Add first info to landing page

test/test_database.py

@@ -0,0 +1,19 @@
+from sqlalchemy import func, select
+
+from allmende_payment_system.database import ensure_user
+from allmende_payment_system.models import User
+
+
+def test_ensure_user(test_db):
+
+    user_info = {"username": "test", "display_name": "Test User"}
+    user = ensure_user(user_info, test_db)
+
+    assert user.username == "test"
+
+    test_db.commit()
+
+    assert test_db.scalar(select(func.count()).select_from(User)) == 1
+
+    user = ensure_user(user_info, test_db)
+    assert test_db.scalar(select(func.count()).select_from(User)) == 1