Describe the Best Practices for Unit Testing in Apex. PLATFORM-DEVELOPER-II Practice Questions (Page 1)

Questions 1–5

1. 1application · medium

   A developer is writing a test for a trigger that sets the OwnerId of an Account to the running user when the Account is inserted. The test must verify that the trigger works correctly for a standard user. Which test pattern should the developer use?

   • AUse Test.startTest() and Test.stopTest() to insert the Account.
   • BInsert the Account as the default test user and assert the OwnerId.
   • CCreate a standard user, use System.runAs() to insert the Account, and assert the OwnerId.
   • DUse System.assertNotEquals() to verify the OwnerId is not null.
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2. 2foundation · easy

   Which method is used to retrieve the number of SOQL queries that have been used in the current transaction?

   • ATest.getQueries()
   • BLimits.getQueries()
   • CLimits.getQueryRows()
   • DTest.getLimitQueries()
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4. 3foundation · easy

   What is the primary purpose of using Test.startTest() and Test.stopTest() in an Apex test method?

   • ATo mark the beginning and end of the code that should be tested, allowing asynchronous code to run synchronously.
   • BTo ensure that test methods run in a specific order.
   • CTo create test data that is shared across all test methods in a class.
   • DTo isolate test data and reset governor limits between test methods.
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5. 4application · medium

   A developer is writing a test for a class that makes an HTTP callout to an external weather API. The class parses the JSON response and returns the temperature. The developer wants to verify the parsing logic without making a real network call. Which approach should the developer use?

   • AUse System.runAs() to run the callout as a user with API access.
   • BImplement HttpCalloutMock, return a static JSON response, and inject it using Test.setMock(HttpCalloutMock.class, mock).
   • CUse Test.startTest() and Test.stopTest() around the callout to ensure it completes.
   • DCall the external API with a test flag that skips authentication.
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6. 5foundation · easy

   Which annotation can be used on a test method to indicate that it expects a specific exception to be thrown?

   • A@expectedException(MyException.class)
   • B@throws(MyException.class)
   • C@isTest(expectedException=MyException.class)
   • D@test(expectedException=MyException.class)
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