init

crates/application/tests/user/register_test.rs

@@ -0,0 +1,79 @@
+use std::sync::Arc;
+
+use domain::testing::{FakePasswordHasher, InMemoryStore};
+use domain::user::Username;
+
+use application::user::commands::RegisterCommand;
+use application::user::use_cases::register;
+
+fn deps() -> (Arc<InMemoryStore>, register::Deps) {
+    let store = Arc::new(InMemoryStore::new());
+    let deps = register::Deps {
+        user_command: store.clone(),
+        user_query: store.clone(),
+        activity_command: store.clone(),
+        password_hasher: Arc::new(FakePasswordHasher),
+        events: store.clone(),
+        preset: config::PresetConfig::default(),
+    };
+    (store, deps)
+}
+
+#[tokio::test]
+async fn registers_user_and_seeds_activities() {
+    let (store, deps) = deps();
+
+    let cmd = RegisterCommand {
+        username: Username::new("alice").unwrap(),
+        email: domain::user::Email::new("alice@example.com").unwrap(),
+        password: "secret123".into(),
+    };
+
+    let user = register::execute(cmd, &deps).await.unwrap();
+
+    assert_eq!(user.username().value(), "alice");
+    assert!(store.activity_count() > 0);
+    assert_eq!(store.published_events().len(), 1);
+}
+
+#[tokio::test]
+async fn rejects_duplicate_username() {
+    let (_, deps) = deps();
+
+    let cmd1 = RegisterCommand {
+        username: Username::new("alice").unwrap(),
+        email: domain::user::Email::new("alice@example.com").unwrap(),
+        password: "secret".into(),
+    };
+    register::execute(cmd1, &deps).await.unwrap();
+
+    let cmd2 = RegisterCommand {
+        username: Username::new("alice").unwrap(),
+        email: domain::user::Email::new("alice2@example.com").unwrap(),
+        password: "secret".into(),
+    };
+    let result = register::execute(cmd2, &deps).await;
+
+    assert!(result.is_err());
+}
+
+#[tokio::test]
+async fn rejects_duplicate_email() {
+    let (_, deps) = deps();
+
+    let cmd1 = RegisterCommand {
+        username: Username::new("alice").unwrap(),
+        email: domain::user::Email::new("alice@example.com").unwrap(),
+        password: "secret".into(),
+    };
+    register::execute(cmd1, &deps).await.unwrap();
+
+    let cmd2 = RegisterCommand {
+        username: Username::new("bob").unwrap(),
+        email: domain::user::Email::new("alice@example.com").unwrap(),
+        password: "secret".into(),
+    };
+    let result = register::execute(cmd2, &deps).await;
+
+    assert!(result.is_err());
+}