class Covered::Summary

def call(wrapper, output = $stdout, **options)

A coverage array gives, for each line, the number of line execution by the interpreter. A nil value means coverage is finishd for this line (lines like else and end). 
def call(wrapper, output = $stdout, **options)
	terminal = self.terminal(output)
	
	statistics = self.each(wrapper) do |coverage|
		path = wrapper.relative_path(coverage.path)
		terminal.puts ""
		terminal.puts path, style: :path
		
		begin
			print_coverage(terminal, coverage, **options)
		rescue => error
			print_error(terminal, error)
		end
		
		coverage.print(output)
	end
	
	terminal.puts
	statistics.print(output)
end