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import pytest

from aegis.agents import EvaluatorAgent
from aegis.core import AgentContext, AgentResult, Task


def make_context(result: AgentResult | dict[str, object] | None) -> AgentContext:
    inputs: dict[str, object] = {}

    if result is not None:
        inputs["result"] = result.model_dump() if isinstance(result, AgentResult) else result

    return AgentContext(
        task=Task(
            name="Evaluate result",
            description="Evaluate an agent execution result.",
        ),
        inputs=inputs,
    )


@pytest.mark.asyncio
async def test_evaluator_passes_valid_result() -> None:
    evaluator = EvaluatorAgent()
    context = make_context(
        AgentResult(
            agent_name="planner",
            success=True,
            output={"steps": ["analyze", "execute"]},
        )
    )

    result = await evaluator.run(context)

    assert result.success is True
    assert result.output["passed"] is True
    assert result.output["score"] == 100
    assert result.output["issues"] == ()
    assert result.output["evaluated_agent"] == "planner"


@pytest.mark.asyncio
async def test_evaluator_fails_unsuccessful_result() -> None:
    evaluator = EvaluatorAgent()
    context = make_context(
        AgentResult(
            agent_name="tool",
            success=False,
            errors=["Execution failed."],
        )
    )

    result = await evaluator.run(context)

    assert result.success is True
    assert result.output["passed"] is False
    assert result.output["score"] == 25
    assert len(result.output["issues"]) == 3


@pytest.mark.asyncio
async def test_evaluator_rejects_missing_result() -> None:
    evaluator = EvaluatorAgent()
    context = make_context(None)

    result = await evaluator.run(context)

    assert result.success is False
    assert result.errors == ["Missing required input: result"]


@pytest.mark.asyncio
async def test_evaluator_rejects_invalid_result() -> None:
    evaluator = EvaluatorAgent()
    context = make_context(
        {
            "agent_name": "",
            "success": True,
        }
    )

    result = await evaluator.run(context)

    assert result.success is False
    assert result.errors
    assert result.errors[0].startswith("Invalid agent result:")