4.1. Listeners

Goal

• Create a listener named TimeListener which logs the start time of the test execution to the console.

Solution

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from robot.api import logger


class TimeListener():
    """Logs the start time of the test execution to console."""

    ROBOT_LISTENER_API_VERSION = 3

    def start_test(self, test, result):
        logger.console(
            '\nTest execution started at: {}!'.format(result.starttime)
        )

Results

To be able to use TimeListener without defining the whole path to the file, you need to set its location with --pythonpath parameter.

Inside the tests folder, execute the following command.

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robot --pythonpath libraries --pythonpath listeners --listener TimeListener .

The start time of the execution should be mentioned at every test case:

==============================================================================
Tests.01-Greetings.01-Greetings                                               
==============================================================================
Original Greetings :: This test case checks that the Print Your Na... 
Test execution started at: 20200608 16:58:16.692!
Original Greetings :: This test case checks that the Print Your Na... | PASS |

You can check the generated log.html file to see how your test cases worked.