Stub out the reposts controller that will manage the flow of logic.

test/controllers/reposts_controller_test.rb

@@ -0,0 +1,7 @@
+require 'test_helper'
+
+class RepostsControllerTest < ActionController::TestCase
+  # test "the truth" do
+  #   assert true
+  # end
+end

test/helpers/reposts_helper_test.rb

@@ -0,0 +1,4 @@
+require 'test_helper'
+
+class RepostsHelperTest < ActionView::TestCase
+end