Adding API Contract Test for cdns endpoint

[gokulakrishnansvm]

Adding API Contract Test for cdns endpoint in Traffic Ops V4

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Which Traffic Control components are affected by this PR?

• Traffic Ops Test

What is the best way to verify this PR?

Step 1 : Install requirements
pip install -r requirements.txt

Step 2 : To execute cdn API Contract Testcase , navigate to traffic_ops/testing/api_contract/v4
pytest --to-user Username --to-password Password --to-url URL test_cdns.py

PR submission checklist

• This PR has tests

• This PR DOES NOT FIX A SERIOUS SECURITY VULNERABILITY (see the Apache Software Foundation's security guidelines for details)

[ocket8888]

Don't forget to check the code against our linter configuration at traffic_control/clients/python/pylint.rc

[gokulakrishnansvm]

Don't forget to check the code against our linter configuration at traffic_control/clients/python/pylint.rc

checked the code against pylint.

[ocket8888]

It looks like your Python source files are using spaces in place of real indentation. That needs to be fixed - and should be resulting in an extremely low pylint score.

Also, what happens to uncaught exceptions in the tests? Does it crash testing, or just mark a single test as a failure or what?

[ocket8888]

It looks like your Python source files are using spaces in place of real indentation. That needs to be fixed - and should be resulting in an extremely low pylint score.

Also, what happens to uncaught exceptions in the tests? Does it crash testing, or just mark a single test as a failure or what?

[ocket8888]

Looks okay to me.