discourse/spec/components/oneboxer_spec.rb

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require 'spec_helper'
require 'oneboxer'
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describe "Dynamic Oneboxer" do
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class DummyDynamicOnebox < Oneboxer::BaseOnebox
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matcher do
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/^https?:\/\/dummy2.localhost/
end
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def onebox
"dummy2!"
end
end
before do
Oneboxer.add_onebox DummyDynamicOnebox
@dummy_onebox_url = "http://dummy2.localhost/dummy-object"
end
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context 'find onebox for url' do
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it 'returns blank with an unknown url' do
Oneboxer.onebox_for_url('http://asdfasdfasdfasdf.asdf').should be_blank
end
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it 'returns something when matched' do
Oneboxer.onebox_for_url(@dummy_onebox_url).should be_present
end
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it 'returns an instance of our class when matched' do
Oneboxer.onebox_for_url(@dummy_onebox_url).kind_of?(DummyDynamicOnebox).should be_true
end
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end
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end
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describe Oneboxer do
# A class to help us test
class DummyOnebox < Oneboxer::BaseOnebox
matcher /^https?:\/\/dummy.localhost/
def onebox
"dummy!"
end
end
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before do
Oneboxer.add_onebox DummyOnebox
@dummy_onebox_url = "http://dummy.localhost/dummy-object"
end
it 'should have matchers set up by default' do
Oneboxer.matchers.should be_present
end
context 'find onebox for url' do
it 'returns blank with an unknown url' do
Oneboxer.onebox_for_url('http://asdfasdfasdfasdf.asdf').should be_blank
end
it 'returns something when matched' do
Oneboxer.onebox_for_url(@dummy_onebox_url).should be_present
end
it 'returns an instance of our class when matched' do
Oneboxer.onebox_for_url(@dummy_onebox_url).kind_of?(DummyOnebox).should be_true
end
end
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describe '#nice_host' do
it 'strips www from the domain' do
DummyOnebox.new('http://www.cnn.com/thing').nice_host.should eq 'cnn.com'
end
it 'respects double TLDs' do
DummyOnebox.new('http://news.bbc.co.uk/thing').nice_host.should eq 'news.bbc.co.uk'
end
it 'returns an empty string if the URL is bogus' do
DummyOnebox.new('whatever').nice_host.should eq ''
end
it 'returns an empty string if the URL unparsable' do
DummyOnebox.new(nil).nice_host.should eq ''
end
end
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context 'without caching' do
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it 'calls the onebox method of our matched class' do
Oneboxer.onebox_nocache(@dummy_onebox_url).should == 'dummy!'
end
end
context 'with caching' do
context 'initial cache is empty' do
it 'has no OneboxRender records' do
OneboxRender.count.should == 0
end
it 'calls the onebox_nocache method if there is no cache record yet' do
Oneboxer.expects(:onebox_nocache).with(@dummy_onebox_url).once
Oneboxer.onebox(@dummy_onebox_url)
end
end
context 'caching result' do
before do
@post = Fabricate(:post)
@result = Oneboxer.onebox(@dummy_onebox_url, post_id: @post.id)
@onebox_render = OneboxRender.where(url: @dummy_onebox_url).first
end
it "returns the correct result" do
@result.should == 'dummy!'
end
it "created a OneboxRender record with the url" do
@onebox_render.should be_present
end
it "created a OneboxRender record with the url" do
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@onebox_render.url.should == @dummy_onebox_url
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end
it "associated the render with a post" do
@onebox_render.posts.should == [@post]
end
it "has an expires_at value" do
@onebox_render.expires_at.should be_present
end
it "doesn't call onebox_nocache on a cache hit" do
Oneboxer.expects(:onebox_nocache).never
Oneboxer.onebox(@dummy_onebox_url).should == 'dummy!'
end
context 'invalidating cache' do
it "deletes the onebox render" do
Oneboxer.expects(:onebox_nocache).once.returns('new cache value!')
Oneboxer.onebox(@dummy_onebox_url, invalidate_oneboxes: true).should == 'new cache value!'
end
end
end
end
context 'each_onebox_link' do
before do
@html = "<a href='http://discourse.org' class='onebox'>Discourse Link</a>"
end
it 'yields each url and element when given a string' do
result = Oneboxer.each_onebox_link(@html) do |url, element|
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element.is_a?(Nokogiri::XML::Element).should be_true
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url.should == 'http://discourse.org'
end
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result.kind_of?(Nokogiri::HTML::Document).should be_true
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end
it 'yields each url and element when given a doc' do
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doc = Nokogiri::HTML(@html)
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Oneboxer.each_onebox_link(doc) do |url, element|
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element.is_a?(Nokogiri::XML::Element).should be_true
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url.should == 'http://discourse.org'
end
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end
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end
end