singleton method Coverage.running?

カバレッジ測定中かどうかを返します。カバレッジの測定中とは、Coverage.start の呼び出し後から Coverage.result の呼び出し前です。

require 'coverage'
p Coverage.running?    # => false
Coverage.start
p Coverage.running?    # => true
p Coverage.peek_result # => {}
p Coverage.running?    # => true
p Coverage.result      # => {}
p Coverage.running?    # => false