Squash Odysseus development history

tests/test_interrupted_thinking_context.py

@@ -0,0 +1,38 @@
+from core.models import ChatMessage, Session
+
+
+def _session(history):
+    return Session(
+        id="resume-thinking",
+        name="",
+        endpoint_url="http://example.test/v1",
+        model="thinking-model",
+        history=history,
+    )
+
+
+def test_latest_interrupted_thinking_is_replayed_for_resume():
+    session = _session([
+        ChatMessage("user", "Solve this"),
+        ChatMessage(
+            "assistant",
+            "",
+            metadata={"stopped": True, "thinking": "partial chain"},
+        ),
+        ChatMessage("user", "Continue from where you left off."),
+    ])
+
+    messages = session.get_context_messages()
+    assert messages[1]["reasoning_content"] == "partial chain"
+
+
+def test_old_interrupted_thinking_is_not_replayed_past_newer_assistant_turn():
+    session = _session([
+        ChatMessage("assistant", "", metadata={"stopped": True, "thinking": "old chain"}),
+        ChatMessage("user", "Try something else"),
+        ChatMessage("assistant", "New answer"),
+        ChatMessage("user", "Continue"),
+    ])
+
+    messages = session.get_context_messages()
+    assert "reasoning_content" not in messages[0]