fix tests on action_mailer

Include appropriate helpers and use `assert_dom_equal` where applicable

3 files changed, 8 insertions, 6 deletions

diff --git a/actionmailer/test/asset_host_test.rb b/actionmailer/test/asset_host_test.rb
index dd3b38544f..10cfdcf693 100644
--- a/actionmailer/test/asset_host_test.rb
+++ b/actionmailer/test/asset_host_test.rb
@@ -22,7 +22,7 @@ class AssetHostTest < ActionMailer::TestCase
 
   def test_asset_host_as_string
     mail = AssetHostMailer.email_with_asset
-    assert_equal %Q{<img alt="Somelogo" src="http://www.example.com/images/somelogo.png" />}, mail.body.to_s.strip
+    assert_dom_equal %Q{<img alt="Somelogo" src="http://www.example.com/images/somelogo.png" />}, mail.body.to_s.strip
   end
 
   def test_asset_host_as_one_argument_proc
@@ -32,6 +32,6 @@ class AssetHostTest < ActionMailer::TestCase
       end
     }
     mail = AssetHostMailer.email_with_asset
-    assert_equal %Q{<img alt="Somelogo" src="http://images.example.com/images/somelogo.png" />}, mail.body.to_s.strip
+    assert_dom_equal %Q{<img alt="Somelogo" src="http://images.example.com/images/somelogo.png" />}, mail.body.to_s.strip
   end
 end
diff --git a/actionmailer/test/base_test.rb b/actionmailer/test/base_test.rb
index dcb6959543..0da22f591f 100644
--- a/actionmailer/test/base_test.rb
+++ b/actionmailer/test/base_test.rb
@@ -10,6 +10,8 @@ require 'mailers/proc_mailer'
 require 'mailers/asset_mailer'
 
 class BaseTest < ActiveSupport::TestCase
+  include Rails::Dom::Testing::Assertions
+
   setup do
     @original_delivery_method = ActionMailer::Base.delivery_method
     ActionMailer::Base.delivery_method = :test
@@ -536,7 +538,7 @@ class BaseTest < ActiveSupport::TestCase
 
     mail = AssetMailer.welcome
 
-    assert_equal(%{<img alt="Dummy" src="http://global.com/images/dummy.png" />}, mail.body.to_s.strip)
+    assert_dom_equal(%{<img alt="Dummy" src="http://global.com/images/dummy.png" />}, mail.body.to_s.strip)
   end
 
   test "assets tags should use a Mailer's asset_host settings when available" do
@@ -550,7 +552,7 @@ class BaseTest < ActiveSupport::TestCase
 
     mail = TempAssetMailer.welcome
 
-    assert_equal(%{<img alt="Dummy" src="http://local.com/images/dummy.png" />}, mail.body.to_s.strip)
+    assert_dom_equal(%{<img alt="Dummy" src="http://local.com/images/dummy.png" />}, mail.body.to_s.strip)
   end
 
   test 'the view is not rendered when mail was never called' do
diff --git a/actionmailer/test/url_test.rb b/actionmailer/test/url_test.rb
index e79b2ca978..be7532d42f 100644
--- a/actionmailer/test/url_test.rb
+++ b/actionmailer/test/url_test.rb
@@ -66,13 +66,13 @@ class ActionMailerUrlTest < ActionMailer::TestCase
 
     expected.message_id = '<123@456>'
     created.message_id = '<123@456>'
-    assert_equal expected.encoded, created.encoded
+    assert_dom_equal expected.encoded, created.encoded
 
     assert_nothing_raised { UrlTestMailer.signed_up_with_url(@recipient).deliver_now }
     assert_not_nil ActionMailer::Base.deliveries.first
     delivered = ActionMailer::Base.deliveries.first
 
     delivered.message_id = '<123@456>'
-    assert_equal expected.encoded, delivered.encoded
+    assert_dom_equal expected.encoded, delivered.encoded
   end
 end