refactors notifications into concerns and shared examples

spec/shared/models/notifiable.rb

@@ -0,0 +1,88 @@
+shared_examples "notifiable" do
+
+  let(:notifiable) { create(model_name(described_class)) }
+
+  describe "#notification_title" do
+
+    it "returns the notifiable title when it's a root comment" do
+      notification = create(:notification, notifiable: notifiable)
+
+      expect(notification.notifiable_title).to eq notifiable.title
+    end
+
+    it "returns the notifiable title when it's a reply to a root comment" do
+      comment = create(:comment, commentable: notifiable)
+      notification = create(:notification, notifiable: comment)
+
+      expect(notification.notifiable_title).to eq notifiable.title
+    end
+
+  end
+
+  describe "notifiable_available?" do
+
+    it "returns true when it's a root comment and the notifiable is available" do
+      notification = create(:notification, notifiable: notifiable)
+
+      expect(notification.notifiable_available?).to be(true)
+    end
+
+    it "returns true when it's a reply to comment and the notifiable is available" do
+      comment = create(:comment, commentable: notifiable)
+      notification = create(:notification, notifiable: comment)
+
+      expect(notification.notifiable_available?).to be(true)
+    end
+
+    it "returns false when it's a root comment and the notifiable has been hidden" do
+      notification = create(:notification, notifiable: notifiable)
+
+      notifiable.hide
+      notification.reload
+
+      expect(notification.notifiable_available?).to_not be(true)
+    end
+
+    it "returns false when it's a reply to comment and the commentable has been hidden" do
+      comment = create(:comment, commentable: notifiable)
+      notification = create(:notification, notifiable: comment)
+
+      notifiable.hide
+      notification.reload
+
+      expect(notification.notifiable_available?).to be(false)
+    end
+
+  end
+
+  describe "check_availability" do
+
+    it "returns true if the resource is present, not hidden, nor retired" do
+      notification = create(:notification, notifiable: notifiable)
+      expect(notification.check_availability(notifiable)).to be(true)
+    end
+
+    it "returns false if the resource is not present" do
+      notification = create(:notification, notifiable: notifiable)
+      notifiable.really_destroy!
+      expect(notification.check_availability(notifiable)).to be(false)
+    end
+
+    it "returns false if the resource is not hidden" do
+      notification = create(:notification, notifiable: notifiable)
+      notifiable.hide
+      expect(notification.check_availability(notifiable)).to be(false)
+    end
+
+    it "returns false if the resource is retired" do
+      notification = create(:notification, notifiable: notifiable)
+
+      if notifiable.respond_to?(:retired_at)
+        notifiable.update(retired_at: Time.now)
+        expect(notification.check_availability(notifiable)).to be(false)
+      end
+    end
+
+  end
+
+end