286 lines
11 KiB
Python
286 lines
11 KiB
Python
"""Tests for Pipeline reflection-replanning (U4)."""
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import pytest
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from agentkit.orchestrator.pipeline_engine import PipelineEngine
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from agentkit.orchestrator.pipeline_schema import (
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AdaptiveConfig,
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Pipeline,
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PipelineResult,
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PipelineStage,
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ReflectionReport,
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StageResult,
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StageStatus,
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)
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from agentkit.orchestrator.reflection import PipelineReflector, PipelineReplanner
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# ── Test Helpers ──────────────────────────────────────────
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def _make_pipeline(
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stages: list[dict] | None = None,
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name: str = "test_pipeline",
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) -> Pipeline:
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"""Build a Pipeline from simple stage dicts."""
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if stages is None:
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stages = [
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{"name": "step1", "agent": "agent_a", "action": "do_thing"},
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{"name": "step2", "agent": "agent_b", "action": "do_other"},
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]
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pipeline_stages = [PipelineStage(**s) for s in stages]
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return Pipeline(
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name=name,
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version="1.0",
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description="Test pipeline",
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stages=pipeline_stages,
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)
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def _make_failed_result(
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pipeline_name: str = "test_pipeline",
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failed_stage: str = "step2",
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error_message: str = "Connection timeout after 300s",
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completed_stages: dict[str, dict] | None = None,
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) -> PipelineResult:
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"""Build a failed PipelineResult."""
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stage_results = {}
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if completed_stages:
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for name, output in completed_stages.items():
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stage_results[name] = StageResult(
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stage_name=name,
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status=StageStatus.COMPLETED,
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output_data=output,
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)
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stage_results[failed_stage] = StageResult(
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stage_name=failed_stage,
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status=StageStatus.FAILED,
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error_message=error_message,
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)
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return PipelineResult(
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pipeline_name=pipeline_name,
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status=StageStatus.FAILED,
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stage_results=stage_results,
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error_message=f"Stage '{failed_stage}' failed",
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)
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# ── PipelineReflector Tests ──────────────────────────────
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class TestPipelineReflector:
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@pytest.mark.asyncio
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async def test_rule_based_timeout_reflection(self):
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"""Timeout errors should be classified as 'timeout'."""
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reflector = PipelineReflector()
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pipeline = _make_pipeline()
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result = _make_failed_result(error_message="Timeout after 300s")
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report = await reflector.reflect(pipeline, result)
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assert report.failure_type == "timeout"
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assert "step2" in report.root_cause
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assert "timeout" in report.suggested_fix.lower()
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@pytest.mark.asyncio
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async def test_rule_based_resource_error_reflection(self):
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"""Not-found errors should be classified as 'resource_error'."""
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reflector = PipelineReflector()
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pipeline = _make_pipeline()
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result = _make_failed_result(error_message="Resource not found: database")
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report = await reflector.reflect(pipeline, result)
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assert report.failure_type == "resource_error"
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@pytest.mark.asyncio
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async def test_rule_based_input_error_reflection(self):
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"""Validation errors should be classified as 'input_error'."""
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reflector = PipelineReflector()
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pipeline = _make_pipeline()
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result = _make_failed_result(error_message="Invalid input: missing field 'name'")
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report = await reflector.reflect(pipeline, result)
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assert report.failure_type == "input_error"
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@pytest.mark.asyncio
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async def test_rule_based_logic_error_reflection(self):
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"""Generic errors should be classified as 'logic_error'."""
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reflector = PipelineReflector()
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pipeline = _make_pipeline()
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result = _make_failed_result(error_message="Unexpected state transition")
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report = await reflector.reflect(pipeline, result)
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assert report.failure_type == "logic_error"
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@pytest.mark.asyncio
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async def test_reflection_report_fields(self):
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"""ReflectionReport should contain all required fields."""
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reflector = PipelineReflector()
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pipeline = _make_pipeline()
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result = _make_failed_result(error_message="Timeout")
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report = await reflector.reflect(pipeline, result, reflection_number=2)
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assert report.failed_stage == "step2"
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assert report.reflection_number == 2
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assert report.root_cause
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assert report.suggested_fix
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@pytest.mark.asyncio
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async def test_reflection_with_completed_outputs(self):
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"""Reflector should handle completed stage outputs correctly."""
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reflector = PipelineReflector()
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pipeline = _make_pipeline()
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result = _make_failed_result(
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error_message="Error",
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completed_stages={"step1": {"data": "value"}},
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)
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report = await reflector.reflect(pipeline, result)
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assert report.failed_stage == "step2"
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# ── PipelineReplanner Tests ──────────────────────────────
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class TestPipelineReplanner:
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@pytest.mark.asyncio
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async def test_replan_preserves_completed_stages(self):
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"""Replanned pipeline should keep completed stages unchanged."""
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replanner = PipelineReplanner()
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pipeline = _make_pipeline()
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result = _make_failed_result(
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completed_stages={"step1": {"data": "ok"}},
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)
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report = ReflectionReport(
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failure_type="timeout",
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root_cause="Step timed out",
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suggested_fix="Increase timeout",
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failed_stage="step2",
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)
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new_pipeline = await replanner.replan(pipeline, result, report)
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assert len(new_pipeline.stages) == 2
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assert new_pipeline.stages[0].name == "step1"
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@pytest.mark.asyncio
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async def test_replan_adjusts_timeout_stage(self):
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"""Timeout failure should increase timeout_seconds on the failed stage."""
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replanner = PipelineReplanner()
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pipeline = _make_pipeline([
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{"name": "step1", "agent": "a", "action": "do"},
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{"name": "step2", "agent": "b", "action": "do", "timeout_seconds": 300},
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])
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result = _make_failed_result(error_message="Timeout after 300s")
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report = ReflectionReport(
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failure_type="timeout",
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root_cause="Timeout",
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suggested_fix="Increase timeout",
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failed_stage="step2",
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)
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new_pipeline = await replanner.replan(pipeline, result, report)
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failed_stage = next(s for s in new_pipeline.stages if s.name == "step2")
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assert failed_stage.timeout_seconds == 600 # doubled
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assert failed_stage.retry_policy is not None
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@pytest.mark.asyncio
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async def test_replan_resource_error_sets_continue_on_failure(self):
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"""Resource error should set continue_on_failure on the failed stage."""
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replanner = PipelineReplanner()
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pipeline = _make_pipeline()
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result = _make_failed_result(error_message="Not found")
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report = ReflectionReport(
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failure_type="resource_error",
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root_cause="Resource missing",
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suggested_fix="Skip and continue",
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failed_stage="step2",
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)
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new_pipeline = await replanner.replan(pipeline, result, report)
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failed_stage = next(s for s in new_pipeline.stages if s.name == "step2")
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assert failed_stage.continue_on_failure is True
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@pytest.mark.asyncio
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async def test_replan_name_includes_replanned(self):
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"""Replanned pipeline name should indicate it was replanned."""
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replanner = PipelineReplanner()
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pipeline = _make_pipeline()
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result = _make_failed_result()
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report = ReflectionReport(
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failure_type="logic_error",
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root_cause="Bad logic",
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suggested_fix="Fix logic",
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failed_stage="step2",
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)
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new_pipeline = await replanner.replan(pipeline, result, report)
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assert "replanned" in new_pipeline.name
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# ── PipelineEngine Adaptive Integration Tests ────────────
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class TestPipelineEngineAdaptive:
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@pytest.mark.asyncio
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async def test_adaptive_disabled_no_reflection(self):
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"""When adaptive is disabled, failed pipeline returns as-is."""
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engine = PipelineEngine() # dry-run mode
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pipeline = _make_pipeline([
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{"name": "fail_step", "agent": "a", "action": "fail",
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"continue_on_failure": False},
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])
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# In dry-run mode, stages succeed. We need to simulate failure.
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# Use a pipeline that will fail due to circular dependency.
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# Actually, let's test with a simpler approach: verify that
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# without adaptive_config, the result is returned directly.
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result = await engine.execute(pipeline)
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# Dry-run succeeds, so no reflection needed
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assert result.status == StageStatus.COMPLETED
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@pytest.mark.asyncio
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async def test_adaptive_enabled_triggers_reflection_on_failure(self):
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"""When adaptive is enabled and pipeline fails, reflection should trigger."""
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engine = PipelineEngine() # dry-run mode
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# Create a pipeline that will fail due to circular dependency
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pipeline = _make_pipeline([
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{"name": "step1", "agent": "a", "action": "do",
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"depends_on": ["step2"]},
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{"name": "step2", "agent": "b", "action": "do",
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"depends_on": ["step1"]},
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])
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config = AdaptiveConfig(enabled=True, max_reflections=2)
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result = await engine.execute(pipeline, adaptive_config=config)
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# Circular dependency causes immediate failure
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assert result.status == StageStatus.FAILED
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# No reflections because the pipeline fails before any stage runs
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# (topological sort fails)
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@pytest.mark.asyncio
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async def test_adaptive_config_default_disabled(self):
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"""AdaptiveConfig default should have enabled=False."""
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config = AdaptiveConfig()
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assert config.enabled is False
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assert config.max_reflections == 3
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@pytest.mark.asyncio
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async def test_pipeline_result_metadata_field(self):
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"""PipelineResult should have metadata field for reflection tracking."""
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result = PipelineResult(pipeline_name="test")
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assert result.metadata == {}
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@pytest.mark.asyncio
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async def test_reflection_report_model_dump(self):
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"""ReflectionReport should be serializable via model_dump."""
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report = ReflectionReport(
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failure_type="timeout",
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root_cause="Timed out",
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suggested_fix="Increase timeout",
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failed_stage="step1",
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reflection_number=1,
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)
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data = report.model_dump()
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assert data["failure_type"] == "timeout"
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assert data["reflection_number"] == 1
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