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# frozen_string_literal: true
require 'rails_helper'
describe FetchOEmbedService, type: :service do
subject { described_class.new }
before do
stub_request(:get, "https://host.test/provider.json").to_return(status: 404)
stub_request(:get, "https://host.test/provider.xml").to_return(status: 404)
stub_request(:get, "https://host.test/empty_provider.json").to_return(status: 200)
end
describe 'discover_provider' do
context 'when status code is 200 and MIME type is text/html' do
context 'when OEmbed endpoint contains URL as parameter' do
before do
stub_request(:get, 'https://www.youtube.com/watch?v=IPSbNdBmWKE').to_return(
status: 200,
headers: { 'Content-Type': 'text/html' },
body: request_fixture('oembed_youtube.html'),
)
stub_request(:get, 'https://www.youtube.com/oembed?format=json&url=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DIPSbNdBmWKE').to_return(
status: 200,
headers: { 'Content-Type': 'text/html' },
body: request_fixture('oembed_json_empty.html')
)
end
it 'returns new OEmbed::Provider for JSON provider' do
subject.call('https://www.youtube.com/watch?v=IPSbNdBmWKE')
expect(subject.endpoint_url).to eq 'https://www.youtube.com/oembed?format=json&url=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DIPSbNdBmWKE'
expect(subject.format).to eq :json
end
it 'stores URL template' do
subject.call('https://www.youtube.com/watch?v=IPSbNdBmWKE')
expect(Rails.cache.read('oembed_endpoint:www.youtube.com')[:endpoint]).to eq 'https://www.youtube.com/oembed?format=json&url={url}'
end
end
context 'Both of JSON and XML provider are discoverable' do
before do
stub_request(:get, 'https://host.test/oembed.html').to_return(
status: 200,
headers: { 'Content-Type': 'text/html' },
body: request_fixture('oembed_json_xml.html')
)
end
it 'returns new OEmbed::Provider for JSON provider if :format option is set to :json' do
subject.call('https://host.test/oembed.html', format: :json)
expect(subject.endpoint_url).to eq 'https://host.test/provider.json'
expect(subject.format).to eq :json
end
it 'returns new OEmbed::Provider for XML provider if :format option is set to :xml' do
subject.call('https://host.test/oembed.html', format: :xml)
expect(subject.endpoint_url).to eq 'https://host.test/provider.xml'
expect(subject.format).to eq :xml
end
it 'does not cache OEmbed endpoint' do
subject.call('https://host.test/oembed.html', format: :xml)
expect(Rails.cache.exist?('oembed_endpoint:host.test')).to eq false
end
end
context 'JSON provider is discoverable while XML provider is not' do
before do
stub_request(:get, 'https://host.test/oembed.html').to_return(
status: 200,
headers: { 'Content-Type': 'text/html' },
body: request_fixture('oembed_json.html')
)
end
it 'returns new OEmbed::Provider for JSON provider' do
subject.call('https://host.test/oembed.html')
expect(subject.endpoint_url).to eq 'https://host.test/provider.json'
expect(subject.format).to eq :json
end
it 'does not cache OEmbed endpoint' do
subject.call('https://host.test/oembed.html')
expect(Rails.cache.exist?('oembed_endpoint:host.test')).to eq false
end
end
context 'XML provider is discoverable while JSON provider is not' do
before do
stub_request(:get, 'https://host.test/oembed.html').to_return(
status: 200,
headers: { 'Content-Type': 'text/html' },
body: request_fixture('oembed_xml.html')
)
end
it 'returns new OEmbed::Provider for XML provider' do
subject.call('https://host.test/oembed.html')
expect(subject.endpoint_url).to eq 'https://host.test/provider.xml'
expect(subject.format).to eq :xml
end
it 'does not cache OEmbed endpoint' do
subject.call('https://host.test/oembed.html')
expect(Rails.cache.exist?('oembed_endpoint:host.test')).to eq false
end
end
context 'Invalid XML provider is discoverable while JSON provider is not' do
before do
stub_request(:get, 'https://host.test/oembed.html').to_return(
status: 200,
headers: { 'Content-Type': 'text/html' },
body: request_fixture('oembed_invalid_xml.html')
)
end
it 'returns nil' do
expect(subject.call('https://host.test/oembed.html')).to be_nil
end
end
context 'Neither of JSON and XML provider is discoverable' do
before do
stub_request(:get, 'https://host.test/oembed.html').to_return(
status: 200,
headers: { 'Content-Type': 'text/html' },
body: request_fixture('oembed_undiscoverable.html')
)
end
it 'returns nil' do
expect(subject.call('https://host.test/oembed.html')).to be_nil
end
end
context 'Empty JSON provider is discoverable' do
before do
stub_request(:get, 'https://host.test/oembed.html').to_return(
status: 200,
headers: { 'Content-Type': 'text/html' },
body: request_fixture('oembed_json_empty.html')
)
end
it 'returns new OEmbed::Provider for JSON provider' do
subject.call('https://host.test/oembed.html')
expect(subject.endpoint_url).to eq 'https://host.test/empty_provider.json'
expect(subject.format).to eq :json
end
end
end
context 'when endpoint is cached' do
before do
stub_request(:get, 'http://www.youtube.com/oembed?format=json&url=https://www.youtube.com/watch?v=dqwpQarrDwk').to_return(
status: 200,
headers: { 'Content-Type': 'text/html' },
body: request_fixture('oembed_json_empty.html')
)
end
it 'returns new provider without fetching original URL first' do
subject.call('https://www.youtube.com/watch?v=dqwpQarrDwk', cached_endpoint: { endpoint: 'http://www.youtube.com/oembed?format=json&url={url}', format: :json })
expect(a_request(:get, 'https://www.youtube.com/watch?v=dqwpQarrDwk')).to_not have_been_made
expect(subject.endpoint_url).to eq 'http://www.youtube.com/oembed?format=json&url=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DdqwpQarrDwk'
expect(subject.format).to eq :json
expect(a_request(:get, 'http://www.youtube.com/oembed?format=json&url=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DdqwpQarrDwk')).to have_been_made
end
end
context 'when status code is not 200' do
before do
stub_request(:get, 'https://host.test/oembed.html').to_return(
status: 400,
headers: { 'Content-Type': 'text/html' },
body: request_fixture('oembed_xml.html')
)
end
it 'returns nil' do
expect(subject.call('https://host.test/oembed.html')).to be_nil
end
end
context 'when MIME type is not text/html' do
before do
stub_request(:get, 'https://host.test/oembed.html').to_return(
status: 200,
body: request_fixture('oembed_xml.html')
)
end
it 'returns nil' do
expect(subject.call('https://host.test/oembed.html')).to be_nil
end
end
end
end
|
