Describe the Implications of Testing Visualforce Controllers and Controller Extensions. PLATFORM-DEVELOPER-II Practice Questions (Page 3)

Questions 11–15

1. 11foundation · easy

   How does the transient keyword affect a Visualforce controller's property in terms of testing?

   • AThe property cannot be asserted in a test
   • BThe property is automatically initialized to null in tests
   • CThe property is only accessible within the test class
   • DThe property is not saved in view state, so its value is not preserved across postbacks
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2. 12expert · hard

   A controller extension adds a method that returns a PageReference to a custom page, but only if the current user has a specific permission. The developer writes a test that runs as a user without the permission and asserts that the method returns null. The test passes. However, the developer also needs to verify the behavior when the user has the permission. What is the most efficient way to test both scenarios?

   • AUse Test.startTest() and Test.stopTest() to isolate the permission check, and run the test as the default user.
   • BWrite two separate test classes, one for each scenario, but only run the unauthorized test in the main test suite.
   • CUse a single test user and mock the permission check by setting a flag on the controller extension.
   • DCreate two test users, one with and one without the permission, and use System.runAs() to test the method with each user.
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4. 13foundation · easy

   How can a test verify that a controller method adds an error message to the page?

   • AInspect the view state for error messages
   • BCheck the return value of the method for a null PageReference
   • CUse ApexPages.getMessages() and assert that the expected message is present
   • DUse System.debug() to print the messages and manually review
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5. 14foundation · easy

   By default, which user's permissions are used when a test method runs?

   • AA guest user with no permissions
   • BThe user who is running the test
   • CA user with all permissions except sharing
   • DThe system administrator
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6. 15foundation · easy

   Which aspect of a Visualforce controller is typically NOT testable in an Apex unit test?

   • AThe value of a public property after invoking a method
   • BThe PageReference returned by an action method
   • CThe exception thrown when invalid input is passed
   • DThe visual appearance of the rendered page
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