v0.3.9-pre.002

crates/ksp-worker-api/unit_tests/snapshot.rs

@@ -0,0 +1,66 @@
+// file: crates/ksp-worker-api/unit_tests/snapshot.rs
+// version: 1
+
+#[test]
+fn pre_002_snapshot_sequence_advances_strictly_and_orders_positions() {
+    let first = crate::WorkerSnapshotSequence::initial();
+    assert_eq!(first.value(), 0);
+    let second = first.next();
+    assert!(second.is_ok());
+    let second = match second {
+        std::result::Result::Ok(value) => value,
+        std::result::Result::Err(_) => return,
+    };
+    assert_eq!(second.value(), 1);
+    assert!(second.is_after(first));
+    assert!(!first.is_after(second));
+    assert!(!first.is_after(first));
+    return;
+}
+
+#[test]
+fn pre_002_snapshot_sequence_exhaustion_is_explicit_and_non_wrapping() {
+    let exhausted = super::exhausted_snapshot_sequence();
+    let result = exhausted.next();
+    assert!(result.is_err());
+    let error = match result {
+        std::result::Result::Err(value) => value,
+        std::result::Result::Ok(_) => return,
+    };
+    assert_eq!(error.code(), crate::ERROR_CODE_WORKER_SNAPSHOT_SEQUENCE_EXHAUSTED);
+    assert_eq!(error.context().len(), 1);
+    assert_eq!(error.context()[0].key(), "sequence");
+    assert_eq!(error.context()[0].value(), u64::MAX.to_string());
+    return;
+}
+
+#[test]
+fn pre_002_snapshot_preserves_exact_common_dimensions() {
+    let id = crate::WorkerId::new("worker-001");
+    let kind = crate::WorkerKindCode::new("example_worker");
+    assert!(id.is_ok());
+    assert!(kind.is_ok());
+    let id = match id {
+        std::result::Result::Ok(value) => value,
+        std::result::Result::Err(_) => return,
+    };
+    let kind = match kind {
+        std::result::Result::Ok(value) => value,
+        std::result::Result::Err(_) => return,
+    };
+    let snapshot = crate::WorkerSnapshot::new(
+        id,
+        kind,
+        crate::WorkerSnapshotSequence::initial(),
+        crate::WorkerState::Running,
+        crate::WorkerHealth::Healthy,
+        crate::WorkerActivity::Active,
+    );
+    assert_eq!(snapshot.id().as_str(), "worker-001");
+    assert_eq!(snapshot.kind().as_str(), "example_worker");
+    assert_eq!(snapshot.sequence().value(), 0);
+    assert_eq!(snapshot.state(), crate::WorkerState::Running);
+    assert_eq!(snapshot.health(), crate::WorkerHealth::Healthy);
+    assert_eq!(snapshot.activity(), crate::WorkerActivity::Active);
+    return;
+}