domain: add Storage & Sources entities (StorageVolume, LibraryPath, IngestSession, Quota)

crates/domain/tests/entities/ingest_session.rs

@@ -0,0 +1,49 @@
+use domain::entities::{IngestSession, IngestStatus};
+use domain::errors::DomainError;
+use domain::value_objects::{Checksum, SystemId};
+
+fn make_session() -> IngestSession {
+    let checksum = Checksum::new("a".repeat(64)).unwrap();
+    IngestSession::new(
+        SystemId::new(),
+        "device-1",
+        "photo.jpg",
+        checksum,
+        SystemId::new(),
+    )
+}
+
+#[test]
+fn valid_state_transitions() {
+    let mut s = make_session();
+    assert_eq!(s.status, IngestStatus::Uploading);
+    s.advance_to(IngestStatus::AwaitingProcessing).unwrap();
+    assert_eq!(s.status, IngestStatus::AwaitingProcessing);
+    s.advance_to(IngestStatus::Processing).unwrap();
+    assert_eq!(s.status, IngestStatus::Processing);
+    s.advance_to(IngestStatus::Completed).unwrap();
+    assert_eq!(s.status, IngestStatus::Completed);
+}
+
+#[test]
+fn invalid_transition_rejected() {
+    let mut s = make_session();
+    let result = s.advance_to(IngestStatus::Completed);
+    assert!(matches!(result, Err(DomainError::Validation(_))));
+}
+
+#[test]
+fn can_fail_from_any_non_terminal() {
+    for target in [IngestStatus::Uploading, IngestStatus::AwaitingProcessing, IngestStatus::Processing] {
+        let mut s = make_session();
+        // advance to target state
+        if target == IngestStatus::AwaitingProcessing || target == IngestStatus::Processing {
+            s.advance_to(IngestStatus::AwaitingProcessing).unwrap();
+        }
+        if target == IngestStatus::Processing {
+            s.advance_to(IngestStatus::Processing).unwrap();
+        }
+        s.advance_to(IngestStatus::Failed).unwrap();
+        assert_eq!(s.status, IngestStatus::Failed);
+    }
+}