optirs_bench/

automated_test_runners.rs

// Automated test runners for cross-platform CI/CD integration
//
// This module provides automated test execution capabilities for continuous
// integration systems, with support for parallel execution, resource management,
// and comprehensive result reporting across multiple platforms.

use crate::cross_platform_tester::{
    CrossPlatformConfig, CrossPlatformTestReport, CrossPlatformTester, PerformanceThresholds,
    PlatformTarget, TestCategory,
};
use crate::error::{OptimError, Result};
use serde::{Deserialize, Serialize};
use std::collections::{HashMap, VecDeque};
use std::fmt::Debug;
use std::process::{Command, Stdio};
use std::sync::{Arc, Mutex};
use std::thread;
use std::time::{Duration, Instant};

/// Automated test runner for CI/CD environments
#[derive(Debug)]
pub struct AutomatedTestRunner {
    /// Runner configuration
    config: AutomatedRunnerConfig,
    /// Platform matrix
    platform_matrix: PlatformMatrix,
    /// Test execution queue
    execution_queue: Arc<Mutex<VecDeque<TestExecution>>>,
    /// Resource manager
    resource_manager: ResourceManager,
    /// Results aggregator
    results_aggregator: ResultsAggregator,
}

/// Configuration for automated test runner
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct AutomatedRunnerConfig {
    /// Maximum parallel test runners
    pub max_parallel_runners: usize,
    /// Test timeout per platform (seconds)
    pub test_timeout_seconds: u64,
    /// Global timeout for entire matrix (seconds)
    pub global_timeout_seconds: u64,
    /// Enable resource monitoring
    pub enable_resource_monitoring: bool,
    /// Fail fast on first failure
    pub fail_fast: bool,
    /// Retry failed tests
    pub retry_failed_tests: bool,
    /// Maximum retries per test
    pub max_retries: usize,
    /// Enable test result caching
    pub enable_result_caching: bool,
    /// CI environment variables to capture
    pub ci_environment_vars: Vec<String>,
    /// Custom test runners per platform
    pub custom_runners: HashMap<PlatformTarget, String>,
}

impl Default for AutomatedRunnerConfig {
    fn default() -> Self {
        Self {
            max_parallel_runners: 4,
            test_timeout_seconds: 300,    // 5 minutes
            global_timeout_seconds: 1800, // 30 minutes
            enable_resource_monitoring: true,
            fail_fast: false,
            retry_failed_tests: true,
            max_retries: 2,
            enable_result_caching: true,
            ci_environment_vars: vec![
                "GITHUB_ACTIONS".to_string(),
                "GITHUB_WORKFLOW".to_string(),
                "GITHUB_RUN_ID".to_string(),
                "GITHUB_SHA".to_string(),
                "CI".to_string(),
                "BUILD_ID".to_string(),
            ],
            custom_runners: HashMap::new(),
        }
    }
}

/// Platform test matrix configuration
#[derive(Debug, Clone)]
pub struct PlatformMatrix {
    /// Platform configurations
    pub platforms: HashMap<PlatformTarget, PlatformTestConfig>,
    /// Test dependencies between platforms
    pub dependencies: HashMap<PlatformTarget, Vec<PlatformTarget>>,
    /// Platform priorities (higher = test first)
    pub priorities: HashMap<PlatformTarget, u32>,
    /// Platform-specific environment setup
    pub environment_setup: HashMap<PlatformTarget, Vec<String>>,
}

/// Configuration for testing a specific platform
#[derive(Debug, Clone)]
pub struct PlatformTestConfig {
    /// Platform target
    pub platform: PlatformTarget,
    /// Test categories to run
    pub test_categories: Vec<TestCategory>,
    /// Platform-specific thresholds
    pub performance_thresholds: PerformanceThresholds,
    /// Docker image for testing (if applicable)
    pub docker_image: Option<String>,
    /// Required system packages
    pub required_packages: Vec<String>,
    /// Environment variables
    pub environment_variables: HashMap<String, String>,
    /// Setup commands
    pub setup_commands: Vec<String>,
    /// Cleanup commands
    pub cleanup_commands: Vec<String>,
    /// Resource requirements
    pub resource_requirements: ResourceRequirements,
}

/// Resource requirements for platform testing
#[derive(Debug, Clone)]
pub struct ResourceRequirements {
    /// Minimum CPU cores
    pub min_cpu_cores: usize,
    /// Minimum memory (MB)
    pub min_memory_mb: usize,
    /// Minimum disk space (MB)
    pub min_disk_space_mb: usize,
    /// GPU required
    pub gpu_required: bool,
    /// Network access required
    pub network_required: bool,
}

/// Individual test execution
#[derive(Debug, Clone)]
pub struct TestExecution {
    /// Execution ID
    pub id: String,
    /// Platform target
    pub platform: PlatformTarget,
    /// Test configuration
    pub config: PlatformTestConfig,
    /// Execution status
    pub status: ExecutionStatus,
    /// Start time
    pub start_time: Option<Instant>,
    /// End time
    pub end_time: Option<Instant>,
    /// Retry count
    pub retry_count: usize,
    /// Resource usage
    pub resource_usage: Option<ResourceUsage>,
    /// Test results
    pub results: Option<CrossPlatformTestReport>,
    /// Error information
    pub error: Option<String>,
}

/// Test execution status
#[derive(Debug, Clone, PartialEq)]
pub enum ExecutionStatus {
    Queued,
    Running,
    Completed,
    Failed,
    Timeout,
    Cancelled,
    Retrying,
}

/// Resource usage during test execution
#[derive(Debug, Clone)]
pub struct ResourceUsage {
    /// Peak CPU usage (percentage)
    pub peak_cpu_usage: f64,
    /// Peak memory usage (MB)
    pub peak_memory_usage: usize,
    /// Average CPU usage (percentage)
    pub average_cpu_usage: f64,
    /// Average memory usage (MB)
    pub average_memory_usage: usize,
    /// Disk I/O (read/write bytes)
    pub disk_io: (u64, u64),
    /// Network I/O (sent/received bytes)
    pub network_io: (u64, u64),
    /// Execution duration
    pub execution_duration: Duration,
}

/// Resource manager for test execution
#[derive(Debug)]
#[allow(dead_code)]
pub struct ResourceManager {
    /// Available CPU cores
    available_cores: usize,
    /// Available memory (MB)
    available_memory: usize,
    /// Currently allocated resources
    allocated_resources: Arc<Mutex<HashMap<String, ResourceAllocation>>>,
    /// Resource monitoring enabled
    _monitoringenabled: bool,
}

/// Resource allocation for a test execution
#[derive(Debug, Clone)]
pub struct ResourceAllocation {
    /// Allocated CPU cores
    pub cpu_cores: usize,
    /// Allocated memory (MB)
    pub memory_mb: usize,
    /// Allocation timestamp
    pub allocated_at: Instant,
    /// Execution ID
    pub execution_id: String,
}

/// Results aggregator for cross-platform test results
#[derive(Debug)]
pub struct ResultsAggregator {
    /// Aggregated results by platform
    platform_results: HashMap<PlatformTarget, CrossPlatformTestReport>,
    /// Matrix execution summary
    matrix_summary: MatrixExecutionSummary,
    /// Performance comparisons
    performance_matrix: PerformanceMatrix,
    /// Failure analysis
    failure_analysis: FailureAnalysis,
}

/// Summary of matrix execution
#[derive(Debug, Clone)]
pub struct MatrixExecutionSummary {
    /// Total platforms tested
    pub total_platforms: usize,
    /// Successful platform tests
    pub successful_platforms: usize,
    /// Failed platform tests
    pub failed_platforms: usize,
    /// Total execution time
    pub total_execution_time: Duration,
    /// Average execution time per platform
    pub average_execution_time: Duration,
    /// Resource utilization
    pub resource_utilization: ResourceUtilizationSummary,
    /// CI environment information
    pub ci_environment: CIEnvironmentInfo,
}

/// Performance comparison matrix
#[derive(Debug, Clone)]
pub struct PerformanceMatrix {
    /// Performance scores by platform and test
    pub performance_scores: HashMap<(PlatformTarget, String), f64>,
    /// Relative performance rankings
    pub performance_rankings: HashMap<String, Vec<(PlatformTarget, f64)>>,
    /// Performance regression analysis
    pub regression_analysis: Vec<PerformanceRegression>,
    /// Performance optimization opportunities
    pub optimization_opportunities: Vec<OptimizationOpportunity>,
}

/// Performance regression detection
#[derive(Debug, Clone)]
pub struct PerformanceRegression {
    /// Platform affected
    pub platform: PlatformTarget,
    /// Test name
    pub test_name: String,
    /// Current performance
    pub current_performance: f64,
    /// Baseline performance
    pub baseline_performance: f64,
    /// Regression percentage
    pub regression_percentage: f64,
    /// Statistical significance
    pub statistical_significance: f64,
}

/// Performance optimization opportunity
#[derive(Debug, Clone)]
pub struct OptimizationOpportunity {
    /// Platform
    pub platform: PlatformTarget,
    /// Optimization type
    pub optimization_type: String,
    /// Estimated improvement
    pub estimated_improvement: f64,
    /// Implementation complexity
    pub complexity: String,
    /// Priority
    pub priority: String,
}

/// Failure analysis across platforms
#[derive(Debug, Clone)]
pub struct FailureAnalysis {
    /// Common failure patterns
    pub common_patterns: Vec<FailurePattern>,
    /// Platform-specific issues
    pub platform_issues: HashMap<PlatformTarget, Vec<String>>,
    /// Root cause analysis
    pub root_causes: Vec<RootCause>,
    /// Remediation recommendations
    pub recommendations: Vec<String>,
}

/// Common failure pattern
#[derive(Debug, Clone)]
pub struct FailurePattern {
    /// Pattern description
    pub description: String,
    /// Affected platforms
    pub affected_platforms: Vec<PlatformTarget>,
    /// Frequency
    pub frequency: usize,
    /// Severity
    pub severity: String,
}

/// Root cause analysis
#[derive(Debug, Clone)]
pub struct RootCause {
    /// Cause description
    pub description: String,
    /// Evidence
    pub evidence: Vec<String>,
    /// Likelihood (0.0 to 1.0)
    pub likelihood: f64,
    /// Impact assessment
    pub impact: String,
}

/// Resource utilization summary
#[derive(Debug, Clone)]
pub struct ResourceUtilizationSummary {
    /// Average CPU utilization
    pub avg_cpu_utilization: f64,
    /// Peak CPU utilization
    pub peak_cpu_utilization: f64,
    /// Average memory utilization
    pub avg_memory_utilization: f64,
    /// Peak memory utilization
    pub peak_memory_utilization: f64,
    /// Total compute time (core-hours)
    pub total_compute_time: f64,
}

/// CI environment information
#[derive(Debug, Clone)]
pub struct CIEnvironmentInfo {
    /// CI system type
    pub ci_system: String,
    /// Build ID
    pub build_id: Option<String>,
    /// Commit SHA
    pub commit_sha: Option<String>,
    /// Branch name
    pub branch: Option<String>,
    /// Workflow name
    pub workflow: Option<String>,
    /// Environment variables
    pub environment_vars: HashMap<String, String>,
}

impl AutomatedTestRunner {
    /// Create a new automated test runner
    pub fn new(config: AutomatedRunnerConfig) -> Self {
        let platform_matrix = PlatformMatrix::default();
        let execution_queue = Arc::new(Mutex::new(VecDeque::new()));
        let resource_manager = ResourceManager::new(config.enable_resource_monitoring);
        let results_aggregator = ResultsAggregator::new();

        Self {
            config,
            platform_matrix,
            execution_queue,
            resource_manager,
            results_aggregator,
        }
    }

    /// Run complete cross-platform test matrix
    pub fn run_test_matrix(&mut self) -> Result<MatrixTestResults> {
        println!("🚀 Starting automated cross-platform test matrix...");

        // Detect CI environment
        let ci_environment = self.detect_ci_environment();
        println!("CI Environment: {:?}", ci_environment.ci_system);

        // Validate resource availability
        self.validate_resources()?;

        // Setup platform test executions
        self.setup_test_executions()?;

        // Execute tests in parallel with resource management
        let start_time = Instant::now();
        self.execute_test_matrix()?;
        let total_execution_time = start_time.elapsed();

        // Aggregate and analyze results
        self.aggregate_results(total_execution_time, ci_environment)?;

        // Generate comprehensive report
        let results = self.generate_matrix_results()?;

        println!(
            "✅ Cross-platform test matrix completed in {:?}",
            total_execution_time
        );

        Ok(results)
    }

    /// Detect CI environment
    fn detect_ci_environment(&self) -> CIEnvironmentInfo {
        let mut environment_vars = HashMap::new();
        let mut ci_system = "Unknown".to_string();
        let mut build_id = None;
        let mut commit_sha = None;
        let mut branch = None;
        let mut workflow = None;

        // Capture configured environment variables
        for var_name in &self.config.ci_environment_vars {
            if let Ok(value) = std::env::var(var_name) {
                environment_vars.insert(var_name.clone(), value.clone());

                // Detect CI system type
                match var_name.as_str() {
                    "GITHUB_ACTIONS" => {
                        ci_system = "GitHub Actions".to_string();
                        workflow = environment_vars.get("GITHUB_WORKFLOW").cloned();
                        build_id = environment_vars.get("GITHUB_RUN_ID").cloned();
                        commit_sha = environment_vars.get("GITHUB_SHA").cloned();
                    }
                    "JENKINS_URL" => {
                        ci_system = "Jenkins".to_string();
                        build_id = environment_vars.get("BUILD_ID").cloned();
                    }
                    "TRAVIS" => {
                        ci_system = "Travis CI".to_string();
                        build_id = environment_vars.get("TRAVIS_BUILD_ID").cloned();
                    }
                    "CIRCLECI" => {
                        ci_system = "CircleCI".to_string();
                        build_id = environment_vars.get("CIRCLE_BUILD_NUM").cloned();
                    }
                    _ => {}
                }
            }
        }

        // Try to detect branch from git
        if branch.is_none() {
            if let Ok(output) = Command::new("git")
                .args(["rev-parse", "--abbrev-ref", "HEAD"])
                .output()
            {
                if output.status.success() {
                    branch = Some(String::from_utf8_lossy(&output.stdout).trim().to_string());
                }
            }
        }

        CIEnvironmentInfo {
            ci_system,
            build_id,
            commit_sha,
            branch,
            workflow,
            environment_vars,
        }
    }

    /// Validate resource availability
    fn validate_resources(&self) -> Result<()> {
        println!("🔍 Validating resource availability...");

        let total_required_cores = self
            .platform_matrix
            .platforms
            .values()
            .map(|config| config.resource_requirements.min_cpu_cores)
            .sum::<usize>();

        let total_required_memory = self
            .platform_matrix
            .platforms
            .values()
            .map(|config| config.resource_requirements.min_memory_mb)
            .sum::<usize>();

        if total_required_cores
            > self.resource_manager.available_cores * self.config.max_parallel_runners
        {
            return Err(OptimError::ResourceError(format!(
                "Insufficient CPU cores: required {}, available {}",
                total_required_cores,
                self.resource_manager.available_cores * self.config.max_parallel_runners
            )));
        }

        if total_required_memory > self.resource_manager.available_memory {
            return Err(OptimError::ResourceError(format!(
                "Insufficient memory: required {}MB, available {}MB",
                total_required_memory, self.resource_manager.available_memory
            )));
        }

        println!("✅ Resource validation passed");
        Ok(())
    }

    /// Setup test executions
    fn setup_test_executions(&mut self) -> Result<()> {
        println!("📋 Setting up test executions...");

        let mut queue = self.execution_queue.lock().map_err(|_| {
            OptimError::InvalidState("Failed to acquire execution queue lock".to_string())
        })?;

        // Sort platforms by priority
        let mut platforms: Vec<_> = self.platform_matrix.platforms.keys().collect();
        platforms.sort_by_key(|&platform| {
            std::cmp::Reverse(self.platform_matrix.priorities.get(platform).unwrap_or(&0))
        });

        for platform in platforms {
            if let Some(config) = self.platform_matrix.platforms.get(platform) {
                let execution = TestExecution {
                    id: format!("{}_{}", platform, chrono::Utc::now().timestamp()),
                    platform: platform.clone(),
                    config: config.clone(),
                    status: ExecutionStatus::Queued,
                    start_time: None,
                    end_time: None,
                    retry_count: 0,
                    resource_usage: None,
                    results: None,
                    error: None,
                };

                queue.push_back(execution);
            }
        }

        println!("📋 Setup {} test executions", queue.len());
        Ok(())
    }

    /// Execute test matrix with parallel execution
    fn execute_test_matrix(&mut self) -> Result<()> {
        println!(
            "🏃 Executing test matrix with {} parallel runners...",
            self.config.max_parallel_runners
        );

        let mut handles = Vec::new();
        let execution_queue = Arc::clone(&self.execution_queue);

        // Spawn worker threads
        for worker_id in 0..self.config.max_parallel_runners {
            let queue_clone = Arc::clone(&execution_queue);
            let config = self.config.clone();

            let handle = thread::spawn(move || Self::worker_thread(worker_id, queue_clone, config));

            handles.push(handle);
        }

        // Wait for all workers to complete
        for handle in handles {
            if let Err(e) = handle.join() {
                eprintln!("Worker thread panicked: {:?}", e);
            }
        }

        println!("✅ Test matrix execution completed");
        Ok(())
    }

    /// Worker thread for executing tests
    fn worker_thread(
        worker_id: usize,
        execution_queue: Arc<Mutex<VecDeque<TestExecution>>>,
        config: AutomatedRunnerConfig,
    ) {
        println!("🧵 Worker {} started", worker_id);

        loop {
            // Get next execution
            let mut execution = {
                let mut queue = match execution_queue.lock() {
                    Ok(queue) => queue,
                    Err(_) => {
                        eprintln!("Worker {} failed to acquire _queue lock", worker_id);
                        break;
                    }
                };

                match queue
                    .iter_mut()
                    .find(|e| e.status == ExecutionStatus::Queued)
                {
                    Some(exec) => {
                        exec.status = ExecutionStatus::Running;
                        exec.start_time = Some(Instant::now());
                        exec.clone()
                    }
                    None => {
                        // No more work
                        break;
                    }
                }
            };

            println!(
                "🧵 Worker {} executing test for {:?}",
                worker_id, execution.platform
            );

            // Execute test
            let result = Self::execute_platform_test(&mut execution, &config);

            // Update execution status
            {
                let mut queue = execution_queue.lock().expect("lock poisoned");
                if let Some(exec) = queue.iter_mut().find(|e| e.id == execution.id) {
                    exec.end_time = Some(Instant::now());
                    exec.resource_usage = execution.resource_usage.clone();
                    exec.results = execution.results.clone();
                    exec.error = execution.error.clone();

                    match result {
                        Ok(_) => exec.status = ExecutionStatus::Completed,
                        Err(_) => {
                            if config.retry_failed_tests && exec.retry_count < config.max_retries {
                                exec.status = ExecutionStatus::Retrying;
                                exec.retry_count += 1;
                                println!(
                                    "🔄 Retrying test for {:?} (attempt {})",
                                    execution.platform,
                                    exec.retry_count + 1
                                );
                            } else {
                                exec.status = ExecutionStatus::Failed;
                            }
                        }
                    }
                }
            }
        }

        println!("🧵 Worker {} completed", worker_id);
    }

    /// Execute test for a specific platform
    fn execute_platform_test(
        execution: &mut TestExecution,
        config: &AutomatedRunnerConfig,
    ) -> Result<()> {
        let start_time = Instant::now();

        // Setup platform environment
        Self::setup_platform_environment(&execution.config)?;

        // Create cross-platform tester configuration
        let mut test_config = CrossPlatformConfig {
            target_platforms: vec![execution.platform.clone()],
            test_categories: execution.config.test_categories.clone(),
            ..Default::default()
        };
        test_config.performance_thresholds.insert(
            execution.platform.clone(),
            execution.config.performance_thresholds.clone(),
        );

        // Run tests
        let mut tester = CrossPlatformTester::new(test_config)?;
        let _test_results = tester.run_test_suite()?;

        // Generate report
        let report = tester.generate_report();
        execution.results = Some(report);

        // Simulate resource usage tracking
        execution.resource_usage = Some(ResourceUsage {
            peak_cpu_usage: 75.0,
            peak_memory_usage: 512,
            average_cpu_usage: 45.0,
            average_memory_usage: 256,
            disk_io: (1024 * 1024, 512 * 1024), // 1MB read, 512KB write
            network_io: (0, 0),
            execution_duration: start_time.elapsed(),
        });

        // Cleanup platform environment
        Self::cleanup_platform_environment(&execution.config)?;

        Ok(())
    }

    /// Setup platform-specific environment
    fn setup_platform_environment(config: &PlatformTestConfig) -> Result<()> {
        // Set environment variables
        for (key, value) in &config.environment_variables {
            std::env::set_var(key, value);
        }

        // Run setup commands
        for command in &config.setup_commands {
            let output = Command::new("sh")
                .arg("-c")
                .arg(command)
                .stdout(Stdio::null())
                .stderr(Stdio::null())
                .status();

            match output {
                Ok(status) if status.success() => continue,
                Ok(_) => {
                    return Err(OptimError::ExecutionError(format!(
                        "Setup command failed: {}",
                        command
                    )))
                }
                Err(e) => {
                    return Err(OptimError::ExecutionError(format!(
                        "Failed to execute setup command '{}': {}",
                        command, e
                    )))
                }
            }
        }

        Ok(())
    }

    /// Cleanup platform-specific environment
    fn cleanup_platform_environment(config: &PlatformTestConfig) -> Result<()> {
        // Run cleanup commands
        for command in &config.cleanup_commands {
            let _ = Command::new("sh")
                .arg("-c")
                .arg(command)
                .stdout(Stdio::null())
                .stderr(Stdio::null())
                .status();
            // Ignore cleanup failures
        }

        Ok(())
    }

    /// Aggregate results from all platform tests
    fn aggregate_results(
        &mut self,
        total_execution_time: Duration,
        ci_environment: CIEnvironmentInfo,
    ) -> Result<()> {
        println!("📊 Aggregating test results...");

        let queue = self.execution_queue.lock().map_err(|_| {
            OptimError::InvalidState("Failed to acquire execution queue lock".to_string())
        })?;

        let total_platforms = queue.len();
        let successful_platforms = queue
            .iter()
            .filter(|e| e.status == ExecutionStatus::Completed)
            .count();
        let failed_platforms = queue
            .iter()
            .filter(|e| e.status == ExecutionStatus::Failed)
            .count();

        // Calculate resource utilization
        let resource_utilization = self.calculate_resource_utilization(&queue);

        // Generate matrix summary
        self.results_aggregator.matrix_summary = MatrixExecutionSummary {
            total_platforms,
            successful_platforms,
            failed_platforms,
            total_execution_time,
            average_execution_time: if total_platforms > 0 {
                total_execution_time / total_platforms as u32
            } else {
                Duration::from_secs(0)
            },
            resource_utilization,
            ci_environment,
        };

        // Collect platform results
        for execution in queue.iter() {
            if let Some(report) = &execution.results {
                self.results_aggregator
                    .platform_results
                    .insert(execution.platform.clone(), report.clone());
            }
        }

        // Clone the queue data for later analysis to avoid borrow conflicts
        let queue_clone = queue.clone();

        // Drop the lock before calling methods that need mutable access
        drop(queue);

        // Analyze performance and failures
        self.analyze_performance_matrix()?;
        self.analyze_failures(&queue_clone)?;

        println!("📊 Results aggregation completed");
        Ok(())
    }

    /// Calculate resource utilization across all executions
    fn calculate_resource_utilization(
        &self,
        queue: &VecDeque<TestExecution>,
    ) -> ResourceUtilizationSummary {
        let mut total_cpu = 0.0f64;
        let mut peak_cpu = 0.0f64;
        let mut total_memory = 0.0f64;
        let mut peak_memory = 0.0f64;
        let mut total_compute_time = 0.0;
        let mut count = 0;

        for execution in queue {
            if let Some(usage) = &execution.resource_usage {
                total_cpu += usage.average_cpu_usage;
                peak_cpu = peak_cpu.max(usage.peak_cpu_usage);
                total_memory += usage.average_memory_usage as f64;
                peak_memory = peak_memory.max(usage.peak_memory_usage as f64);
                total_compute_time += usage.execution_duration.as_secs_f64() / 3600.0; // Convert to hours
                count += 1;
            }
        }

        ResourceUtilizationSummary {
            avg_cpu_utilization: if count > 0 {
                total_cpu / count as f64
            } else {
                0.0
            },
            peak_cpu_utilization: peak_cpu,
            avg_memory_utilization: if count > 0 {
                total_memory / count as f64
            } else {
                0.0
            },
            peak_memory_utilization: peak_memory,
            total_compute_time,
        }
    }

    /// Analyze performance across platform matrix
    fn analyze_performance_matrix(&mut self) -> Result<()> {
        // Implementation would analyze performance data across platforms
        // For now, create empty performance matrix
        self.results_aggregator.performance_matrix = PerformanceMatrix {
            performance_scores: HashMap::new(),
            performance_rankings: HashMap::new(),
            regression_analysis: Vec::new(),
            optimization_opportunities: Vec::new(),
        };

        Ok(())
    }

    /// Analyze failures across platform matrix
    fn analyze_failures(&mut self, queue: &VecDeque<TestExecution>) -> Result<()> {
        let common_patterns = Vec::new();
        let mut platform_issues = HashMap::new();
        let mut recommendations = Vec::new();

        // Analyze failed executions
        for execution in queue.iter().filter(|e| e.status == ExecutionStatus::Failed) {
            if let Some(error) = &execution.error {
                platform_issues
                    .entry(execution.platform.clone())
                    .or_insert_with(Vec::new)
                    .push(error.clone());
            }
        }

        // Generate recommendations based on failures
        if !platform_issues.is_empty() {
            recommendations
                .push("Review platform-specific test failures for common patterns".to_string());
            recommendations
                .push("Consider increasing timeout values for slower platforms".to_string());
            recommendations.push("Verify platform-specific dependencies and setup".to_string());
        }

        self.results_aggregator.failure_analysis = FailureAnalysis {
            common_patterns,
            platform_issues,
            root_causes: Vec::new(),
            recommendations,
        };

        Ok(())
    }

    /// Generate final matrix test results
    fn generate_matrix_results(&self) -> Result<MatrixTestResults> {
        Ok(MatrixTestResults {
            summary: self.results_aggregator.matrix_summary.clone(),
            platform_results: self.results_aggregator.platform_results.clone(),
            performance_matrix: self.results_aggregator.performance_matrix.clone(),
            failure_analysis: self.results_aggregator.failure_analysis.clone(),
            recommendations: self.generate_final_recommendations(),
        })
    }

    /// Generate final recommendations for the matrix
    fn generate_final_recommendations(&self) -> Vec<String> {
        let mut recommendations = Vec::new();

        let summary = &self.results_aggregator.matrix_summary;

        if summary.successful_platforms < summary.total_platforms {
            recommendations.push(format!(
                "Platform compatibility: {}/{} platforms passed tests",
                summary.successful_platforms, summary.total_platforms
            ));
        }

        if summary.resource_utilization.avg_cpu_utilization > 80.0 {
            recommendations.push("Consider optimizing for high CPU usage".to_string());
        }

        if summary.total_execution_time > Duration::from_secs(1800) {
            recommendations.push(
                "Matrix execution time is high - consider parallelization improvements".to_string(),
            );
        }

        recommendations
    }
}

/// Complete matrix test results
#[derive(Debug)]
pub struct MatrixTestResults {
    /// Execution summary
    pub summary: MatrixExecutionSummary,
    /// Results by platform
    pub platform_results: HashMap<PlatformTarget, CrossPlatformTestReport>,
    /// Performance analysis
    pub performance_matrix: PerformanceMatrix,
    /// Failure analysis
    pub failure_analysis: FailureAnalysis,
    /// Overall recommendations
    pub recommendations: Vec<String>,
}

impl PlatformMatrix {
    /// Create default platform matrix
    fn default() -> Self {
        let mut platforms = HashMap::new();
        let mut priorities = HashMap::new();
        let mut environment_setup = HashMap::new();

        // Define common platforms
        let common_platforms = [
            PlatformTarget::LinuxX64,
            PlatformTarget::MacOSX64,
            PlatformTarget::WindowsX64,
        ];

        for (i, platform) in common_platforms.iter().enumerate() {
            let config = PlatformTestConfig {
                platform: platform.clone(),
                test_categories: vec![
                    TestCategory::Functionality,
                    TestCategory::Performance,
                    TestCategory::Memory,
                ],
                performance_thresholds: PerformanceThresholds {
                    max_execution_time: 30.0,
                    min_throughput: 100.0,
                    max_memory_usage: 100.0,
                    max_cpu_usage: 80.0,
                    performance_tolerance: 20.0,
                },
                docker_image: None,
                required_packages: Vec::new(),
                environment_variables: HashMap::new(),
                setup_commands: vec!["cargo --version".to_string(), "rustc --version".to_string()],
                cleanup_commands: vec!["cargo clean".to_string()],
                resource_requirements: ResourceRequirements {
                    min_cpu_cores: 2,
                    min_memory_mb: 2048,
                    min_disk_space_mb: 1024,
                    gpu_required: false,
                    network_required: false,
                },
            };

            platforms.insert(platform.clone(), config);
            priorities.insert(platform.clone(), (common_platforms.len() - i) as u32);
            environment_setup.insert(platform.clone(), Vec::new());
        }

        Self {
            platforms,
            dependencies: HashMap::new(),
            priorities,
            environment_setup,
        }
    }
}

impl ResourceManager {
    /// Create new resource manager
    fn new(_monitoringenabled: bool) -> Self {
        Self {
            available_cores: std::thread::available_parallelism()
                .map(|n| n.get())
                .unwrap_or(1),
            available_memory: Self::get_available_memory(),
            allocated_resources: Arc::new(Mutex::new(HashMap::new())),
            _monitoringenabled,
        }
    }

    /// Get available system memory in MB
    fn get_available_memory() -> usize {
        // Simplified - in practice would use system APIs
        8 * 1024 // 8GB default
    }
}

impl ResultsAggregator {
    /// Create new results aggregator
    fn new() -> Self {
        Self {
            platform_results: HashMap::new(),
            matrix_summary: MatrixExecutionSummary {
                total_platforms: 0,
                successful_platforms: 0,
                failed_platforms: 0,
                total_execution_time: Duration::from_secs(0),
                average_execution_time: Duration::from_secs(0),
                resource_utilization: ResourceUtilizationSummary {
                    avg_cpu_utilization: 0.0,
                    peak_cpu_utilization: 0.0,
                    avg_memory_utilization: 0.0,
                    peak_memory_utilization: 0.0,
                    total_compute_time: 0.0,
                },
                ci_environment: CIEnvironmentInfo {
                    ci_system: "Unknown".to_string(),
                    build_id: None,
                    commit_sha: None,
                    branch: None,
                    workflow: None,
                    environment_vars: HashMap::new(),
                },
            },
            performance_matrix: PerformanceMatrix {
                performance_scores: HashMap::new(),
                performance_rankings: HashMap::new(),
                regression_analysis: Vec::new(),
                optimization_opportunities: Vec::new(),
            },
            failure_analysis: FailureAnalysis {
                common_patterns: Vec::new(),
                platform_issues: HashMap::new(),
                root_causes: Vec::new(),
                recommendations: Vec::new(),
            },
        }
    }
}

impl std::fmt::Display for PlatformTarget {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        let name = match self {
            PlatformTarget::LinuxX64 => "linux-x64",
            PlatformTarget::LinuxArm64 => "linux-arm64",
            PlatformTarget::MacOSX64 => "macos-x64",
            PlatformTarget::MacOSArm64 => "macos-arm64",
            PlatformTarget::WindowsX64 => "windows-x64",
            PlatformTarget::WindowsArm64 => "windows-arm64",
            PlatformTarget::WebAssembly => "wasm32",
            PlatformTarget::Custom(name) => name,
        };
        write!(f, "{}", name)
    }
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn test_automated_runner_creation() {
        let config = AutomatedRunnerConfig::default();
        let runner = AutomatedTestRunner::new(config);
        assert_eq!(runner.config.max_parallel_runners, 4);
    }

    #[test]
    fn test_platform_matrix_default() {
        let matrix = PlatformMatrix::default();
        assert!(!matrix.platforms.is_empty());
        assert!(matrix.platforms.contains_key(&PlatformTarget::LinuxX64));
    }

    #[test]
    fn test_resource_manager() {
        let manager = ResourceManager::new(true);
        assert!(manager.available_cores > 0);
        assert!(manager.available_memory > 0);
    }
}