test: move domain tests to tests/

Self dev-dep w/ test-helpers for domain::testing. Also moved social blanket-impl + InMemoryStore tests (public API only). No private-item exceptions.

crates/domain/tests/events/events_test.rs

@@ -0,0 +1,55 @@
+use domain::events::DomainEvent;
+use domain::value_objects::{FollowTarget, SocialIdentity, UserId};
+
+#[test]
+fn follow_accepted_matches() {
+    let uid = UserId::from_uuid(uuid::Uuid::new_v4());
+    let event = DomainEvent::FollowAccepted {
+        owner: uid.clone(),
+        requester: SocialIdentity::Remote {
+            actor_url: "https://remote.example/users/alice".to_string(),
+        },
+    };
+    let DomainEvent::FollowAccepted { requester, .. } = event else {
+        panic!("wrong variant");
+    };
+    assert_eq!(
+        requester,
+        SocialIdentity::Remote {
+            actor_url: "https://remote.example/users/alice".to_string()
+        }
+    );
+}
+
+#[test]
+fn follow_requested_with_identity() {
+    let follower = UserId::from_uuid(uuid::Uuid::new_v4());
+    let target = UserId::from_uuid(uuid::Uuid::new_v4());
+    let event = DomainEvent::FollowRequested {
+        follower: follower.clone(),
+        target: FollowTarget::Identity(SocialIdentity::Local(target.clone())),
+    };
+    assert!(matches!(
+        event,
+        DomainEvent::FollowRequested {
+            target: FollowTarget::Identity(SocialIdentity::Local(_)),
+            ..
+        }
+    ));
+}
+
+#[test]
+fn follow_requested_with_handle() {
+    let follower = UserId::from_uuid(uuid::Uuid::new_v4());
+    let event = DomainEvent::FollowRequested {
+        follower: follower.clone(),
+        target: FollowTarget::Handle("@alice@remote.example".into()),
+    };
+    assert!(matches!(
+        event,
+        DomainEvent::FollowRequested {
+            target: FollowTarget::Handle(_),
+            ..
+        }
+    ));
+}