E2E tests for implemented flows

[hifabienne]

As ZITADEL Admins we want to ensure that all of the implemented oidc flows always work with the current ZITADEL Cloud version.

Acceptance Criteria

• Basic setup for e2e tests is done
• E2E test for pkce flow is implemented
• Username / Password Authentication is e2e tested
• PRs can only be merged if e2e tests succeed
• Nightly e2e tests ensure we detect breaking cloud version changes early

Open Questions

How do we want to run the e2e tests?
To preview deployement?
In the pipeline?

[eliobischof]

I would add to the AC:

• PRs can only be merged if e2e tests succeed
• Nightly e2e tests ensure we detect breaking cloud version changes early

Estimation: 3

[peintnermax]

I would add to the AC:

• PRs can only be merged if e2e tests succeed
• Nightly e2e tests ensure we detect breaking cloud version changes early

Estimation: 3

agree 👍