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-rw-r--r--spec/lib/kramdown/kramdown_spec.rb38
1 files changed, 38 insertions, 0 deletions
diff --git a/spec/lib/kramdown/kramdown_spec.rb b/spec/lib/kramdown/kramdown_spec.rb
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+++ b/spec/lib/kramdown/kramdown_spec.rb
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+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe 'Ensure kramdown detects invalid syntax highlighting formatters' do
+ subject { Kramdown::Document.new(options + "\n" + code).to_html }
+
+ let(:code) do
+ <<-RUBY
+~~~ ruby
+ def what?
+ 42
+ end
+~~~
+ RUBY
+ end
+
+ context 'with invalid formatter' do
+ let(:options) { %({::options auto_ids="false" footnote_nr="5" syntax_highlighter="rouge" syntax_highlighter_opts="{formatter: CSV, line_numbers: true\\}" /}) }
+
+ it 'falls back to standard HTML and disallows CSV' do
+ expect(CSV).not_to receive(:new)
+ expect(::Rouge::Formatters::HTML).to receive(:new).and_call_original
+
+ expect(subject).to be_present
+ end
+ end
+
+ context 'with valid formatter' do
+ let(:options) { %({::options auto_ids="false" footnote_nr="5" syntax_highlighter="rouge" syntax_highlighter_opts="{formatter: HTMLLegacy\\}" /}) }
+
+ it 'allows formatter' do
+ expect(::Rouge::Formatters::HTMLLegacy).to receive(:new).and_call_original
+
+ expect(subject).to be_present
+ end
+ end
+end