lightweight-browser-load-tester/examples/randomization-features.yaml

A lightweight load testing tool using real browsers for streaming applications with DRM support

# Example configuration demonstrating all randomization features
# This shows how to use random functions, randomFrom arrays, and randomFromFile

concurrentUsers: 10
testDuration: 300
rampUpTime: 30
streamingUrl: "https://example-streaming.com/live"
streamingOnly: true

# Resource limits
resourceLimits:
  maxMemoryPerInstance: 512
  maxCpuPercentage: 80
  maxConcurrentInstances: 20

# Parameter injection with randomization examples
requestParameters:
  # Option 1: Built-in random functions
  - target: header
    name: "X-Request-ID"
    valueTemplate: "{{random:uuid}}"
    scope: per-session
  
  - target: header
    name: "X-Session-Token"
    valueTemplate: "session_{{random:alphanumeric}}_{{random:timestamp}}"
    scope: per-session
  
  - target: query
    name: "userId"
    valueTemplate: "{{random:1-10000}}"
    scope: per-session
  
  - target: header
    name: "X-Trace-ID"
    valueTemplate: "{{random:hex}}"
    scope: global
  
  # Option 2: Random selection from arrays (defined in variable context)
  - target: header
    name: "User-Agent"
    valueTemplate: "{{randomFrom:userAgents}}"
    scope: per-session
  
  - target: header
    name: "X-Device-Type"
    valueTemplate: "{{randomFrom:deviceTypes}}"
    scope: per-session
  
  - target: header
    name: "X-Client-Version"
    valueTemplate: "{{randomFrom:clientVersions}}"
    scope: per-session
  
  - target: query
    name: "platform"
    valueTemplate: "{{randomFrom:platforms}}"
    scope: per-session
  
  # Option 3: Random selection from external files
  - target: header
    name: "Authorization"
    valueTemplate: "Bearer {{randomFromFile:./examples/data/auth-tokens.txt}}"
    scope: per-session
  
  - target: header
    name: "X-Device-ID"
    valueTemplate: "{{randomFromFile:./examples/data/device-ids.txt}}"
    scope: per-session
  
  - target: header
    name: "X-Session-Type"
    valueTemplate: "{{randomFromFile:./examples/data/session-types.txt}}"
    scope: per-session
  
  # Combined examples using multiple randomization methods
  - target: header
    name: "X-Complex-Header"
    valueTemplate: "{{randomFrom:environments}}_{{random:uuid}}_{{randomFromFile:./examples/data/session-types.txt}}"
    scope: per-session
  
  - target: body
    name: "metadata"
    valueTemplate: '{"sessionId": "{{random:uuid}}", "deviceType": "{{randomFrom:deviceTypes}}", "timestamp": {{random:timestamp}}}'
    scope: per-session

# Variable context for randomFrom functions
# Note: In actual implementation, this would be passed to the RequestInterceptor constructor
# This is shown here for documentation purposes
variableContext:
  userAgents:
    - "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36"
    - "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36"
    - "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36"
    - "Mozilla/5.0 (iPhone; CPU iPhone OS 17_0 like Mac OS X) AppleWebKit/605.1.15"
    - "Mozilla/5.0 (Android 14; Mobile; rv:121.0) Gecko/121.0 Firefox/121.0"
  
  deviceTypes:
    - "mobile"
    - "tablet"
    - "desktop"
    - "smart-tv"
    - "streaming-device"
  
  clientVersions:
    - "1.0.0"
    - "1.1.0"
    - "1.2.0"
    - "2.0.0"
    - "2.1.0"
  
  platforms:
    - "android"
    - "ios"
    - "web"
    - "roku"
    - "apple-tv"
    - "fire-tv"
  
  environments:
    - "prod"
    - "staging"
    - "dev"

# Prometheus metrics export
prometheus:
  enabled: true
  remoteWriteUrl: "http://localhost:9090/api/v1/write"
  batchSize: 100
  flushInterval: 30