Interview Questions
Built-in reporters include: 1) spec - hierarchical view, 2) dot - minimal dots output, 3) nyan - fun nyan cat reporter, 4) tap - TAP output, 5) json - JSON format, 6) list - simple list, 7) min - minimalistic output.
Reporter configuration: 1) Use --reporter flag in CLI, 2) Configure in mocha.opts, 3) Set in package.json, 4) Specify reporter options, 5) Enable multiple reporters. Example: mocha --reporter spec
Spec reporter: 1) Provides hierarchical view, 2) Shows nested describe blocks, 3) Indicates test status, 4) Displays execution time, 5) Best for development and debugging. Default reporter for readability.
Failure output handling: 1) Display error messages, 2) Show stack traces, 3) Format error details, 4) Include test context, 5) Highlight failure location. Important for debugging.
JSON reporter: 1) Machine-readable output, 2) CI/CD integration, 3) Custom processing, 4) Report generation, 5) Data analysis. Useful for automated processing.
Output customization: 1) Select appropriate reporter, 2) Configure reporter options, 3) Set output colors, 4) Format error messages, 5) Control detail level.
TAP reporter: 1) Test Anything Protocol format, 2) Integration with TAP consumers, 3) Standard test output, 4) Tool compatibility, 5) Pipeline integration. Used for tool interoperability.
Multiple reporters: 1) Use reporter packages, 2) Configure output paths, 3) Specify reporter options, 4) Handle different formats, 5) Manage output files. Useful for different needs.
Reporter options: 1) Customize output format, 2) Set output file paths, 3) Configure colors, 4) Control detail level, 5) Set specific behaviors. Enables reporter customization.
Duration reporting: 1) Configure time display, 2) Set slow test threshold, 3) Show execution times, 4) Highlight slow tests, 5) Track test performance. Important for optimization.
Custom reporter patterns: 1) Extend Base reporter, 2) Implement event handlers, 3) Format output, 4) Handle test states, 5) Manage reporting lifecycle. Creates specialized reporting.
HTML reporting: 1) Use mochawesome reporter, 2) Configure report options, 3) Style reports, 4) Include test details, 5) Generate interactive reports. Creates visual reports.
Analytics reporting: 1) Collect test metrics, 2) Generate statistics, 3) Track trends, 4) Create visualizations, 5) Monitor performance. Important for test insights.
Parallel reporting: 1) Aggregate results, 2) Handle concurrent output, 3) Synchronize reporting, 4) Manage file output, 5) Combine test results. Important for parallel execution.
Error reporting patterns: 1) Format error messages, 2) Include context, 3) Stack trace handling, 4) Group related errors, 5) Error categorization. Improves debugging.
Coverage reporting: 1) Configure coverage tools, 2) Generate reports, 3) Set thresholds, 4) Track coverage metrics, 5) Monitor trends. Important for test quality.
CI/CD reporting: 1) Machine-readable output, 2) Build integration, 3) Artifact generation, 4) Status reporting, 5) Pipeline feedback. Essential for automation.
Metadata reporting: 1) Collect test info, 2) Track custom data, 3) Include environment details, 4) Report test context, 5) Handle custom fields. Enhances test information.
Real-time reporting: 1) Stream test results, 2) Live updates, 3) Progress indication, 4) Status notifications, 5) Immediate feedback. Important for monitoring.
Performance reporting: 1) Track execution times, 2) Monitor resources, 3) Report bottlenecks, 4) Generate trends, 5) Analyze metrics. Important for optimization.
Advanced reporter patterns: 1) Complex event handling, 2) Custom formatters, 3) Integration features, 4) Advanced analytics, 5) Custom protocols. Creates specialized solutions.
Distributed reporting: 1) Aggregate results, 2) Synchronize data, 3) Handle partial results, 4) Manage consistency, 5) Report consolidation. Important for distributed testing.
Monitoring integration: 1) Metrics export, 2) Alert integration, 3) Dashboard creation, 4) Trend analysis, 5) System monitoring. Important for observability.
Compliance reporting: 1) Audit trails, 2) Required formats, 3) Policy verification, 4) Evidence collection, 5) Regulatory requirements. Important for regulations.
Analytics platforms: 1) Data collection, 2) Custom metrics, 3) Analysis tools, 4) Visualization creation, 5) Insight generation. Creates comprehensive analytics.
Security reporting: 1) Vulnerability tracking, 2) Security metrics, 3) Compliance checks, 4) Risk assessment, 5) Security monitoring. Important for security.
Visualization strategies: 1) Custom charts, 2) Interactive reports, 3) Data exploration, 4) Trend visualization, 5) Performance graphs. Enhances understanding.
Error analysis: 1) Pattern detection, 2) Root cause analysis, 3) Error correlation, 4) Impact assessment, 5) Resolution tracking. Improves debugging.
Dashboard patterns: 1) Custom metrics, 2) Real-time updates, 3) Interactive features, 4) Data visualization, 5) Status monitoring. Creates comprehensive views.