test: rewrite and traversal

[rbnbr]

Related issue(s)

1529 comment

Checklist

• [x] I have read the contributing guidelines.
• [x] I have referenced an issue containing the design document if my change introduces a new feature.
• [ ] I am following the contributing code guidelines.
• [ ] I have read the security policy.
• [x] I confirm that this pull request does not address a security vulnerability. If this pull request addresses a security vulnerability, I confirm that I got the approval (please contact security@ory.sh) from the maintainers to push the changes.
• [ ] I have added tests that prove my fix is effective or that my feature works.
• [ ] I have added or changed the documentation.

Further Comments

I added a test similar to https://github.com/ory/keto/pull/1529 though for some reason I cannot run the test command on my machine at all, e.g., go test -tags sqlite .\internal\check\ fails for the current master branch.

[CLAassistant]

All committers have signed the CLA.

[aeneasr]

Can this be merged?