jay-code/src/cli/agents/tester.ts

Streamlined AI CLI orchestration engine with mathematical rigor and enterprise-grade reliability

/**
 * Tester Agent - Specialized in testing and quality assurance
 */

import { BaseAgent } from './base-agent.js';
import type {
  AgentCapabilities,
  AgentConfig,
  AgentEnvironment,
  TaskDefinition,
} from '../../swarm/types.js';
import type { ILogger } from '../../core/logger.js';
import type { IEventBus } from '../../core/event-bus.js';
import type { DistributedMemorySystem } from '../../memory/distributed-memory.js';

// Type definitions for tester activities
interface TestCoverageItem {
  path: string;
  testCount: number;
  coverage: number;
}

interface TestCase {
  name: string;
  steps: string[];
  assertions: string[];
}

interface PerformanceTestCase {
  name: string;
  steps: string[];
  expected: string;
}

interface SecurityIssue {
  type: string;
  severity: string;
  location: string;
  description: string;
  impact: string;
}

interface ApiTestResult {
  endpoint: string;
  status: string;
  responseTime: number;
  statusCode: number;
  error?: string;
}

export class TesterAgent extends BaseAgent {
  constructor(
    id: string,
    config: AgentConfig,
    environment: AgentEnvironment,
    logger: ILogger,
    eventBus: IEventBus,
    memory: DistributedMemorySystem,
  ) {
    super(id, 'tester', config, environment, logger, eventBus, memory);
  }

  protected getDefaultCapabilities(): AgentCapabilities {
    return {
      codeGeneration: true,
      codeReview: true,
      testing: true,
      documentation: true,
      research: false,
      analysis: true,
      webSearch: false,
      apiIntegration: true,
      fileSystem: true,
      terminalAccess: true,
      languages: ['typescript', 'javascript', 'python', 'java', 'csharp', 'go'],
      frameworks: [
        'jest',
        'mocha',
        'cypress',
        'playwright',
        'selenium',
        'pytest',
        'junit',
        'testng',
      ],
      domains: [
        'unit-testing',
        'integration-testing',
        'e2e-testing',
        'performance-testing',
        'security-testing',
        'accessibility-testing',
        'api-testing',
        'mobile-testing',
        'load-testing',
        'test-automation',
      ],
      tools: [
        'test-runner',
        'coverage-analyzer',
        'mock-generator',
        'test-data-factory',
        'assertion-library',
        'browser-automation',
        'api-tester',
        'performance-profiler',
      ],
      maxConcurrentTasks: 4,
      maxMemoryUsage: 1024 * 1024 * 1024, // 1GB
      maxExecutionTime: 1800000, // 30 minutes
      reliability: 0.95,
      speed: 0.8,
      quality: 0.95,
    };
  }

  protected getDefaultConfig(): Partial<AgentConfig> {
    return {
      autonomyLevel: 0.8,
      learningEnabled: true,
      adaptationEnabled: true,
      maxTasksPerHour: 16,
      maxConcurrentTasks: 4,
      timeoutThreshold: 1800000,
      reportingInterval: 30000,
      heartbeatInterval: 12000,
      permissions: [
        'file-read',
        'file-write',
        'terminal-access',
        'browser-control',
        'network-access',
      ],
      trustedAgents: [],
      expertise: {
        'unit-testing': 0.95,
        'integration-testing': 0.9,
        'e2e-testing': 0.88,
        'test-automation': 0.92,
        'performance-testing': 0.85,
        'security-testing': 0.8,
      },
      preferences: {
        testFramework: 'jest',
        coverageThreshold: 80,
        testStrategy: 'pyramid',
        mockingStyle: 'minimal',
        reportFormat: 'detailed',
      },
    };
  }

  override async executeTask(task: TaskDefinition): Promise<any> {
    this.logger.info('Tester executing task', {
      agentId: this.id,
      taskType: task.type,
      taskId: task.id,
    });

    try {
      switch (task.type) {
        case 'unit-testing':
          return await this.createUnitTests(task);
        case 'integration-testing':
          return await this.createIntegrationTests(task);
        case 'e2e-testing':
          return await this.createE2ETests(task);
        case 'performance-testing':
          return await this.performanceTest(task);
        case 'security-testing':
          return await this.securityTest(task);
        case 'api-testing':
          return await this.testAPI(task);
        case 'test-automation':
          return await this.automateTests(task);
        case 'test-analysis':
          return await this.analyzeTests(task);
        default:
          return await this.performGeneralTesting(task);
      }
    } catch (error) {
      this.logger.error('Testing task failed', {
        agentId: this.id,
        taskId: task.id,
        error: error instanceof Error ? error.message : String(error),
      });
      throw error;
    }
  }

  private async createUnitTests(task: TaskDefinition): Promise<any> {
    const code = task.input?.code;
    const framework = task.input?.framework || 'jest';
    const coverage = task.input?.coverage || 80;
    const style = task.input?.style || 'arrange-act-assert';

    this.logger.info('Creating unit tests', {
      framework,
      coverage,
      style,
    });

    const testing = {
      framework,
      style,
      targetCoverage: coverage,
      testFiles: [] as TestCoverageItem[],
      testSuites: [] as any[],
      coverage: {
        lines: 0,
        functions: 0,
        branches: 0,
        statements: 0,
      },
      mocks: [] as any[],
      assertions: [] as any[],
      setup: {
        beforeEach: true,
        afterEach: true,
        fixtures: [] as any[],
      },
      timestamp: new Date(),
    };

    // Simulate unit test creation
    await this.delay(2000);

    testing.testFiles = [
      {
        path: 'tests/unit/user.test.ts',
        testCount: 15,
        coverage: 92,
      },
      {
        path: 'tests/unit/auth.test.ts',
        testCount: 8,
        coverage: 88,
      },
    ];

    testing.coverage = {
      lines: 87,
      functions: 92,
      branches: 78,
      statements: 89,
    };

    return testing;
  }

  private async createIntegrationTests(task: TaskDefinition): Promise<any> {
    const components = task.input?.components || [];
    const database = task.input?.database || false;
    const api = task.input?.api || false;
    const framework = task.input?.framework || 'jest';

    this.logger.info('Creating integration tests', {
      components: components.length,
      database,
      api,
      framework,
    });

    const integration = {
      framework,
      components,
      database,
      api,
      testSuites: [] as any[],
      environment: {
        setup: 'docker-compose',
        database: 'test-db',
        services: [] as any[],
      },
      scenarios: [] as TestCase[],
      dataFlow: [] as any[],
      assertions: [] as any[],
      timestamp: new Date(),
    };

    // Simulate integration test creation
    await this.delay(3000);

    integration.scenarios = [
      {
        name: 'User registration flow',
        steps: ['Create user', 'Send email', 'Verify account'],
        assertions: ['User created', 'Email sent', 'Account active'],
      },
      {
        name: 'Order processing flow',
        steps: ['Create order', 'Process payment', 'Update inventory'],
        assertions: ['Order confirmed', 'Payment processed', 'Stock updated'],
      },
    ];

    return integration;
  }

  private async createE2ETests(task: TaskDefinition): Promise<any> {
    const userJourneys = task.input?.userJourneys || [];
    const browser = task.input?.browser || 'chromium';
    const framework = task.input?.framework || 'playwright';
    const viewport = task.input?.viewport || 'desktop';

    this.logger.info('Creating E2E tests', {
      userJourneys: userJourneys.length,
      browser,
      framework,
      viewport,
    });

    const e2e = {
      framework,
      browser,
      viewport,
      userJourneys,
      testScenarios: [] as PerformanceTestCase[],
      pageObjects: [] as any[],
      selectors: [] as any[],
      assertions: [] as any[],
      configuration: {
        headless: true,
        screenshots: true,
        videos: false,
        retries: 2,
      },
      crossBrowser: {
        chrome: true,
        firefox: true,
        safari: false,
      },
      timestamp: new Date(),
    };

    // Simulate E2E test creation
    await this.delay(4000);

    e2e.testScenarios = [
      {
        name: 'User login and dashboard access',
        steps: [
          'Navigate to login page',
          'Enter credentials',
          'Click login button',
          'Verify dashboard loads',
        ],
        expected: 'User successfully logged in and sees dashboard',
      },
    ];

    return e2e;
  }

  private async performanceTest(task: TaskDefinition): Promise<any> {
    const target = task.input?.target;
    const loadPattern = task.input?.loadPattern || 'ramp-up';
    const duration = task.input?.duration || '5m';
    const virtualUsers = task.input?.virtualUsers || 100;

    this.logger.info('Performing performance test', {
      target,
      loadPattern,
      duration,
      virtualUsers,
    });

    const performance = {
      target,
      loadPattern,
      duration,
      virtualUsers,
      metrics: {
        responseTime: {
          avg: 0,
          p95: 0,
          p99: 0,
          max: 0,
        },
        throughput: 0,
        errorRate: 0,
        resourceUtilization: {
          cpu: 0,
          memory: 0,
          network: 0,
        },
      },
      bottlenecks: [],
      recommendations: [],
      slaCompliance: {
        responseTime: false,
        throughput: false,
        errorRate: false,
      },
      timestamp: new Date(),
    };

    // Simulate performance testing
    await this.delay(6000);

    performance.metrics = {
      responseTime: {
        avg: 245,
        p95: 520,
        p99: 1200,
        max: 2500,
      },
      throughput: 1250,
      errorRate: 0.03,
      resourceUtilization: {
        cpu: 75,
        memory: 68,
        network: 45,
      },
    };

    return performance;
  }

  private async securityTest(task: TaskDefinition): Promise<any> {
    const target = task.input?.target;
    const testTypes = task.input?.types || ['authentication', 'authorization', 'injection'];
    const severity = task.input?.severity || 'all';

    this.logger.info('Performing security test', {
      target,
      testTypes,
      severity,
    });

    const security = {
      target,
      testTypes,
      severity,
      vulnerabilities: [] as SecurityIssue[],
      compliance: {
        owasp: [] as any[],
        gdpr: [] as any[],
        pci: [] as any[],
      },
      penetrationTests: [] as any[],
      recommendations: [] as any[],
      riskLevel: 'unknown',
      timestamp: new Date(),
    };

    // Simulate security testing
    await this.delay(5000);

    security.vulnerabilities = [
      {
        type: 'SQL Injection',
        severity: 'high',
        location: '/api/users/search',
        description: 'Input not properly sanitized',
        impact: 'Data breach potential',
      },
    ];

    security.riskLevel = 'medium';

    return security;
  }

  private async testAPI(task: TaskDefinition): Promise<any> {
    const endpoints = task.input?.endpoints || [];
    const authentication = task.input?.auth || false;
    const environment = task.input?.environment || 'staging';

    this.logger.info('Testing API', {
      endpoints: endpoints.length,
      authentication,
      environment,
    });

    const apiTest = {
      environment,
      authentication,
      endpoints,
      testResults: [] as ApiTestResult[],
      schemas: [] as any[],
      responseValidation: true,
      errorHandling: [] as any[],
      performance: {
        averageResponseTime: 0,
        slowestEndpoint: '',
        fastestEndpoint: '',
      },
      coverage: {
        endpoints: 0,
        statusCodes: [] as any[],
        errorScenarios: 0,
      },
      timestamp: new Date(),
    };

    // Simulate API testing
    await this.delay(3000);

    apiTest.testResults = [
      {
        endpoint: 'GET /api/users',
        status: 'passed',
        responseTime: 150,
        statusCode: 200,
      },
      {
        endpoint: 'POST /api/users',
        status: 'failed',
        responseTime: 300,
        statusCode: 500,
        error: 'Internal server error',
      },
    ];

    return apiTest;
  }

  private async automateTests(task: TaskDefinition): Promise<any> {
    const testSuite = task.input?.testSuite;
    const pipeline = task.input?.pipeline || 'ci/cd';
    const triggers = task.input?.triggers || ['commit', 'pr'];

    this.logger.info('Automating tests', {
      testSuite,
      pipeline,
      triggers,
    });

    const automation = {
      testSuite,
      pipeline,
      triggers,
      configuration: {
        parallel: true,
        retries: 2,
        timeout: '30m',
        artifacts: ['reports', 'screenshots'],
      },
      environments: ['staging', 'production'],
      notifications: {
        slack: true,
        email: true,
        github: true,
      },
      reporting: {
        format: 'junit',
        coverage: true,
        trends: true,
      },
      timestamp: new Date(),
    };

    // Simulate test automation setup
    await this.delay(2000);

    return automation;
  }

  private async analyzeTests(task: TaskDefinition): Promise<any> {
    const testResults = task.input?.results;
    const coverage = task.input?.coverage;
    const timeframe = task.input?.timeframe || '7d';

    this.logger.info('Analyzing tests', {
      timeframe,
    });

    const analysis = {
      timeframe,
      summary: {
        totalTests: 0,
        passed: 0,
        failed: 0,
        skipped: 0,
        flaky: 0,
      },
      trends: {
        passRate: [] as any[],
        executionTime: [] as any[],
        coverage: [] as any[],
      },
      flakyTests: [] as any[],
      slowTests: [] as any[],
      recommendations: [] as any[],
      insights: [] as string[],
      timestamp: new Date(),
    };

    // Simulate test analysis
    await this.delay(1500);

    analysis.summary = {
      totalTests: 245,
      passed: 230,
      failed: 10,
      skipped: 5,
      flaky: 3,
    };

    analysis.insights = [
      'Test execution time increased by 15% this week',
      'Coverage decreased in auth module',
      '3 tests are consistently flaky and need attention',
    ];

    return analysis;
  }

  private async performGeneralTesting(task: TaskDefinition): Promise<any> {
    this.logger.info('Performing general testing', {
      description: task.description,
    });

    // Default to unit testing
    return await this.createUnitTests(task);
  }

  private async delay(ms: number): Promise<void> {
    return new Promise((resolve) => setTimeout(resolve, ms));
  }

  override getAgentStatus(): any {
    return {
      ...super.getAgentStatus(),
      specialization: 'Testing & Quality Assurance',
      testingTypes: [
        'Unit Testing',
        'Integration Testing',
        'E2E Testing',
        'Performance Testing',
        'Security Testing',
        'API Testing',
      ],
      frameworks: this.capabilities.frameworks,
      currentTests: this.getCurrentTasks().length,
      averageTestTime: '15-30 minutes',
      lastTestCompleted: this.getLastTaskCompletedTime(),
      testCoverageGoal: this.config.preferences?.coverageThreshold || 80,
    };
  }
}

export const createTesterAgent = (
  id: string,
  config: Partial<AgentConfig>,
  environment: Partial<AgentEnvironment>,
  logger: ILogger,
  eventBus: IEventBus,
  memory: DistributedMemorySystem,
): TesterAgent => {
  const defaultConfig = {
    autonomyLevel: 0.7,
    learningEnabled: true,
    adaptationEnabled: true,
    maxTasksPerHour: 8,
    maxConcurrentTasks: 2,
    timeoutThreshold: 900000,
    reportingInterval: 180000,
    heartbeatInterval: 60000,
    permissions: [
      'test-execution',
      'code-access',
      'system-access',
      'browser-automation',
      'security-testing',
    ],
    trustedAgents: [],
    expertise: {
      'unit-testing': 0.95,
      'integration-testing': 0.92,
      'e2e-testing': 0.9,
      'performance-testing': 0.88,
      'security-testing': 0.85,
      'api-testing': 0.9,
    },
    preferences: {
      testingApproach: 'comprehensive',
      coverageThreshold: 85,
      testingFramework: 'jest',
      automationLevel: 'high',
    },
  };
  const defaultEnv = {
    runtime: 'deno' as const,
    version: '1.40.0',
    workingDirectory: './agents/tester',
    tempDirectory: './tmp/tester',
    logDirectory: './logs/tester',
    apiEndpoints: {},
    credentials: {},
    availableTools: ['test-runner', 'coverage-analyzer', 'browser-automation', 'api-tester'],
    toolConfigs: {
      testRunner: { framework: 'jest', coverage: true },
      browser: { headless: true, screenshots: true },
    },
  };

  return new TesterAgent(
    id,
    { ...defaultConfig, ...config } as AgentConfig,
    { ...defaultEnv, ...environment } as AgentEnvironment,
    logger,
    eventBus,
    memory,
  );
};