discourse/spec/models/post_analyzer_spec.rb

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require 'spec_helper'
describe PostAnalyzer do
let(:default_topic_id) { 12 }
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let(:url) { 'https://twitter.com/evil_trout/status/345954894420787200' }
describe '#cook' do
let(:post_analyzer) {PostAnalyzer.new nil, nil }
let(:raw) { "Here's a tweet:\n#{url}" }
let(:options) { {} }
let(:args) { [raw, options] }
before { Oneboxer.stubs(:onebox) }
it 'fetches the cached onebox for any urls in the post' do
Oneboxer.expects(:cached_onebox).with url
post_analyzer.cook(*args)
end
it 'does not invalidate the onebox cache' do
Oneboxer.expects(:invalidate).with(url).never
post_analyzer.cook(*args)
end
context 'when invalidating oneboxes' do
let(:options) {{ invalidate_oneboxes: true }}
it 'invalidates the oneboxes for urls in the post' do
Oneboxer.expects(:invalidate).with url
post_analyzer.cook(*args)
end
end
end
context "links" do
let(:raw_no_links) { "hello world my name is evil trout" }
let(:raw_one_link_md) { "[jlawr](http://www.imdb.com/name/nm2225369)" }
let(:raw_two_links_html) { "<a href='http://disneyland.disney.go.com/'>disney</a> <a href='http://reddit.com'>reddit</a>"}
let(:raw_three_links) { "http://discourse.org and http://discourse.org/another_url and http://www.imdb.com/name/nm2225369"}
describe "raw_links" do
it "returns a blank collection for a post with no links" do
post_analyzer = PostAnalyzer.new(raw_no_links, default_topic_id)
expect(post_analyzer.raw_links).to be_blank
end
it "finds a link within markdown" do
post_analyzer = PostAnalyzer.new(raw_one_link_md, default_topic_id)
expect(post_analyzer.raw_links).to eq(["http://www.imdb.com/name/nm2225369"])
end
it "can find two links from html" do
post_analyzer = PostAnalyzer.new(raw_two_links_html, default_topic_id)
expect(post_analyzer.raw_links).to eq(["http://disneyland.disney.go.com/", "http://reddit.com"])
end
it "can find three links without markup" do
post_analyzer = PostAnalyzer.new(raw_three_links, default_topic_id)
expect(post_analyzer.raw_links).to eq(["http://discourse.org", "http://discourse.org/another_url", "http://www.imdb.com/name/nm2225369"])
end
end
describe "linked_hosts" do
it "returns blank with no links" do
post_analyzer = PostAnalyzer.new(raw_no_links, default_topic_id)
expect(post_analyzer.linked_hosts).to be_blank
end
it "returns the host and a count for links" do
post_analyzer = PostAnalyzer.new(raw_two_links_html, default_topic_id)
expect(post_analyzer.linked_hosts).to eq({"disneyland.disney.go.com" => 1, "reddit.com" => 1})
end
it "it counts properly with more than one link on the same host" do
post_analyzer = PostAnalyzer.new(raw_three_links, default_topic_id)
expect(post_analyzer.linked_hosts).to eq({"discourse.org" => 1, "www.imdb.com" => 1})
end
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it 'returns blank for ipv6 output' do
post_analyzer = PostAnalyzer.new('PING www.google.com(lb-in-x93.1e100.net) 56 data bytes', default_topic_id)
expect(post_analyzer.linked_hosts).to be_blank
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end
end
end
describe "image_count" do
let(:raw_post_one_image_md) { "![sherlock](http://bbc.co.uk/sherlock.jpg)" }
let(:raw_post_two_images_html) { "<img src='http://discourse.org/logo.png'> <img src='http://bbc.co.uk/sherlock.jpg'>" }
let(:raw_post_with_avatars) { '<img alt="smiley" title=":smiley:" src="/assets/emoji/smiley.png" class="avatar"> <img alt="wink" title=":wink:" src="/assets/emoji/wink.png" class="avatar">' }
let(:raw_post_with_favicon) { '<img src="/assets/favicons/wikipedia.png" class="favicon">' }
let(:raw_post_with_thumbnail) { '<img src="/assets/emoji/smiley.png" class="thumbnail">' }
let(:raw_post_with_two_classy_images) { "<img src='http://discourse.org/logo.png' class='classy'> <img src='http://bbc.co.uk/sherlock.jpg' class='classy'>" }
it "returns 0 images for an empty post" do
post_analyzer = PostAnalyzer.new("Hello world", nil)
expect(post_analyzer.image_count).to eq(0)
end
it "finds images from markdown" do
post_analyzer = PostAnalyzer.new(raw_post_one_image_md, default_topic_id)
expect(post_analyzer.image_count).to eq(1)
end
it "finds images from HTML" do
post_analyzer = PostAnalyzer.new(raw_post_two_images_html, default_topic_id)
expect(post_analyzer.image_count).to eq(2)
end
it "doesn't count avatars as images" do
post_analyzer = PostAnalyzer.new(raw_post_with_avatars, default_topic_id)
expect(post_analyzer.image_count).to eq(0)
end
it "doesn't count favicons as images" do
post_analyzer = PostAnalyzer.new(raw_post_with_favicon, default_topic_id)
expect(post_analyzer.image_count).to eq(0)
end
it "doesn't count thumbnails as images" do
post_analyzer = PostAnalyzer.new(raw_post_with_thumbnail, default_topic_id)
expect(post_analyzer.image_count).to eq(0)
end
it "doesn't count whitelisted images" do
Post.stubs(:white_listed_image_classes).returns(["classy"])
post_analyzer = PostAnalyzer.new(raw_post_with_two_classy_images, default_topic_id)
expect(post_analyzer.image_count).to eq(0)
end
end
describe "link_count" do
let(:raw_post_one_link_md) { "[sherlock](http://www.bbc.co.uk/programmes/b018ttws)" }
let(:raw_post_two_links_html) { "<a href='http://discourse.org'>discourse</a> <a href='http://twitter.com'>twitter</a>" }
let(:raw_post_with_mentions) { "hello @novemberkilo how are you doing?" }
it "returns 0 links for an empty post" do
post_analyzer = PostAnalyzer.new("Hello world", nil)
expect(post_analyzer.link_count).to eq(0)
end
it "returns 0 links for a post with mentions" do
post_analyzer = PostAnalyzer.new(raw_post_with_mentions, default_topic_id)
expect(post_analyzer.link_count).to eq(0)
end
it "finds links from markdown" do
Oneboxer.stubs :onebox
post_analyzer = PostAnalyzer.new(raw_post_one_link_md, default_topic_id)
expect(post_analyzer.link_count).to eq(1)
end
it "finds links from HTML" do
post_analyzer = PostAnalyzer.new(raw_post_two_links_html, default_topic_id)
expect(post_analyzer.link_count).to eq(2)
end
end
describe "raw_mentions" do
it "returns an empty array with no matches" do
post_analyzer = PostAnalyzer.new("Hello Jake and Finn!", default_topic_id)
expect(post_analyzer.raw_mentions).to eq([])
end
it "returns lowercase unique versions of the mentions" do
post_analyzer = PostAnalyzer.new("@Jake @Finn @Jake", default_topic_id)
expect(post_analyzer.raw_mentions).to eq(['jake', 'finn'])
end
it "ignores pre" do
post_analyzer = PostAnalyzer.new("<pre>@Jake</pre> @Finn", default_topic_id)
expect(post_analyzer.raw_mentions).to eq(['finn'])
end
it "catches content between pre tags" do
post_analyzer = PostAnalyzer.new("<pre>hello</pre> @Finn <pre></pre>", default_topic_id)
expect(post_analyzer.raw_mentions).to eq(['finn'])
end
it "ignores code" do
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post_analyzer = PostAnalyzer.new("@Jake `@Finn`", default_topic_id)
expect(post_analyzer.raw_mentions).to eq(['jake'])
end
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it "ignores code in markdown-formatted code blocks" do
post_analyzer = PostAnalyzer.new(" @Jake @Finn\n@Ryan", default_topic_id)
expect(post_analyzer.raw_mentions).to eq(['ryan'])
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end
it "ignores quotes" do
post_analyzer = PostAnalyzer.new("[quote=\"Evil Trout\"]@Jake[/quote] @Finn", default_topic_id)
expect(post_analyzer.raw_mentions).to eq(['finn'])
end
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it "ignores oneboxes" do
post_analyzer = PostAnalyzer.new("Hello @Jake\n#{url}", default_topic_id)
post_analyzer.stubs(:cook).returns("<p>Hello <span class=\"mention\">@Jake</span><br><a href=\"https://twitter.com/evil_trout/status/345954894420787200\" class=\"onebox\" target=\"_blank\" rel=\"nofollow\">@Finn</a></p>")
expect(post_analyzer.raw_mentions).to eq(['jake'])
end
it "handles underscore in username" do
post_analyzer = PostAnalyzer.new("@Jake @Finn @Jake_Old", default_topic_id)
expect(post_analyzer.raw_mentions).to eq(['jake', 'finn', 'jake_old'])
end
end
end