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Qualitia supports headless executions. In headless mode, tests are executed without display, keyboard, and mouse. Such executions are known to be faster as compared to executions that use a display. You can use Google Chrome and Mozilla Firefox browsers to execute test cases in headless mode.

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You can execute test cases from your Qualitia offline package using following two ways.:

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If you are using Mozilla Firefox versions below 56 or Chrome versions below 60, headless executions can be triggered only by setting Headless Execution Properties in the qualitia.properties file. This mode of headless execution works on Linux only.

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  1. Open qualitia.properties.
  2. In the Headless Execution Properties section:
    1. Set HeadlessMode as True.
    2. Set Display and BrowserBinaryPath as per the requirements.

There are multiple configurations and allied software components co

mponents that are required to support executions in headless mode on Linux. In order to execute test cases in headless mode, you need to configure the headless box by installing X Virtual Frame Buffer (Xvfb).

X Virtual Frame Buffer (Xvfb) Installation

The Xvfb helps in performing all graphical operations in memory without displaying any screen output. With reference to Qualitia, Xvfb allows executing test cases performing all UI operations and capturing of screenshots without displaying on the screen. For this reason, it is recommended to set ScreenCaptureMode as Browser when performing headless mode.

To install Xvfb, enter the following command at command prompt:

  • sudo apt-get install xvfb

Xvfb uses the unique display number to run the operations graphically. Decide any number and turn the access control off entering the following command:

  • sudo Xvfb :99 -ac

Once this is done successfully, change the properties in the qualitia.properties file as mentioned below.

  • HeadlessMode=True 
  • DISPLAY=99
  • ScreenCaptureMode=BROWSER

The following is the list of commands that you need to enter to run the QOP in headless mode

  • Xvfb :99&
  • export DISPLAY=:99
  • java –jar qualitiaoffline-xxxx.jar 
(warning) Do not forget to enter the arguments related to properties file and any other arguments when executing qualitia-offline-xxx.jar