Introduction:

1. Listeners in Robot Framework are indeed Python classes that allow developers to interact with the test execution process at various stages.
2. These listeners serve as hooks or callbacks that trigger specific actions or behaviors during different phases of test execution.
3. They enable users to gather information, manipulate the execution flow, or perform custom actions based on events occurring during test runs.

Dependency required:

There are no explicit dependencies required for the implementation of listeners. Instead, we can access and use Robot Framework’s built-in keywords and variables by importing the BuiltIn library from robot.libraries.BuiltIn.

Listener interface versions:

There are two supported listener interface versions.

1. A listener must have an attribute ROBOT_LISTENER_API_VERSION with value 2 or 3.
2. Listener versions 2 and 3 have mostly the same methods, but some methods are not available in version 3.
3. As per requirement/pre-condition method can be called such as start_keyword, end_keyword, message, library_import, resource_import, and variables_import.

As per Robot documentation below methods are available:

Methods

Listener Implementation:

• Imports Robot – BuiltIn lib

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• Class and constructor

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• Get project root path

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• Python Configuration file for listeners

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• Mapping of Robot keywords

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• Start suite

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• Start Test

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• End Test

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• End Suite

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Test Execution:

Execute test suite using this command

robot --listener listenerFilePath TestFileName.robot

Test Execution Report:

Attaching execution reports for reference:

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