# frozen_string_literal: true require 'spec_helper' RSpec.describe Banzai::Pipeline::PlainMarkdownPipeline do using RSpec::Parameterized::TableSyntax describe 'backslash escapes', :aggregate_failures do let_it_be(:project) { create(:project, :public) } let_it_be(:issue) { create(:issue, project: project) } it 'converts all reference punctuation to literals' do reference_chars = Banzai::Filter::MarkdownPreEscapeFilter::REFERENCE_CHARACTERS markdown = reference_chars.split('').map {|char| char.prepend("\\") }.join punctuation = Banzai::Filter::MarkdownPreEscapeFilter::REFERENCE_CHARACTERS.split('') punctuation = punctuation.delete_if {|char| char == '&' } punctuation << '&' result = described_class.call(markdown, project: project) output = result[:output].to_html punctuation.each { |char| expect(output).to include("#{char}") } expect(result[:escaped_literals]).to be_truthy end it 'ensure we handle all the GitLab reference characters', :eager_load do reference_chars = ObjectSpace.each_object(Class).map do |klass| next unless klass.included_modules.include?(Referable) next unless klass.respond_to?(:reference_prefix) next unless klass.reference_prefix.length == 1 klass.reference_prefix end.compact reference_chars.all? do |char| Banzai::Filter::MarkdownPreEscapeFilter::REFERENCE_CHARACTERS.include?(char) end end it 'does not convert non-reference punctuation to spans' do markdown = %q(\"\'\*\+\,\-\.\/\:\;\<\=\>\?\[\]\_\`\{\|\}) + %q[\(\)\\\\] result = described_class.call(markdown, project: project) output = result[:output].to_html expect(output).not_to include('') expect(result[:escaped_literals]).to be_falsey end it 'does not convert other characters to literals' do markdown = %q(\→\A\a\ \3\φ\«) expected = '\→\A\a\ \3\φ\«' result = correct_html_included(markdown, expected) expect(result[:escaped_literals]).to be_falsey end describe 'backslash escapes do not work in code blocks, code spans, autolinks, or raw HTML' do where(:markdown, :expected) do %q(`` \@\! ``) | %q(\@\!) %q( \@\!) | %Q(\\@\\!\n) %Q(~~~\n\\@\\!\n~~~) | %Q(\\@\\!\n) %q() | %q(http://example.com?find=\@) %q[] | %q[] end with_them do it { correct_html_included(markdown, expected) } end end describe 'work in all other contexts, including URLs and link titles, link references, and info strings in fenced code blocks' do let(:markdown) { %Q(``` foo\\@bar\nfoo\n```) } it 'renders correct html' do correct_html_included(markdown, %Q(
foo\n
)) end where(:markdown, :expected) do %q![foo](/bar\@ "\@title")! | %q(
foo) %Q![foo]\n\n[foo]: /bar\\@ "\\@title"! | %q(foo) end with_them do it { correct_html_included(markdown, expected) } end end end def correct_html_included(markdown, expected) result = described_class.call(markdown, {}) expect(result[:output].to_html).to include(expected) result end end