Fix unsubscribe controller spec.

spec/controllers/unsubscribes_controller_spec.rb

@@ -5,13 +5,13 @@ describe UnsubscribesController do
 
   describe "show" do
     it "responds with success" do
-      get :show, email: CGI.escape('me@example.com')
+      get :show, email:  Base64.urlsafe_encode64('me@example.com')
 
       assert_response :success
     end
 
     it "behaves the same if email address isn't known in the system" do
-      get :show, email: CGI.escape('i@dont_exists.com')
+      get :show, email: Base64.urlsafe_encode64('i@dont_exists.com')
 
       assert_response :success
     end
@@ -19,14 +19,14 @@ describe UnsubscribesController do
 
   describe "create" do
     it "unsubscribes the connected user" do
-      post :create, email: CGI.escape('me@example.com')
+      post :create, email: Base64.urlsafe_encode64('me@example.com')
 
       assert user.reload.admin_email_unsubscribed_at
     end
 
     # Don't tell if the email does not exists
     it "behaves the same if email address isn't known in the system" do
-      post :create, email: CGI.escape('i@dont_exists.com')
+      post :create, email: Base64.urlsafe_encode64('i@dont_exists.com')
 
       assert_response :redirect
     end