2.3 Testing PROFESSIONAL-CLOUD-DEVELOPER Practice Questions (Page 5)

Questions 21–22

1. 21application · medium

   A team has a microservice that processes payment transactions. They have comprehensive unit tests for the payment calculation logic. Now they want to verify that the service correctly writes a transaction record to Cloud Spanner and emits a Pub/Sub event when a payment is processed. What type of test should they add?

   • AA unit test that mocks Cloud Spanner and Pub/Sub to verify the service's internal logic.
   • BA smoke test that only checks the service starts up without errors.
   • CAn integration test that runs the service against a real or emulated Cloud Spanner and Pub/Sub to verify the end-to-end flow.
   • DA load test that simulates high transaction volume to ensure the service can handle the write and event emission.
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2. 22foundation · easy

   Which scenario is most appropriate for an integration test?

   • AVerifying that a code change does not break existing functionality
   • BVerifying that a function returns the correct result for a given input
   • CVerifying that an application correctly reads from and writes to a real database
   • DVerifying that a method handles an edge case correctly
   Reveal Solution Discussion Select an answer first