feat: CRUD function and tests

Author: moaz-mokhtar

.env

@@ -17,3 +17,7 @@ POSTGRES_DB=driversdb
 DATABASE_URL=postgres://${POSTGRES_USER}:${POSTGRES_PASSWORD}@${POSTGRES_HOST}/${POSTGRES_DB}
 DATABASE_URL_INTERNAL=postgres://${POSTGRES_USER}:${POSTGRES_PASSWORD}@db/${POSTGRES_DB}
 
+# Test DB env vars
+DB_PORT_TEST=5433
+POSTGRES_DB_TEST=test_db
+DATABASE_URL_TEST=postgres://${POSTGRES_USER}:${POSTGRES_PASSWORD}@${POSTGRES_HOST}:${DB_PORT_TEST}/${POSTGRES_DB_TEST}