Add integration tests feed

[noah-paige]

Feature or Bugfix

• Feature

Detail

• Add integration tests for feed module

Relates

• Integration tests executed on a real deployment as part of the CICD #1220

Security

Please answer the questions below briefly where applicable, or write N/A. Based on
OWASP 10.

• Does this PR introduce or modify any input fields or queries - this includes
  fetching data from storage outside the application (e.g. a database, an S3 bucket)?
  • Is the input sanitized?
  • What precautions are you taking before deserializing the data you consume?
  • Is injection prevented by parametrizing queries?
  • Have you ensured no eval or similar functions are used?
• Does this PR introduce any functionality or component that requires authorization?
  • How have you ensured it respects the existing AuthN/AuthZ mechanisms?
  • Are you logging failed auth attempts?
• Are you using or adding any cryptographic features?
  • Do you use a standard proven implementations?
  • Are the used keys controlled by the customer? Where are they stored?
• Are you introducing any new policies/roles/users?
  • Have you used the least-privilege principle? How?

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[SofiaSazonova]

I know, that it's not the most interesting part of data.all, but... Don't we need to test non-happy path like 'no permissions to post feed' or smth?

[noah-paige]

I know, that it's not the most interesting part of data.all, but... Don't we need to test non-happy path like 'no permissions to post feed' or smth?

Currently we do not protect against postFeedMessage or getFeed - meaning any data.all users can execute those APIs

I can add an additional check to ensure error thrown when targetUri and targetType not specified at a bare minimum at this point to add some coverage

But overall may want to make feed more robust and add some additional checks at a later date

[noah-paige]

@SofiaSazonova - pushed some unhappy path checks, please re-review when you have some time!