first commit

tests/unit/test_engine_semantics.py

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+from __future__ import annotations
+
+from sync_state_machine.engine.semantics import (
+    CoreBindingResult,
+    classify_core_pair,
+)
+
+
+def test_core_pair_and_event_mapping():
+    local, peer = classify_core_pair(
+        has_binding_record=True,
+        local_data={"id": "l1"},
+        peer_data={"id": "r1"},
+    )
+    assert (local, peer) == (CoreBindingResult.NORMAL, CoreBindingResult.NORMAL)
+
+    local2, peer2 = classify_core_pair(
+        has_binding_record=True,
+        local_data={"id": "l1"},
+        peer_data=None,
+    )
+    assert (local2, peer2) == (CoreBindingResult.WARNING, CoreBindingResult.ABNORMAL)