"""
Comprehensive tests for Phase 3 integration.

This module tests the complete Phase 3 integration layer including:
- Phase3IntegrationOrchestrator: Unified API and component lifecycle management
- IntegrationValidator: Cross-component integration testing
- ProductionReadinessChecker: Comprehensive readiness assessment
- IntegrationReporter: Comprehensive reporting capabilities

The tests verify:
- All components integrate properly
- System works end-to-end
- Performance meets targets
- Production deployment succeeds
"""

import threading
import time
import uuid
from datetime import datetime
from typing import Any, Dict, List
from unittest.mock import MagicMock, Mock, patch

import pytest

# Import the Phase 3 integration components
from chunker.integration.phase3_integration import (
    IntegrationError,
    IntegrationReporter,
    IntegrationValidator,
    Phase3IntegrationOrchestrator,
    ProductionReadinessChecker,
    ReadinessError,
    ReportingError,
    ValidationError,
)


class TestPhase3IntegrationOrchestrator:
    """Test suite for Phase3IntegrationOrchestrator."""

    @pytest.fixture
    def orchestrator(self):
        """Create a Phase3IntegrationOrchestrator instance for testing."""
        return Phase3IntegrationOrchestrator()

    def test_initialization(self, orchestrator):
        """Test proper initialization of the orchestrator."""
        assert orchestrator is not None
        assert hasattr(orchestrator, "performance_manager")
        assert hasattr(orchestrator, "system_optimizer")
        assert hasattr(orchestrator, "validation_manager")
        assert hasattr(orchestrator, "production_deployer")
        assert hasattr(orchestrator, "monitoring_system")
        assert hasattr(orchestrator, "_lock")
        assert hasattr(orchestrator, "integration_state")
        assert orchestrator.integration_state["status"] == "initialized"
        assert "initialization_time" in orchestrator.integration_state
        assert "components" in orchestrator.integration_state
        assert "metrics" in orchestrator.integration_state

    def test_initialize_integration(self, orchestrator):
        """Test integration initialization process."""
        result = orchestrator.initialize_integration()

        assert "status" in result
        assert result["status"] in ["success", "partial", "failed"]
        assert "timestamp" in result
        assert "initialized_components" in result
        assert "failed_components" in result
        assert "metrics" in result

        # Verify state update
        assert orchestrator.integration_state["status"] in [
            "ready",
            "degraded",
            "failed",
        ]

    def test_start_integrated_system(self, orchestrator):
        """Test starting the integrated system."""
        # Initialize first
        init_result = orchestrator.initialize_integration()

        if init_result["status"] in ["success", "partial"]:
            start_result = orchestrator.start_integrated_system()

            assert "status" in start_result
            assert start_result["status"] in ["running", "degraded", "failed"]
            assert "timestamp" in start_result
            assert "started_components" in start_result
            assert "system_info" in start_result

            # Verify state update
            assert orchestrator.integration_state["status"] in [
                "running",
                "degraded",
                "failed",
            ]

    def test_optimize_integrated_system(self, orchestrator):
        """Test system optimization process."""
        # Initialize and start system first
        orchestrator.initialize_integration()
        orchestrator.start_integrated_system()

        optimization_result = orchestrator.optimize_integrated_system()

        assert "status" in optimization_result
        assert optimization_result["status"] in [
            "optimized",
            "partially_optimized",
            "failed",
        ]
        assert "timestamp" in optimization_result
        assert "optimizations_applied" in optimization_result
        assert "performance_improvements" in optimization_result

        # Check for optimization metrics
        if optimization_result["status"] in ["optimized", "partially_optimized"]:
            assert isinstance(optimization_result["optimizations_applied"], list)
            assert len(optimization_result["optimizations_applied"]) >= 0

    def test_get_system_health(self, orchestrator):
        """Test system health monitoring."""
        health_result = orchestrator.get_system_health()

        assert "overall_status" in health_result
        assert health_result["overall_status"] in [
            "healthy",
            "degraded",
            "unhealthy",
            "critical",
        ]
        assert "timestamp" in health_result
        assert "components" in health_result
        assert "system_metrics" in health_result

        # Verify component health information
        components = health_result["components"]
        assert isinstance(components, dict)

        for component_name, component_health in components.items():
            assert "status" in component_health
            assert component_health["status"] in [
                "healthy",
                "degraded",
                "unhealthy",
                "error",
            ]

    def test_shutdown_integration(self, orchestrator):
        """Test graceful shutdown of the integrated system."""
        # Initialize and start system first
        orchestrator.initialize_integration()
        orchestrator.start_integrated_system()

        shutdown_result = orchestrator.shutdown_integration()

        assert "status" in shutdown_result
        assert shutdown_result["status"] in ["shutdown", "partial_shutdown", "failed"]
        assert "timestamp" in shutdown_result
        assert "shutdown_components" in shutdown_result

        # Verify state update
        assert orchestrator.integration_state["status"] in ["stopped", "degraded"]

    def test_thread_safety(self, orchestrator):
        """Test thread safety of orchestrator operations."""
        results = []
        exceptions = []

        def worker():
            try:
                result = orchestrator.get_system_health()
                results.append(result)
            except Exception as e:
                exceptions.append(e)

        # Create multiple threads
        threads = []
        for i in range(5):
            thread = threading.Thread(target=worker)
            threads.append(thread)

        # Start all threads
        for thread in threads:
            thread.start()

        # Wait for all threads to complete
        for thread in threads:
            thread.join()

        # Verify no exceptions occurred
        assert (
            len(exceptions) == 0
        ), f"Thread safety test failed with exceptions: {exceptions}"

        # Verify all results are valid
        assert len(results) == 5
        for result in results:
            assert "overall_status" in result
            assert "timestamp" in result

    @patch("chunker.integration.phase3_integration.PerformanceManager")
    def test_performance_manager_integration(
        self,
        mock_performance_manager,
        orchestrator,
    ):
        """Test integration with PerformanceManager."""
        mock_instance = Mock()
        mock_performance_manager.return_value = mock_instance
        mock_instance.start_monitoring.return_value = True
        mock_instance.collect_system_metrics.return_value = Mock(
            component_name="test",
            metrics={},
            optimization_potential=0.1,
        )

        # Re-initialize orchestrator with mock
        orchestrator.performance_manager = mock_instance

        result = orchestrator.initialize_integration()

        # Verify PerformanceManager was called
        assert mock_instance.start_monitoring.called

    @patch("chunker.integration.phase3_integration.ProductionDeployer")
    def test_production_deployer_integration(self, mock_deployer, orchestrator):
        """Test integration with ProductionDeployer."""
        mock_instance = Mock()
        mock_deployer.return_value = mock_instance
        mock_instance.validate_deployment.return_value = {"status": "healthy"}

        # Re-initialize orchestrator with mock
        orchestrator.production_deployer = mock_instance

        health = orchestrator.get_system_health()

        # Verify health information includes deployment status
        assert "components" in health


class TestIntegrationValidator:
    """Test suite for IntegrationValidator."""

    @pytest.fixture
    def validator(self):
        """Create an IntegrationValidator instance for testing."""
        return IntegrationValidator()

    def test_initialization(self, validator):
        """Test proper initialization of the validator."""
        assert validator is not None
        assert hasattr(validator, "validation_history")
        assert hasattr(validator, "performance_baselines")
        assert hasattr(validator, "_lock")
        assert isinstance(validator.validation_history, list)
        assert isinstance(validator.performance_baselines, dict)

    def test_validate_component_integration(self, validator):
        """Test component integration validation."""
        component_a = "performance_manager"
        component_b = "system_optimizer"

        result = validator.validate_component_integration(component_a, component_b)

        assert "validation_id" in result
        assert "timestamp" in result
        assert "status" in result
        assert result["status"] in ["passed", "failed", "warning"]
        assert "component_a" in result
        assert "component_b" in result
        assert "tests" in result

        # Verify tests were run
        tests = result["tests"]
        assert isinstance(tests, list)
        assert len(tests) > 0

        for test in tests:
            assert "test_name" in test
            assert "result" in test
            assert test["result"] in ["passed", "failed", "skipped"]

    def test_run_cross_component_validation(self, validator):
        """Test cross-component validation."""
        result = validator.run_cross_component_validation()

        assert "validation_id" in result
        assert "timestamp" in result
        assert "overall_status" in result
        assert result["overall_status"] in ["passed", "failed", "warnings"]
        assert "component_pairs" in result
        assert "summary" in result

        # Verify component pair validations
        component_pairs = result["component_pairs"]
        assert isinstance(component_pairs, list)

        for pair in component_pairs:
            assert "component_a" in pair
            assert "component_b" in pair
            assert "validation_result" in pair

    def test_validate_data_flow(self, validator):
        """Test data flow validation."""
        source_component = "performance_manager"
        target_component = "monitoring_system"

        result = validator.validate_data_flow(source_component, target_component)

        assert "validation_id" in result
        assert "source_component" in result
        assert "target_component" in result
        assert "status" in result
        assert result["status"] in ["valid", "invalid", "warning"]
        assert "data_flow_tests" in result

        # Verify data flow tests
        tests = result["data_flow_tests"]
        assert isinstance(tests, list)

        for test in tests:
            assert "test_type" in test
            assert "result" in test

    def test_run_performance_benchmarks(self, validator):
        """Test performance benchmarking."""
        result = validator.run_performance_benchmarks()

        assert "benchmark_id" in result
        assert "timestamp" in result
        assert "overall_status" in result
        assert result["overall_status"] in ["passed", "failed", "warnings"]
        assert "benchmarks" in result
        assert "performance_metrics" in result

        # Verify benchmarks
        benchmarks = result["benchmarks"]
        assert isinstance(benchmarks, list)

        for benchmark in benchmarks:
            assert "name" in benchmark
            assert "result" in benchmark
            assert "duration_ms" in benchmark
            assert "passed_threshold" in benchmark

    def test_validate_system_stability(self, validator):
        """Test system stability validation."""
        result = validator.validate_system_stability()

        assert "validation_id" in result
        assert "timestamp" in result
        assert "stability_status" in result
        assert result["stability_status"] in ["stable", "unstable", "degraded"]
        assert "stability_tests" in result
        assert "stability_metrics" in result

        # Verify stability tests were run
        tests = result["stability_tests"]
        assert isinstance(tests, list)
        assert len(tests) > 0

    def test_generate_validation_report(self, validator):
        """Test validation report generation."""
        # Run some validations first
        validator.run_cross_component_validation()
        validator.run_performance_benchmarks()

        result = validator.generate_validation_report()

        assert "report_id" in result
        assert "timestamp" in result
        assert "validation_summary" in result
        assert "detailed_results" in result
        assert "recommendations" in result

        # Verify validation summary
        summary = result["validation_summary"]
        assert "total_validations" in summary
        assert "passed_validations" in summary
        assert "failed_validations" in summary
        assert "overall_status" in summary


class TestProductionReadinessChecker:
    """Test suite for ProductionReadinessChecker."""

    @pytest.fixture
    def checker(self):
        """Create a ProductionReadinessChecker instance for testing."""
        return ProductionReadinessChecker()

    def test_initialization(self, checker):
        """Test proper initialization of the readiness checker."""
        assert checker is not None
        assert hasattr(checker, "readiness_criteria")
        assert hasattr(checker, "assessment_history")
        assert hasattr(checker, "_lock")
        assert isinstance(checker.readiness_criteria, dict)
        assert len(checker.readiness_criteria) > 0

    def test_assess_production_readiness(self, checker):
        """Test production readiness assessment."""
        result = checker.assess_production_readiness()

        assert "assessment_id" in result
        assert "timestamp" in result
        assert "readiness_score" in result
        assert "readiness_status" in result
        assert "criteria_results" in result
        assert "recommendations" in result

        # Verify readiness score is valid
        score = result["readiness_score"]
        assert isinstance(score, (int, float))
        assert 0 <= score <= 100

        # Verify readiness status
        status = result["readiness_status"]
        assert status in ["ready", "partially_ready", "not_ready"]

        # Verify criteria results
        criteria = result["criteria_results"]
        assert isinstance(criteria, dict)
        assert len(criteria) > 0

    def test_check_dependency_readiness(self, checker):
        """Test dependency readiness checking."""
        result = checker.check_dependency_readiness()

        assert "status" in result
        assert result["status"] in ["ready", "partially_ready", "not_ready"]
        assert "dependencies" in result
        assert "missing_dependencies" in result

        # Verify dependencies information
        dependencies = result["dependencies"]
        assert isinstance(dependencies, list)

        for dep in dependencies:
            assert "name" in dep
            assert "status" in dep
            assert dep["status"] in ["available", "missing", "version_mismatch"]

    def test_validate_configuration(self, checker):
        """Test configuration validation."""
        result = checker.validate_configuration()

        assert "status" in result
        assert result["status"] in ["valid", "invalid", "warnings"]
        assert "config_checks" in result
        assert "validation_errors" in result

        # Verify configuration checks
        checks = result["config_checks"]
        assert isinstance(checks, list)

        for check in checks:
            assert "check_name" in check
            assert "result" in check
            assert check["result"] in ["passed", "failed", "warning"]

    def test_check_resource_availability(self, checker):
        """Test resource availability checking."""
        result = checker.check_resource_availability()

        assert "status" in result
        assert result["status"] in ["sufficient", "insufficient", "critical"]
        assert "resources" in result
        assert "recommendations" in result

        # Verify resource information
        resources = result["resources"]
        assert isinstance(resources, dict)

        # Common resources to check
        expected_resources = ["cpu", "memory", "disk", "network"]
        for resource in expected_resources:
            if resource in resources:
                res_info = resources[resource]
                assert "available" in res_info or "status" in res_info

    def test_perform_security_assessment(self, checker):
        """Test security assessment."""
        result = checker.perform_security_assessment()

        assert "status" in result
        assert result["status"] in ["secure", "warnings", "critical"]
        assert "security_checks" in result
        assert "vulnerabilities" in result

        # Verify security checks
        checks = result["security_checks"]
        assert isinstance(checks, list)

        for check in checks:
            assert "check_name" in check
            assert "result" in check
            assert check["result"] in ["passed", "failed", "warning"]

    def test_generate_readiness_report(self, checker):
        """Test readiness report generation."""
        # Perform assessment first
        assessment = checker.assess_production_readiness()

        result = checker.generate_readiness_report(assessment["assessment_id"])

        assert "report_id" in result
        assert "assessment_id" in result
        assert "timestamp" in result
        assert "executive_summary" in result
        assert "detailed_assessment" in result
        assert "action_items" in result

        # Verify executive summary
        summary = result["executive_summary"]
        assert "readiness_score" in summary
        assert "readiness_status" in summary
        assert "key_findings" in summary


class TestIntegrationReporter:
    """Test suite for IntegrationReporter."""

    @pytest.fixture
    def reporter(self):
        """Create an IntegrationReporter instance for testing."""
        return IntegrationReporter()

    def test_initialization(self, reporter):
        """Test proper initialization of the reporter."""
        assert reporter is not None
        assert hasattr(reporter, "report_templates")
        assert hasattr(reporter, "report_history")
        assert hasattr(reporter, "_lock")
        assert isinstance(reporter.report_templates, dict)
        assert len(reporter.report_templates) > 0

    def test_generate_integration_report(self, reporter):
        """Test integration report generation."""
        result = reporter.generate_integration_report()

        assert "report_id" in result
        assert "timestamp" in result
        assert "report_type" in result
        assert result["report_type"] == "integration_report"
        assert "sections" in result
        assert "metadata" in result

        # Verify report sections
        sections = result["sections"]
        assert isinstance(sections, dict)

        expected_sections = [
            "executive_summary",
            "component_status",
            "integration_status",
            "performance_analysis",
            "recommendations",
        ]

        for section in expected_sections:
            if section in sections:
                assert isinstance(sections[section], dict)

    def test_generate_performance_report(self, reporter):
        """Test performance report generation."""
        result = reporter.generate_performance_report()

        assert "report_id" in result
        assert "report_type" in result
        assert result["report_type"] == "performance_report"
        assert "performance_metrics" in result
        assert "benchmarks" in result
        assert "optimization_suggestions" in result

        # Verify performance metrics
        metrics = result["performance_metrics"]
        assert isinstance(metrics, dict)

    def test_generate_deployment_report(self, reporter):
        """Test deployment report generation."""
        result = reporter.generate_deployment_report()

        assert "report_id" in result
        assert "report_type" in result
        assert result["report_type"] == "deployment_report"
        assert "deployment_status" in result
        assert "readiness_assessment" in result
        assert "deployment_plan" in result

        # Verify deployment status
        status = result["deployment_status"]
        assert isinstance(status, dict)
        assert "overall_status" in status

    def test_generate_comprehensive_report(self, reporter):
        """Test comprehensive report generation."""
        result = reporter.generate_comprehensive_report()

        assert "report_id" in result
        assert "report_type" in result
        assert result["report_type"] == "comprehensive_report"
        assert "sections" in result

        # Verify comprehensive sections
        sections = result["sections"]
        assert isinstance(sections, dict)

        expected_sections = [
            "executive_summary",
            "integration_analysis",
            "performance_analysis",
            "readiness_assessment",
            "deployment_status",
            "operational_status",
            "recommendations",
        ]

        for section in expected_sections:
            if section in sections:
                assert isinstance(sections[section], dict)

    def test_export_report(self, reporter):
        """Test report export functionality."""
        # Generate a report first
        report = reporter.generate_integration_report()
        report_id = report["report_id"]

        # Test different export formats
        formats_to_test = ["json", "html", "pdf"]

        for format_type in formats_to_test:
            try:
                result = reporter.export_report(report_id, format_type)

                assert "export_id" in result
                assert "format" in result
                assert result["format"] == format_type
                assert "status" in result
                assert result["status"] in ["success", "failed", "partial"]

                if result["status"] == "success":
                    assert "export_path" in result or "export_data" in result

            except Exception as e:
                # Some formats might not be available in test environment
                pytest.skip(f"Export format {format_type} not available: {e}")

    def test_get_report_history(self, reporter):
        """Test report history retrieval."""
        # Generate some reports first
        reporter.generate_integration_report()
        reporter.generate_performance_report()

        result = reporter.get_report_history()

        assert "total_reports" in result
        assert "reports" in result
        assert isinstance(result["reports"], list)
        assert result["total_reports"] >= 2

        # Verify report entries
        for report_entry in result["reports"]:
            assert "report_id" in report_entry
            assert "report_type" in report_entry
            assert "timestamp" in report_entry


class TestEndToEndIntegration:
    """End-to-end integration tests for the complete Phase 3 system."""

    @pytest.fixture
    def integration_components(self):
        """Create all integration components for end-to-end testing."""
        return {
            "orchestrator": Phase3IntegrationOrchestrator(),
            "validator": IntegrationValidator(),
            "readiness_checker": ProductionReadinessChecker(),
            "reporter": IntegrationReporter(),
        }

    def test_complete_integration_workflow(self, integration_components):
        """Test complete integration workflow from initialization to reporting."""
        orchestrator = integration_components["orchestrator"]
        validator = integration_components["validator"]
        readiness_checker = integration_components["readiness_checker"]
        reporter = integration_components["reporter"]

        # Step 1: Initialize integration
        init_result = orchestrator.initialize_integration()
        assert init_result["status"] in ["success", "partial"]

        # Step 2: Start integrated system
        if init_result["status"] in ["success", "partial"]:
            start_result = orchestrator.start_integrated_system()
            assert start_result["status"] in ["running", "degraded"]

            # Step 3: Run validation
            validation_result = validator.run_cross_component_validation()
            assert validation_result["overall_status"] in ["passed", "warnings"]

            # Step 4: Check production readiness
            readiness_result = readiness_checker.assess_production_readiness()
            assert readiness_result["readiness_status"] in ["ready", "partially_ready"]

            # Step 5: Generate comprehensive report
            report_result = reporter.generate_comprehensive_report()
            assert report_result["report_type"] == "comprehensive_report"
            assert "sections" in report_result

            # Step 6: Optimize system
            optimization_result = orchestrator.optimize_integrated_system()
            assert optimization_result["status"] in ["optimized", "partially_optimized"]

            # Step 7: Final health check
            health_result = orchestrator.get_system_health()
            assert health_result["overall_status"] in ["healthy", "degraded"]

    def test_error_handling_and_recovery(self, integration_components):
        """Test error handling and recovery mechanisms."""
        orchestrator = integration_components["orchestrator"]
        validator = integration_components["validator"]

        # Test graceful degradation when components are unavailable
        with patch.object(orchestrator, "performance_manager", None):
            health_result = orchestrator.get_system_health()
            assert "components" in health_result
            # Should still work with degraded functionality

        # Test validation with missing components
        validation_result = validator.validate_component_integration(
            "nonexistent_component_a",
            "nonexistent_component_b",
        )
        assert validation_result["status"] in ["failed", "warning"]

    def test_performance_targets(self, integration_components):
        """Test that system meets performance targets."""
        orchestrator = integration_components["orchestrator"]
        validator = integration_components["validator"]

        # Test initialization performance
        start_time = time.time()
        init_result = orchestrator.initialize_integration()
        init_duration = time.time() - start_time

        # Should initialize within reasonable time (adjust as needed)
        assert init_duration < 30.0, f"Initialization took too long: {init_duration}s"

        # Test validation performance
        start_time = time.time()
        validation_result = validator.run_performance_benchmarks()
        validation_duration = time.time() - start_time

        # Should complete benchmarks within reasonable time
        assert (
            validation_duration < 60.0
        ), f"Performance benchmarks took too long: {validation_duration}s"

        # Verify benchmark results meet targets
        if validation_result["overall_status"] == "passed":
            benchmarks = validation_result["benchmarks"]
            for benchmark in benchmarks:
                assert benchmark[
                    "passed_threshold"
                ], f"Benchmark {benchmark['name']} failed to meet threshold"

    def test_production_deployment_readiness(self, integration_components):
        """Test that system is ready for production deployment."""
        orchestrator = integration_components["orchestrator"]
        readiness_checker = integration_components["readiness_checker"]

        # Initialize and start system
        init_result = orchestrator.initialize_integration()
        start_result = orchestrator.start_integrated_system()

        # Assess production readiness
        readiness_result = readiness_checker.assess_production_readiness()

        # For production deployment, we need high readiness
        assert (
            readiness_result["readiness_score"] >= 70
        ), f"Readiness score too low for production: {readiness_result['readiness_score']}"

        # Check critical dependencies
        dep_result = readiness_checker.check_dependency_readiness()
        assert dep_result["status"] in [
            "ready",
            "partially_ready",
        ], f"Dependencies not ready: {dep_result['status']}"

        # Check resource availability
        resource_result = readiness_checker.check_resource_availability()
        assert resource_result["status"] in [
            "sufficient",
        ], f"Insufficient resources for production: {resource_result['status']}"

        # Security assessment
        security_result = readiness_checker.perform_security_assessment()
        assert security_result["status"] in [
            "secure",
            "warnings",
        ], f"Security issues prevent production deployment: {security_result['status']}"

    def test_monitoring_and_observability(self, integration_components):
        """Test monitoring and observability capabilities."""
        orchestrator = integration_components["orchestrator"]
        reporter = integration_components["reporter"]

        # Start system
        orchestrator.initialize_integration()
        orchestrator.start_integrated_system()

        # Monitor health over time
        health_samples = []
        for i in range(3):
            health = orchestrator.get_system_health()
            health_samples.append(health)
            time.sleep(0.1)

        # Verify consistent monitoring
        assert len(health_samples) == 3
        for sample in health_samples:
            assert "overall_status" in sample
            assert "system_metrics" in sample

        # Generate monitoring report
        monitoring_report = reporter.generate_performance_report()
        assert "performance_metrics" in monitoring_report
        assert "benchmarks" in monitoring_report

    def test_scalability_and_load_handling(self, integration_components):
        """Test system scalability and load handling."""
        orchestrator = integration_components["orchestrator"]

        # Initialize system
        orchestrator.initialize_integration()
        orchestrator.start_integrated_system()

        # Simulate concurrent operations
        def concurrent_health_check():
            return orchestrator.get_system_health()

        # Run multiple concurrent operations
        import concurrent.futures

        with concurrent.futures.ThreadPoolExecutor(max_workers=5) as executor:
            futures = [executor.submit(concurrent_health_check) for _ in range(10)]
            results = [
                future.result() for future in concurrent.futures.as_completed(futures)
            ]

        # Verify all operations completed successfully
        assert len(results) == 10
        for result in results:
            assert "overall_status" in result
            assert result["overall_status"] in ["healthy", "degraded", "unhealthy"]


class TestErrorHandling:
    """Test error handling across all Phase 3 integration components."""

    def test_integration_error_handling(self):
        """Test IntegrationError handling."""
        with pytest.raises(IntegrationError):
            raise IntegrationError("Test integration error")

    def test_validation_error_handling(self):
        """Test ValidationError handling."""
        with pytest.raises(ValidationError):
            raise ValidationError("Test validation error")

    def test_readiness_error_handling(self):
        """Test ReadinessError handling."""
        with pytest.raises(ReadinessError):
            raise ReadinessError("Test readiness error")

    def test_reporting_error_handling(self):
        """Test ReportingError handling."""
        with pytest.raises(ReportingError):
            raise ReportingError("Test reporting error")

    def test_graceful_degradation(self):
        """Test graceful degradation when components fail."""
        orchestrator = Phase3IntegrationOrchestrator()

        # Mock component failure
        with patch.object(orchestrator, "performance_manager", None):
            # Should still work with degraded functionality
            health = orchestrator.get_system_health()
            assert "overall_status" in health
            # Health status should reflect degraded state
            assert health["overall_status"] in ["degraded", "unhealthy"]


class TestPerformanceBenchmarks:
    """Performance benchmarks for Phase 3 integration components."""

    def test_orchestrator_performance(self):
        """Benchmark orchestrator performance."""
        orchestrator = Phase3IntegrationOrchestrator()

        # Benchmark initialization
        start_time = time.time()
        orchestrator.initialize_integration()
        init_time = time.time() - start_time

        # Should initialize quickly
        assert init_time < 10.0, f"Initialization too slow: {init_time}s"

        # Benchmark health checking
        start_time = time.time()
        for _ in range(10):
            orchestrator.get_system_health()
        health_check_time = time.time() - start_time

        # Should handle multiple health checks efficiently
        assert health_check_time < 5.0, f"Health checks too slow: {health_check_time}s"

    def test_validator_performance(self):
        """Benchmark validator performance."""
        validator = IntegrationValidator()

        # Benchmark cross-component validation
        start_time = time.time()
        validator.run_cross_component_validation()
        validation_time = time.time() - start_time

        # Should complete validation in reasonable time
        assert validation_time < 30.0, f"Validation too slow: {validation_time}s"

    def test_readiness_checker_performance(self):
        """Benchmark readiness checker performance."""
        checker = ProductionReadinessChecker()

        # Benchmark readiness assessment
        start_time = time.time()
        checker.assess_production_readiness()
        assessment_time = time.time() - start_time

        # Should complete assessment quickly
        assert (
            assessment_time < 15.0
        ), f"Readiness assessment too slow: {assessment_time}s"

    def test_reporter_performance(self):
        """Benchmark reporter performance."""
        reporter = IntegrationReporter()

        # Benchmark comprehensive report generation
        start_time = time.time()
        reporter.generate_comprehensive_report()
        report_time = time.time() - start_time

        # Should generate reports efficiently
        assert report_time < 10.0, f"Report generation too slow: {report_time}s"


if __name__ == "__main__":
    # Run tests with pytest
    pytest.main([__file__, "-v", "--tb=short"])
