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