Use mock response for basic geojson test

Author: dericke

.gitignore

@@ -1,5 +1,7 @@
 .DS_Store
+.idea/
 .pytest_cache/
+.vscode/
 **/__pycache__/
 *.py[cod]
 dist/
@@ -11,4 +13,4 @@ eggs/
 pip-log.txt
 docs/_build/
 Pipfile.lock
-venv/
+venv/