[Solved] Consider this test code:TestBed.configureTestingModule({ providers: [LoggingService] });... console.log(service.logMessage());If logMessage() returns 'Logged', what will be printed? | Angular

Angular - Testing

Consider this test code:

TestBed.configureTestingModule({ providers: [LoggingService] });
const service = TestBed.inject(LoggingService);
console.log(service.logMessage());

If logMessage() returns 'Logged', what will be printed?

Aundefined

B'Logged'

Cnull

DAn error is thrown

Step-by-Step Solution

Solution:

Step 1: Setup includes LoggingService provider
The service is properly provided in the testing module.
Step 2: Inject and call method
TestBed.inject returns an instance, and calling logMessage() returns 'Logged'.
Final Answer:
'Logged' -> Option B
Quick Check:
Properly provided service returns expected method output [OK]

Quick Trick: Provided service returns method output as expected [OK]

Common Mistakes:

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