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RSpec::Core::Formatters::SnippetExtractor

This class extracts code snippets by looking at the backtrace of the passed error

Public Instance Methods

lines_around(file, line) click to toggle source
    # File lib/rspec/core/formatters/snippet_extractor.rb, line 32
32:         def lines_around(file, line)
33:           if File.file?(file)
34:             lines = File.read(file).split("\n")
35:             min = [0, line-3].max
36:             max = [line+1, lines.length-1].min
37:             selected_lines = []
38:             selected_lines.join("\n")
39:             lines[min..max].join("\n")
40:           else
41:             "# Couldn't get snippet for #{file}"
42:           end
43:         end
post_process(highlighted, offending_line) click to toggle source
    # File lib/rspec/core/formatters/snippet_extractor.rb, line 45
45:         def post_process(highlighted, offending_line)
46:           new_lines = []
47:           highlighted.split("\n").each_with_index do |line, i|
48:             new_line = "<span class=\"linenum\">#{offending_line+i-2}</span>#{line}"
49:             new_line = "<span class=\"offending\">#{new_line}</span>" if i == 2
50:             new_lines << new_line
51:           end
52:           new_lines.join("\n")
53:         end
snippet(backtrace) click to toggle source
    # File lib/rspec/core/formatters/snippet_extractor.rb, line 15
15:         def snippet(backtrace)
16:           raw_code, line = snippet_for(backtrace[0])
17:           highlighted = @@converter.convert(raw_code, false)
18:           highlighted << "\n<span class=\"comment\"># gem install syntax to get syntax highlighting</span>" if @@converter.is_a?(NullConverter)
19:           post_process(highlighted, line)
20:         end
snippet_for(error_line) click to toggle source
    # File lib/rspec/core/formatters/snippet_extractor.rb, line 22
22:         def snippet_for(error_line)
23:           if error_line =~ /(.*):(\d+)/
24:             file = $1
25:             line = $2.to_i
26:             [lines_around(file, line), line]
27:           else
28:             ["# Couldn't get snippet for #{error_line}", 1]
29:           end
30:         end

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