init

crates/application/tests/user/change_password_test.rs

@@ -0,0 +1,67 @@
+use std::sync::Arc;
+
+use domain::ports::UserCommandPort;
+use domain::testing::{FakePasswordHasher, InMemoryStore};
+use domain::user::{Email, PasswordHash, User, Username};
+
+use application::user::commands::ChangePasswordCommand;
+use application::user::use_cases::change_password;
+
+async fn setup() -> (Arc<InMemoryStore>, change_password::Deps, User) {
+    let store = Arc::new(InMemoryStore::new());
+    let user = User::new(
+        Username::new("alice").unwrap(),
+        Email::new("alice@example.com").unwrap(),
+        PasswordHash::new("hashed:secret".into()),
+    );
+    store.save(&user).await.unwrap();
+
+    let deps = change_password::Deps {
+        user_command: store.clone(),
+        user_query: store.clone(),
+        password_hasher: Arc::new(FakePasswordHasher),
+    };
+
+    (store, deps, user)
+}
+
+#[tokio::test]
+async fn changes_password_with_correct_current() {
+    let (_store, deps, user) = setup().await;
+
+    let cmd = ChangePasswordCommand {
+        user_id: user.id().clone(),
+        current_password: "secret".into(),
+        new_password: "new-secret".into(),
+    };
+
+    change_password::execute(cmd, &deps).await.unwrap();
+}
+
+#[tokio::test]
+async fn rejects_wrong_current_password() {
+    let (_store, deps, user) = setup().await;
+
+    let cmd = ChangePasswordCommand {
+        user_id: user.id().clone(),
+        current_password: "wrong".into(),
+        new_password: "new-secret".into(),
+    };
+
+    let result = change_password::execute(cmd, &deps).await;
+    assert!(result.is_err());
+}
+
+#[tokio::test]
+async fn rejects_nonexistent_user() {
+    let (_store, deps, _user) = setup().await;
+
+    let cmd = ChangePasswordCommand {
+        user_id: domain::user::UserId::generate(),
+        current_password: "secret".into(),
+        new_password: "new-secret".into(),
+    };
+
+    let result = change_password::execute(cmd, &deps).await;
+    assert!(result.is_err());
+}