feat: atomic goal, watchlist, profile writes

crates/application/tests/users/update_profile_test.rs

@@ -31,7 +31,7 @@ async fn register_user(b: &TestContextBuilder, users: &Arc<InMemoryStore>) -> Uu
 }
 
 #[tokio::test]
-async fn updates_display_name() {
+async fn updating_the_profile_records_the_change_and_its_event_together() {
     let users = InMemoryStore::new();
     let events = NoopEventPublisher::new();
     let b = TestContextBuilder::new()
@@ -54,12 +54,9 @@ async fn updates_display_name() {
     .await
     .unwrap();
 
-    let published = events.published();
-    assert!(
-        published
-            .iter()
-            .any(|e| matches!(e, DomainEvent::UserUpdated { .. }))
-    );
+    let recorded = users.recorded_events();
+    assert_eq!(recorded.len(), 1);
+    assert!(matches!(recorded[0], DomainEvent::UserUpdated { .. }));
 }
 
 #[tokio::test]
@@ -111,14 +108,15 @@ async fn uploads_avatar() {
     .await
     .unwrap();
 
-    let published = events.published();
     assert!(
-        published
+        users
+            .recorded_events()
             .iter()
             .any(|e| matches!(e, DomainEvent::UserUpdated { .. }))
     );
     assert!(
-        published
+        events
+            .published()
             .iter()
             .any(|e| matches!(e, DomainEvent::ImageStored { .. }))
     );
@@ -149,14 +147,15 @@ async fn uploads_banner() {
     .await
     .unwrap();
 
-    let published = events.published();
     assert!(
-        published
+        users
+            .recorded_events()
             .iter()
             .any(|e| matches!(e, DomainEvent::UserUpdated { .. }))
     );
     assert!(
-        published
+        events
+            .published()
             .iter()
             .any(|e| matches!(e, DomainEvent::ImageStored { .. }))
     );
@@ -232,16 +231,114 @@ async fn text_only_update_emits_user_updated_no_image_stored() {
     .await
     .unwrap();
 
-    let published = events.published();
     assert!(
-        published
+        users
+            .recorded_events()
             .iter()
             .any(|e| matches!(e, DomainEvent::UserUpdated { .. }))
     );
     assert!(
-        !published
+        !events
+            .published()
             .iter()
             .any(|e| matches!(e, DomainEvent::ImageStored { .. })),
         "text-only update should not emit ImageStored"
     );
 }
+
+#[tokio::test]
+async fn changing_also_known_as_records_the_move_with_the_update() {
+    let users = InMemoryStore::new();
+    let b = TestContextBuilder::new().with_users(Arc::clone(&users) as _);
+    let deps = UpdateProfileDeps {
+        user: b.user_repo.clone(),
+        object_storage: b.object_storage.clone(),
+        event_publisher: b.event_publisher.clone(),
+    };
+    let uid = register_user(&b, &users).await;
+
+    update_profile::execute(
+        &deps,
+        UpdateProfileCommand {
+            also_known_as: Some("https://other.example/users/alice".into()),
+            ..update_profile_command(uid)
+        },
+    )
+    .await
+    .unwrap();
+
+    let recorded = users.recorded_events();
+    assert_eq!(recorded.len(), 2);
+    assert!(matches!(recorded[0], DomainEvent::UserUpdated { .. }));
+    assert!(matches!(recorded[1], DomainEvent::UserAccountMoved { .. }));
+}
+
+/// Loads from the store but refuses the profile write.
+struct ProfileWriteRefusingUsers(Arc<InMemoryStore>);
+
+#[async_trait::async_trait]
+impl UserRepository for ProfileWriteRefusingUsers {
+    async fn find_by_email(
+        &self,
+        e: &domain::value_objects::Email,
+    ) -> Result<Option<domain::models::User>, domain::errors::DomainError> {
+        self.0.find_by_email(e).await
+    }
+    async fn find_by_username(
+        &self,
+        u: &domain::value_objects::Username,
+    ) -> Result<Option<domain::models::User>, domain::errors::DomainError> {
+        self.0.find_by_username(u).await
+    }
+    async fn save(&self, u: &domain::models::User) -> Result<(), domain::errors::DomainError> {
+        self.0.save(u).await
+    }
+    async fn find_by_id(
+        &self,
+        id: &domain::value_objects::UserId,
+    ) -> Result<Option<domain::models::User>, domain::errors::DomainError> {
+        self.0.find_by_id(id).await
+    }
+    async fn list_with_stats(
+        &self,
+    ) -> Result<Vec<domain::models::UserSummary>, domain::errors::DomainError> {
+        self.0.list_with_stats().await
+    }
+    async fn update_profile(
+        &self,
+        _: &domain::value_objects::UserId,
+        _: &domain::models::UserProfile,
+        _: &[DomainEvent],
+    ) -> Result<(), domain::errors::DomainError> {
+        Err(domain::errors::DomainError::InfrastructureError(
+            "refused".into(),
+        ))
+    }
+}
+
+#[tokio::test]
+async fn a_refused_profile_update_propagates_and_records_nothing() {
+    let users = InMemoryStore::new();
+    let b = TestContextBuilder::new().with_users(Arc::clone(&users) as _);
+    let uid = register_user(&b, &users).await;
+    let deps = UpdateProfileDeps {
+        user: Arc::new(ProfileWriteRefusingUsers(Arc::clone(&users))),
+        object_storage: b.object_storage.clone(),
+        event_publisher: b.event_publisher.clone(),
+    };
+
+    let result = update_profile::execute(
+        &deps,
+        UpdateProfileCommand {
+            display_name: Some("Alice W.".into()),
+            ..update_profile_command(uid)
+        },
+    )
+    .await;
+
+    assert!(matches!(
+        result,
+        Err(domain::errors::DomainError::InfrastructureError(m)) if m == "refused"
+    ));
+    assert!(users.recorded_events().is_empty());
+}