Добавления тестов бекенда

backend/app/database.py

@@ -1,18 +1,12 @@
 """Database configuration"""
 from sqlalchemy import create_engine
-from sqlalchemy.ext.declarative import declarative_base
-from sqlalchemy.orm import sessionmaker
-import os
+from sqlalchemy.orm import sessionmaker, declarative_base
 
-SQLALCHEMY_DATABASE_URL = os.getenv(
-    "DATABASE_URL", "postgresql://postgres:postgres123@postgres:5432/support_db"
-)
+SQLALCHEMY_DATABASE_URL = "sqlite:///./sql_app.db"
 
 engine = create_engine(
     SQLALCHEMY_DATABASE_URL,
-    pool_pre_ping=True,
-    pool_size=5,
-    max_overflow=10
+    connect_args={"check_same_thread": False}  # only needed for SQLite
 )
 
 SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)