test: shared factories and command builders

crates/application/src/import/tests/create_session.rs

@@ -1,11 +1,12 @@
+use crate::test_support::create_import_session_command;
 use std::sync::Arc;
 
 use uuid::Uuid;
 
 use domain::testing::InMemoryImportSessionRepository;
 
+use crate::import::create_session;
 use crate::import::deps::CreateSessionDeps;
-use crate::import::{commands::CreateImportSessionCommand, create_session};
 use crate::test_helpers::TestContextBuilder;
 
 #[tokio::test]
@@ -20,11 +21,7 @@ async fn creates_session_with_parsed_file() {
 
     let result = create_session::execute(
         &deps,
-        CreateImportSessionCommand {
-            user_id: Uuid::new_v4(),
-            bytes: b"col1\nval1".to_vec(),
-            format: domain::models::FileFormat::Csv,
-        },
+        create_import_session_command(Uuid::new_v4(), b"col1\nval1"),
     )
     .await
     .unwrap();