Once #645, we will have the option of adding integration tests to the extension. This issue will keep a list of all the integration tests we want to create. And over time, we will implement all:

• AST Viewer works and displays some results
• Run Queries
  • Can run a query without crashing
  • Query can run and create a results web view that displays results
  • Can run a simple query and results are produced See Pass computeDefaultStrings to query server when compiling queries #694 (comment)
• View DIL
• View Logs
• databases
  • Add from folder
  • Add from archive
  • Add from LGTM
  • Add from URL
  • Remove from folder
  • Remove from archive
  • Remove from LGTM
  • Remove from URL
  • Also, test that the language is correctly guessed
• Compare queries shows some results

This is a continuation of #642.