Add lacp no traffic tests

[StepanVovkPLV]

Signed-off-by: Stepan Vovk stepan.vovk@plvision.eu

[SerhiyBoikoPLV]

please add __init__.py to ./functional/lacp/ folder, because otherwise pytest does not see these LACP tests

[github-actions]

The pre-commit check detected issues in the files touched by this pull request.

Detailed pre-commit check results:

[INFO] Initializing environment for https://github.com/pre-commit/pre-commit-hooks. [INFO] Initializing environment for https://github.com/PyCQA/flake8. [INFO] Installing environment for https://github.com/pre-commit/pre-commit-hooks. [INFO] Once installed this environment will be reused. [INFO] This may take a few minutes... [INFO] Installing environment for https://github.com/PyCQA/flake8. [INFO] Once installed this environment will be reused. [INFO] This may take a few minutes... mixed line ending........................................................Passed trim trailing whitespace.................................................Passed fix end of files.........................................................Passed check for case conflicts.................................................Passed check python ast.........................................................Passed check json...........................................(no files to check)Skipped fix double quoted strings................................................Passed flake8...................................................................Failed - hook id: flake8 - exit code: 1 DentOS_Framework/DentOsTestbed/src/dent_os_testbed/test/test_suite/functional/lacp/test_lacp_no_traffic.py:140:39: F541 f-string is missing placeholders
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2. Ensure that the pre-commit package is installed:

sudo pip install pre-commit

3. Go to repository root folder

4. Install the pre-commit hooks:

pre-commit install

5. Use pre-commit to check staged file:

pre-commit

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pre-commit run --from-ref <commit_id> --to-ref <commit_id>
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[github-actions]

The pre-commit check detected issues in the files touched by this pull request.

Detailed pre-commit check results:

[INFO] Initializing environment for https://github.com/pre-commit/pre-commit-hooks. [INFO] Initializing environment for https://github.com/PyCQA/flake8. [INFO] Installing environment for https://github.com/pre-commit/pre-commit-hooks. [INFO] Once installed this environment will be reused. [INFO] This may take a few minutes... [INFO] Installing environment for https://github.com/PyCQA/flake8. [INFO] Once installed this environment will be reused. [INFO] This may take a few minutes... mixed line ending........................................................Passed trim trailing whitespace.................................................Passed fix end of files.........................................................Passed check for case conflicts.................................................Passed check python ast.........................................................Passed check json...........................................(no files to check)Skipped fix double quoted strings................................................Passed flake8...................................................................Failed - hook id: flake8 - exit code: 1 DentOS_Framework/DentOsTestbed/src/dent_os_testbed/test/test_suite/functional/lacp/test_lacp_no_traffic.py:140:39: F541 f-string is missing placeholders
To run the pre-commit checks locally, you can follow below steps:

1. Ensure that default python is python3.

2. Ensure that the pre-commit package is installed:

sudo pip install pre-commit

3. Go to repository root folder

4. Install the pre-commit hooks:

pre-commit install

5. Use pre-commit to check staged file:

pre-commit

6. Alternatively, you can check committed files using:

pre-commit run --from-ref <commit_id> --to-ref <commit_id>
or
pre-commit run --all-files