File: test_parser.rb

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# frozen_string_literal: true

require_relative "common"

describe "Parser" do
  make_my_diffs_pretty!
  parallelize_me!

  it "should translate valid entities into characters" do
    _(Sanitize.fragment("'é&")).must_equal("'é&")
  end

  it "should translate orphaned ampersands into entities" do
    _(Sanitize.fragment("at&t")).must_equal("at&t")
  end

  it "should not add newlines after tags when serializing a fragment" do
    _(Sanitize.fragment("<div>foo\n\n<p>bar</p><div>\nbaz</div></div><div>quux</div>", elements: ["div", "p"]))
      .must_equal "<div>foo\n\n<p>bar</p><div>\nbaz</div></div><div>quux</div>"
  end

  it "should not have the Nokogiri 1.4.2+ unterminated script/style element bug" do
    _(Sanitize.fragment("foo <script>bar")).must_equal "foo "
    _(Sanitize.fragment("foo <style>bar")).must_equal "foo "
  end

  it 'ambiguous non-tag brackets like "1 > 2 and 2 < 1" should be parsed correctly' do
    _(Sanitize.fragment("1 > 2 and 2 < 1")).must_equal "1 &gt; 2 and 2 &lt; 1"
    _(Sanitize.fragment("OMG HAPPY BIRTHDAY! *<:-D")).must_equal "OMG HAPPY BIRTHDAY! *&lt;:-D"
  end

  describe "when siblings are added after a node during traversal" do
    it "the added siblings should be traversed" do
      html = %(
        <div id="one">
            <div id="one_one">
                <div id="one_one_one"></div>
            </div>
            <div id="one_two"></div>
        </div>
        <div id="two">
            <div id="two_one"><div id="two_one_one"></div></div>
            <div id="two_two"></div>
        </div>
        <div id="three"></div>
      )

      siblings = []

      Sanitize.fragment(html, transformers: ->(env) {
        name = env[:node].name

        if name == "div"
          env[:node].add_next_sibling('<b id="added_' + env[:node]["id"] + '">')
        elsif name == "b"
          siblings << env[:node][:id]
        end

        {node_allowlist: [env[:node]]}
      })

      # All siblings should be traversed, and in the order added.
      _(siblings).must_equal [
        "added_one_one_one",
        "added_one_one",
        "added_one_two",
        "added_one",
        "added_two_one_one",
        "added_two_one",
        "added_two_two",
        "added_two",
        "added_three"
      ]
    end
  end
end