Klear Karma Wiki

Testing Strategy

Executive Summary

This document outlines the comprehensive testing strategy for Klear Karma's digital wellness platform. Our testing approach ensures high-quality, reliable, and secure software delivery through automated testing, continuous integration, and quality assurance practices.

Key Objectives

Quality Assurance: Maintain high code quality and user experience standards
Risk Mitigation: Identify and prevent defects before production deployment
Compliance: Ensure adherence to healthcare data protection regulations
Performance: Validate system performance under various load conditions
Security: Verify security controls and data protection measures
User Experience: Ensure optimal user experience across all platforms

Testing Philosophy

Core Principles

Shift-Left Testing: Integrate testing early in the development lifecycle
Test Automation: Automate repetitive tests for efficiency and consistency
Risk-Based Testing: Prioritize testing based on business risk and impact
Continuous Testing: Implement testing throughout the CI/CD pipeline
Quality Gates: Establish quality criteria that must be met before deployment

Testing Pyramid

    /\     E2E Tests (10%)
   /  \    - User journeys
  /____\   - Integration scenarios
 /      \  
/________\ Integration Tests (20%)
          - API testing
          - Service integration
__________________
Unit Tests (70%)
- Component testing
- Business logic
- Edge cases

Test Types and Strategies

1. Unit Testing

Scope: Individual components, functions, and classes Coverage Target: 90%+ Tools: Jest, React Testing Library, Vitest

Frontend Unit Tests

// Example: Component testing
import { render, screen, fireEvent } from '@testing-library/react';
import { BookingForm } from '../BookingForm';

describe('BookingForm', () => {
  it('should validate required fields', async () => {
    render(<BookingForm />);
    
    const submitButton = screen.getByRole('button', { name: /book appointment/i });
    fireEvent.click(submitButton);
    
    expect(screen.getByText(/practitioner is required/i)).toBeInTheDocument();
    expect(screen.getByText(/date is required/i)).toBeInTheDocument();
  });
  
  it('should submit form with valid data', async () => {
    const mockOnSubmit = jest.fn();
    render(<BookingForm onSubmit={mockOnSubmit} />);
    
    // Fill form and submit
    fireEvent.change(screen.getByLabelText(/practitioner/i), {
      target: { value: 'dr-smith' }
    });
    fireEvent.change(screen.getByLabelText(/date/i), {
      target: { value: '2024-01-15' }
    });
    
    fireEvent.click(screen.getByRole('button', { name: /book appointment/i }));
    
    expect(mockOnSubmit).toHaveBeenCalledWith({
      practitionerId: 'dr-smith',
      date: '2024-01-15'
    });
  });
});

Backend Unit Tests

// Example: Service testing
import { BookingService } from '../services/BookingService';
import { mockPrisma } from '../__mocks__/prisma';

describe('BookingService', () => {
  let bookingService;
  
  beforeEach(() => {
    bookingService = new BookingService(mockPrisma);
  });
  
  describe('createBooking', () => {
    it('should create booking with valid data', async () => {
      const bookingData = {
        userId: 'user-123',
        practitionerId: 'practitioner-456',
        serviceId: 'service-789',
        scheduledAt: new Date('2024-01-15T10:00:00Z')
      };
      
      mockPrisma.booking.create.mockResolvedValue({
        id: 'booking-123',
        ...bookingData,
        status: 'CONFIRMED'
      });
      
      const result = await bookingService.createBooking(bookingData);
      
      expect(result.id).toBe('booking-123');
      expect(result.status).toBe('CONFIRMED');
      expect(mockPrisma.booking.create).toHaveBeenCalledWith({
        data: bookingData
      });
    });
    
    it('should throw error for conflicting time slot', async () => {
      mockPrisma.booking.findFirst.mockResolvedValue({ id: 'existing-booking' });
      
      await expect(bookingService.createBooking({
        practitionerId: 'practitioner-456',
        scheduledAt: new Date('2024-01-15T10:00:00Z')
      })).rejects.toThrow('Time slot not available');
    });
  });
});

2. Integration Testing

Scope: API endpoints, database interactions, external services Coverage Target: 80%+ Tools: Supertest, Test Containers, Postman/Newman

API Integration Tests

// Example: API endpoint testing
import request from 'supertest';
import { app } from '../app';
import { setupTestDatabase, cleanupTestDatabase } from '../test-utils';

describe('Booking API', () => {
  beforeAll(async () => {
    await setupTestDatabase();
  });
  
  afterAll(async () => {
    await cleanupTestDatabase();
  });
  
  describe('POST /api/bookings', () => {
    it('should create booking with valid data', async () => {
      const bookingData = {
        practitionerId: 'practitioner-123',
        serviceId: 'service-456',
        scheduledAt: '2024-01-15T10:00:00Z'
      };
      
      const response = await request(app)
        .post('/api/bookings')
        .set('Authorization', 'Bearer valid-token')
        .send(bookingData)
        .expect(201);
      
      expect(response.body.data.id).toBeDefined();
      expect(response.body.data.status).toBe('CONFIRMED');
    });
    
    it('should return 400 for invalid data', async () => {
      const response = await request(app)
        .post('/api/bookings')
        .set('Authorization', 'Bearer valid-token')
        .send({})
        .expect(400);
      
      expect(response.body.errors).toContain('practitionerId is required');
    });
    
    it('should return 401 for unauthorized request', async () => {
      await request(app)
        .post('/api/bookings')
        .send({})
        .expect(401);
    });
  });
});

Database Integration Tests

// Example: Repository testing
import { PrismaClient } from '@prisma/client';
import { UserRepository } from '../repositories/UserRepository';
import { createTestUser, cleanupTestData } from '../test-utils';

describe('UserRepository', () => {
  let prisma;
  let userRepository;
  
  beforeAll(async () => {
    prisma = new PrismaClient({
      datasources: {
        db: {
          url: process.env.TEST_DATABASE_URL
        }
      }
    });
    userRepository = new UserRepository(prisma);
  });
  
  afterEach(async () => {
    await cleanupTestData(prisma);
  });
  
  afterAll(async () => {
    await prisma.$disconnect();
  });
  
  it('should create user with encrypted password', async () => {
    const userData = {
      email: 'test@example.com',
      password: 'password123',
      firstName: 'John',
      lastName: 'Doe'
    };
    
    const user = await userRepository.create(userData);
    
    expect(user.id).toBeDefined();
    expect(user.email).toBe(userData.email);
    expect(user.password).not.toBe(userData.password); // Should be hashed
    expect(user.emailVerified).toBe(false);
  });
  
  it('should find user by email', async () => {
    const testUser = await createTestUser(prisma);
    
    const foundUser = await userRepository.findByEmail(testUser.email);
    
    expect(foundUser.id).toBe(testUser.id);
    expect(foundUser.email).toBe(testUser.email);
  });
});

3. End-to-End (E2E) Testing

Scope: Complete user workflows and business scenarios Coverage Target: Critical user journeys Tools: Playwright, Cypress

E2E Test Examples

// Example: User booking journey
import { test, expect } from '@playwright/test';

test.describe('Booking Journey', () => {
  test('user can complete booking process', async ({ page }) => {
    // Login
    await page.goto('/login');
    await page.fill('[data-testid="email"]', 'user@example.com');
    await page.fill('[data-testid="password"]', 'password123');
    await page.click('[data-testid="login-button"]');
    
    // Navigate to practitioners
    await page.click('[data-testid="find-practitioners"]');
    await expect(page).toHaveURL('/practitioners');
    
    // Search and select practitioner
    await page.fill('[data-testid="search-input"]', 'Dr. Smith');
    await page.click('[data-testid="search-button"]');
    await page.click('[data-testid="practitioner-card"]:first-child');
    
    // Select service and time
    await page.click('[data-testid="service-consultation"]');
    await page.click('[data-testid="date-picker"]');
    await page.click('[data-testid="date-tomorrow"]');
    await page.click('[data-testid="time-slot-10am"]');
    
    // Complete booking
    await page.click('[data-testid="book-appointment"]');
    await page.fill('[data-testid="notes"]', 'First consultation');
    await page.click('[data-testid="confirm-booking"]');
    
    // Verify booking confirmation
    await expect(page.locator('[data-testid="booking-confirmation"]')).toBeVisible();
    await expect(page.locator('[data-testid="booking-id"]')).toContainText(/BK-\d+/);
  });
  
  test('practitioner can manage availability', async ({ page }) => {
    // Login as practitioner
    await page.goto('/practitioner/login');
    await page.fill('[data-testid="email"]', 'practitioner@example.com');
    await page.fill('[data-testid="password"]', 'password123');
    await page.click('[data-testid="login-button"]');
    
    // Navigate to schedule
    await page.click('[data-testid="schedule-menu"]');
    await expect(page).toHaveURL('/practitioner/schedule');
    
    // Add availability
    await page.click('[data-testid="add-availability"]');
    await page.selectOption('[data-testid="day-select"]', 'monday');
    await page.fill('[data-testid="start-time"]', '09:00');
    await page.fill('[data-testid="end-time"]', '17:00');
    await page.click('[data-testid="save-availability"]');
    
    // Verify availability added
    await expect(page.locator('[data-testid="availability-monday"]')).toContainText('09:00 - 17:00');
  });
});

4. Performance Testing

Scope: Load, stress, and scalability testing Tools: K6, Artillery, JMeter

Load Testing Scripts

// Example: K6 load test
import http from 'k6/http';
import { check, sleep } from 'k6';
import { Rate } from 'k6/metrics';

const errorRate = new Rate('errors');

export let options = {
  stages: [
    { duration: '2m', target: 10 }, // Ramp up
    { duration: '5m', target: 50 }, // Stay at 50 users
    { duration: '2m', target: 100 }, // Ramp up to 100 users
    { duration: '5m', target: 100 }, // Stay at 100 users
    { duration: '2m', target: 0 }, // Ramp down
  ],
  thresholds: {
    http_req_duration: ['p(95)<500'], // 95% of requests under 500ms
    http_req_failed: ['rate<0.1'], // Error rate under 10%
    errors: ['rate<0.1'],
  },
};

export default function() {
  // Test user registration
  let registrationResponse = http.post('https://api.klearkarma.com/auth/register', {
    email: `user${Math.random()}@example.com`,
    password: 'password123',
    firstName: 'Test',
    lastName: 'User'
  });
  
  let registrationSuccess = check(registrationResponse, {
    'registration status is 201': (r) => r.status === 201,
    'registration response time < 500ms': (r) => r.timings.duration < 500,
  });
  
  errorRate.add(!registrationSuccess);
  
  if (registrationSuccess) {
    let token = registrationResponse.json('data.token');
    
    // Test authenticated API calls
    let practitionersResponse = http.get('https://api.klearkarma.com/practitioners', {
      headers: {
        'Authorization': `Bearer ${token}`,
      },
    });
    
    let practitionersSuccess = check(practitionersResponse, {
      'practitioners status is 200': (r) => r.status === 200,
      'practitioners response time < 300ms': (r) => r.timings.duration < 300,
      'practitioners data exists': (r) => r.json('data.length') > 0,
    });
    
    errorRate.add(!practitionersSuccess);
  }
  
  sleep(1);
}

5. Security Testing

Scope: Authentication, authorization, data protection, vulnerability scanning Tools: OWASP ZAP, Burp Suite, npm audit, Snyk

Security Test Cases

// Example: Security testing
import request from 'supertest';
import { app } from '../app';

describe('Security Tests', () => {
  describe('Authentication', () => {
    it('should reject requests without valid token', async () => {
      await request(app)
        .get('/api/users/profile')
        .expect(401);
    });
    
    it('should reject requests with expired token', async () => {
      const expiredToken = 'expired.jwt.token';
      
      await request(app)
        .get('/api/users/profile')
        .set('Authorization', `Bearer ${expiredToken}`)
        .expect(401);
    });
    
    it('should implement rate limiting', async () => {
      const requests = Array(101).fill().map(() => 
        request(app)
          .post('/api/auth/login')
          .send({ email: 'test@example.com', password: 'wrong' })
      );
      
      const responses = await Promise.all(requests);
      const rateLimitedResponses = responses.filter(r => r.status === 429);
      
      expect(rateLimitedResponses.length).toBeGreaterThan(0);
    });
  });
  
  describe('Input Validation', () => {
    it('should sanitize SQL injection attempts', async () => {
      const maliciousInput = "'; DROP TABLE users; --";
      
      const response = await request(app)
        .get('/api/practitioners')
        .query({ search: maliciousInput })
        .set('Authorization', 'Bearer valid-token')
        .expect(200);
      
      // Should return empty results, not cause database error
      expect(response.body.data).toEqual([]);
    });
    
    it('should prevent XSS attacks', async () => {
      const xssPayload = '<script>alert("xss")</script>';
      
      const response = await request(app)
        .post('/api/practitioners/profile')
        .set('Authorization', 'Bearer practitioner-token')
        .send({ bio: xssPayload })
        .expect(400);
      
      expect(response.body.errors).toContain('Invalid characters in bio');
    });
  });
  
  describe('Data Protection', () => {
    it('should not expose sensitive data in responses', async () => {
      const response = await request(app)
        .get('/api/users/profile')
        .set('Authorization', 'Bearer valid-token')
        .expect(200);
      
      expect(response.body.data.password).toBeUndefined();
      expect(response.body.data.passwordHash).toBeUndefined();
    });
    
    it('should encrypt sensitive data at rest', async () => {
      // This would be tested at the database level
      // Verify that PII fields are encrypted in the database
    });
  });
});

6. Accessibility Testing

Scope: WCAG 2.1 AA compliance, screen reader compatibility Tools: axe-core, Lighthouse, WAVE

// Example: Accessibility testing
import { test, expect } from '@playwright/test';
import AxeBuilder from '@axe-core/playwright';

test.describe('Accessibility Tests', () => {
  test('homepage should be accessible', async ({ page }) => {
    await page.goto('/');
    
    const accessibilityScanResults = await new AxeBuilder({ page })
      .withTags(['wcag2a', 'wcag2aa', 'wcag21aa'])
      .analyze();
    
    expect(accessibilityScanResults.violations).toEqual([]);
  });
  
  test('booking form should be keyboard navigable', async ({ page }) => {
    await page.goto('/book-appointment');
    
    // Test keyboard navigation
    await page.keyboard.press('Tab');
    await expect(page.locator('[data-testid="practitioner-select"]')).toBeFocused();
    
    await page.keyboard.press('Tab');
    await expect(page.locator('[data-testid="service-select"]')).toBeFocused();
    
    await page.keyboard.press('Tab');
    await expect(page.locator('[data-testid="date-picker"]')).toBeFocused();
  });
  
  test('should have proper ARIA labels', async ({ page }) => {
    await page.goto('/practitioners');
    
    // Check for proper ARIA labels
    const searchInput = page.locator('[data-testid="search-input"]');
    await expect(searchInput).toHaveAttribute('aria-label', 'Search practitioners');
    
    const filterButton = page.locator('[data-testid="filter-button"]');
    await expect(filterButton).toHaveAttribute('aria-expanded', 'false');
  });
});

Test Environment Management

Environment Configuration

# docker-compose.test.yml
version: '3.8'
services:
  test-db:
    image: postgres:15
    environment:
      POSTGRES_DB: klearkarma_test
      POSTGRES_USER: test_user
      POSTGRES_PASSWORD: test_password
    ports:
      - "5433:5432"
    volumes:
      - test_db_data:/var/lib/postgresql/data
  
  test-redis:
    image: redis:7-alpine
    ports:
      - "6380:6379"
  
  test-api:
    build:
      context: .
      dockerfile: Dockerfile.test
    environment:
      NODE_ENV: test
      DATABASE_URL: postgresql://test_user:test_password@test-db:5432/klearkarma_test
      REDIS_URL: redis://test-redis:6379
    depends_on:
      - test-db
      - test-redis
    volumes:
      - ./src:/app/src
      - ./tests:/app/tests

volumes:
  test_db_data:

Test Data Management

// test-utils/database.js
import { PrismaClient } from '@prisma/client';
import { faker } from '@faker-js/faker';

const prisma = new PrismaClient();

export async function setupTestDatabase() {
  // Run migrations
  await prisma.$executeRaw`CREATE EXTENSION IF NOT EXISTS "uuid-ossp"`;
  
  // Seed test data
  await seedTestData();
}

export async function cleanupTestDatabase() {
  // Clean up in reverse order of dependencies
  await prisma.booking.deleteMany();
  await prisma.practitioner.deleteMany();
  await prisma.user.deleteMany();
}

export async function seedTestData() {
  // Create test users
  const testUsers = await Promise.all(
    Array(10).fill().map(() => 
      prisma.user.create({
        data: {
          email: faker.internet.email(),
          firstName: faker.person.firstName(),
          lastName: faker.person.lastName(),
          passwordHash: '$2b$10$hashedpassword',
          emailVerified: true
        }
      })
    )
  );
  
  // Create test practitioners
  const testPractitioners = await Promise.all(
    Array(5).fill().map(() => 
      prisma.practitioner.create({
        data: {
          email: faker.internet.email(),
          firstName: faker.person.firstName(),
          lastName: faker.person.lastName(),
          specialization: faker.helpers.arrayElement(['Therapy', 'Counseling', 'Coaching']),
          bio: faker.lorem.paragraph(),
          verified: true
        }
      })
    )
  );
  
  return { testUsers, testPractitioners };
}

export function createTestUser(overrides = {}) {
  return {
    email: faker.internet.email(),
    firstName: faker.person.firstName(),
    lastName: faker.person.lastName(),
    passwordHash: '$2b$10$hashedpassword',
    emailVerified: true,
    ...overrides
  };
}

CI/CD Integration

GitHub Actions Workflow

# .github/workflows/test.yml
name: Test Suite

on:
  push:
    branches: [ main, develop ]
  pull_request:
    branches: [ main, develop ]

jobs:
  unit-tests:
    runs-on: ubuntu-latest
    
    services:
      postgres:
        image: postgres:15
        env:
          POSTGRES_PASSWORD: postgres
          POSTGRES_DB: klearkarma_test
        options: >-
          --health-cmd pg_isready
          --health-interval 10s
          --health-timeout 5s
          --health-retries 5
        ports:
          - 5432:5432
      
      redis:
        image: redis:7
        options: >-
          --health-cmd "redis-cli ping"
          --health-interval 10s
          --health-timeout 5s
          --health-retries 5
        ports:
          - 6379:6379
    
    steps:
    - uses: actions/checkout@v4
    
    - name: Setup Node.js
      uses: actions/setup-node@v4
      with:
        node-version: '18'
        cache: 'npm'
    
    - name: Install dependencies
      run: npm ci
    
    - name: Run database migrations
      run: npm run db:migrate
      env:
        DATABASE_URL: postgresql://postgres:postgres@localhost:5432/klearkarma_test
    
    - name: Run unit tests
      run: npm run test:unit
      env:
        NODE_ENV: test
        DATABASE_URL: postgresql://postgres:postgres@localhost:5432/klearkarma_test
        REDIS_URL: redis://localhost:6379
    
    - name: Upload coverage reports
      uses: codecov/codecov-action@v3
      with:
        file: ./coverage/lcov.info
        flags: unittests
        name: codecov-umbrella

  integration-tests:
    runs-on: ubuntu-latest
    needs: unit-tests
    
    steps:
    - uses: actions/checkout@v4
    
    - name: Setup Node.js
      uses: actions/setup-node@v4
      with:
        node-version: '18'
        cache: 'npm'
    
    - name: Install dependencies
      run: npm ci
    
    - name: Start test environment
      run: docker-compose -f docker-compose.test.yml up -d
    
    - name: Wait for services
      run: |
        timeout 60 bash -c 'until docker-compose -f docker-compose.test.yml exec -T test-db pg_isready; do sleep 1; done'
    
    - name: Run integration tests
      run: npm run test:integration
    
    - name: Stop test environment
      run: docker-compose -f docker-compose.test.yml down

  e2e-tests:
    runs-on: ubuntu-latest
    needs: integration-tests
    
    steps:
    - uses: actions/checkout@v4
    
    - name: Setup Node.js
      uses: actions/setup-node@v4
      with:
        node-version: '18'
        cache: 'npm'
    
    - name: Install dependencies
      run: npm ci
    
    - name: Install Playwright
      run: npx playwright install --with-deps
    
    - name: Start application
      run: |
        npm run build
        npm run start:test &
        timeout 60 bash -c 'until curl -f http://localhost:3000/health; do sleep 1; done'
    
    - name: Run E2E tests
      run: npm run test:e2e
    
    - name: Upload test results
      uses: actions/upload-artifact@v3
      if: always()
      with:
        name: playwright-report
        path: playwright-report/
        retention-days: 30

  security-tests:
    runs-on: ubuntu-latest
    
    steps:
    - uses: actions/checkout@v4
    
    - name: Run security audit
      run: npm audit --audit-level moderate
    
    - name: Run Snyk security scan
      uses: snyk/actions/node@master
      env:
        SNYK_TOKEN: ${{ secrets.SNYK_TOKEN }}
      with:
        args: --severity-threshold=high
    
    - name: Run OWASP ZAP scan
      uses: zaproxy/action-baseline@v0.7.0
      with:
        target: 'http://localhost:3000'

Quality Gates

// jest.config.js
module.exports = {
  collectCoverageFrom: [
    'src/**/*.{js,jsx,ts,tsx}',
    '!src/**/*.d.ts',
    '!src/index.js',
    '!src/serviceWorker.js'
  ],
  coverageThreshold: {
    global: {
      branches: 80,
      functions: 80,
      lines: 80,
      statements: 80
    },
    './src/services/': {
      branches: 90,
      functions: 90,
      lines: 90,
      statements: 90
    }
  },
  testMatch: [
    '<rootDir>/src/**/__tests__/**/*.{js,jsx,ts,tsx}',
    '<rootDir>/src/**/?(*.)(spec|test).{js,jsx,ts,tsx}'
  ],
  testEnvironment: 'jsdom',
  setupFilesAfterEnv: ['<rootDir>/src/setupTests.js']
};

Test Reporting and Metrics

Coverage Reporting

// scripts/coverage-report.js
const fs = require('fs');
const path = require('path');

function generateCoverageReport() {
  const coverageData = JSON.parse(
    fs.readFileSync(path.join(__dirname, '../coverage/coverage-final.json'), 'utf8')
  );
  
  const summary = {
    total: {
      lines: { total: 0, covered: 0, pct: 0 },
      functions: { total: 0, covered: 0, pct: 0 },
      statements: { total: 0, covered: 0, pct: 0 },
      branches: { total: 0, covered: 0, pct: 0 }
    },
    files: []
  };
  
  Object.entries(coverageData).forEach(([filePath, data]) => {
    const fileReport = {
      path: filePath,
      lines: {
        total: Object.keys(data.statementMap).length,
        covered: Object.values(data.s).filter(count => count > 0).length
      },
      functions: {
        total: Object.keys(data.fnMap).length,
        covered: Object.values(data.f).filter(count => count > 0).length
      },
      statements: {
        total: Object.keys(data.statementMap).length,
        covered: Object.values(data.s).filter(count => count > 0).length
      },
      branches: {
        total: Object.keys(data.branchMap).length * 2,
        covered: Object.values(data.b).flat().filter(count => count > 0).length
      }
    };
    
    // Calculate percentages
    Object.keys(fileReport).forEach(key => {
      if (typeof fileReport[key] === 'object' && fileReport[key].total) {
        fileReport[key].pct = fileReport[key].total > 0 
          ? Math.round((fileReport[key].covered / fileReport[key].total) * 100)
          : 100;
      }
    });
    
    summary.files.push(fileReport);
    
    // Add to totals
    Object.keys(summary.total).forEach(key => {
      summary.total[key].total += fileReport[key].total;
      summary.total[key].covered += fileReport[key].covered;
    });
  });
  
  // Calculate total percentages
  Object.keys(summary.total).forEach(key => {
    summary.total[key].pct = summary.total[key].total > 0
      ? Math.round((summary.total[key].covered / summary.total[key].total) * 100)
      : 100;
  });
  
  return summary;
}

if (require.main === module) {
  const report = generateCoverageReport();
  console.log('Coverage Summary:');
  console.log(`Lines: ${report.total.lines.pct}% (${report.total.lines.covered}/${report.total.lines.total})`);
  console.log(`Functions: ${report.total.functions.pct}% (${report.total.functions.covered}/${report.total.functions.total})`);
  console.log(`Statements: ${report.total.statements.pct}% (${report.total.statements.covered}/${report.total.statements.total})`);
  console.log(`Branches: ${report.total.branches.pct}% (${report.total.branches.covered}/${report.total.branches.total})`);
}

module.exports = { generateCoverageReport };

Test Metrics Dashboard

// scripts/test-metrics.js
const fs = require('fs');
const path = require('path');

class TestMetrics {
  constructor() {
    this.metrics = {
      testRuns: [],
      coverage: {},
      performance: {},
      flaky: []
    };
  }
  
  recordTestRun(results) {
    const run = {
      timestamp: new Date().toISOString(),
      duration: results.duration,
      passed: results.numPassedTests,
      failed: results.numFailedTests,
      total: results.numTotalTests,
      coverage: results.coverageMap
    };
    
    this.metrics.testRuns.push(run);
    this.saveMetrics();
  }
  
  identifyFlakyTests() {
    const testResults = {};
    
    this.metrics.testRuns.forEach(run => {
      run.testResults?.forEach(test => {
        if (!testResults[test.fullName]) {
          testResults[test.fullName] = [];
        }
        testResults[test.fullName].push(test.status);
      });
    });
    
    const flakyTests = Object.entries(testResults)
      .filter(([name, results]) => {
        const uniqueResults = [...new Set(results)];
        return uniqueResults.length > 1 && results.length >= 5;
      })
      .map(([name, results]) => ({
        name,
        runs: results.length,
        failures: results.filter(r => r === 'failed').length,
        flakyScore: results.filter(r => r === 'failed').length / results.length
      }));
    
    this.metrics.flaky = flakyTests;
    return flakyTests;
  }
  
  generateReport() {
    const recent = this.metrics.testRuns.slice(-10);
    const avgDuration = recent.reduce((sum, run) => sum + run.duration, 0) / recent.length;
    const successRate = recent.reduce((sum, run) => sum + (run.passed / run.total), 0) / recent.length;
    
    return {
      summary: {
        totalRuns: this.metrics.testRuns.length,
        averageDuration: Math.round(avgDuration),
        successRate: Math.round(successRate * 100),
        flakyTests: this.metrics.flaky.length
      },
      trends: {
        duration: recent.map(r => r.duration),
        successRate: recent.map(r => r.passed / r.total)
      },
      flakyTests: this.metrics.flaky.sort((a, b) => b.flakyScore - a.flakyScore)
    };
  }
  
  saveMetrics() {
    fs.writeFileSync(
      path.join(__dirname, '../test-metrics.json'),
      JSON.stringify(this.metrics, null, 2)
    );
  }
  
  loadMetrics() {
    try {
      const data = fs.readFileSync(path.join(__dirname, '../test-metrics.json'), 'utf8');
      this.metrics = JSON.parse(data);
    } catch (error) {
      // File doesn't exist, start with empty metrics
    }
  }
}

module.exports = TestMetrics;

Best Practices and Guidelines

Test Writing Guidelines

Test Naming: Use descriptive test names that explain the expected behavior

// Good
it('should return 400 when email is missing from registration request')

// Bad
it('should fail')

Test Structure: Follow the Arrange-Act-Assert pattern

it('should create booking with valid data', async () => {
  // Arrange
  const bookingData = { /* test data */ };
  const mockUser = await createTestUser();
  
  // Act
  const result = await bookingService.create(bookingData);
  
  // Assert
  expect(result.id).toBeDefined();
  expect(result.status).toBe('CONFIRMED');
});

Test Independence: Each test should be independent and not rely on other tests

beforeEach(async () => {
  await cleanupTestData();
  await seedRequiredData();
});

Mock External Dependencies: Mock external services and APIs

jest.mock('../services/EmailService', () => ({
  sendEmail: jest.fn().mockResolvedValue({ success: true })
}));

Performance Testing Guidelines

Baseline Establishment: Establish performance baselines for critical operations
Realistic Load: Use realistic user behavior patterns in load tests
Environment Parity: Test in environments similar to production
Monitoring: Monitor system resources during performance tests

Security Testing Guidelines

Input Validation: Test all input validation and sanitization
Authentication: Verify authentication and authorization mechanisms
Data Protection: Ensure sensitive data is properly protected
Vulnerability Scanning: Regularly scan for known vulnerabilities

Conclusion

This testing strategy provides a comprehensive framework for ensuring the quality, security, and performance of Klear Karma's digital wellness platform. The multi-layered approach covers:

Unit Testing: Comprehensive component and function testing
Integration Testing: API and service integration validation
End-to-End Testing: Complete user journey verification
Performance Testing: Load and scalability validation
Security Testing: Vulnerability and compliance verification
Accessibility Testing: WCAG compliance and usability validation

Success Metrics

Code Coverage: 90%+ for critical components
Test Execution Time: Under 10 minutes for full test suite
Flaky Test Rate: Less than 2% of total tests
Security Scan: Zero high-severity vulnerabilities
Performance: 95% of requests under 500ms response time

Continuous Improvement

Regular review and update of test strategies
Analysis of test metrics and trends
Integration of new testing tools and techniques
Team training on testing best practices
Feedback incorporation from production incidents

For questions or suggestions regarding the testing strategy, contact the QA team or refer to the internal testing documentation.

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