Squash Odysseus development history

tests/test_mcp_common_truncate.py

@@ -0,0 +1,17 @@
+"""Canonical _truncate must tolerate non-string input (regression).
+
+Originally this tested mcp_servers/_common.py's copy, which was deleted
+since it had zero callers. Now it tests the canonical version.
+"""
+
+from src.tool_utils import _truncate
+
+def test_truncate_handles_none_and_nonstring():
+    assert _truncate(None) == ""       # pyright: ignore[reportArgumentType]
+    assert _truncate(12345) == "12345" # pyright: ignore[reportArgumentType]
+
+
+def test_truncate_string_behaviour_unchanged():
+    assert _truncate("hello", limit=100) == "hello"
+    out = _truncate("x" * 50, limit=10)
+    assert out.startswith("x" * 10) and "truncated" in out