refactor: 重构 Agent 模块为 AgentScope，删除旧版 CrewAI/LiteLLM 实现

backend/tests/unit/core/agentscope/schemas/test_agui_input.py

@@ -0,0 +1,96 @@
+from __future__ import annotations
+
+import pytest
+
+from core.agentscope.schemas.agui_input import (
+    MAX_MESSAGES,
+    MAX_RUN_ID_LENGTH,
+    MAX_RUN_INPUT_BYTES,
+    MAX_TEXT_CHARS,
+    extract_latest_tool_result,
+    parse_run_input,
+    validate_run_request_messages_contract,
+)
+
+
+def _base_payload() -> dict[str, object]:
+    return {
+        "threadId": "00000000-0000-0000-0000-000000000001",
+        "runId": "run-1",
+        "state": {},
+        "messages": [{"id": "u1", "role": "user", "content": "hello"}],
+        "tools": [],
+        "context": [],
+        "forwardedProps": {},
+    }
+
+
+def test_parse_run_input_rejects_invalid_uuid() -> None:
+    payload = _base_payload()
+    payload["threadId"] = "bad-uuid"
+
+    with pytest.raises(ValueError, match="threadId must be a valid UUID"):
+        parse_run_input(payload)
+
+
+def test_parse_run_input_rejects_message_count_over_limit() -> None:
+    payload = _base_payload()
+    payload["messages"] = [
+        {"id": f"u{i}", "role": "user", "content": "x"} for i in range(MAX_MESSAGES + 1)
+    ]
+
+    with pytest.raises(ValueError, match="RunAgentInput.messages exceeds limit"):
+        parse_run_input(payload)
+
+
+def test_parse_run_input_rejects_user_text_over_limit() -> None:
+    payload = _base_payload()
+    payload["messages"] = [
+        {"id": "u1", "role": "user", "content": "x" * (MAX_TEXT_CHARS + 1)}
+    ]
+
+    with pytest.raises(
+        ValueError, match="RunAgentInput user message text exceeds limit"
+    ):
+        parse_run_input(payload)
+
+
+def test_parse_run_input_rejects_payload_over_limit() -> None:
+    payload = _base_payload()
+    payload["forwardedProps"] = {"blob": "x" * MAX_RUN_INPUT_BYTES}
+
+    with pytest.raises(ValueError, match="RunAgentInput payload exceeds size limit"):
+        parse_run_input(payload)
+
+
+def test_parse_run_input_rejects_run_id_over_limit() -> None:
+    payload = _base_payload()
+    payload["runId"] = "r" * (MAX_RUN_ID_LENGTH + 1)
+
+    with pytest.raises(ValueError, match="runId exceeds length limit"):
+        parse_run_input(payload)
+
+
+def test_extract_latest_tool_result_requires_tool_call_id() -> None:
+    run_input = parse_run_input(_base_payload())
+
+    with pytest.raises(
+        ValueError,
+        match="RunAgentInput.messages requires a tool message with toolCallId for resume",
+    ):
+        extract_latest_tool_result(run_input)
+
+
+def test_validate_run_request_messages_contract_requires_single_user_message() -> None:
+    payload = _base_payload()
+    payload["messages"] = [
+        {"id": "u1", "role": "user", "content": "hello"},
+        {"id": "u2", "role": "user", "content": "again"},
+    ]
+    run_input = parse_run_input(payload)
+
+    with pytest.raises(
+        ValueError,
+        match="RunAgentInput.messages must contain exactly one user message",
+    ):
+        validate_run_request_messages_contract(run_input)