code refactor

Reviewed-on: #26

crates/application/tests/users/update_profile_fields_test.rs

@@ -0,0 +1,89 @@
+use crate::support::TestContextBuilder;
+use std::sync::Arc;
+
+use domain::events::DomainEvent;
+use domain::models::ProfileField;
+use domain::testing::{InMemoryStore, RefusingProfileFieldsRepository};
+use uuid::Uuid;
+
+use application::users::{
+    commands::UpdateProfileFieldsCommand, deps::UpdateProfileFieldsDeps, update_profile_fields,
+};
+
+#[tokio::test]
+async fn saving_profile_fields_records_the_change_and_its_event_together() {
+    let fields_repo = InMemoryStore::new();
+    let deps = UpdateProfileFieldsDeps {
+        profile_fields: Arc::clone(&fields_repo) as _,
+    };
+
+    update_profile_fields::execute(
+        &deps,
+        UpdateProfileFieldsCommand {
+            user_id: Uuid::nil(),
+            fields: vec![
+                ProfileField {
+                    name: "Website".into(),
+                    value: "https://example.com".into(),
+                },
+                ProfileField {
+                    name: "Location".into(),
+                    value: "Berlin".into(),
+                },
+            ],
+        },
+    )
+    .await
+    .unwrap();
+
+    let recorded = fields_repo.recorded_events();
+    assert_eq!(recorded.len(), 1);
+    assert!(matches!(recorded[0], DomainEvent::UserUpdated { .. }));
+}
+
+#[tokio::test]
+async fn rejects_more_than_four_fields() {
+    let b = TestContextBuilder::new();
+    let deps = UpdateProfileFieldsDeps {
+        profile_fields: b.profile_fields_repo.clone(),
+    };
+
+    let fields: Vec<ProfileField> = (0..5)
+        .map(|i| ProfileField {
+            name: format!("field{i}"),
+            value: format!("val{i}"),
+        })
+        .collect();
+
+    let result = update_profile_fields::execute(
+        &deps,
+        UpdateProfileFieldsCommand {
+            user_id: Uuid::nil(),
+            fields,
+        },
+    )
+    .await;
+
+    assert!(result.is_err());
+}
+
+#[tokio::test]
+async fn refused_profile_fields_propagate_and_record_nothing() {
+    let deps = UpdateProfileFieldsDeps {
+        profile_fields: Arc::new(RefusingProfileFieldsRepository),
+    };
+
+    let result = update_profile_fields::execute(
+        &deps,
+        UpdateProfileFieldsCommand {
+            user_id: Uuid::nil(),
+            fields: vec![],
+        },
+    )
+    .await;
+
+    assert!(matches!(
+        result,
+        Err(domain::errors::DomainError::InfrastructureError(m)) if m == "refused"
+    ));
+}