# File lib/rspec/core/formatters/base_formatter.rb, line 99 def format_backtrace(backtrace, example) return "" unless backtrace return backtrace if example.metadata[:full_backtrace] == true if at_exit_index = backtrace.index(RSpec::Core::Runner::AT_EXIT_HOOK_BACKTRACE_LINE) backtrace = backtrace[0, at_exit_index] end cleansed = backtrace.map { |line| backtrace_line(line) }.compact cleansed.empty? ? backtrace : cleansed end