Virtual Touch Events for XTEST
prakash.guru at gmail.com
Wed Feb 22 06:55:07 UTC 2017
I want to create an virtual test environment for my web application. I got
it working with the help of xvfb and running google-chrome inside it. I am
able to send keytrokes and mouse events through the xdotool
http://www.semicomplete.com/projects/xdotool which internally uses XTEST.
I do have some test cases where I have to send touch events to the chrome
browser. Unfortunately the xdotool does not support sending touch events. I
am unable to find any info about whether XTEST supports touch events or not.
I tried creating a "virtual touch device" using user mode input subsystem
"uinput" which works only on the logged in x-org session. I am able to send
touch events [Code attached in the bottom].
But the Xvfb dont care about the virtual uinput devices the "xinput list"
revealed only the following.
>sudo DISPLAY=localhost:2.0 xinput list
*⎡ Virtual core pointer id=2 [master pointer
(3)]⎜ ↳ Virtual core XTEST pointer id=4 [slave
pointer (2)]⎜ ↳ Xvfb mouse id=6
[slave pointer (2)]⎣ Virtual core keyboard
id=3 [master keyboard (2)] ↳ Virtual core XTEST
keyboard id=5 [slave keyboard (3)] ↳ Xvfb
keyboard id=7 [slave keyboard (3)]*
I also tried the virtual uinput device with "Xorg X11 dummy video driver"
https://xpra.org/trac/wiki/Xdummy which is also not detecting the my
"virtual touch device" ( I ran the xorg as non root).
I am struck. I don't know where to proceed further.
Is there any other options available? Do I have to implement something else?
Any help would be greatly appreciated.
1. Starting X virtual frame buffer - "Xvfb :2 -screen 0 1600x900x24"
2. virtual touch device uinput code -
https://drive.google.com/open?id=0B2lQr8WlvKmzZjhJOHB0b0x4ZGc (with the
help of http://thiemonge.org/getting-started-with-uinput )
3. For the xvfb - I used CentOS 7.3 with Xorg - 1.17.2, pixman 0.34.0,
4. For the x dummy driver - I used ubuntu 16.10 with Xorg 1.18.4, pixman -
0.33.6 , kernel -4.10.
Anyone who has never made a mistake has never tried anything new.
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