ai-agent-book 精选快照（<2MB 代码与文档，来自 github.com/bojieli/ai-agent-book）

chapter5/agent-creator/reference_agent/tests/test_domain_policy.py

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+from __future__ import annotations
+
+import json
+import sys
+from pathlib import Path
+
+sys.path.insert(0, str(Path(__file__).resolve().parents[1]))
+
+from domain_tools import execute_tool
+
+
+ROOT = Path(__file__).resolve().parents[1]
+
+
+def load_spec():
+    return json.loads((ROOT / "domain_spec.json").read_text(encoding="utf-8"))
+
+
+def record(spec, *, identifier, required, status, evidence):
+    return {
+        spec["identifier_field"]: identifier,
+        spec["required_field"]: required,
+        spec["status_field"]: status,
+        spec["evidence_field"]: evidence,
+    }
+
+
+def test_required_nonpassing_record_refuses_with_exact_evidence():
+    spec = load_spec()
+    records = [
+        record(
+            spec,
+            identifier="required-check",
+            required=True,
+            status="failed",
+            evidence="observed failure",
+        )
+    ]
+    result = execute_tool(spec["tool_name"], {spec["records_argument"]: records})
+    assert result["ok"] is True
+    assert result["result"]["approved"] is False
+    assert result["result"]["decision"] == spec["rejected_label"]
+    assert result["result"]["failed_required_records"][0]["evidence"] == "observed failure"
+
+
+def test_only_required_nonpassing_records_block_approval():
+    spec = load_spec()
+    passing = spec["passing_values"][0]
+    records = [
+        record(spec, identifier="required", required=True, status=passing, evidence="ok"),
+        record(spec, identifier="optional", required=False, status="failed", evidence="optional"),
+    ]
+    result = execute_tool(spec["tool_name"], {spec["records_argument"]: records})
+    assert result["ok"] is True
+    assert result["result"]["approved"] is True
+    assert result["result"]["decision"] == spec["approved_label"]
+
+
+def test_missing_or_empty_records_fail_closed():
+    spec = load_spec()
+    result = execute_tool(spec["tool_name"], {})
+    assert result["ok"] is False
+    assert spec["records_argument"] in result["error"]