Class: RSpec::Core::Formatters::SnippetExtractor
- Inherits:
-
Object
- Object
- RSpec::Core::Formatters::SnippetExtractor
- Defined in:
- lib/rspec/core/formatters/snippet_extractor.rb
Overview
This class extracts code snippets by looking at the backtrace of the passed error
Defined Under Namespace
Classes: NullConverter
Instance Method Summary collapse
- #lines_around(file, line) ⇒ Object
- #post_process(highlighted, offending_line) ⇒ Object
- #snippet(error) ⇒ Object
- #snippet_for(error_line) ⇒ Object
Instance Method Details
#lines_around(file, line) ⇒ Object
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# File 'lib/rspec/core/formatters/snippet_extractor.rb', line 26 def lines_around(file, line) if File.file?(file) lines = File.read(file).split("\n") min = [0, line-3].max max = [line+1, lines.length-1].min selected_lines = [] selected_lines.join("\n") lines[min..max].join("\n") else "# Couldn't get snippet for #{file}" end end |
#post_process(highlighted, offending_line) ⇒ Object
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# File 'lib/rspec/core/formatters/snippet_extractor.rb', line 39 def post_process(highlighted, offending_line) new_lines = [] highlighted.split("\n").each_with_index do |line, i| new_line = "<span class=\"linenum\">#{offending_line+i-2}</span>#{line}" new_line = "<span class=\"offending\">#{new_line}</span>" if i == 2 new_lines << new_line end new_lines.join("\n") end |
#snippet(error) ⇒ Object
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# File 'lib/rspec/core/formatters/snippet_extractor.rb', line 9 def snippet(error) raw_code, line = snippet_for(error.backtrace[0]) highlighted = @@converter.convert(raw_code, false) highlighted << "\n<span class=\"comment\"># gem install syntax to get syntax highlighting</span>" if @@converter.is_a?(NullConverter) post_process(highlighted, line) end |
#snippet_for(error_line) ⇒ Object
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# File 'lib/rspec/core/formatters/snippet_extractor.rb', line 16 def snippet_for(error_line) if error_line =~ /(.*):(\d+)/ file = $1 line = $2.to_i [lines_around(file, line), line] else ["# Couldn't get snippet for #{error_line}", 1] end end |