class Test::Unit::Diff::UnifiedDiffer
Public Instance Methods
diff(options={})
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# File test-unit-3.5.7/lib/test/unit/diff.rb, line 627 def diff(options={}) groups = SequenceMatcher.new(@from, @to).grouped_operations return [] if groups.empty? return [] if same_content?(groups) show_context = options[:show_context] show_context = true if show_context.nil? result = ["--- #{options[:from_label]}".rstrip, "+++ #{options[:to_label]}".rstrip] groups.each do |operations| result << format_summary(operations, show_context) operations.each do |args| operation_tag, from_start, from_end, to_start, to_end = args case operation_tag when :replace result.concat(tag("-", @from[from_start...from_end])) result.concat(tag("+", @to[to_start...to_end])) when :delete result.concat(tag("-", @from[from_start...from_end])) when :insert result.concat(tag("+", @to[to_start...to_end])) when :equal result.concat(tag(" ", @from[from_start...from_end])) end end end result end