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

chapter10/parallel-web-research/test_exp104_validation_evidence.py

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+import json
+from pathlib import Path
+
+
+ROOT = Path(__file__).parent / "validation"
+
+
+def test_real_parallel_serial_evidence_closes_every_context_and_measures_speedup():
+    data = json.loads((ROOT / "real_parallel_serial_2026-07-29.json").read_text())
+    assert data["overall_status"] == "pass"
+    assert data["parallel"]["contexts_created"] == data["parallel"]["contexts_closed"] == 10
+    assert data["serial"]["contexts_created"] == data["serial"]["contexts_closed"] == 10
+    assert data["parallel"]["errors"] == {}
+    assert data["measured_speedup"] > 1
+
+
+def test_real_cascade_evidence_has_one_broadcast_all_acks_and_no_leaks():
+    data = json.loads((ROOT / "real_cascade_2026-07-29.json").read_text())
+    assert data["terminate_broadcasts"] == 1
+    assert len(data["loser_acknowledgements"]) == data["workers"] - 1
+    assert data["contexts_created"] == data["contexts_closed"]
+    assert data["errors"] == {}