Align TestRestTemplate default redirect settings to be the same as RestTemplate

[philwebb]

The current situation is quite confusing. We use the defaults for the underlying library (usually follow redirects), unless you use HttpComponents. At that point we stop following redirects unless you create the TestRestTemplate with HttpClientOption.ENABLE_REDIRECTS.

[thecooldrop]

Hello @philwebb if you would be available to explain what you mean by second sentence in a bit more detail I would like to start working on this issue.

[philwebb]

Thanks for the offer @thecooldrop, but I think this one might be better handled by the team. We need to do some design work before and have some additional discussion before come up with the direction we want to take.

[bananer]

Seems like the documentation also needs to be updated: https://docs.spring.io/spring-boot/reference/testing/test-utilities.html#testing.utilities.test-rest-template

If you do use Apache’s HTTP client, some additional test-friendly features are enabled:

• Redirects are not followed (so you can assert the response location).
• Cookies are ignored (so the template is stateless).

[wilkinsona]

Thanks, @bananer. I've opened #45842.