network.txt的说明文档，就是说明这个server功能的使用的。

SIMPLE PROTOCOL FOR AUTOMATED NETWORK CONTROL

The Simple Protocol for Automated Network Control was designed to be a
low-level way to programmability inject KeyEvents and MotionEvents
into the input system.  The idea is that a process will run on a host
computer that will support higher-level operations (like conditionals,
etc.) and will talk (via TCP over ADB) to the device in Simple
Protocol for Automated Network Control.  For security reasons, the
Monkey only binds to localhost, so you will need to use adb to setup
port forwarding to actually talk to the device.

INITIAL SETUP

Setup port forwarding from a local port on your machine to a port on
the device:

$ adb forward tcp:1080 tcp:1080

Start the monkey server

$ adb shell monkey --port 1080

Now you're ready to run commands

COMMAND LIST

Individual commands are separated by newlines.  The Monkey will
respond to every command with a line starting with OK for commands
that executed without a problem, or a line starting with ERROR for
commands that had problems being run.  For commands that return a
value, that value is returned on the same line as the OK or ERROR
response.  The value is everything after (but not include) the colon
on that line.  For ERROR values, this could be a message indicating
what happened.  A possible example:

key down menu
OK
touch monkey
ERROR: monkey not a number
getvar sdk
OK: donut
getvar foo
ERROR: no such var

The complete list of commands follows:

key [down|up] keycode

This command injects KeyEvent's into the input system.  The keycode
parameter refers to the KEYCODE list in the KeyEvent class
(http://developer.android.com/reference/android/view/KeyEvent.html).
The format of that parameter is quite flexible.  Using the menu key as
an example, it can be 82 (the integer value of the keycode),
KEYCODE_MENU (the name of the keycode), or just menu (and the Monkey
will add the KEYCODE part).  Do note that this last part doesn't work
for things like KEYCODE_1 for obvious reasons.

Note that sending a full button press requires sending both the down
and the up event for that key

touch [down|up|move] x y

This command injects a MotionEvent into the input system that
simulates a user touching the touchscreen (or a pointer event).  x and
y specify coordinates on the display (0 0 being the upper left) for
the touch event to happen.  Just like key events, touch events at a
single location require both a down and an up.  To simulate dragging,
send a "touch down", then a series of "touch move" events (to simulate
the drag), followed by a "touch up" at the final location.

trackball dx dy

This command injects a MotionEvent into the input system that
simulates a user using the trackball. dx and dy indicates the amount
of change in the trackball location (as opposed to exact coordinates
that the touch events use)

flip [open|close]

This simulates the opening or closing the keyboard (like on dream).

wake

This command will wake the device up from sleep and allow user input.

tap x y
The tap command is a shortcut for the touch command.  It will
automatically send both the up and the down event.

press keycode

The press command is a shortcut for the key command.  The keycode
paramter works just like the key command and will automatically send
both the up and the down event.

type string

This command will simulate a user typing the given string on the
keyboard by generating the proper KeyEvents.

listvar

This command lists all the vars that the monkey knows about.  They are
returned as a whitespace separated list.

getvar varname

This command returns the value of the given var.  listvar can be used
to find out what vars are supported.

quit

Fully quit the monkey and accept no new sessions.

done

Close the current session and allow a new session to connect

OTHER NOTES

There are some convenience features added to allow running without
needing a host process.

Lines starting with a # character are considered comments.  The Monkey
eats them and returns no indication that it did anything (no ERROR and
no OK).

You can put the Monkey to sleep by using the "sleep" command with a
single argument, how many ms to sleep.

我们提取其中主要的用法：
首先需要利用adb的forward命令，被本地端口和设备端口进行映射

adb forward tcp:1080 tcp:1080

然后利用Monkey的–port将Monkey Server开放在1080端口上

adb shell monkey --port 1080

这时我们通过telnet连接本机的1080端口，即可访问到设备上的Monkey server，并且执行Server中的相关指令。

telnet 127.0.0.1 1080

• key [down|up] keycode – 指定Keycode的按键事件（分按下、弹起）
• touch [down|up|move] x y – 指定坐标的触屏操作（分按下、弹起、移动）
• trackball dx dy – 轨迹球操作
• tap x y – 指定坐标的触屏操作
• flip [open|close] – 调用软键盘
• wake – 唤醒设备
• press keycode – 指定Keycode的按键事件
• listvar – 列出所有的系统变量
• getvar varname – 获取给定系统变量值
• quit – 退出当前连接，且不接受新的连接
• done – 退出当前连接，但可以接受新的连接

命令执行成功，会返回OK的响应。如果执行错误则返回error command.
注意操作退出telnet前，需要执行done指令，否则再次连接，会报端口已占用的错误。只能重启设备以释放端口。
操作示例：