Firebase in iOS project causing drop in code coverage numbers

Question

Jenkins code coverage of my iOS project is let's say x%. If I comment the following line in app delegate,

[FIRApp configure];

the coverage increases by 5%.Any idea why? Also, How can I stop this line from being executed when the test are being run?

Answer 1

Firebase adds a bunch of files to the app target causing a change in code coverage.

You can see this when you open up the coverage section and expand your target. I bet what is happening is when you add the line of code it knows you need to import Firebase, and is adding in those files, decreasing your code coverage.