#517 spatialData references tests

Merge Request

💣 Breaking Changes

🥅 Description

This MR adds Unittests for the spatial data refereneces aswell as an integrationtest.

📷 Screenshot

📓 Checklist

• The code compiles without any warnings.
• I followed the code review checklist.
• The documentation has been added/updated.

🔗 Related Issues

• Related #449 (closed)
• Closes #517 (closed)

Closes #517 (closed)