Bird
0
0

Which syntax correctly represents a test case for service coordination in a delivery system?

easy📝 Conceptual Q3 of 15
LLD - Design — Food Delivery System
Which syntax correctly represents a test case for service coordination in a delivery system?
AserviceA.updateStatus = 'delivered'
Bprint('Test delivery speed')
Cif deliveryTime > 5 then alert()
Dassert serviceA.sendUpdate() == serviceB.receiveUpdate()
Step-by-Step Solution
Solution:

  1. Step 1: Analyze each option for test correctness

    assert serviceA.sendUpdate() == serviceB.receiveUpdate() shows an assertion verifying message passing between two services.

  2. Step 2: Check other options for test validity

    Options A, B, and C do not represent valid test assertions or coordination checks.

  3. Final Answer:

    assert serviceA.sendUpdate() == serviceB.receiveUpdate() -> Option D

  4. Quick Check:

    Valid test syntax = assertion comparing service messages [OK]
Quick Trick: Tests must assert expected behavior, not just print or assign [OK]
Common Mistakes:
  • Using print statements instead of assertions
  • Writing invalid conditional syntax
  • Assigning values without verification

Want More Practice?

15+ quiz questions · All difficulty levels · Free

Free Signup - Practice All Questions
More LLD Quizzes
Advanced LLD Concepts - Dependency injection framework - Quiz 7medium Advanced LLD Concepts - Dependency injection framework - Quiz 12easy Design — Chess Game - Special moves (castling, en passant) - Quiz 10hard Design — Food Delivery System - Rating and review system - Quiz 2easy Design — Hotel Booking System - Search and filter design - Quiz 1easy Design — Online Shopping Cart - Order state machine - Quiz 8hard Design — Online Shopping Cart - Order state machine - Quiz 5medium Design — Splitwise (Expense Sharing) - Transaction history - Quiz 2easy Design — Splitwise (Expense Sharing) - Transaction history - Quiz 5medium Design — Splitwise (Expense Sharing) - User, Group, Expense classes - Quiz 2easy