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-rw-r--r--spec/lib/atom_serializer_spec.rb1591
1 files changed, 1470 insertions, 121 deletions
diff --git a/spec/lib/atom_serializer_spec.rb b/spec/lib/atom_serializer_spec.rb
index cfca82a28..c998d55ed 100644
--- a/spec/lib/atom_serializer_spec.rb
+++ b/spec/lib/atom_serializer_spec.rb
@@ -1,206 +1,1555 @@
 require 'rails_helper'
 
 RSpec.describe AtomSerializer do
-  let(:author)   { Fabricate(:account, username: 'Sombra', display_name: '1337 haxxor') }
-  let(:receiver) { Fabricate(:account, username: 'Symmetra') }
+  shared_examples 'follow request salmon' do
+    it 'appends author element with account' do
+      account = Fabricate(:account, domain: nil, username: 'username')
+      follow_request = Fabricate(:follow_request, account: account)
 
-  before do
-    stub_request(:get, "https://cb6e6126.ngrok.io/avatars/original/missing.png").to_return(status: 404)
-    stub_request(:get, "https://cb6e6126.ngrok.io/headers/original/missing.png").to_return(status: 404)
+      follow_request_salmon = serialize(follow_request)
+
+      expect(follow_request_salmon.author.id.text).to eq 'https://cb6e6126.ngrok.io/users/username'
+    end
+
+    it 'appends activity:object-type element with activity type' do
+      follow_request = Fabricate(:follow_request)
+
+      follow_request_salmon = serialize(follow_request)
+
+      object_type = follow_request_salmon.nodes.find { |node| node.name == 'activity:object-type' }
+      expect(object_type.text).to eq TagManager::TYPES[:activity]
+    end
+
+    it 'appends activity:verb element with request_friend type' do
+      follow_request = Fabricate(:follow_request)
+
+      follow_request_salmon = serialize(follow_request)
+
+      verb = follow_request_salmon.nodes.find { |node| node.name == 'activity:verb' }
+      expect(verb.text).to eq TagManager::VERBS[:request_friend]
+    end
+
+    it 'appends activity:object with target account' do
+      target_account = Fabricate(:account, domain: 'domain', uri: 'https://domain/id')
+      follow_request = Fabricate(:follow_request, target_account: target_account)
+
+      follow_request_salmon = serialize(follow_request)
+
+      object = follow_request_salmon.nodes.find { |node| node.name == 'activity:object' }
+      expect(object.id.text).to eq 'https://domain/id'
+    end
+  end
+
+  shared_examples 'namespaces' do
+    it 'adds namespaces' do
+      element = serialize
+
+      expect(element['xmlns']).to eq TagManager::XMLNS
+      expect(element['xmlns:thr']).to eq TagManager::THR_XMLNS
+      expect(element['xmlns:activity']).to eq TagManager::AS_XMLNS
+      expect(element['xmlns:poco']).to eq TagManager::POCO_XMLNS
+      expect(element['xmlns:media']).to eq TagManager::MEDIA_XMLNS
+      expect(element['xmlns:ostatus']).to eq TagManager::OS_XMLNS
+      expect(element['xmlns:mastodon']).to eq TagManager::MTDN_XMLNS
+    end
+  end
+
+  shared_examples 'no namespaces' do
+    it 'does not add namespaces' do
+      expect(serialize['xmlns']).to eq nil
+    end
+  end
+
+  shared_examples 'status attributes' do
+    it 'appends summary element with spoiler text if present' do
+      status = Fabricate(:status, language: :ca, spoiler_text: 'spoiler text')
+
+      element = serialize(status)
+
+      summary = element.summary
+      expect(summary['xml:lang']).to eq 'ca'
+      expect(summary.text).to eq 'spoiler text'
+    end
+
+    it 'does not append summary element with spoiler text if not present' do
+      status = Fabricate(:status, spoiler_text: '')
+      element = serialize(status)
+      element.nodes.each { |node| expect(node.name).not_to eq 'summary' }
+    end
+
+    it 'appends content element with formatted status' do
+      status = Fabricate(:status, language: :ca, text: 'text')
+
+      element = serialize(status)
+
+      content = element.content
+      expect(content[:type]).to eq 'html'
+      expect(content['xml:lang']).to eq 'ca'
+      expect(content.text).to eq '<p>text</p>'
+    end
+
+    it 'appends link elements for mentioned accounts' do
+      account = Fabricate(:account, username: 'username')
+      status = Fabricate(:status)
+      Fabricate(:mention, account: account, status: status)
+
+      element = serialize(status)
+
+      mentioned = element.nodes.find do |node|
+        node.name == 'link' &&
+        node[:rel] == 'mentioned' &&
+        node['ostatus:object-type'] == TagManager::TYPES[:person]
+      end
+      expect(mentioned[:href]).to eq 'https://cb6e6126.ngrok.io/users/username'
+    end
+  end
+
+  describe 'render' do
+    it 'returns XML with emojis' do
+      element = Ox::Element.new('tag')
+      element << '💩'
+      xml = AtomSerializer.render(element)
+
+      expect(xml).to eq "<?xml version=\"1.0\"?>\n<tag>💩</tag>\n"
+    end
+
+    it 'returns XML, stripping invalid characters like \b and \v' do
+      element = Ox::Element.new('tag')
+      element << "im l33t\b haxo\b\vr"
+      xml = AtomSerializer.render(element)
+
+      expect(xml).to eq "<?xml version=\"1.0\"?>\n<tag>im l33t haxor</tag>\n"
+    end
   end
 
   describe '#author' do
-    it 'returns dumpable XML with emojis' do
-      account = Fabricate(:account, display_name: '💩')
-      xml     = AtomSerializer.render(AtomSerializer.new.author(account))
+    context 'when note is present' do
+      it 'appends poco:note element with note for local account' do
+        account = Fabricate(:account, domain: nil, note: '<p>note</p>')
+
+        author = AtomSerializer.new.author(account)
+
+        note = author.nodes.find { |node| node.name == 'poco:note' }
+        expect(note.text).to eq '<p>note</p>'
+      end
+
+      it 'appends poco:note element with tags-stripped note for remote account' do
+        account = Fabricate(:account, domain: 'remote', note: '<p>note</p>')
+
+        author = AtomSerializer.new.author(account)
+
+        note = author.nodes.find { |node| node.name == 'poco:note' }
+        expect(note.text).to eq 'note'
+      end
+
+      it 'appends summary element with type attribute and simplified note if present' do
+        account = Fabricate(:account, note: 'note')
+        author = AtomSerializer.new.author(account)
+        expect(author.summary.text).to eq '<p>note</p>'
+        expect(author.summary[:type]).to eq 'html'
+      end
+    end
+
+    context 'when note is not present' do
+      it 'does not append poco:note element' do
+        account = Fabricate(:account, note: '')
+        author = AtomSerializer.new.author(account)
+        author.nodes.each { |node| expect(node.name).not_to eq 'poco:note' }
+      end
+
+      it 'does not append summary element' do
+        account = Fabricate(:account, note: '')
+        author = AtomSerializer.new.author(account)
+        author.nodes.each { |node| expect(node.name).not_to eq 'summary' }
+      end
+    end
+
+    it 'returns author element' do
+      account = Fabricate(:account)
+      author = AtomSerializer.new.author(account)
+      expect(author.name).to eq 'author'
+    end
+
+    it 'appends activity:object-type element with person type' do
+      account = Fabricate(:account, domain: nil, username: 'username')
+
+      author = AtomSerializer.new.author(account)
+
+      object_type = author.nodes.find { |node| node.name == 'activity:object-type' }
+      expect(object_type.text).to eq TagManager::TYPES[:person]
+    end
+
+    it 'appends email element with username and domain for local account' do
+      account = Fabricate(:account, username: 'username')
+      author = AtomSerializer.new.author(account)
+      expect(author.email.text).to eq 'username@cb6e6126.ngrok.io'
+    end
+
+    it 'appends email element with username and domain for remote user' do
+      account = Fabricate(:account, domain: 'domain', username: 'username')
+      author = AtomSerializer.new.author(account)
+      expect(author.email.text).to eq 'username@domain'
+    end
+
+    it 'appends link element for an alternative' do
+      account = Fabricate(:account, domain: nil, username: 'username')
+
+      author = AtomSerializer.new.author(account)
+
+      link = author.nodes.find { |node| node.name == 'link' && node[:rel] == 'alternate' }
+      expect(link[:type]).to eq 'text/html'
+      expect(link[:rel]).to eq 'alternate'
+      expect(link[:href]).to eq 'https://cb6e6126.ngrok.io/@username'
+    end
+
+    it 'has link element for avatar if present' do
+      account = Fabricate(:account, avatar: attachment_fixture('avatar.gif'))
+
+      author = AtomSerializer.new.author(account)
+
+      link = author.nodes.find { |node| node.name == 'link' && node[:rel] == 'avatar' }
+      expect(link[:type]).to eq 'image/gif'
+      expect(link['media:width']).to eq '120'
+      expect(link['media:height']).to eq '120'
+      expect(link[:href]).to match  /^https:\/\/cb6e6126.ngrok.io\/system\/accounts\/avatars\/.+\/original\/avatar.gif/
+    end
+
+    it 'does not have link element for avatar if not present' do
+      account = Fabricate(:account, avatar: nil)
+
+      author = AtomSerializer.new.author(account)
+
+      author.nodes.each do |node|
+        expect(node[:rel]).not_to eq 'avatar' if node.name == 'link'
+      end
+    end
+
+    it 'appends link element for header if present' do
+      account = Fabricate(:account, header: attachment_fixture('avatar.gif'))
+
+      author = AtomSerializer.new.author(account)
+
+      link = author.nodes.find { |node| node.name == 'link' && node[:rel] == 'header' }
+      expect(link[:type]).to eq 'image/gif'
+      expect(link['media:width']).to eq '700'
+      expect(link['media:height']).to eq '335'
+      expect(link[:href]).to match  /^https:\/\/cb6e6126.ngrok.io\/system\/accounts\/headers\/.+\/original\/avatar.gif/
+    end
+
+    it 'does not append link element for header if not present' do
+      account = Fabricate(:account, header: nil)
+
+      author = AtomSerializer.new.author(account)
+
+      author.nodes.each do |node|
+        expect(node[:rel]).not_to eq 'header' if node.name == 'link'
+      end
+    end
+
+    it 'appends poco:displayName element with display name if present' do
+      account = Fabricate(:account, display_name: 'display name')
+
+      author = AtomSerializer.new.author(account)
+
+      display_name = author.nodes.find { |node| node.name == 'poco:displayName' }
+      expect(display_name.text).to eq 'display name'
+    end
+
+    it 'does not append poco:displayName element with display name if not present' do
+      account = Fabricate(:account, display_name: '')
+      author = AtomSerializer.new.author(account)
+      author.nodes.each { |node| expect(node.name).not_to eq 'poco:displayName' }
+    end
+
+    it "appends mastodon:scope element with 'private' if locked" do
+      account = Fabricate(:account, locked: true)
+
+      author = AtomSerializer.new.author(account)
 
-      expect(xml).to be_a String
-      expect(xml).to match(/<poco:displayName>💩<\/poco:displayName>/)
+      scope = author.nodes.find { |node| node.name == 'mastodon:scope' }
+      expect(scope.text).to eq 'private'
     end
 
-    it 'returns dumpable XML with invalid characters like \b and \v' do
-      account = Fabricate(:account, display_name: "im l33t\b haxo\b\vr")
-      xml     = AtomSerializer.render(AtomSerializer.new.author(account))
+    it "appends mastodon:scope element with 'public' if unlocked" do
+      account = Fabricate(:account, locked: false)
 
-      expect(xml).to be_a String
-      expect(xml).to match(/<poco:displayName>im l33t haxor<\/poco:displayName>/)
+      author = AtomSerializer.new.author(account)
+
+      scope = author.nodes.find { |node| node.name == 'mastodon:scope' }
+      expect(scope.text).to eq 'public'
+    end
+
+    it 'includes URI' do
+      account = Fabricate(:account, domain: nil, username: 'username')
+
+      author = AtomSerializer.new.author(account)
+
+      expect(author.id.text).to eq 'https://cb6e6126.ngrok.io/users/username'
+      expect(author.uri.text).to eq 'https://cb6e6126.ngrok.io/users/username'
+    end
+
+    it 'includes username' do
+      account = Fabricate(:account, username: 'username')
+
+      author = AtomSerializer.new.author(account)
+
+      name = author.nodes.find { |node| node.name == 'name' }
+      username = author.nodes.find { |node| node.name == 'poco:preferredUsername' }
+      expect(name.text).to eq 'username'
+      expect(username.text).to eq 'username'
     end
   end
 
   describe '#entry' do
-    describe 'with deleted status' do
-      let(:entry) do
-        status = Fabricate(:status, account: author, text: 'boop')
-        entry  = status.stream_entry
-        status.destroy
-        entry
+    shared_examples 'not root' do
+      include_examples 'no namespaces' do
+        def serialize
+          subject
+        end
       end
 
-      it 'returns dumpable XML' do
-        xml = AtomSerializer.render(AtomSerializer.new.entry(entry, true))
-        expect(xml).to be_a String
-        expect(xml).to match(/<id>#{TagManager.instance.unique_tag(entry.created_at, entry.activity_id, 'Status')}<\/id>/)
+      it 'does not append author element' do
+        subject.nodes.each { |node| expect(node.name).not_to eq 'author' }
       end
+    end
 
-      it 'triggers delete when processed' do
-        status  = double(id: entry.activity_id)
-        service = double
+    context 'it is root' do
+      include_examples 'namespaces' do
+        def serialize
+          stream_entry = Fabricate(:stream_entry)
+          AtomSerializer.new.entry(stream_entry, true)
+        end
+      end
 
-        allow(Status).to receive(:find_by).and_return(status)
-        allow(RemoveStatusService).to receive(:new).and_return(service)
-        allow(service).to receive(:call)
+      it 'appends author element' do
+        account = Fabricate(:account, username: 'username')
+        status = Fabricate(:status, account: account)
 
-        xml = AtomSerializer.render(AtomSerializer.new.entry(entry, true))
-        ProcessFeedService.new.call(xml, author)
+        entry = AtomSerializer.new.entry(status.stream_entry, true)
 
-        expect(service).to have_received(:call).with(status)
+        expect(entry.author.id.text).to eq 'https://cb6e6126.ngrok.io/users/username'
       end
     end
 
-    describe 'with reblog of local user' do
-      it 'returns dumpable XML'
-      it 'creates a reblog'
+    context 'if status is present' do
+      include_examples 'status attributes' do
+        def serialize(status)
+          AtomSerializer.new.entry(status.stream_entry, true)
+        end
+      end
+
+      it 'appends link element for the public collection if status is publicly visible' do
+        status = Fabricate(:status, visibility: :public)
+
+        entry = AtomSerializer.new.entry(status.stream_entry)
+
+        mentioned_person = entry.nodes.find do |node|
+          node.name == 'link' &&
+          node[:rel] == 'mentioned' &&
+          node['ostatus:object-type'] == TagManager::TYPES[:collection]
+        end
+        expect(mentioned_person[:href]).to eq TagManager::COLLECTIONS[:public]
+      end
+
+      it 'does not append link element for the public collection if status is not publicly visible' do
+        status = Fabricate(:status, visibility: :private)
+
+        entry = AtomSerializer.new.entry(status.stream_entry)
+
+        entry.nodes.each do |node|
+          if node.name == 'link' &&
+             node[:rel] == 'mentioned' &&
+             node['ostatus:object-type'] == TagManager::TYPES[:collection]
+            expect(mentioned_collection[:href]).not_to eq TagManager::COLLECTIONS[:public]
+          end
+        end
+      end
+
+      it 'appends category elements for tags' do
+        tag = Fabricate(:tag, name: 'tag')
+        status = Fabricate(:status, tags: [ tag ])
+
+        entry = AtomSerializer.new.entry(status.stream_entry)
+
+        expect(entry.category[:term]).to eq 'tag'
+      end
+
+      it 'appends category element for NSFW if status is sensitive' do
+        status = Fabricate(:status, sensitive: true)
+        entry = AtomSerializer.new.entry(status.stream_entry)
+        expect(entry.category[:term]).to eq 'nsfw'
+      end
+
+      it 'appends link elements for media attachments' do
+        file = attachment_fixture('attachment.jpg')
+        media_attachment = Fabricate(:media_attachment, file: file)
+        status = Fabricate(:status, media_attachments: [ media_attachment ])
+
+        entry = AtomSerializer.new.entry(status.stream_entry)
+
+        enclosure = entry.nodes.find { |node| node.name == 'link' && node[:rel] == 'enclosure' }
+        expect(enclosure[:type]).to eq 'image/jpeg'
+        expect(enclosure[:length]).to eq '57822'
+        expect(enclosure[:href]).to match /^https:\/\/cb6e6126.ngrok.io\/system\/media_attachments\/files\/.+\/original\/attachment.jpg$/
+      end
+
+      it 'appends mastodon:scope element with visibility' do
+        status = Fabricate(:status, visibility: :public)
+
+        entry = AtomSerializer.new.entry(status.stream_entry)
+
+        scope = entry.nodes.find { |node| node.name == 'mastodon:scope' }
+        expect(scope.text).to eq 'public'
+      end
+
+      it 'returns element whose rendered view triggers creation when processed' do
+        remote_account = Account.create!(username: 'username')
+        remote_status = Fabricate(:status, account: remote_account)
+        remote_status.stream_entry.update!(created_at: '2000-01-01T00:00:00Z')
+
+        entry = AtomSerializer.new.entry(remote_status.stream_entry, true)
+        xml = AtomSerializer.render(entry).gsub('cb6e6126.ngrok.io', 'remote')
+
+        remote_status.destroy!
+        remote_account.destroy!
+
+        account = Account.create!(
+          domain: 'remote',
+          username: 'username',
+          last_webfingered_at: Time.now.utc,
+        )
+
+        ProcessFeedService.new.call(xml, account)
+
+        expect(Status.find_by(uri: "tag:remote,2000-01-01:objectId=#{remote_status.id}:objectType=Status")).to be_instance_of Status
+      end
+    end
+
+    context 'if status is not present' do
+      it 'appends content element saying status is deleted' do
+        status = Fabricate(:status)
+        status.destroy!
+
+        entry = AtomSerializer.new.entry(status.stream_entry)
+
+        expect(entry.content.text).to eq 'Deleted status'
+      end
+
+      it 'appends title element saying the status is deleted' do
+        account = Fabricate(:account, username: 'username')
+        status = Fabricate(:status, account: account)
+        status.destroy!
+
+        entry = AtomSerializer.new.entry(status.stream_entry)
+
+        expect(entry.title.text).to eq 'username deleted status'
+      end
+    end
+
+    context 'it is not root' do
+      let(:stream_entry) { Fabricate(:stream_entry) }
+      subject { AtomSerializer.new.entry(stream_entry, false) }
+      include_examples 'not root'
+    end
+
+    context 'without root parameter' do
+      let(:stream_entry) { Fabricate(:stream_entry) }
+      subject { AtomSerializer.new.entry(stream_entry) }
+      include_examples 'not root'
+    end
+
+    it 'returns entry element' do
+      stream_entry = Fabricate(:stream_entry)
+      entry = AtomSerializer.new.entry(stream_entry)
+      expect(entry.name).to eq 'entry'
+    end
+
+    it 'appends id element with unique tag' do
+      status = Fabricate(:status, reblog_of_id: nil)
+      status.stream_entry.update!(created_at: '2000-01-01T00:00:00Z')
+
+      entry = AtomSerializer.new.entry(status.stream_entry)
+
+      expect(entry.id.text).to eq "tag:cb6e6126.ngrok.io,2000-01-01:objectId=#{status.id}:objectType=Status"
+    end
+
+    it 'appends published element with created date' do
+      stream_entry = Fabricate(:stream_entry, created_at: '2000-01-01T00:00:00Z')
+      entry = AtomSerializer.new.entry(stream_entry)
+      expect(entry.published.text).to eq '2000-01-01T00:00:00Z'
+    end
+
+    it 'appends updated element with updated date' do
+      stream_entry = Fabricate(:stream_entry, updated_at: '2000-01-01T00:00:00Z')
+      entry = AtomSerializer.new.entry(stream_entry)
+      expect(entry.updated.text).to eq '2000-01-01T00:00:00Z'
+    end
+
+    it 'appends title element with status title' do
+      account = Fabricate(:account, username: 'username')
+      status = Fabricate(:status, account: account, reblog_of_id: nil)
+      entry = AtomSerializer.new.entry(status.stream_entry)
+      expect(entry.title.text).to eq 'New status by username'
     end
 
-    describe 'with reblog of 3rd party user' do
-      it 'returns dumpable XML'
-      it 'creates a reblog with correct author'
+    it 'appends activity:object-type element with object type' do
+      status = Fabricate(:status)
+      entry = AtomSerializer.new.entry(status.stream_entry)
+      object_type = entry.nodes.find { |node| node.name == 'activity:object-type' }
+      expect(object_type.text).to eq TagManager::TYPES[:note]
+    end
+
+    it 'appends activity:verb element with object type' do
+      status = Fabricate(:status)
+
+      entry = AtomSerializer.new.entry(status.stream_entry)
+
+      object_type = entry.nodes.find { |node| node.name == 'activity:verb' }
+      expect(object_type.text).to eq TagManager::VERBS[:post]
+    end
+
+    it 'appends activity:object element with target if present' do
+      reblogged = Fabricate(:status, created_at: '2000-01-01T00:00:00Z')
+      reblog = Fabricate(:status, reblog: reblogged)
+
+      entry = AtomSerializer.new.entry(reblog.stream_entry)
+
+      object = entry.nodes.find { |node| node.name == 'activity:object' }
+      expect(object.id.text).to eq "tag:cb6e6126.ngrok.io,2000-01-01:objectId=#{reblogged.id}:objectType=Status"
+    end
+
+    it 'does not append activity:object element if target is not present' do
+      status = Fabricate(:status, reblog_of_id: nil)
+      entry = AtomSerializer.new.entry(status.stream_entry)
+      entry.nodes.each { |node| expect(node.name).not_to eq 'activity:object' }
+    end
+
+    it 'appends link element for an alternative' do
+      account = Fabricate(:account, username: 'username')
+      status = Fabricate(:status, account: account)
+
+      entry = AtomSerializer.new.entry(status.stream_entry)
+
+      link = entry.nodes.find { |node| node.name == 'link' && node[:rel] == 'alternate' }
+      expect(link[:type]).to eq 'text/html'
+      expect(link[:href]).to eq "https://cb6e6126.ngrok.io/users/username/updates/#{status.stream_entry.id}"
+    end
+
+    it 'appends link element for itself' do
+      account = Fabricate(:account, username: 'username')
+      status = Fabricate(:status, account: account)
+
+      entry = AtomSerializer.new.entry(status.stream_entry)
+
+      link = entry.nodes.find { |node| node.name == 'link' && node[:rel] == 'self' }
+      expect(link[:type]).to eq 'application/atom+xml'
+      expect(link[:href]).to eq "https://cb6e6126.ngrok.io/users/username/updates/#{status.stream_entry.id}.atom"
+    end
+
+    it 'appends thr:in-reply-to element if threaded' do
+      in_reply_to_status = Fabricate(:status, created_at: '2000-01-01T00:00:00Z', reblog_of_id: nil)
+      reply_status = Fabricate(:status, in_reply_to_id: in_reply_to_status.id)
+
+      entry = AtomSerializer.new.entry(reply_status.stream_entry)
+
+      in_reply_to = entry.nodes.find { |node| node.name == 'thr:in-reply-to' }
+      expect(in_reply_to[:ref]).to eq "tag:cb6e6126.ngrok.io,2000-01-01:objectId=#{in_reply_to_status.id}:objectType=Status"
+    end
+
+    it 'does not append thr:in-reply-to element if not threaded' do
+      status = Fabricate(:status)
+      entry = AtomSerializer.new.entry(status.stream_entry)
+      entry.nodes.each { |node| expect(node.name).not_to eq 'thr:in-reply-to' }
+    end
+
+    it 'appends ostatus:conversation if conversation id is present' do
+      status = Fabricate(:status)
+      status.conversation.update!(created_at: '2000-01-01T00:00:00Z')
+
+      entry = AtomSerializer.new.entry(status.stream_entry)
+
+      conversation = entry.nodes.find { |node| node.name == 'ostatus:conversation' }
+      expect(conversation[:ref]).to eq "tag:cb6e6126.ngrok.io,2000-01-01:objectId=#{status.conversation_id}:objectType=Conversation"
+    end
+
+    it 'does not append ostatus:conversation if conversation id is not present' do
+      status = Fabricate.build(:status, conversation_id: nil)
+      status.save!(validate: false)
+
+      entry = AtomSerializer.new.entry(status.stream_entry)
+
+      entry.nodes.each { |node| expect(node.name).not_to eq 'ostatus:conversation' }
     end
   end
 
-  describe '#follow_salmon' do
-    let(:xml) do
-      follow = Fabricate(:follow, account: author, target_account: receiver)
-      xml    = AtomSerializer.render(AtomSerializer.new.follow_salmon(follow))
-      follow.destroy
-      xml
+  describe '#feed' do
+    include_examples 'namespaces' do
+      def serialize
+        account = Fabricate(:account)
+        AtomSerializer.new.feed(account, [])
+      end
+    end
+
+    it 'returns feed element' do
+      account = Fabricate(:account)
+      feed = AtomSerializer.new.feed(account, [])
+      expect(feed.name).to eq 'feed'
+    end
+
+    it 'appends id element with account Atom URL' do
+      account = Fabricate(:account, username: 'username')
+      feed = AtomSerializer.new.feed(account, [])
+      expect(feed.id.text).to eq 'https://cb6e6126.ngrok.io/users/username.atom'
+    end
+
+    it 'appends title element with account display name if present' do
+      account = Fabricate(:account, display_name: 'display name')
+      feed = AtomSerializer.new.feed(account, [])
+      expect(feed.title.text).to eq 'display name'
+    end
+
+    it 'does not append title element with account username if account display name is not present' do
+      account = Fabricate(:account, display_name: '', username: 'username')
+      feed = AtomSerializer.new.feed(account, [])
+      expect(feed.title.text).to eq 'username'
     end
 
-    it 'returns dumpable XML' do
-      expect(xml).to be_a String
+    it 'appends subtitle element with account note' do
+      account = Fabricate(:account, note: 'note')
+      feed = AtomSerializer.new.feed(account, [])
+      expect(feed.subtitle.text).to eq 'note'
     end
 
-    it 'triggers follow when processed' do
-      envelope = OStatus2::Salmon.new.pack(xml, author.keypair)
-      ProcessInteractionService.new.call(envelope, receiver)
-      expect(author.following?(receiver)).to be true
+    it 'appends updated element with date account got updated' do
+      account = Fabricate(:account, updated_at: '2000-01-01T00:00:00Z')
+      feed = AtomSerializer.new.feed(account, [])
+      expect(feed.updated.text).to eq '2000-01-01T00:00:00Z'
+    end
+
+    it 'appends logo element with full asset URL for original account avatar' do
+      account = Fabricate(:account, avatar: attachment_fixture('avatar.gif'))
+      feed = AtomSerializer.new.feed(account, [])
+      expect(feed.logo.text).to match /^https:\/\/cb6e6126.ngrok.io\/system\/accounts\/avatars\/.+\/original\/avatar.gif/
+    end
+
+    it 'appends author element' do
+      account = Fabricate(:account, username: 'username')
+      feed = AtomSerializer.new.feed(account, [])
+      expect(feed.author.id.text).to eq 'https://cb6e6126.ngrok.io/users/username'
+    end
+
+    it 'appends link element for an alternative' do
+      account = Fabricate(:account, username: 'username')
+
+      feed = AtomSerializer.new.feed(account, [])
+
+      link = feed.nodes.find { |node| node.name == 'link' && node[:rel] == 'alternate' }
+      expect(link[:type]).to eq 'text/html'
+      expect(link[:href]).to eq 'https://cb6e6126.ngrok.io/@username'
+    end
+
+    it 'appends link element for itself' do
+      account = Fabricate(:account, username: 'username')
+
+      feed = AtomSerializer.new.feed(account, [])
+
+      link = feed.nodes.find { |node| node.name == 'link' && node[:rel] == 'self' }
+      expect(link[:type]).to eq 'application/atom+xml'
+      expect(link[:href]).to eq 'https://cb6e6126.ngrok.io/users/username.atom'
+    end
+
+    it 'appends link element for the next if it has 20 stream entries' do
+      account = Fabricate(:account, username: 'username')
+      stream_entry = Fabricate(:stream_entry)
+
+      feed = AtomSerializer.new.feed(account, Array.new(20, stream_entry))
+
+      link = feed.nodes.find { |node| node.name == 'link' && node[:rel] == 'next' }
+      expect(link[:type]).to eq 'application/atom+xml'
+      expect(link[:href]).to eq "https://cb6e6126.ngrok.io/users/username.atom?max_id=#{stream_entry.id}"
+    end
+
+    it 'does not append link element for the next if it does not have 20 stream entries' do
+      account = Fabricate(:account, username: 'username')
+
+      feed = AtomSerializer.new.feed(account, [])
+
+      feed.nodes.each do |node|
+        expect(node[:rel]).not_to eq 'next' if node.name == 'link'
+      end
+    end
+
+    it 'appends link element for hub' do
+      account = Fabricate(:account, username: 'username')
+
+      feed = AtomSerializer.new.feed(account, [])
+
+      link = feed.nodes.find { |node| node.name == 'link' && node[:rel] == 'hub' }
+      expect(link[:href]).to eq 'https://cb6e6126.ngrok.io/api/push'
+    end
+
+    it 'appends link element for Salmon' do
+      account = Fabricate(:account, username: 'username')
+
+      feed = AtomSerializer.new.feed(account, [])
+
+      link = feed.nodes.find { |node| node.name == 'link' && node[:rel] == 'salmon' }
+      expect(link[:href]).to start_with 'https://cb6e6126.ngrok.io/api/salmon/'
+    end
+
+    it 'appends stream entries' do
+      account = Fabricate(:account, username: 'username')
+      status = Fabricate(:status, account: account)
+
+      feed = AtomSerializer.new.feed(account, [status.stream_entry])
+
+      expect(feed.entry.title.text).to eq 'New status by username'
     end
   end
 
-  describe '#unfollow_salmon' do
-    let(:xml) do
-      follow = Fabricate(:follow, account: author, target_account: receiver)
-      follow.destroy
-      xml = AtomSerializer.render(AtomSerializer.new.unfollow_salmon(follow))
-      author.follow!(receiver)
-      xml
+  describe '#block_salmon' do
+    include_examples 'namespaces' do
+      def serialize
+        block = Fabricate(:block)
+        AtomSerializer.new.block_salmon(block)
+      end
+    end
+
+    it 'returns entry element' do
+      block = Fabricate(:block)
+      block_salmon = AtomSerializer.new.block_salmon(block)
+      expect(block_salmon.name).to eq 'entry'
+    end
+
+    it 'appends id element with unique tag' do
+      block = Fabricate(:block)
+
+      time_before = Time.now
+      block_salmon = AtomSerializer.new.block_salmon(block)
+      time_after = Time.now
+
+      expect(block_salmon.id.text).to(
+        eq(TagManager.instance.unique_tag(time_before.utc, block.id, 'Block'))
+          .or(eq(TagManager.instance.unique_tag(time_after.utc, block.id, 'Block')))
+      )
+    end
+
+    it 'appends title element with description' do
+      account = Fabricate(:account, domain: nil, username: 'account')
+      target_account = Fabricate(:account, domain: 'remote', username: 'target_account')
+      block = Fabricate(:block, account: account, target_account: target_account)
+
+      block_salmon = AtomSerializer.new.block_salmon(block)
+
+      expect(block_salmon.title.text).to eq 'account no longer wishes to interact with target_account@remote'
+    end
+
+    it 'appends author element with account' do
+      account = Fabricate(:account, domain: nil, username: 'account')
+      block = Fabricate(:block, account: account)
+
+      block_salmon = AtomSerializer.new.block_salmon(block)
+
+      expect(block_salmon.author.id.text).to eq 'https://cb6e6126.ngrok.io/users/account'
+    end
+
+    it 'appends activity:object-type element with activity type' do
+      block = Fabricate(:block)
+
+      block_salmon = AtomSerializer.new.block_salmon(block)
+
+      object_type = block_salmon.nodes.find { |node| node.name == 'activity:object-type' }
+      expect(object_type.text).to eq TagManager::TYPES[:activity]
+    end
+
+    it 'appends activity:verb element with block' do
+      block = Fabricate(:block)
+
+      block_salmon = AtomSerializer.new.block_salmon(block)
+
+      verb = block_salmon.nodes.find { |node| node.name == 'activity:verb' }
+      expect(verb.text).to eq TagManager::VERBS[:block]
+    end
+
+    it 'appends activity:object element with target account' do
+      target_account = Fabricate(:account, domain: 'domain', uri: 'https://domain/id')
+      block = Fabricate(:block, target_account: target_account)
+
+      block_salmon = AtomSerializer.new.block_salmon(block)
+
+      object = block_salmon.nodes.find { |node| node.name == 'activity:object' }
+      expect(object.id.text).to eq 'https://domain/id'
+    end
+
+    it 'returns element whose rendered view triggers block when processed' do
+      block = Fabricate(:block)
+      block_salmon = AtomSerializer.new.block_salmon(block)
+      xml = AtomSerializer.render(block_salmon)
+      envelope = OStatus2::Salmon.new.pack(xml, block.account.keypair)
+      block.destroy!
+
+      ProcessInteractionService.new.call(envelope, block.target_account)
+
+      expect(block.account.blocking?(block.target_account)).to be true
+    end
+  end
+
+  describe '#unblock_salmon' do
+    include_examples 'namespaces' do
+      def serialize
+        block = Fabricate(:block)
+        AtomSerializer.new.unblock_salmon(block)
+      end
+    end
+
+    it 'returns entry element' do
+      block = Fabricate(:block)
+      unblock_salmon = AtomSerializer.new.unblock_salmon(block)
+      expect(unblock_salmon.name).to eq 'entry'
+    end
+
+    it 'appends id element with unique tag' do
+      block = Fabricate(:block)
+
+      time_before = Time.now
+      unblock_salmon = AtomSerializer.new.unblock_salmon(block)
+      time_after = Time.now
+
+      expect(unblock_salmon.id.text).to(
+        eq(TagManager.instance.unique_tag(time_before.utc, block.id, 'Block'))
+          .or(eq(TagManager.instance.unique_tag(time_after.utc, block.id, 'Block')))
+      )
+    end
+
+    it 'appends title element with description' do
+      account = Fabricate(:account, domain: nil, username: 'account')
+      target_account = Fabricate(:account, domain: 'remote', username: 'target_account')
+      block = Fabricate(:block, account: account, target_account: target_account)
+
+      unblock_salmon = AtomSerializer.new.unblock_salmon(block)
+
+      expect(unblock_salmon.title.text).to eq 'account no longer blocks target_account@remote'
+    end
+
+    it 'appends author element with account' do
+      account = Fabricate(:account, domain: nil, username: 'account')
+      block = Fabricate(:block, account: account)
+
+      unblock_salmon = AtomSerializer.new.unblock_salmon(block)
+
+      expect(unblock_salmon.author.id.text).to eq 'https://cb6e6126.ngrok.io/users/account'
+    end
+
+    it 'appends activity:object-type element with activity type' do
+      block = Fabricate(:block)
+
+      unblock_salmon = AtomSerializer.new.unblock_salmon(block)
+
+      object_type = unblock_salmon.nodes.find { |node| node.name == 'activity:object-type' }
+      expect(object_type.text).to eq TagManager::TYPES[:activity]
     end
 
-    it 'returns dumpable XML' do
-      expect(xml).to be_a String
+    it 'appends activity:verb element with block' do
+      block = Fabricate(:block)
+
+      unblock_salmon = AtomSerializer.new.unblock_salmon(block)
+
+      verb = unblock_salmon.nodes.find { |node| node.name == 'activity:verb' }
+      expect(verb.text).to eq TagManager::VERBS[:unblock]
     end
 
-    it 'triggers unfollow when processed' do
-      envelope = OStatus2::Salmon.new.pack(xml, author.keypair)
-      ProcessInteractionService.new.call(envelope, receiver)
-      expect(author.following?(receiver)).to be false
+    it 'appends activity:object element with target account' do
+      target_account = Fabricate(:account, domain: 'domain', uri: 'https://domain/id')
+      block = Fabricate(:block, target_account: target_account)
+
+      unblock_salmon = AtomSerializer.new.unblock_salmon(block)
+
+      object = unblock_salmon.nodes.find { |node| node.name == 'activity:object' }
+      expect(object.id.text).to eq 'https://domain/id'
+    end
+
+    it 'returns element whose rendered view triggers block when processed' do
+      block = Fabricate(:block)
+      unblock_salmon = AtomSerializer.new.unblock_salmon(block)
+      xml = AtomSerializer.render(unblock_salmon)
+      envelope = OStatus2::Salmon.new.pack(xml, block.account.keypair)
+
+      ProcessInteractionService.new.call(envelope, block.target_account)
+
+      expect{ block.reload }.to raise_error ActiveRecord::RecordNotFound
     end
   end
 
   describe '#favourite_salmon' do
-    let(:status) { Fabricate(:status, account: receiver, text: 'Everything by design.') }
+    include_examples 'namespaces' do
+      def serialize
+        favourite = Fabricate(:favourite)
+        AtomSerializer.new.favourite_salmon(favourite)
+      end
+    end
+
+    it 'returns entry element' do
+      favourite = Fabricate(:favourite)
+      favourite_salmon = AtomSerializer.new.favourite_salmon(favourite)
+      expect(favourite_salmon.name).to eq 'entry'
+    end
+
+    it 'appends id element with unique tag' do
+      favourite = Fabricate(:favourite, created_at: '2000-01-01T00:00:00Z')
+      favourite_salmon = AtomSerializer.new.favourite_salmon(favourite)
+      expect(favourite_salmon.id.text).to eq "tag:cb6e6126.ngrok.io,2000-01-01:objectId=#{favourite.id}:objectType=Favourite"
+    end
+
+    it 'appends author element with account' do
+      account = Fabricate(:account, domain: nil, username: 'username')
+      favourite = Fabricate(:favourite, account: account)
 
-    let(:xml) do
-      favourite = Fabricate(:favourite, account: author, status: status)
-      xml       = AtomSerializer.render(AtomSerializer.new.favourite_salmon(favourite))
-      favourite.destroy
-      xml
+      favourite_salmon = AtomSerializer.new.favourite_salmon(favourite)
+
+      expect(favourite_salmon.author.id.text).to eq 'https://cb6e6126.ngrok.io/users/username'
     end
 
-    it 'returns dumpable XML' do
-      expect(xml).to be_a String
+    it 'appends activity:object-type element with activity type' do
+      favourite = Fabricate(:favourite)
+
+      favourite_salmon = AtomSerializer.new.favourite_salmon(favourite)
+
+      object_type = favourite_salmon.nodes.find { |node| node.name == 'activity:object-type' }
+      expect(object_type.text).to eq 'http://activitystrea.ms/schema/1.0/activity'
+    end
+
+    it 'appends activity:verb element with favorite' do
+      favourite = Fabricate(:favourite)
+
+      favourite_salmon = AtomSerializer.new.favourite_salmon(favourite)
+
+      verb = favourite_salmon.nodes.find { |node| node.name == 'activity:verb' }
+      expect(verb.text).to eq TagManager::VERBS[:favorite]
+    end
+
+    it 'appends activity:object element with status' do
+      status = Fabricate(:status, created_at: '2000-01-01T00:00:00Z')
+      favourite = Fabricate(:favourite, status: status)
+
+      favourite_salmon = AtomSerializer.new.favourite_salmon(favourite)
+
+      object = favourite_salmon.nodes.find { |node| node.name == 'activity:object' }
+      expect(object.id.text).to eq "tag:cb6e6126.ngrok.io,2000-01-01:objectId=#{status.id}:objectType=Status"
+    end
+
+    it 'appends thr:in-reply-to element for status' do
+      status_account = Fabricate(:account, username: 'username')
+      status = Fabricate(:status, account: status_account, created_at: '2000-01-01T00:00:00Z')
+      favourite = Fabricate(:favourite, status: status)
+
+      favourite_salmon = AtomSerializer.new.favourite_salmon(favourite)
+
+      in_reply_to = favourite_salmon.nodes.find { |node| node.name == 'thr:in-reply-to' }
+      expect(in_reply_to.ref).to eq "tag:cb6e6126.ngrok.io,2000-01-01:objectId=#{status.id}:objectType=Status"
+      expect(in_reply_to.href).to eq "https://cb6e6126.ngrok.io/@username/#{status.id}"
+    end
+
+    it 'includes description' do
+      account = Fabricate(:account, domain: nil, username: 'account')
+      status_account = Fabricate(:account, domain: 'remote', username: 'status_account')
+      status = Fabricate(:status, account: status_account)
+      favourite = Fabricate(:favourite, account: account, status: status)
+
+      favourite_salmon = AtomSerializer.new.favourite_salmon(favourite)
+
+      expect(favourite_salmon.title.text).to eq 'account favourited a status by status_account@remote'
+      expect(favourite_salmon.content.text).to eq 'account favourited a status by status_account@remote'
     end
 
-    it 'triggers favourite when processed' do
-      envelope = OStatus2::Salmon.new.pack(xml, author.keypair)
-      ProcessInteractionService.new.call(envelope, receiver)
-      expect(author.favourited?(status)).to be true
+    it 'returns element whose rendered view triggers favourite when processed' do
+      favourite = Fabricate(:favourite)
+      favourite_salmon = AtomSerializer.new.favourite_salmon(favourite)
+      xml = AtomSerializer.render(favourite_salmon)
+      envelope = OStatus2::Salmon.new.pack(xml, favourite.account.keypair)
+      favourite.destroy!
+
+      ProcessInteractionService.new.call(envelope, favourite.status.account)
+      expect(favourite.account.favourited?(favourite.status)).to be true
     end
   end
 
   describe '#unfavourite_salmon' do
-    let(:status) { Fabricate(:status, account: receiver, text: 'Perfect harmony.') }
+    include_examples 'namespaces' do
+      def serialize
+        favourite = Fabricate(:favourite)
+        AtomSerializer.new.favourite_salmon(favourite)
+      end
+    end
 
-    let(:xml) do
-      favourite = Fabricate(:favourite, account: author, status: status)
-      favourite.destroy
-      xml = AtomSerializer.render(AtomSerializer.new.unfavourite_salmon(favourite))
-      Fabricate(:favourite, account: author, status: status)
-      xml
+    it 'returns entry element' do
+      favourite = Fabricate(:favourite)
+      unfavourite_salmon = AtomSerializer.new.unfavourite_salmon(favourite)
+      expect(unfavourite_salmon.name).to eq 'entry'
     end
 
-    it 'returns dumpable XML' do
-      expect(xml).to be_a String
+    it 'appends id element with unique tag' do
+      favourite = Fabricate(:favourite)
+
+      time_before = Time.now
+      unfavourite_salmon = AtomSerializer.new.unfavourite_salmon(favourite)
+      time_after = Time.now
+
+      expect(unfavourite_salmon.id.text).to(
+        eq(TagManager.instance.unique_tag(time_before.utc, favourite.id, 'Favourite'))
+          .or(eq(TagManager.instance.unique_tag(time_after.utc, favourite.id, 'Favourite')))
+      )
     end
 
-    it 'triggers unfavourite when processed' do
-      envelope = OStatus2::Salmon.new.pack(xml, author.keypair)
-      ProcessInteractionService.new.call(envelope, receiver)
-      expect(author.favourited?(status)).to be false
+    it 'appends author element with account' do
+      account = Fabricate(:account, domain: nil, username: 'username')
+      favourite = Fabricate(:favourite, account: account)
+
+      unfavourite_salmon = AtomSerializer.new.unfavourite_salmon(favourite)
+
+      expect(unfavourite_salmon.author.id.text).to eq 'https://cb6e6126.ngrok.io/users/username'
+    end
+
+    it 'appends activity:object-type element with activity type' do
+      favourite = Fabricate(:favourite)
+
+      unfavourite_salmon = AtomSerializer.new.unfavourite_salmon(favourite)
+
+      object_type = unfavourite_salmon.nodes.find { |node| node.name == 'activity:object-type' }
+      expect(object_type.text).to eq 'http://activitystrea.ms/schema/1.0/activity'
+    end
+
+    it 'appends activity:verb element with favorite' do
+      favourite = Fabricate(:favourite)
+
+      unfavourite_salmon = AtomSerializer.new.unfavourite_salmon(favourite)
+
+      verb = unfavourite_salmon.nodes.find { |node| node.name == 'activity:verb' }
+      expect(verb.text).to eq TagManager::VERBS[:unfavorite]
+    end
+
+    it 'appends activity:object element with status' do
+      status = Fabricate(:status, created_at: '2000-01-01T00:00:00Z')
+      favourite = Fabricate(:favourite, status: status)
+
+      unfavourite_salmon = AtomSerializer.new.unfavourite_salmon(favourite)
+
+      object = unfavourite_salmon.nodes.find { |node| node.name == 'activity:object' }
+      expect(object.id.text).to eq "tag:cb6e6126.ngrok.io,2000-01-01:objectId=#{status.id}:objectType=Status"
+    end
+
+    it 'appends thr:in-reply-to element for status' do
+      status_account = Fabricate(:account, username: 'username')
+      status = Fabricate(:status, account: status_account, created_at: '2000-01-01T00:00:00Z')
+      favourite = Fabricate(:favourite, status: status)
+
+      unfavourite_salmon = AtomSerializer.new.unfavourite_salmon(favourite)
+
+      in_reply_to = unfavourite_salmon.nodes.find { |node| node.name == 'thr:in-reply-to' }
+      expect(in_reply_to.ref).to eq "tag:cb6e6126.ngrok.io,2000-01-01:objectId=#{status.id}:objectType=Status"
+      expect(in_reply_to.href).to eq "https://cb6e6126.ngrok.io/@username/#{status.id}"
+    end
+
+    it 'includes description' do
+      account = Fabricate(:account, domain: nil, username: 'account')
+      status_account = Fabricate(:account, domain: 'remote', username: 'status_account')
+      status = Fabricate(:status, account: status_account)
+      favourite = Fabricate(:favourite, account: account, status: status)
+
+      unfavourite_salmon = AtomSerializer.new.unfavourite_salmon(favourite)
+
+      expect(unfavourite_salmon.title.text).to eq 'account no longer favourites a status by status_account@remote'
+      expect(unfavourite_salmon.content.text).to eq 'account no longer favourites a status by status_account@remote'
+    end
+
+    it 'returns element whose rendered view triggers unfavourite when processed' do
+      favourite = Fabricate(:favourite)
+      unfavourite_salmon = AtomSerializer.new.unfavourite_salmon(favourite)
+      xml = AtomSerializer.render(unfavourite_salmon)
+      envelope = OStatus2::Salmon.new.pack(xml, favourite.account.keypair)
+
+      ProcessInteractionService.new.call(envelope, favourite.status.account)
+      expect { favourite.reload }.to raise_error ActiveRecord::RecordNotFound
     end
   end
 
-  describe '#block_salmon' do
-    let(:xml) do
-      block = Fabricate(:block, account: author, target_account: receiver)
-      xml   = AtomSerializer.render(AtomSerializer.new.block_salmon(block))
-      block.destroy
-      xml
+  describe '#follow_salmon' do
+    include_examples 'namespaces' do
+      def serialize
+        follow = Fabricate(:follow)
+        AtomSerializer.new.follow_salmon(follow)
+      end
+    end
+
+    it 'returns entry element' do
+      follow = Fabricate(:follow)
+      follow_salmon = AtomSerializer.new.follow_salmon(follow)
+      expect(follow_salmon.name).to eq 'entry'
     end
 
-    it 'returns dumpable XML' do
-      expect(xml).to be_a String
+    it 'appends id element with unique tag' do
+      follow = Fabricate(:follow, created_at: '2000-01-01T00:00:00Z')
+      follow_salmon = AtomSerializer.new.follow_salmon(follow)
+      expect(follow_salmon.id.text).to eq "tag:cb6e6126.ngrok.io,2000-01-01:objectId=#{follow.id}:objectType=Follow"
     end
 
-    it 'triggers block when processed' do
-      envelope = OStatus2::Salmon.new.pack(xml, author.keypair)
-      ProcessInteractionService.new.call(envelope, receiver)
-      expect(author.blocking?(receiver)).to be true
+    it 'appends author element with account' do
+      account = Fabricate(:account, domain: nil, username: 'username')
+      follow = Fabricate(:follow, account: account)
+
+      follow_salmon = AtomSerializer.new.follow_salmon(follow)
+
+      expect(follow_salmon.author.id.text).to eq 'https://cb6e6126.ngrok.io/users/username'
+    end
+
+    it 'appends activity:object-type element with activity type' do
+      follow = Fabricate(:follow)
+
+      follow_salmon = AtomSerializer.new.follow_salmon(follow)
+
+      object_type = follow_salmon.nodes.find { |node| node.name == 'activity:object-type' }
+      expect(object_type.text).to eq TagManager::TYPES[:activity]
+    end
+
+    it 'appends activity:verb element with follow' do
+      follow = Fabricate(:follow)
+
+      follow_salmon = AtomSerializer.new.follow_salmon(follow)
+
+      verb = follow_salmon.nodes.find { |node| node.name == 'activity:verb' }
+      expect(verb.text).to eq TagManager::VERBS[:follow]
+    end
+
+    it 'appends activity:object element with target account' do
+      target_account = Fabricate(:account, domain: 'domain', uri: 'https://domain/id')
+      follow = Fabricate(:follow, target_account: target_account)
+
+      follow_salmon = AtomSerializer.new.follow_salmon(follow)
+
+      object = follow_salmon.nodes.find { |node| node.name == 'activity:object' }
+      expect(object.id.text).to eq 'https://domain/id'
+    end
+
+    it 'includes description' do
+      account = Fabricate(:account, domain: nil, username: 'account')
+      target_account = Fabricate(:account, domain: 'remote', username: 'target_account')
+      follow = Fabricate(:follow, account: account, target_account: target_account)
+
+      follow_salmon = AtomSerializer.new.follow_salmon(follow)
+
+      expect(follow_salmon.title.text).to eq 'account started following target_account@remote'
+      expect(follow_salmon.content.text).to eq 'account started following target_account@remote'
+    end
+
+    it 'returns element whose rendered view triggers follow when processed' do
+      follow = Fabricate(:follow)
+      follow_salmon = AtomSerializer.new.follow_salmon(follow)
+      xml = AtomSerializer.render(follow_salmon)
+      follow.destroy!
+      envelope = OStatus2::Salmon.new.pack(xml, follow.account.keypair)
+
+      ProcessInteractionService.new.call(envelope, follow.target_account)
+
+      expect(follow.account.following?(follow.target_account)).to be true
     end
   end
 
-  describe '#unblock_salmon' do
-    let(:xml) do
-      block = Fabricate(:block, account: author, target_account: receiver)
-      block.destroy
-      xml = AtomSerializer.render(AtomSerializer.new.unblock_salmon(block))
-      author.block!(receiver)
-      xml
+  describe '#unfollow_salmon' do
+    include_examples 'namespaces' do
+      def serialize
+        follow = Fabricate(:follow)
+        follow.destroy!
+        AtomSerializer.new.unfollow_salmon(follow)
+      end
     end
 
-    it 'returns dumpable XML' do
-      expect(xml).to be_a String
+    it 'returns entry element' do
+      follow = Fabricate(:follow)
+      follow.destroy!
+
+      unfollow_salmon = AtomSerializer.new.unfollow_salmon(follow)
+
+      expect(unfollow_salmon.name).to eq 'entry'
     end
 
-    it 'triggers unblock when processed' do
-      envelope = OStatus2::Salmon.new.pack(xml, author.keypair)
-      ProcessInteractionService.new.call(envelope, receiver)
-      expect(author.blocking?(receiver)).to be false
+    it 'appends id element with unique tag' do
+      follow = Fabricate(:follow)
+      follow.destroy!
+
+      time_before = Time.now
+      unfollow_salmon = AtomSerializer.new.unfollow_salmon(follow)
+      time_after = Time.now
+
+      expect(unfollow_salmon.id.text).to(
+        eq(TagManager.instance.unique_tag(time_before.utc, follow.id, 'Follow'))
+          .or(eq(TagManager.instance.unique_tag(time_after.utc, follow.id, 'Follow')))
+      )
+    end
+
+    it 'appends title element with description' do
+      account = Fabricate(:account, domain: nil, username: 'account')
+      target_account = Fabricate(:account, domain: 'remote', username: 'target_account')
+      follow = Fabricate(:follow, account: account, target_account: target_account)
+      follow.destroy!
+
+      unfollow_salmon = AtomSerializer.new.unfollow_salmon(follow)
+
+      expect(unfollow_salmon.title.text).to eq 'account is no longer following target_account@remote'
+    end
+
+    it 'appends content element with description' do
+      account = Fabricate(:account, domain: nil, username: 'account')
+      target_account = Fabricate(:account, domain: 'remote', username: 'target_account')
+      follow = Fabricate(:follow, account: account, target_account: target_account)
+      follow.destroy!
+
+      unfollow_salmon = AtomSerializer.new.unfollow_salmon(follow)
+
+      expect(unfollow_salmon.content.text).to eq 'account is no longer following target_account@remote'
+    end
+
+    it 'appends author element with account' do
+      account = Fabricate(:account, domain: nil, username: 'username')
+      follow = Fabricate(:follow, account: account)
+      follow.destroy!
+
+      unfollow_salmon = AtomSerializer.new.unfollow_salmon(follow)
+
+      expect(unfollow_salmon.author.id.text).to eq 'https://cb6e6126.ngrok.io/users/username'
+    end
+
+    it 'appends activity:object-type element with activity type' do
+      follow = Fabricate(:follow)
+      follow.destroy!
+
+      unfollow_salmon = AtomSerializer.new.unfollow_salmon(follow)
+
+      object_type = unfollow_salmon.nodes.find { |node| node.name == 'activity:object-type' }
+      expect(object_type.text).to eq TagManager::TYPES[:activity]
+    end
+
+    it 'appends activity:verb element with follow' do
+      follow = Fabricate(:follow)
+      follow.destroy!
+
+      unfollow_salmon = AtomSerializer.new.unfollow_salmon(follow)
+
+      verb = unfollow_salmon.nodes.find { |node| node.name == 'activity:verb' }
+      expect(verb.text).to eq TagManager::VERBS[:unfollow]
+    end
+
+    it 'appends activity:object element with target account' do
+      target_account = Fabricate(:account, domain: 'domain', uri: 'https://domain/id')
+      follow = Fabricate(:follow, target_account: target_account)
+      follow.destroy!
+
+      unfollow_salmon = AtomSerializer.new.unfollow_salmon(follow)
+
+      object = unfollow_salmon.nodes.find { |node| node.name == 'activity:object' }
+      expect(object.id.text).to eq 'https://domain/id'
+    end
+
+    it 'returns element whose rendered view triggers unfollow when processed' do
+      follow = Fabricate(:follow)
+      follow.destroy!
+      unfollow_salmon = AtomSerializer.new.unfollow_salmon(follow)
+      xml = AtomSerializer.render(unfollow_salmon)
+      follow.account.follow!(follow.target_account)
+      envelope = OStatus2::Salmon.new.pack(xml, follow.account.keypair)
+
+      ProcessInteractionService.new.call(envelope, follow.target_account)
+
+      expect(follow.account.following?(follow.target_account)).to be false
     end
   end
 
   describe '#follow_request_salmon' do
-    it 'returns dumpable XML'
-    it 'triggers follow request when processed'
+    include_examples 'namespaces' do
+      def serialize
+        follow_request = Fabricate(:follow_request)
+        AtomSerializer.new.follow_request_salmon(follow_request)
+      end
+    end
+
+    context do
+      def serialize(follow_request)
+        AtomSerializer.new.follow_request_salmon(follow_request)
+      end
+
+      it_behaves_like 'follow request salmon'
+
+      it 'appends id element with unique tag' do
+        follow_request = Fabricate(:follow_request, created_at: '2000-01-01T00:00:00Z')
+        follow_request_salmon = serialize(follow_request)
+        expect(follow_request_salmon.id.text).to eq "tag:cb6e6126.ngrok.io,2000-01-01:objectId=#{follow_request.id}:objectType=FollowRequest"
+      end
+
+      it 'appends title element with description' do
+        account = Fabricate(:account, domain: nil, username: 'account')
+        target_account = Fabricate(:account, domain: 'remote', username: 'target_account')
+        follow_request = Fabricate(:follow_request, account: account, target_account: target_account)
+        follow_request_salmon = serialize(follow_request)
+        expect(follow_request_salmon.title.text).to eq 'account requested to follow target_account@remote'
+      end
+
+      it 'returns element whose rendered view triggers follow request when processed' do
+        follow_request = Fabricate(:follow_request)
+        follow_request_salmon = serialize(follow_request)
+        xml = AtomSerializer.render(follow_request_salmon)
+        envelope = OStatus2::Salmon.new.pack(xml, follow_request.account.keypair)
+        follow_request.destroy!
+
+        ProcessInteractionService.new.call(envelope, follow_request.target_account)
+
+        expect(follow_request.account.requested?(follow_request.target_account)).to eq true
+      end
+    end
   end
 
   describe '#authorize_follow_request_salmon' do
-    it 'returns dumpable XML'
-    it 'creates follow from follow request when processed'
+    include_examples 'namespaces' do
+      def serialize
+        follow_request = Fabricate(:follow_request)
+        AtomSerializer.new.authorize_follow_request_salmon(follow_request)
+      end
+    end
+
+    it_behaves_like 'follow request salmon' do
+      def serialize(follow_request)
+        authorize_follow_request_salmon = AtomSerializer.new.authorize_follow_request_salmon(follow_request)
+        authorize_follow_request_salmon.nodes.find { |node| node.name == 'activity:object' }
+      end
+    end
+
+    it 'appends id element with unique tag' do
+      follow_request = Fabricate(:follow_request)
+
+      time_before = Time.now
+      authorize_follow_request_salmon = AtomSerializer.new.authorize_follow_request_salmon(follow_request)
+      time_after = Time.now
+
+      expect(authorize_follow_request_salmon.id.text).to(
+        eq(TagManager.instance.unique_tag(time_before.utc, follow_request.id, 'FollowRequest'))
+          .or(eq(TagManager.instance.unique_tag(time_after.utc, follow_request.id, 'FollowRequest')))
+      )
+    end
+
+    it 'appends title element with description' do
+      account = Fabricate(:account, domain: 'remote', username: 'account')
+      target_account = Fabricate(:account, domain: nil, username: 'target_account')
+      follow_request = Fabricate(:follow_request, account: account, target_account: target_account)
+
+      authorize_follow_request_salmon = AtomSerializer.new.authorize_follow_request_salmon(follow_request)
+
+      expect(authorize_follow_request_salmon.title.text).to eq 'target_account authorizes follow request by account@remote'
+    end
+
+    it 'appends activity:object-type element with activity type' do
+      follow_request = Fabricate(:follow_request)
+
+      authorize_follow_request_salmon = AtomSerializer.new.authorize_follow_request_salmon(follow_request)
+
+      object_type = authorize_follow_request_salmon.nodes.find { |node| node.name == 'activity:object-type' }
+      expect(object_type.text).to eq TagManager::TYPES[:activity]
+    end
+
+    it 'appends activity:verb element with authorize' do
+      follow_request = Fabricate(:follow_request)
+
+      authorize_follow_request_salmon = AtomSerializer.new.authorize_follow_request_salmon(follow_request)
+
+      verb = authorize_follow_request_salmon.nodes.find { |node| node.name == 'activity:verb' }
+      expect(verb.text).to eq TagManager::VERBS[:authorize]
+    end
+
+    it 'returns element whose rendered view creates follow from follow request when processed' do
+      follow_request = Fabricate(:follow_request)
+      authorize_follow_request_salmon = AtomSerializer.new.authorize_follow_request_salmon(follow_request)
+      xml = AtomSerializer.render(authorize_follow_request_salmon)
+      envelope = OStatus2::Salmon.new.pack(xml, follow_request.target_account.keypair)
+
+      ProcessInteractionService.new.call(envelope, follow_request.account)
+
+      expect(follow_request.account.following?(follow_request.target_account)).to eq true
+      expect { follow_request.reload }.to raise_error ActiveRecord::RecordNotFound
+    end
   end
 
   describe '#reject_follow_request_salmon' do
-    it 'returns dumpable XML'
-    it 'deletes follow request when processed'
+    include_examples 'namespaces' do
+      def serialize
+        follow_request = Fabricate(:follow_request)
+        AtomSerializer.new.reject_follow_request_salmon(follow_request)
+      end
+    end
+
+    it_behaves_like 'follow request salmon' do
+      def serialize(follow_request)
+        reject_follow_request_salmon = AtomSerializer.new.reject_follow_request_salmon(follow_request)
+        reject_follow_request_salmon.nodes.find { |node| node.name == 'activity:object' }
+      end
+    end
+
+    it 'appends id element with unique tag' do
+      follow_request = Fabricate(:follow_request)
+
+      time_before = Time.now
+      reject_follow_request_salmon = AtomSerializer.new.reject_follow_request_salmon(follow_request)
+      time_after = Time.now
+
+      expect(reject_follow_request_salmon.id.text).to(
+        eq(TagManager.instance.unique_tag(time_before.utc, follow_request.id, 'FollowRequest'))
+          .or(TagManager.instance.unique_tag(time_after.utc, follow_request.id, 'FollowRequest'))
+      )
+    end
+
+    it 'appends title element with description' do
+      account = Fabricate(:account, domain: 'remote', username: 'account')
+      target_account = Fabricate(:account, domain: nil, username: 'target_account')
+      follow_request = Fabricate(:follow_request, account: account, target_account: target_account)
+      reject_follow_request_salmon = AtomSerializer.new.reject_follow_request_salmon(follow_request)
+      expect(reject_follow_request_salmon.title.text).to eq 'target_account rejects follow request by account@remote'
+    end
+
+    it 'appends activity:object-type element with activity type' do
+      follow_request = Fabricate(:follow_request)
+      reject_follow_request_salmon = AtomSerializer.new.reject_follow_request_salmon(follow_request)
+      object_type = reject_follow_request_salmon.nodes.find { |node| node.name == 'activity:object-type' }
+      expect(object_type.text).to eq TagManager::TYPES[:activity]
+    end
+
+    it 'appends activity:verb element with authorize' do
+      follow_request = Fabricate(:follow_request)
+      reject_follow_request_salmon = AtomSerializer.new.reject_follow_request_salmon(follow_request)
+      verb = reject_follow_request_salmon.nodes.find { |node| node.name == 'activity:verb' }
+      expect(verb.text).to eq TagManager::VERBS[:reject]
+    end
+
+    it 'returns element whose rendered view deletes follow request when processed' do
+      follow_request = Fabricate(:follow_request)
+      reject_follow_request_salmon = AtomSerializer.new.reject_follow_request_salmon(follow_request)
+      xml = AtomSerializer.render(reject_follow_request_salmon)
+      envelope = OStatus2::Salmon.new.pack(xml, follow_request.target_account.keypair)
+
+      ProcessInteractionService.new.call(envelope, follow_request.account)
+
+      expect(follow_request.account.following?(follow_request.target_account)).to eq false
+      expect { follow_request.reload }.to raise_error ActiveRecord::RecordNotFound
+    end
+  end
+
+  describe '#object' do
+    include_examples 'status attributes' do
+      def serialize(status)
+        AtomSerializer.new.object(status)
+      end
+    end
+
+    it 'returns activity:object element' do
+      status = Fabricate(:status)
+      object = AtomSerializer.new.object(status)
+      expect(object.name).to eq 'activity:object'
+    end
+
+    it 'appends id element with URL for status' do
+      status = Fabricate(:status, created_at: '2000-01-01T00:00:00Z')
+      object = AtomSerializer.new.object(status)
+      expect(object.id.text).to eq "tag:cb6e6126.ngrok.io,2000-01-01:objectId=#{status.id}:objectType=Status"
+    end
+
+    it 'appends published element with created date' do
+      status = Fabricate(:status, created_at: '2000-01-01T00:00:00Z')
+      object = AtomSerializer.new.object(status)
+      expect(object.published.text).to eq '2000-01-01T00:00:00Z'
+    end
+
+    it 'appends updated element with updated date' do
+      status = Fabricate(:status, updated_at: '2000-01-01T00:00:00Z')
+      object = AtomSerializer.new.object(status)
+      expect(object.updated.text).to eq '2000-01-01T00:00:00Z'
+    end
+
+    it 'appends title element with title' do
+      account = Fabricate(:account, username: 'username')
+      status = Fabricate(:status, account: account)
+
+      object = AtomSerializer.new.object(status)
+
+      expect(object.title.text).to eq 'New status by username'
+    end
+
+    it 'appends author element with account' do
+      account = Fabricate(:account, username: 'username')
+      status = Fabricate(:status, account: account)
+
+      entry = AtomSerializer.new.object(status)
+
+      expect(entry.author.id.text).to eq 'https://cb6e6126.ngrok.io/users/username'
+    end
+
+    it 'appends activity:object-type element with object type' do
+      status = Fabricate(:status)
+
+      entry = AtomSerializer.new.object(status)
+
+      object_type = entry.nodes.find { |node| node.name == 'activity:object-type' }
+      expect(object_type.text).to eq TagManager::TYPES[:note]
+    end
+
+    it 'appends activity:verb element with verb' do
+      status = Fabricate(:status)
+
+      entry = AtomSerializer.new.object(status)
+
+      object_type = entry.nodes.find { |node| node.name == 'activity:verb' }
+      expect(object_type.text).to eq TagManager::VERBS[:post]
+    end
+
+    it 'appends link element for an alternative' do
+      account = Fabricate(:account, username: 'username')
+      status = Fabricate(:status, account: account)
+
+      entry = AtomSerializer.new.object(status)
+
+      link = entry.nodes.find { |node| node.name == 'link' && node[:rel] == 'alternate' }
+      expect(link[:type]).to eq 'text/html'
+      expect(link[:href]).to eq "https://cb6e6126.ngrok.io/@username/#{status.id}"
+    end
+
+    it 'appends thr:in-reply-to element if it is a reply and thread is not nil' do
+      account = Fabricate(:account, username: 'username')
+      thread = Fabricate(:status, account: account, created_at: '2000-01-01T00:00:00Z')
+      reply = Fabricate(:status, thread: thread)
+
+      entry = AtomSerializer.new.object(reply)
+
+      in_reply_to = entry.nodes.find { |node| node.name == 'thr:in-reply-to' }
+      expect(in_reply_to.ref).to eq "tag:cb6e6126.ngrok.io,2000-01-01:objectId=#{thread.id}:objectType=Status"
+      expect(in_reply_to.href).to eq "https://cb6e6126.ngrok.io/@username/#{thread.id}"
+    end
+
+    it 'does not append thr:in-reply-to element if thread is nil' do
+      status = Fabricate(:status, thread: nil)
+      entry = AtomSerializer.new.object(status)
+      entry.nodes.each { |node| expect(node.name).not_to eq 'thr:in-reply-to' }
+    end
+
+    it 'does not append ostatus:conversation element if conversation_id is nil' do
+      status = Fabricate.build(:status, conversation_id: nil)
+      status.save!(validate: false)
+
+      entry = AtomSerializer.new.object(status)
+
+      entry.nodes.each { |node| expect(node.name).not_to eq 'ostatus:conversation' }
+    end
+
+    it 'appends ostatus:conversation element if conversation_id is not nil' do
+      status = Fabricate(:status)
+      status.conversation.update!(created_at: '2000-01-01T00:00:00Z')
+
+      entry = AtomSerializer.new.object(status)
+
+      conversation = entry.nodes.find { |node| node.name == 'ostatus:conversation' }
+      expect(conversation[:ref]).to eq "tag:cb6e6126.ngrok.io,2000-01-01:objectId=#{status.conversation.id}:objectType=Conversation"
+    end
   end
 end