Adding a simpler interface for the HTTP request library

[knabben]

What this PR does / why we need it:

the gavy/httpexpect library is not maintained and this PR raises a simpler alternative solution for the library. The idea is to keep the same interface and contract, so tests can be kept with the same behavior. This is a starter PR and the "library" will be extended as more tests starts to use it.

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)
• [ ] Documentation only

Which issue/s this PR fixes

fixes https://github.com/kubernetes/ingress-nginx/issues/8722

How Has This Been Tested?

Local testing has been made filtering only the changed folder FOCUS="\[Default Backend\]" make e2e-test

SS
------------------------------
• [SLOW TEST:14.680 seconds]
[Default Backend] SSL should return a self generated SSL certificate
/go/src/k8s.io/ingress-nginx/test/e2e/defaultbackend/ssl.go:29
------------------------------
• [SLOW TEST:19.995 seconds]
[Default Backend] should return 404 sending requests when only a default backend is running
/go/src/k8s.io/ingress-nginx/test/e2e/defaultbackend/default_backend.go:32
------------------------------
• [SLOW TEST:23.911 seconds]
[Default Backend] change default settings should apply the annotation to the default backend
/go/src/k8s.io/ingress-nginx/test/e2e/defaultbackend/with_hosts.go:38
------------------------------
• [SLOW TEST:26.438 seconds]
[Default Backend] custom service uses custom default backend that returns 200 as status code
/go/src/k8s.io/ingress-nginx/test/e2e/defaultbackend/custom_default_backend.go:36
------------------------------
 SUCCESS! 26.4771346s

Checklist:

• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [x] I've read the CONTRIBUTION guide
• [x] I have added tests to cover my changes.
• [x] All new and existing tests passed.

[strongjz]

/area stabilization /triage accepted /priority important-soon /kind feature /ok-to-test

[strongjz]

@knabben can you do a rebase and see if that fixes the conflicts?

Also fair point on the function names, can you open an issue to make sure it is being tracked?

[strongjz]

/test pull-ingress-nginx-test

[strongjz]

@knabben looks like some tests are using deprecated Ginko functionality. Can you go through and update them for Ginko v2?

[knabben]

Since most of the code was ported from the library, I think makes sense to add a note for the issue/repo URL in the folder.

[knabben]

/assign @rikatz

[knabben]

/retest

[rikatz]

/lgtm /approve Just need to rebase and fix the build/build.sh

Thank you for this one!!

[rikatz]

/lgtm 🥳

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: knabben, rikatz

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