As a developer,
I want to test data acquisition methods
so that I know they work.

As a statistician,
I want the data acquisition methods tested
so that I can trust the data acquired, and draw accurate conclusions.

Acceptance Criteria:

• Create test database, which matches database structure, and includes a few mock Wikibases
• Test create observations: Connectivity, Log, Property Popularity, Quantity, User, Version
• Mock relevant data pulls; do actually insert data into test database.

TESTING INSERTED DATA OUT OF SCOPE - WILL CHECK BY TESTING QUERIES IN SUBSEQUENT TICKET.