applies new string literal convention in actionmailer/test

The current code base is not uniform. After some discussion,
we have chosen to go with double quotes by default.

1 files changed, 7 insertions, 7 deletions

diff --git a/actionmailer/test/asset_host_test.rb b/actionmailer/test/asset_host_test.rb
index 10cfdcf693..c02ff53afa 100644
--- a/actionmailer/test/asset_host_test.rb
+++ b/actionmailer/test/asset_host_test.rb
@@ -1,11 +1,11 @@
-require 'abstract_unit'
-require 'action_controller'
+require "abstract_unit"
+require "action_controller"
 
 class AssetHostMailer < ActionMailer::Base
   def email_with_asset
-    mail to: 'test@localhost',
-      subject: 'testing email containing asset path while asset_host is set',
-      from: 'tester@example.com'
+    mail to: "test@localhost",
+      subject: "testing email containing asset path while asset_host is set",
+      from: "tester@example.com"
   end
 end
 
@@ -27,8 +27,8 @@ class AssetHostTest < ActionMailer::TestCase
 
   def test_asset_host_as_one_argument_proc
     AssetHostMailer.config.asset_host = Proc.new { |source|
-      if source.starts_with?('/images')
-        'http://images.example.com'
+      if source.starts_with?("/images")
+        "http://images.example.com"
       end
     }
     mail = AssetHostMailer.email_with_asset