Module: RackTest::ValidateDom

Defined in:
lib/capybara/validate_html5.rb

Instance Method Summary collapse

Instance Method Details

#base_href ⇒ Object

Skip HTML validation during base_href calculations.



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# File 'lib/capybara/validate_html5.rb', line 55

def base_href
  skip_html_validation{super}
end

#dom ⇒ Object

If loading the DOM for the first time and not skipping HTML validation, validate the HTML and expect no errors.



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# File 'lib/capybara/validate_html5.rb', line 26

def dom
  unless @dom || @skip_html_validation
    errors = Nokogiri::HTML5(html, max_errors: 10).errors
    unless errors.empty?
      called_from = caller_locations.detect do |loc|
        loc.path !~ %r{lib/(capybara|nokogiri|minitest)}
      end
      html_lines = html.split("\n").map.with_index{|line, i| "#{sprintf("%6i", i+1)}: #{line}"}
      error_info = String.new
      error_info << (<<END_MSG)
invalid HTML on page returned for #{last_request.path}, called from #{called_from.path}:#{called_from.lineno}

END_MSG

      errors.each do |error|
        error_line = error.line
        begin_line = error_line - 3
        end_line = error_line + 3
        begin_line = 0 if begin_line < 0
        error_info << error.to_s << "\n" << html_lines[begin_line..end_line].join("\n") << "\n\n"
      end

      errors.size.must_equal(0, error_info)
    end
  end
  super
end

#skip_html_validation ⇒ Object

Skip HTML validation inside the block.



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# File 'lib/capybara/validate_html5.rb', line 16

def skip_html_validation
  skip = @skip_html_validation
  @skip_html_validation = true
  yield
ensure
  @skip_html_validation = skip
end