[feat] admin impersonate user (#3741)

tests/conftest.py

@@ -14,9 +14,9 @@ from lnbits.core.crud import (
     delete_account,
     get_account_by_username,
     get_payment,
+    get_user,
     update_payment,
 )
-from lnbits.core.crud.users import get_user_from_account
 from lnbits.core.models import Account, CreateInvoice, PaymentState, User
 from lnbits.core.models.users import UpdateSuperuserPassword
 from lnbits.core.services import create_user_account, update_wallet_balance
@@ -114,10 +114,10 @@ async def user_alan():
 
 @pytest.fixture(scope="session")
 async def admin_user():
-    username = "admin"
-    account = await get_account_by_username(username)
-    if account:
-        return await get_user_from_account(account)
+    username = "admin_" + uuid4().hex[:8]
+    user = await get_user(ADMIN_USER_ID)
+    if user:
+        return user
 
     account = Account(
         id=ADMIN_USER_ID,