(feat): added e2e tests

[VedRatan]

Description

This PR introduces the e2e tests for the separate adapters.

Fixes #95

Does this PR introduce a breaking change?

Checklist

• [x] PR title follows the <type>: <description> convention
• [ ] I use conventional commits in my commit messages
• [ ] I have updated the documentation accordingly
• [ ] I Keep It Small and Simple: The smaller the PR is, the easier it is to review and have it merged
• [ ] I have performed a self-review of my code
• [ ] I have added tests that prove my fix is effective or that my feature works
• [ ] New and existing unit tests pass locally with my changes

Additional information for reviewer

Mention if this PR is part of any design or a continuation of previous PRs