execution_info

# File activesupport/lib/active_support/testing/parallelize_executor.rb, line 72
        def execution_info
          if parallelized?
            "Running #{tests_count} tests in parallel using #{parallel_executor.size} #{parallelize_with}"
          elsif many_workers?
            "Running #{tests_count} tests in a single process (parallelization threshold is #{threshold})"
          end
        end