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  1. #1
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    How to emulate the connection break-off ?

    Hello dear colleagues Testers and QA.
    I'm testing application that must be very stable to such events as connection breaking-off. For this testing I search tool for emulating these events.
    Does anybody know such tool(s)?
    Thanks in advance for any help.

    ------------------

  2. #2
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    Re: How to emulate the connection break-off ?

    Does your app transfer data over the internet or network and you want to simulate a disconnection in midtransfer?

    Can you just unplug the network cable manually? Hit the power button?

    Or were you trying to automate it?

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  3. #3
    Moderator JakeBrake's Avatar
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    Re: How to emulate the connection break-off ?

    <BLOCKQUOTE><font size="1" face="Verdana, Arial, Helvetica">quote:</font><HR>Originally posted by Aku:
    Hello dear colleagues Testers and QA.
    I'm testing application that must be very stable to such events as connection breaking-off.

    What do you mean by this? Inter-process connections, or physical connections such as cables? For breaking physical connections, the best tool is your set of hands! Tools that would do this - hmmm... this would probably mean killing off the process or processes, handling the connection(s). I would guess that many tools are capable of that.

    For this testing I search tool for emulating these events.
    Does anybody know such tool(s)?
    Thanks in advance for any help.

    <HR></BLOCKQUOTE>



    ------------------
    JP

  4. #4
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    Re: How to emulate the connection break-off ?

    If your are talking about a milisecond of time that this "packet" is flying over the wire how do you kill the connection, physical or within the app, at that precise moment? I don't know of anything that will give me that much control short of writing code to do it. Do I have that level of coding skills in any language? No.

    ------------------
    ER,
    Sr. QA Lead

  5. #5
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    Re: How to emulate the connection break-off ?

    <BLOCKQUOTE><font size="1" face="Verdana, Arial, Helvetica">quote:</font><HR>Originally posted by kpeste99:
    Does your app transfer data over the internet or network and you want to simulate a disconnection in midtransfer?
    Can you just unplug the network cable manually? Hit the power button?
    Or were you trying to automate it?

    <HR></BLOCKQUOTE>
    My application trancfers data over local network.
    I can unplug the network cable using my hands but I'd like to automate this process. It allows to include such tests in automated testing.

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  6. #6
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    Re: How to emulate the connection break-off ?

    The Lego 'Mindstorms' range allows you to design and build your own computer controlled robots.

    You could build one that could, on reciept of an instruction from a computer, unplug the cable for you
    http://mindstorms.lego.com/

    Have fun

    Jules



    ------------------
    Softly, Softly catchee monkey...

  7. #7
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    Re: How to emulate the connection break-off ?

    On the same train of thought as robots, you could build a circuit board that has two network connections, a switch and plugs in to the parallel port on a PC. The top of the board would receive the network cable. The bottom of the board would have a connection to the computer. The switch would be in between and be controlled by a signal from the parallel port.

    Then you write a little module to control the switch on the circuit board. The automated testing script would call the module to turn the network connection on and off at will during the tests.

    [This message has been edited by vantontl (edited 08-10-2001).]

  8. #8
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    Re: How to emulate the connection break-off ?

    Yes but once you've finished using lego to unplug a network cable for you (or you could do it by hand!) you can then use the same lego to make a robot that can deliver bug reports to developers at the other end of the office by hand in the event of your e-mail going down due to someone (or their robot) unplugging the wrong cable!

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    Softly, Softly catchee monkey...

  9. #9
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    Re: How to emulate the connection break-off ?

    Well, yeah lego's cool!

    I wonder if I could convince my boss I need to build some robot Lego Mindstorm monkeys to bang on the keyboard...

  10. #10
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    Re: How to emulate the connection break-off ?

    For a ultra low-tech way, get a small 4-5 port hub and one of those timers that plug into a wall socket and connect the hub power supply to it (digital would be best but analog is ok). Plug your box into the hub, then hub into the LAN. Create a set of tests that run over time, then program the timer to turn itself off at a specific time during those tests (killing power to the hub in the process).

    Yeah, it's MacGyver-ish but it works

    -=Will

    ------------------


    [This message has been edited by WARollo (edited 08-10-2001).]

 

 
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