...
- A telnet connection is established from Master to Agent when we create a Script instance by running lutf_script.Script('local_intf', 'script_path ', 'output_dir') (lutf_script.py).
- The scripts from 'script_path' in lutf_script.Script('local_intf', 'script_path ', 'output_dir') are copied over to Agent using scp (lutf_agent_ctrl.py).
- The copied scripts are then executed by calling run_script() on the Script instance created. (lutf_agent_ctrl.py).
- If an 'output_dir' path is specified then the results of the script execution are copied to the path given by calling push_results(). If no path is provided for the 'output_dir' then the results are ignored.
...
Improvements
- Currently the LUTF is designed to have the Python infrastructure establish a Telnet connection to facilitate Master to scp the test scripts to Agent and then execute those test scripts. The Telnet approach can be improved upon by using SSH instead.
- A synchronization mechanism can be added to synchronize the different parts of one test script running on different Agents by providing an API that uses notification mechanism. The Master node will control this synchronization between different Agent nodes that are used for running a test script. An example scenario of how it would be implemented is -If a test script is such that it requires to do some operation on more than one Agent node, then as one part of a test script runs to it completion on one Agent, it would notify the Master about its status by calling this API and then Master can redirect this event to the main script waiting on it which will trigger the other part (operation) to start execution on another Agent node.
Batch test
- All the similar test scripts (pertaining to one feature like multi-rail or Dynamic Discovery) are bundled in one auto-test script which when executed, runs all the test-scripts listed in it and then post the cumulative results after execution.
- There is an auto-test script for each of the bundle of test-scripts related to one feature.
- The result file for each individual test script is also placed in lutfTMP directory on Master node.
- Improvement Suggestion - The above design can be changed to have all the test scripts related to a feature placed in separate directory under LUTF/python/tests/ and then have single auto-test script which will trigger the execution of all the test scripts under one folder. The name of the folder can be passed as a parameter to this auto-test script.
...