discourse/spec/lib/onebox/json_ld_spec.rb

84 lines
3.3 KiB
Ruby

# frozen_string_literal: true
require 'onebox/json_ld'
describe Onebox::JsonLd do
it 'logs warning and returns an empty hash if received json is invalid' do
invalid_json = "{\"@type\":invalid-json}"
doc = Nokogiri::HTML("<script type=\"application/ld+json\">#{invalid_json}</script>")
Discourse.expects(:warn_exception).with(
instance_of(JSON::ParserError), { message: "Error parsing JSON-LD: #{invalid_json}" }
)
json_ld = described_class.new(doc)
expect(json_ld.data).to eq({})
end
it 'returns an empty hash if there is no JSON-LD script tag' do
doc = Nokogiri::HTML("<script type=\"something else\"></script>")
json_ld = described_class.new(doc)
expect(json_ld.data).to eq({})
end
it 'returns an empty hash if there is no JSON-LD data' do
doc = Nokogiri::HTML("<script type=\"application/ld+json\"></script>")
json_ld = described_class.new(doc)
expect(json_ld.data).to eq({})
end
it 'returns an empty hash if the type of JSON-LD data is not Movie' do
doc = Nokogiri::HTML("<script type=\"application/ld+json\">{\"@type\":\"Something Else\",\"aggregateRating\":{\"@type\":\"AggregateRating\",\"ratingCount\":806928,\"bestRating\":10,\"worstRating\":1}}</script>")
json_ld = described_class.new(doc)
expect(json_ld.data).to eq({})
end
it 'correctly normalizes the properties' do
doc = Nokogiri::HTML(onebox_response('imdb'))
json_ld = described_class.new(doc)
expect(json_ld.data).to eq(expected_movie_hash)
end
it 'does not fail when there is more than one JSON-LD element' do
doc = Nokogiri::HTML(onebox_response('imdb'))
doc.css("body")[0] << "<script type=\"application/ld+json\">{\"@context\":\"http://schema.org\",\"@type\":\"WebPage\",\"url\":\"https:\/\/imdb.com\",\"description\":\"Movies\"}</script>"
Discourse.expects(:warn_exception).never
json_ld = described_class.new(doc)
expect(json_ld.data).to eq(expected_movie_hash)
end
it 'returns first supported type when JSON-LD is an array' do
array_json = '<script type="application/ld+json">[{"@type": "Something Else"}, {"@context":"https://schema.org","@type":"Movie","url":"/title/tt2358891/","name":"La grande bellezza","alternateName":"The Great Beauty"}]</script>'
doc = Nokogiri::HTML(array_json)
json_ld = described_class.new(doc)
expect(json_ld.data).to eq({
description: nil,
duration: nil,
genres: nil,
image: nil,
name: "La grande bellezza",
rating: nil
})
end
it 'does not fail when JSON-LD returns an array with no supported types' do
array_json = '<script type="application/ld+json">[{"@type": "Something Else"}, {"@context":"https://schema.org","@type":"Nothing"},{"@context":"https://schema.org"}]</script>'
doc = Nokogiri::HTML(array_json)
json_ld = described_class.new(doc)
expect(json_ld.data).to eq({})
end
private
def expected_movie_hash
{
name: 'Rudy',
image: 'https://m.media-amazon.com/images/M/MV5BZGUzMDU1YmQtMzBkOS00MTNmLTg5ZDQtZjY5Njk4Njk2MmRlXkEyXkFqcGdeQXVyNjc1NTYyMjg@._V1_.jpg',
description: 'Rudy has always been told that he was too small to play college football. But he is determined to overcome the odds and fulfill his dream of playing for Notre Dame.',
rating: 7.5,
genres: ['Biography', 'Drama', 'Sport'],
duration: '01:54'
}
end
end