Allow translation content styling through scrubber

app/scrubbers/translation_content_scrubber.rb

@@ -0,0 +1,13 @@
+class TranslationContentScrubber < Rails::Html::PermitScrubber
+  def initialize
+    super
+    self.tags = %w( strong em b i p code pre tt samp kbd var sub
+        sup dfn cite big small address hr br div span h1 h2 h3 h4 h5 h6 ul ol li dl dt dd abbr
+        acronym a img blockquote del ins )
+    self.attributes = %w( href src width height alt cite datetime title class name xml:lang abbr style )
+  end
+
+  def skip_node?(node)
+    node.text?
+  end
+end

app/views/admin/translations/show.html.erb

@@ -23,7 +23,7 @@
 
 <%= panel do %>
     <div class="panel-body problem-content">
-        <%= sanitize @translation.content %>
+        <%= sanitize @translation.content, scrubber: TranslationContentScrubber.new %>
     </div>
 <% end %>
 <div class="text-center">

app/views/problems/show.html.erb

@@ -11,7 +11,7 @@
 <% end %>
 <%= panel do %>
     <div class="panel-body problem-content">
-      <%= sanitize @problem.content %>
+      <%= sanitize @problem.content, scrubber: TranslationContentScrubber.new %>
     </div>
 <% end %>
 <div class="text-center">

test/controllers/admin/dashboard_controller_test.rb

@@ -27,9 +27,9 @@ class Admin::DashboardControllerTest < ActionDispatch::IntegrationTest
 
   test "should fail incorrect problem count" do
     login_admin
-    post admin_dashboard_update_problem_count_url(problem_count: 2)
+    post admin_dashboard_update_problem_count_url(problem_count: 3)
     assert_redirected_to admin_dashboard_index_url
-    assert_equal 3, Problem.count
+    assert_equal 4, Problem.count
   end
 
 end

test/controllers/problems_controller_test.rb

@@ -22,4 +22,12 @@ class ProblemsControllerTest < ActionDispatch::IntegrationTest
     assert_redirected_to problem_path(id: 2)
   end
 
+  test "should contain HTML styles in translation content" do
+    get problem_url(id: 4)
+    assert_response :success
+    assert_select ".problem-content" do
+      assert_select "b", 1
+      assert_select 'p[style="text-align:center;"]', 1
+    end
+  end
 end

test/fixtures/problems.yml

@@ -11,3 +11,7 @@ two:
 three:
   id: 3
 
+four:
+  id: 4
+  translation: translation_with_html
+

test/fixtures/translations.yml

@@ -17,3 +17,9 @@ translation_two_alternative:
   title: Second title
   content: The changed content for the second problem
   status: 0
+
+translation_with_html:
+  problem_id: 4
+  title: Some title
+  content: 'p>This is some <b>custom</b> text.</p><p style="text-align:center;">This is centered.</p>'
+  status: 1

test/models/problem_test.rb

@@ -26,7 +26,7 @@ class ProblemTest < ActiveSupport::TestCase
   end
 
   test "should return correct number of translated problems" do
-    assert_equal 2, Problem.translated_count
+    assert_equal 3, Problem.translated_count
   end
 
   test "should allow for problem count updating" do
@@ -44,7 +44,7 @@ class ProblemTest < ActiveSupport::TestCase
     assert_raises ArgumentError do
       Problem.update_count(1)
     end
-    assert_equal 3, Problem.count()
+    assert_equal 4, Problem.count()
     assert_equal "First title", Problem.find(1).title
   end
 end