veza/fixtures/scenarios/integration/cross-service-communication.ts
2025-12-03 22:56:50 +01:00

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TypeScript

import { DataRelationManager } from '../../core/utils/data-relations'
import { UserGenerator } from '../../core/generators/users'
import { AudioGenerator } from '../../core/generators/audio'
import { ConversationGenerator } from '../../core/generators/conversations'
import { WebFixtures } from '../../services/web'
import { ChatServerFixtures } from '../../services/chat-server'
import { StreamServerFixtures } from '../../services/stream-server'
import { vezaFaker } from '../../core/utils/faker-config'
import type { User, Audio, Conversation, Message } from '../../core/schemas/database'
/**
* Cross-Service Communication Integration Scenario
*
* Tests the integration and communication between all Veza Platform services
*/
export interface CrossServiceScenarioContext {
testFlow: ServiceFlow
participants: TestParticipant[]
dataFlow: DataFlowStep[]
serviceEndpoints: ServiceEndpoint[]
expectedInteractions: ServiceInteraction[]
validationChecks: ValidationCheck[]
}
export interface ServiceFlow {
name: string
description: string
services: ('web' | 'chat-server' | 'stream-server' | 'backend-api' | 'docs')[]
duration: number // seconds
complexity: 'low' | 'medium' | 'high'
criticalPath: string[]
}
export interface TestParticipant {
user: User
role: 'listener' | 'artist' | 'admin' | 'moderator'
activeServices: string[]
currentActivity: ParticipantActivity
expectedBehavior: ExpectedBehavior[]
}
export interface ParticipantActivity {
type: 'streaming' | 'chatting' | 'browsing' | 'uploading' | 'moderating'
startTime: Date
duration: number // seconds
serviceInvolved: string[]
dataGenerated: ActivityData[]
}
export interface ActivityData {
type: 'audio_stream' | 'chat_message' | 'api_request' | 'user_action'
size: number // bytes
frequency: number // per second
persistence: 'memory' | 'database' | 'cache' | 'file'
}
export interface DataFlowStep {
id: string
description: string
sourceService: string
targetService: string
dataType: 'user_data' | 'audio_data' | 'message_data' | 'metadata' | 'event'
protocol: 'http' | 'websocket' | 'database' | 'redis' | 'file'
expectedLatency: number // ms
expectedThroughput: number // MB/s
errorHandling: ErrorHandlingStrategy
}
export interface ServiceEndpoint {
service: string
endpoint: string
method: 'GET' | 'POST' | 'PUT' | 'DELETE' | 'WS'
expectedCalls: number
averageResponseTime: number // ms
dependencies: string[]
testData: any
}
export interface ServiceInteraction {
id: string
trigger: InteractionTrigger
sequence: InteractionStep[]
expectedResult: string
rollbackStrategy?: string
}
export interface InteractionTrigger {
type: 'user_action' | 'system_event' | 'scheduled_task' | 'external_api'
description: string
initiatingService: string
data: any
}
export interface InteractionStep {
order: number
service: string
action: string
input: any
expectedOutput: any
timeout: number // ms
retryPolicy?: RetryPolicy
}
export interface RetryPolicy {
maxAttempts: number
backoffStrategy: 'linear' | 'exponential'
baseDelay: number // ms
}
export interface ErrorHandlingStrategy {
onTimeout: 'retry' | 'fail' | 'fallback'
onError: 'retry' | 'fail' | 'fallback'
fallbackAction?: string
maxRetries: number
alerting: boolean
}
export interface ExpectedBehavior {
condition: string
action: string
outcome: string
tolerance: number // percentage variance allowed
}
export interface ValidationCheck {
id: string
description: string
type: 'data_consistency' | 'performance' | 'availability' | 'security'
services: string[]
checkFunction: string
expectedResult: any
criticalCheck: boolean
}
/**
* Cross-Service Communication Scenario Generator
*/
export class CrossServiceCommunicationScenario {
/**
* Generate comprehensive cross-service integration scenario
*/
static async setup(): Promise<CrossServiceScenarioContext> {
console.log('🔗 Setting up cross-service communication scenario...')
// Define test flow
const testFlow = this.createTestFlow()
// Generate test participants
console.log('👥 Generating test participants...')
const participants = await this.generateTestParticipants()
// Map data flow between services
console.log('📊 Mapping data flow between services...')
const dataFlow = this.mapDataFlow()
// Define service endpoints
const serviceEndpoints = this.defineServiceEndpoints()
// Create service interactions
console.log('🔄 Creating service interactions...')
const expectedInteractions = await this.createServiceInteractions(participants)
// Setup validation checks
const validationChecks = this.setupValidationChecks()
const context: CrossServiceScenarioContext = {
testFlow,
participants,
dataFlow,
serviceEndpoints,
expectedInteractions,
validationChecks
}
console.log('✅ Cross-service communication scenario setup complete')
console.log(`🎯 Testing ${testFlow.services.length} services with ${participants.length} participants`)
return context
}
/**
* Simulate cross-service integration test
*/
static async simulateIntegrationTest(context: CrossServiceScenarioContext): Promise<{
executionResults: IntegrationTestResult[]
performanceMetrics: PerformanceMetric[]
dataConsistencyReport: ConsistencyReport
serviceHealthReport: ServiceHealthReport
}> {
console.log('🧪 Simulating cross-service integration test...')
const executionResults: IntegrationTestResult[] = []
const performanceMetrics: PerformanceMetric[] = []
// Execute each service interaction
for (const interaction of context.expectedInteractions) {
const result = await this.executeServiceInteraction(interaction, context)
executionResults.push(result)
// Collect performance metrics
const metrics = this.collectPerformanceMetrics(interaction, result)
performanceMetrics.push(...metrics)
}
// Check data consistency across services
const dataConsistencyReport = this.checkDataConsistency(context)
// Generate service health report
const serviceHealthReport = await this.generateServiceHealthReport(context)
console.log('✅ Integration test simulation complete')
return {
executionResults,
performanceMetrics,
dataConsistencyReport,
serviceHealthReport
}
}
/**
* Generate realistic user journey across services
*/
static generateUserJourney(): {
journey: UserJourneyStep[]
expectedDataFlow: ServiceDataFlow[]
validationPoints: JourneyValidationPoint[]
} {
const journey: UserJourneyStep[] = [
{
step: 1,
description: 'User logs in via web interface',
service: 'web',
action: 'authenticate',
expectedServices: ['web', 'backend-api'],
duration: 2000, // ms
data: {
credentials: { email: 'test@example.com', password: 'test123' },
expectedResponse: { token: 'jwt_token', user: {} }
}
},
{
step: 2,
description: 'Load user dashboard with personalized content',
service: 'web',
action: 'load_dashboard',
expectedServices: ['web', 'backend-api', 'stream-server'],
duration: 1500,
data: {
userId: 'user_id',
expectedData: ['user_profile', 'recommendations', 'recent_activity']
}
},
{
step: 3,
description: 'Start streaming an audio track',
service: 'stream-server',
action: 'start_stream',
expectedServices: ['web', 'stream-server'],
duration: 500,
data: {
trackId: 'track_id',
quality: 'high',
expectedResponse: { streamUrl: 'stream_url', metadata: {} }
}
},
{
step: 4,
description: 'Join a chat conversation while streaming',
service: 'chat-server',
action: 'join_conversation',
expectedServices: ['web', 'chat-server'],
duration: 800,
data: {
conversationId: 'conversation_id',
expectedResponse: { messages: [], participants: [] }
}
},
{
step: 5,
description: 'Send a message about the current track',
service: 'chat-server',
action: 'send_message',
expectedServices: ['web', 'chat-server'],
duration: 300,
data: {
content: 'This track is amazing! 🎵',
trackReference: 'track_id',
expectedResponse: { messageId: 'message_id', timestamp: new Date() }
}
},
{
step: 6,
description: 'Create a playlist and add current track',
service: 'backend-api',
action: 'create_playlist',
expectedServices: ['web', 'backend-api'],
duration: 1200,
data: {
playlistData: { name: 'My Favorites', tracks: ['track_id'] },
expectedResponse: { playlistId: 'playlist_id' }
}
}
]
const expectedDataFlow = this.mapJourneyDataFlow(journey)
const validationPoints = this.createJourneyValidationPoints(journey)
return { journey, expectedDataFlow, validationPoints }
}
/**
* Private helper methods
*/
private static createTestFlow(): ServiceFlow {
return {
name: 'Complete Platform Integration',
description: 'End-to-end test covering all major service interactions',
services: ['web', 'chat-server', 'stream-server', 'backend-api'],
duration: 300, // 5 minutes
complexity: 'high',
criticalPath: [
'user_authentication',
'content_loading',
'stream_initialization',
'chat_connection',
'data_synchronization'
]
}
}
private static async generateTestParticipants(): Promise<TestParticipant[]> {
const participants: TestParticipant[] = []
// Generate different types of users
const roles: Array<'listener' | 'artist' | 'admin' | 'moderator'> = ['listener', 'artist', 'admin', 'moderator']
for (const role of roles) {
const user = UserGenerator.generate({
role: role === 'listener' ? 'user' : role,
status: 'active',
withStats: true
})
const participant: TestParticipant = {
user,
role,
activeServices: this.getActiveServicesForRole(role),
currentActivity: this.generateParticipantActivity(role),
expectedBehavior: this.generateExpectedBehavior(role)
}
participants.push(participant)
}
return participants
}
private static mapDataFlow(): DataFlowStep[] {
return [
{
id: 'auth_flow',
description: 'User authentication data flow',
sourceService: 'web',
targetService: 'backend-api',
dataType: 'user_data',
protocol: 'http',
expectedLatency: 200,
expectedThroughput: 0.1,
errorHandling: {
onTimeout: 'retry',
onError: 'fail',
maxRetries: 3,
alerting: true
}
},
{
id: 'stream_init',
description: 'Audio stream initialization',
sourceService: 'web',
targetService: 'stream-server',
dataType: 'audio_data',
protocol: 'websocket',
expectedLatency: 100,
expectedThroughput: 5.0,
errorHandling: {
onTimeout: 'fallback',
onError: 'retry',
fallbackAction: 'lower_quality',
maxRetries: 2,
alerting: true
}
},
{
id: 'chat_message',
description: 'Chat message propagation',
sourceService: 'chat-server',
targetService: 'web',
dataType: 'message_data',
protocol: 'websocket',
expectedLatency: 50,
expectedThroughput: 0.5,
errorHandling: {
onTimeout: 'retry',
onError: 'retry',
maxRetries: 5,
alerting: false
}
},
{
id: 'metadata_sync',
description: 'Metadata synchronization between services',
sourceService: 'stream-server',
targetService: 'backend-api',
dataType: 'metadata',
protocol: 'database',
expectedLatency: 150,
expectedThroughput: 1.0,
errorHandling: {
onTimeout: 'retry',
onError: 'fail',
maxRetries: 3,
alerting: true
}
}
]
}
private static defineServiceEndpoints(): ServiceEndpoint[] {
return [
// Web service endpoints
{
service: 'web',
endpoint: '/api/auth/login',
method: 'POST',
expectedCalls: 4,
averageResponseTime: 200,
dependencies: ['backend-api'],
testData: { email: 'test@example.com', password: 'test123' }
},
{
service: 'web',
endpoint: '/api/dashboard',
method: 'GET',
expectedCalls: 4,
averageResponseTime: 300,
dependencies: ['backend-api', 'stream-server'],
testData: { userId: 'user_id' }
},
// Stream server endpoints
{
service: 'stream-server',
endpoint: '/api/stream/start',
method: 'POST',
expectedCalls: 8,
averageResponseTime: 150,
dependencies: [],
testData: { trackId: 'track_id', quality: 'high' }
},
{
service: 'stream-server',
endpoint: '/ws/stream',
method: 'WS',
expectedCalls: 8,
averageResponseTime: 50,
dependencies: [],
testData: { sessionId: 'session_id' }
},
// Chat server endpoints
{
service: 'chat-server',
endpoint: '/api/conversations',
method: 'GET',
expectedCalls: 6,
averageResponseTime: 100,
dependencies: [],
testData: { userId: 'user_id' }
},
{
service: 'chat-server',
endpoint: '/ws/chat',
method: 'WS',
expectedCalls: 6,
averageResponseTime: 30,
dependencies: [],
testData: { conversationId: 'conversation_id' }
}
]
}
private static async createServiceInteractions(participants: TestParticipant[]): Promise<ServiceInteraction[]> {
const interactions: ServiceInteraction[] = []
// User login and session establishment
interactions.push({
id: 'user_login_flow',
trigger: {
type: 'user_action',
description: 'User attempts to log in',
initiatingService: 'web',
data: { email: 'test@example.com', password: 'test123' }
},
sequence: [
{
order: 1,
service: 'web',
action: 'validate_credentials',
input: { email: 'test@example.com', password: 'test123' },
expectedOutput: { valid: true, userId: 'user_id' },
timeout: 2000
},
{
order: 2,
service: 'backend-api',
action: 'create_session',
input: { userId: 'user_id' },
expectedOutput: { sessionId: 'session_id', token: 'jwt_token' },
timeout: 1000
},
{
order: 3,
service: 'web',
action: 'store_session',
input: { token: 'jwt_token', user: {} },
expectedOutput: { success: true },
timeout: 500
}
],
expectedResult: 'User successfully authenticated and session established'
})
// Audio streaming with chat integration
interactions.push({
id: 'stream_with_chat',
trigger: {
type: 'user_action',
description: 'User starts streaming while in a chat',
initiatingService: 'web',
data: { trackId: 'track_id', conversationId: 'conversation_id' }
},
sequence: [
{
order: 1,
service: 'stream-server',
action: 'initialize_stream',
input: { trackId: 'track_id', userId: 'user_id' },
expectedOutput: { streamUrl: 'stream_url', sessionId: 'stream_session_id' },
timeout: 1000
},
{
order: 2,
service: 'chat-server',
action: 'update_user_activity',
input: { userId: 'user_id', activity: 'streaming', trackId: 'track_id' },
expectedOutput: { success: true },
timeout: 500
},
{
order: 3,
service: 'web',
action: 'sync_ui_state',
input: { streaming: true, chatActive: true },
expectedOutput: { uiUpdated: true },
timeout: 300
}
],
expectedResult: 'User streams audio while maintaining chat connection'
})
// Data synchronization across services
interactions.push({
id: 'data_synchronization',
trigger: {
type: 'system_event',
description: 'User data needs synchronization across services',
initiatingService: 'backend-api',
data: { userId: 'user_id', dataType: 'user_preferences' }
},
sequence: [
{
order: 1,
service: 'backend-api',
action: 'fetch_user_data',
input: { userId: 'user_id' },
expectedOutput: { userData: {} },
timeout: 500
},
{
order: 2,
service: 'stream-server',
action: 'update_user_preferences',
input: { userId: 'user_id', preferences: {} },
expectedOutput: { success: true },
timeout: 300
},
{
order: 3,
service: 'chat-server',
action: 'update_user_profile',
input: { userId: 'user_id', profile: {} },
expectedOutput: { success: true },
timeout: 300
}
],
expectedResult: 'User data synchronized across all services'
})
return interactions
}
private static setupValidationChecks(): ValidationCheck[] {
return [
{
id: 'data_consistency_check',
description: 'Verify user data consistency across all services',
type: 'data_consistency',
services: ['web', 'backend-api', 'chat-server', 'stream-server'],
checkFunction: 'validateUserDataConsistency',
expectedResult: { consistent: true, discrepancies: [] },
criticalCheck: true
},
{
id: 'performance_check',
description: 'Verify response times are within acceptable limits',
type: 'performance',
services: ['web', 'backend-api', 'chat-server', 'stream-server'],
checkFunction: 'validateResponseTimes',
expectedResult: { averageResponseTime: '<300ms', p95ResponseTime: '<500ms' },
criticalCheck: true
},
{
id: 'availability_check',
description: 'Verify all services are available and responding',
type: 'availability',
services: ['web', 'backend-api', 'chat-server', 'stream-server'],
checkFunction: 'validateServiceAvailability',
expectedResult: { availability: '>99%', downtime: '<1s' },
criticalCheck: true
},
{
id: 'security_check',
description: 'Verify secure communication between services',
type: 'security',
services: ['web', 'backend-api', 'chat-server', 'stream-server'],
checkFunction: 'validateSecureCommunication',
expectedResult: { encrypted: true, authenticated: true },
criticalCheck: false
}
]
}
private static getActiveServicesForRole(role: string): string[] {
const serviceMap = {
listener: ['web', 'stream-server', 'chat-server'],
artist: ['web', 'stream-server', 'chat-server', 'backend-api'],
admin: ['web', 'backend-api', 'chat-server', 'stream-server'],
moderator: ['web', 'chat-server', 'backend-api']
}
return serviceMap[role as keyof typeof serviceMap] || ['web']
}
private static generateParticipantActivity(role: string): ParticipantActivity {
const activities = {
listener: {
type: 'streaming' as const,
serviceInvolved: ['web', 'stream-server'],
dataTypes: ['audio_stream', 'user_action']
},
artist: {
type: 'uploading' as const,
serviceInvolved: ['web', 'backend-api', 'stream-server'],
dataTypes: ['audio_data', 'metadata', 'user_action']
},
admin: {
type: 'moderating' as const,
serviceInvolved: ['web', 'backend-api', 'chat-server'],
dataTypes: ['user_action', 'api_request']
},
moderator: {
type: 'moderating' as const,
serviceInvolved: ['web', 'chat-server'],
dataTypes: ['chat_message', 'user_action']
}
}
const activity = activities[role as keyof typeof activities] || activities.listener
return {
type: activity.type,
startTime: new Date(),
duration: vezaFaker.number.int({ min: 60, max: 300 }),
serviceInvolved: activity.serviceInvolved,
dataGenerated: activity.dataTypes.map(type => ({
type: type as any,
size: vezaFaker.number.int({ min: 1024, max: 1048576 }),
frequency: vezaFaker.number.float({ min: 0.1, max: 10 }),
persistence: vezaFaker.helpers.arrayElement(['memory', 'database', 'cache']) as any
}))
}
}
private static generateExpectedBehavior(role: string): ExpectedBehavior[] {
const behaviors = {
listener: [
{
condition: 'Track starts playing',
action: 'Stream data flows from stream-server to web',
outcome: 'Audio plays without buffering',
tolerance: 5
},
{
condition: 'User sends chat message',
action: 'Message propagates through chat-server',
outcome: 'Message appears in real-time',
tolerance: 10
}
],
artist: [
{
condition: 'Track upload initiated',
action: 'File uploaded to backend-api',
outcome: 'Track processing begins',
tolerance: 15
},
{
condition: 'Track metadata saved',
action: 'Data synchronized across services',
outcome: 'Track available for streaming',
tolerance: 20
}
],
admin: [
{
condition: 'Admin action performed',
action: 'Action logged and propagated',
outcome: 'System state updated consistently',
tolerance: 5
}
],
moderator: [
{
condition: 'Moderation action taken',
action: 'Action applied to chat-server',
outcome: 'Content moderated effectively',
tolerance: 10
}
]
}
return behaviors[role as keyof typeof behaviors] || behaviors.listener
}
private static async executeServiceInteraction(
interaction: ServiceInteraction,
context: CrossServiceScenarioContext
): Promise<IntegrationTestResult> {
const startTime = Date.now()
const results: StepResult[] = []
let success = true
let errorMessage = ''
try {
for (const step of interaction.sequence) {
const stepStartTime = Date.now()
// Simulate step execution
const stepSuccess = vezaFaker.datatype.boolean({ probability: 0.95 })
const responseTime = vezaFaker.number.int({ min: 50, max: step.timeout * 0.8 })
results.push({
step: step.order,
service: step.service,
action: step.action,
success: stepSuccess,
responseTime,
output: stepSuccess ? step.expectedOutput : { error: 'Step failed' }
})
if (!stepSuccess) {
success = false
errorMessage = `Step ${step.order} failed in service ${step.service}`
break
}
}
} catch (error) {
success = false
errorMessage = `Interaction failed: ${error}`
}
const totalTime = Date.now() - startTime
return {
interactionId: interaction.id,
success,
totalTime,
steps: results,
errorMessage: errorMessage || ''
}
}
private static collectPerformanceMetrics(
interaction: ServiceInteraction,
result: IntegrationTestResult
): PerformanceMetric[] {
return result.steps.map(step => ({
service: step.service,
action: step.action,
responseTime: step.responseTime,
success: step.success,
timestamp: new Date()
}))
}
private static checkDataConsistency(context: CrossServiceScenarioContext): ConsistencyReport {
// Simulate data consistency check
const checks = context.validationChecks.filter(check => check.type === 'data_consistency')
return {
totalChecks: checks.length,
passedChecks: checks.length - 1, // Simulate one potential issue
failedChecks: 1,
issues: [
{
service: 'chat-server',
description: 'User profile data slightly out of sync',
severity: 'low',
recommendation: 'Trigger data synchronization'
}
]
}
}
private static async generateServiceHealthReport(
context: CrossServiceScenarioContext
): Promise<ServiceHealthReport> {
const services = context.testFlow.services
const healthChecks: ServiceHealth[] = []
for (const service of services) {
healthChecks.push({
service,
status: 'healthy',
responseTime: vezaFaker.number.int({ min: 50, max: 200 }),
uptime: vezaFaker.number.float({ min: 99.5, max: 100 }),
lastCheck: new Date(),
issues: []
})
}
return {
overallHealth: 'healthy',
services: healthChecks,
timestamp: new Date()
}
}
private static mapJourneyDataFlow(journey: UserJourneyStep[]): ServiceDataFlow[] {
return journey.map(step => ({
stepId: step.step,
fromService: 'user',
toService: step.service,
dataType: 'user_action',
expectedServices: step.expectedServices,
dataSize: JSON.stringify(step.data).length,
timing: step.duration
}))
}
private static createJourneyValidationPoints(journey: UserJourneyStep[]): JourneyValidationPoint[] {
return journey.map(step => ({
stepId: step.step,
description: `Validate ${step.description}`,
services: step.expectedServices,
validationType: 'functional',
expectedOutcome: step.data.expectedResponse || step.data.expectedData,
criticalPoint: step.step <= 2 // First two steps are critical
}))
}
}
// Additional interfaces for integration test results
interface IntegrationTestResult {
interactionId: string
success: boolean
totalTime: number
steps: StepResult[]
errorMessage?: string
}
interface StepResult {
step: number
service: string
action: string
success: boolean
responseTime: number
output: any
}
interface PerformanceMetric {
service: string
action: string
responseTime: number
success: boolean
timestamp: Date
}
interface ConsistencyReport {
totalChecks: number
passedChecks: number
failedChecks: number
issues: ConsistencyIssue[]
}
interface ConsistencyIssue {
service: string
description: string
severity: 'low' | 'medium' | 'high'
recommendation: string
}
interface ServiceHealthReport {
overallHealth: 'healthy' | 'degraded' | 'unhealthy'
services: ServiceHealth[]
timestamp: Date
}
interface ServiceHealth {
service: string
status: 'healthy' | 'degraded' | 'unhealthy'
responseTime: number
uptime: number
lastCheck: Date
issues: string[]
}
interface UserJourneyStep {
step: number
description: string
service: string
action: string
expectedServices: string[]
duration: number
data: any
}
interface ServiceDataFlow {
stepId: number
fromService: string
toService: string
dataType: string
expectedServices: string[]
dataSize: number
timing: number
}
interface JourneyValidationPoint {
stepId: number
description: string
services: string[]
validationType: 'functional' | 'performance' | 'security'
expectedOutcome: any
criticalPoint: boolean
}
/**
* Export scenario configuration
*/
export const CROSS_SERVICE_COMMUNICATION_SCENARIO = {
name: 'Cross-Service Communication Integration',
description: 'Comprehensive integration testing of all Veza Platform services',
duration: '5 minutes',
complexity: 'high',
userTypes: ['listener', 'artist', 'admin', 'moderator'],
expectedOutcomes: [
'All services communicate correctly',
'Data consistency maintained across services',
'Performance targets met for cross-service calls',
'Error handling works correctly',
'Service dependencies are properly managed'
],
testCoverage: [
'service_to_service_communication',
'data_flow_validation',
'error_propagation',
'performance_under_integration',
'data_consistency_across_services',
'websocket_coordination',
'database_transaction_coordination'
]
}