Extract methods in poll status component

This way we remove duplication in the HTML.

We're also adding a test checking what happens when users can vote in
order to test the `render?` method we've added.

app/components/polls/access_status_component.html.erb

@@ -1,19 +1,3 @@
-<% if current_user %>
-  <% if current_user.unverified? %>
-    <div class="access-status unverified" title="<%= t("polls.index.unverified") %>">
-      <span class="show-for-sr"><%= t("polls.index.unverified") %></span>
-    </div>
-  <% elsif cannot?(:answer, poll) %>
-    <div class="access-status cant-answer" title="<%= t("polls.index.cant_answer") %>">
-      <span class="show-for-sr"><%= t("polls.index.cant_answer") %></span>
-    </div>
-  <% elsif !poll.votable_by?(current_user) %>
-    <div class="access-status already-answer" title="<%= t("polls.index.already_answer") %>">
-      <span class="show-for-sr"><%= t("polls.index.already_answer") %></span>
-    </div>
-  <% end %>
-<% else %>
-  <div class="access-status not-logged-in" title="<%= t("polls.index.not_logged_in") %>">
-    <span class="show-for-sr"><%= t("polls.index.not_logged_in") %></span>
-  </div>
-<% end %>
+<div class="access-status <%= html_class %>" title="<%= text %>">
+  <span class="show-for-sr"><%= text %></span>
+</div>

app/components/polls/access_status_component.rb

@@ -5,4 +5,32 @@ class Polls::AccessStatusComponent < ApplicationComponent
   def initialize(poll)
     @poll = poll
   end
+
+  def render?
+    attributes.present?
+  end
+
+  private
+
+    def text
+      attributes[:text]
+    end
+
+    def html_class
+      attributes[:class]
+    end
+
+    def attributes
+      if current_user
+        if current_user.unverified?
+          { text: t("polls.index.unverified"), class: "unverified" }
+        elsif cannot?(:answer, poll)
+          { text: t("polls.index.cant_answer"), class: "cant-answer" }
+        elsif !poll.votable_by?(current_user)
+          { text: t("polls.index.already_answer"), class: "already-answer" }
+        end
+      else
+        { text: t("polls.index.not_logged_in"), class: "not-logged-in" }
+      end
+    end
 end