Don't mark non required files as "100%" branch coverage

[PragTob]

We have a problem: if files aren't loaded/required we don't have branch data. If they are added through track_files we give it 0/0 branches which we show as 100% coverage (all possible branches are covered).

That math is "wrong" though here because there are branches but we don't know what they are. We should probably count total branches here as "unkown" and establish that in our "math universe" 0/unknown = 0%. We know that none of them is covered because no one even loaded the file(s).

---

The not required files are added here:

simplecov/lib/simplecov.rb

Lines 366 to 376 in c8a4285

	def add_not_loaded_files(result)
	if tracked_files
	result = result.dup
	Dir[tracked_files].each do |file|
	absolute_path = File.expand_path(file)
	result[absolute_path] ||= SimulateCoverage.call(absolute_path)
	end
	end
	result
	end

We could potentially let a source file know that it was "force loaded" or something like that. That'd make it easier to show coverage as "unknown" and to help further distinguish these cases.

[tamesuu]

@PragTob
Hello!

Is this issue active??
I wanto try this issue :)