write FetchController spec

spec/controllers/diaspora_federation/fetch_controller_spec.rb

@@ -0,0 +1,83 @@
+module DiasporaFederation
+  describe FetchController, type: :controller do
+    routes { DiasporaFederation::Engine.routes }
+
+    let(:guid) { "12345678901234567890" }
+    let(:post) { FactoryGirl.build(:status_message_entity, guid: guid, author: alice.diaspora_id) }
+
+    describe "GET #fetch" do
+      it "returns the magic-envelope with the status message" do
+        expect(DiasporaFederation.callbacks).to receive(:trigger).with(
+          :fetch_public_entity, "StatusMessage", guid
+        ).and_return(post)
+        expect(DiasporaFederation.callbacks).to receive(:trigger).with(
+          :fetch_private_key_by_diaspora_id, alice.diaspora_id
+        ).and_return(alice.private_key)
+
+        get :fetch, type: "status_message", guid: guid
+
+        expect(DiasporaFederation.callbacks).to receive(:trigger).with(
+          :fetch_public_key_by_diaspora_id, alice.diaspora_id
+        ).and_return(alice.public_key)
+
+        magic_env = Nokogiri::XML::Document.parse(response.body).root
+        entity = Salmon::MagicEnvelope.unenvelop(magic_env)
+
+        expect(entity).to be_a(Entities::StatusMessage)
+        expect(entity.guid).to eq(guid)
+        expect(entity.author).to eq(alice.diaspora_id)
+        expect(entity.raw_message).to eq(post.raw_message)
+      end
+
+      it "works with type 'post'" do
+        expect(DiasporaFederation.callbacks).to receive(:trigger).with(
+          :fetch_public_entity, "Post", guid
+        ).and_return(post)
+        expect(DiasporaFederation.callbacks).to receive(:trigger).with(
+          :fetch_private_key_by_diaspora_id, alice.diaspora_id
+        ).and_return(alice.private_key)
+
+        get :fetch, type: "post", guid: guid
+
+        expect(DiasporaFederation.callbacks).to receive(:trigger).with(
+          :fetch_public_key_by_diaspora_id, alice.diaspora_id
+        ).and_return(alice.public_key)
+
+        magic_env = Nokogiri::XML::Document.parse(response.body).root
+        entity = Salmon::MagicEnvelope.unenvelop(magic_env)
+
+        expect(entity).to be_a(Entities::StatusMessage)
+        expect(entity.guid).to eq(guid)
+        expect(entity.author).to eq(alice.diaspora_id)
+        expect(entity.raw_message).to eq(post.raw_message)
+      end
+
+      it "redirects when the entity is from another pod" do
+        expect(DiasporaFederation.callbacks).to receive(:trigger).with(
+          :fetch_public_entity, "Post", guid
+        ).and_return(post)
+        expect(DiasporaFederation.callbacks).to receive(:trigger).with(
+          :fetch_private_key_by_diaspora_id, alice.diaspora_id
+        ).and_return(nil)
+        expect(DiasporaFederation.callbacks).to receive(:trigger).with(
+          :fetch_person_url_to, alice.diaspora_id, "/fetch/post/#{guid}"
+        ).and_return("http://example.org/fetch/post/#{guid}")
+
+        get :fetch, type: "post", guid: guid
+
+        expect(response).to be_redirect
+        expect(response).to redirect_to "http://example.org/fetch/post/#{guid}"
+      end
+
+      it "404s when the post does not exist" do
+        expect(DiasporaFederation.callbacks).to receive(:trigger).with(
+          :fetch_public_entity, "Post", guid
+        ).and_return(nil)
+
+        get :fetch, type: "post", guid: guid
+
+        expect(response.status).to eq(404)
+      end
+    end
+  end
+end