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https://github.com/funamitech/mastodon
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258 lines
11 KiB
Ruby
258 lines
11 KiB
Ruby
# frozen_string_literal: true
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require 'rails_helper'
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RSpec.describe FetchLinkCardService, type: :service do
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subject { described_class.new }
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let(:html) { '<!doctype html><title>Hello world</title>' }
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let(:oembed_cache) { nil }
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before do
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stub_request(:get, 'http://example.com/html').to_return(headers: { 'Content-Type' => 'text/html' }, body: html)
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stub_request(:get, 'http://example.com/not-found').to_return(status: 404, headers: { 'Content-Type' => 'text/html' }, body: html)
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stub_request(:get, 'http://example.com/text').to_return(status: 404, headers: { 'Content-Type' => 'text/plain' }, body: 'Hello')
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stub_request(:get, 'http://example.com/redirect').to_return(status: 302, headers: { 'Location' => 'http://example.com/html' })
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stub_request(:get, 'http://example.com/redirect-to-404').to_return(status: 302, headers: { 'Location' => 'http://example.com/not-found' })
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stub_request(:get, 'http://example.com/oembed?url=http://example.com/html').to_return(headers: { 'Content-Type' => 'application/json' }, body: '{ "version": "1.0", "type": "link", "title": "oEmbed title" }')
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stub_request(:get, 'http://example.com/oembed?format=json&url=http://example.com/html').to_return(headers: { 'Content-Type' => 'application/json' }, body: '{ "version": "1.0", "type": "link", "title": "oEmbed title" }')
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stub_request(:get, 'http://example.xn--fiqs8s')
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stub_request(:get, 'http://example.com/日本語')
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stub_request(:get, 'http://example.com/test?data=file.gpx%5E1')
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stub_request(:get, 'http://example.com/test-')
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stub_request(:get, 'http://example.com/sjis').to_return(request_fixture('sjis.txt'))
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stub_request(:get, 'http://example.com/sjis_with_wrong_charset').to_return(request_fixture('sjis_with_wrong_charset.txt'))
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stub_request(:get, 'http://example.com/koi8-r').to_return(request_fixture('koi8-r.txt'))
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stub_request(:get, 'http://example.com/windows-1251').to_return(request_fixture('windows-1251.txt'))
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Rails.cache.write('oembed_endpoint:example.com', oembed_cache) if oembed_cache
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subject.call(status)
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end
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context 'with a local status' do
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context 'with URL of a regular HTML page' do
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let(:status) { Fabricate(:status, text: 'http://example.com/html') }
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it 'creates preview card' do
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expect(status.preview_card).to_not be_nil
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expect(status.preview_card.url).to eq 'http://example.com/html'
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expect(status.preview_card.title).to eq 'Hello world'
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end
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end
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context 'with URL of a page with no title' do
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let(:status) { Fabricate(:status, text: 'http://example.com/html') }
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let(:html) { '<!doctype html><title></title>' }
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it 'does not create a preview card' do
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expect(status.preview_card).to be_nil
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end
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end
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context 'with a URL of a plain-text page' do
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let(:status) { Fabricate(:status, text: 'http://example.com/text') }
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it 'does not create a preview card' do
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expect(status.preview_card).to be_nil
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end
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end
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context 'with multiple URLs' do
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let(:status) { Fabricate(:status, text: 'ftp://example.com http://example.com/html http://example.com/text') }
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it 'fetches the first valid URL' do
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expect(a_request(:get, 'http://example.com/html')).to have_been_made
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end
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it 'does not fetch the second valid URL' do
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expect(a_request(:get, 'http://example.com/text/')).to_not have_been_made
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end
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end
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context 'with a redirect URL' do
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let(:status) { Fabricate(:status, text: 'http://example.com/redirect') }
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it 'follows redirect' do
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expect(a_request(:get, 'http://example.com/redirect')).to have_been_made.once
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expect(a_request(:get, 'http://example.com/html')).to have_been_made.once
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end
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it 'creates preview card' do
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expect(status.preview_card).to_not be_nil
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expect(status.preview_card.url).to eq 'http://example.com/html'
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expect(status.preview_card.title).to eq 'Hello world'
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end
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end
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context 'with a broken redirect URL' do
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let(:status) { Fabricate(:status, text: 'http://example.com/redirect-to-404') }
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it 'follows redirect' do
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expect(a_request(:get, 'http://example.com/redirect-to-404')).to have_been_made.once
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expect(a_request(:get, 'http://example.com/not-found')).to have_been_made.once
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end
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it 'does not create a preview card' do
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expect(status.preview_card).to be_nil
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end
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end
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context 'with a 404 URL' do
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let(:status) { Fabricate(:status, text: 'http://example.com/not-found') }
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it 'does not create a preview card' do
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expect(status.preview_card).to be_nil
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end
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end
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context 'with an IDN URL' do
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let(:status) { Fabricate(:status, text: 'Check out http://example.中国') }
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it 'fetches the URL' do
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expect(a_request(:get, 'http://example.xn--fiqs8s/')).to have_been_made.once
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end
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end
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context 'with a URL of a page in Shift JIS encoding' do
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let(:status) { Fabricate(:status, text: 'Check out http://example.com/sjis') }
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it 'decodes the HTML' do
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expect(status.preview_cards.first.title).to eq('SJISのページ')
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end
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end
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context 'with a URL of a page in Shift JIS encoding labeled as UTF-8' do
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let(:status) { Fabricate(:status, text: 'Check out http://example.com/sjis_with_wrong_charset') }
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it 'decodes the HTML despite the wrong charset header' do
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expect(status.preview_cards.first.title).to eq('SJISのページ')
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end
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end
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context 'with a URL of a page in KOI8-R encoding' do
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let(:status) { Fabricate(:status, text: 'Check out http://example.com/koi8-r') }
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it 'decodes the HTML' do
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expect(status.preview_cards.first.title).to eq('Московя начинаетъ только въ XVI ст. привлекать внимане иностранцевъ.')
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end
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end
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context 'with a URL of a page in Windows-1251 encoding' do
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let(:status) { Fabricate(:status, text: 'Check out http://example.com/windows-1251') }
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it 'decodes the HTML' do
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expect(status.preview_cards.first.title).to eq('сэмпл текст')
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end
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end
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context 'with a Japanese path URL' do
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let(:status) { Fabricate(:status, text: 'テストhttp://example.com/日本語') }
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it 'fetches the URL' do
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expect(a_request(:get, 'http://example.com/日本語')).to have_been_made.once
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end
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end
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context 'with a hyphen-suffixed URL' do
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let(:status) { Fabricate(:status, text: 'test http://example.com/test-') }
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it 'fetches the URL' do
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expect(a_request(:get, 'http://example.com/test-')).to have_been_made.once
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end
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end
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context 'with a caret-suffixed URL' do
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let(:status) { Fabricate(:status, text: 'test http://example.com/test?data=file.gpx^1') }
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it 'fetches the URL' do
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expect(a_request(:get, 'http://example.com/test?data=file.gpx%5E1')).to have_been_made.once
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end
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it 'does not strip the caret before fetching' do
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expect(a_request(:get, 'http://example.com/test?data=file.gpx')).to_not have_been_made
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end
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end
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context 'with a non-isolated URL' do
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let(:status) { Fabricate(:status, text: 'testhttp://example.com/sjis') }
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it 'does not fetch URLs not isolated from their surroundings' do
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expect(a_request(:get, 'http://example.com/sjis')).to_not have_been_made
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end
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end
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context 'with a URL of a page with oEmbed support' do
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let(:html) { '<!doctype html><title>Hello world</title><link rel="alternate" type="application/json+oembed" href="http://example.com/oembed?url=http://example.com/html">' }
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let(:status) { Fabricate(:status, text: 'http://example.com/html') }
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it 'fetches the oEmbed URL' do
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expect(a_request(:get, 'http://example.com/oembed?url=http://example.com/html')).to have_been_made.once
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end
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it 'creates preview card' do
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expect(status.preview_card).to_not be_nil
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expect(status.preview_card.url).to eq 'http://example.com/html'
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expect(status.preview_card.title).to eq 'oEmbed title'
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end
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context 'when oEmbed endpoint cache populated' do
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let(:oembed_cache) { { endpoint: 'http://example.com/oembed?format=json&url={url}', format: :json } }
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it 'uses the cached oEmbed response' do
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expect(a_request(:get, 'http://example.com/oembed?url=http://example.com/html')).to_not have_been_made
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expect(a_request(:get, 'http://example.com/oembed?format=json&url=http://example.com/html')).to have_been_made
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end
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it 'creates preview card' do
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expect(status.preview_card).to_not be_nil
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expect(status.preview_card.url).to eq 'http://example.com/html'
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expect(status.preview_card.title).to eq 'oEmbed title'
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end
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end
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# If the original HTML URL for whatever reason (e.g. DOS protection) redirects to
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# an error page, we can still use the cached oEmbed but should not use the
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# redirect URL on the card.
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context 'when oEmbed endpoint cache populated but page returns 404' do
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let(:status) { Fabricate(:status, text: 'http://example.com/redirect-to-404') }
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let(:oembed_cache) { { endpoint: 'http://example.com/oembed?url=http://example.com/html', format: :json } }
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it 'uses the cached oEmbed response' do
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expect(a_request(:get, 'http://example.com/oembed?url=http://example.com/html')).to have_been_made
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end
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it 'creates preview card' do
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expect(status.preview_card).to_not be_nil
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expect(status.preview_card.title).to eq 'oEmbed title'
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end
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it 'uses the original URL' do
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expect(status.preview_card&.url).to eq 'http://example.com/redirect-to-404'
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end
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end
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end
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end
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context 'with a remote status' do
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let(:status) do
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Fabricate(:status, account: Fabricate(:account, domain: 'example.com'), text: <<-TEXT)
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Habt ihr ein paar gute Links zu <a>foo</a>
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#<span class="tag"><a href="https://quitter.se/tag/wannacry" target="_blank" rel="tag noopener noreferrer" title="https://quitter.se/tag/wannacry">Wannacry</a></span> herumfliegen?
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Ich will mal unter <br> <a href="http://example.com/not-found" target="_blank" rel="noopener noreferrer" title="http://example.com/not-found">http://example.com/not-found</a> was sammeln. !
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<a href="http://sn.jonkman.ca/group/416/id" target="_blank" rel="noopener noreferrer" title="http://sn.jonkman.ca/group/416/id">security</a>
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TEXT
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end
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it 'parses out URLs' do
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expect(a_request(:get, 'http://example.com/not-found')).to have_been_made.once
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end
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it 'ignores URLs to hashtags' do
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expect(a_request(:get, 'https://quitter.se/tag/wannacry')).to_not have_been_made
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end
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end
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end
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