Add initial tests for /projects/:project

[JerryHue]

Issue This PR Addresses

Fixes #2828

Type of Change

• Bugfix: Change which fixes an issue
• New Feature: Change which adds functionality
• Documentation Update: Change which improves documentation
• UI: Change which improves UI
• Test: Change that adds a new test case

Description

This PR adds some test cases to the route /projects/:project/ in the dependency-discovery.

Steps to test the PR

You may let CI do the checks, but if you want to be sure:

1. Pull my changes.
2. Run the specific tests: pnpm run jest dependency.test.js.

Checklist

• Quality: This PR builds and passes our npm test and works locally
• Tests: This PR includes thorough tests or an explanation of why it does not
• Screenshots: This PR includes screenshots or GIFs of the changes made or an explanation of why it does not (if applicable)
• Documentation: This PR includes updated/added documentation to user exposed functionality or configuration variables are added/changed or an explanation of why it does not(if applicable)

[gitpod-io]