JezK
Edit File: fault-location-detector.rb
# Copyright (C) 2012 Kouhei Sutou <kou@clear-code.com> # # License: Ruby's require "English" module Test module Unit class FaultLocationDetector def initialize(fault, code_snippet_fetcher) @fault = fault @code_snippet_fetcher = code_snippet_fetcher extract_fault_information end def split_backtrace_entry(entry) match_data = /\A(.+):(\d+)(?::(.*))?\z/.match(entry) return nil if match_data.nil? file, line_number, context = match_data.to_a[1..-1] line_number = line_number.to_i if /\Ain `(.+?)'/ =~ context method_name = $1 if /\Ablock (?:\(.+?\) )?in / =~ method_name method_name = $POSTMATCH end else method_name = nil end [file, line_number, context, method_name] end def target?(backtrace_entry) file, line_number, context, method_name = split_backtrace_entry(backtrace_entry) _ = context return false if file.nil? if @fault_source_location target_source_location?(file, line_number, method_name) elsif @fault_method_name target_method?(method_name) else true end end private def target_source_location?(file, line_number, method_name) fault_file, fault_line_number = @fault_source_location return false unless file.end_with?(fault_file) return false if line_number < fault_line_number lines = @code_snippet_fetcher.source(file) return false if lines.nil? base_indent_level = nil fault_line_number.step(lines.size) do |current_line_number| line = lines[current_line_number - 1] current_indent_level = guess_indent_level(line) base_indent_level ||= current_indent_level return true if current_line_number == line_number if current_line_number == fault_line_number break if /(?:\send|\})\s*$/ =~ line else break if current_indent_level == base_indent_level end end false end def target_method?(method_name) @fault_method_name == method_name end def guess_indent_level(line) if /\A(\s*)/ =~ line $1.sub(/\t/, " " * 8).count(" ") else 0 end end def extract_fault_information if @fault.respond_to?(:source_location) @fault_source_location = @fault.source_location else @fault_source_location = nil end if @fault.respond_to?(:method_name) @fault_method_name = @fault.method_name else @fault_method_name = nil end end end end end