Add tests for moderation reports

Added an HTML render for the new endpoint to get the tests to work.
It should probably have had one anyways so this is alright.

test/functional/moderation_reports_controller_test.rb

@@ -0,0 +1,66 @@
+require 'test_helper'
+
+class ModerationReportsControllerTest < ActionDispatch::IntegrationTest
+  context "The moderation reports controller" do
+    setup do
+      travel_to(2.weeks.ago) do
+        @user = create(:user)
+        @builder = create(:builder_user)
+        @mod = create(:moderator_user)
+      end
+
+      @user.as_current do
+        @comment = create(:comment)
+      end
+    end
+
+    context "new action" do
+      should "render the access denied page" do
+        get_auth new_moderation_report_path, @user
+        assert_response 403
+        assert_select "h1", /Access Denied/
+      end
+
+      should "render" do
+        get_auth new_moderation_report_path, @mod, params: {:moderation_report => {:model_id => @comment.id, :model_type => "Comment"}}
+        assert_response :success
+      end
+    end
+
+    context "index action" do
+      setup do
+        @builder.as_current do
+          create(:moderation_report, model: @comment)
+        end
+      end
+
+      should "render the access denied page" do
+        get_auth moderation_reports_path, @builder
+        assert_response 403
+        assert_select "h1", /Access Denied/
+      end
+
+      should "render" do
+        get_auth moderation_reports_path, @mod
+        assert_response :success
+      end
+
+      context "with search parameters" do
+        should "render" do
+          get_auth moderation_reports_path, @mod, params: {:search => {:model_id => @comment.id}}
+          assert_response :success
+        end
+      end
+
+      context "create action" do
+        should "create a new moderation report" do
+          assert_difference("ModerationReport.count", 1) do
+            assert_difference("ModerationReport.count") do
+              post_auth moderation_reports_path, @builder, params: {:format => "js", :moderation_report => {:model_id => @comment.id, :model_type => "Comment", :reason => "xxx"}}
+            end
+          end
+        end
+      end
+    end
+  end
+end