6 files changed, 39 insertions, 14 deletions
diff --git a/actionmailer/test/abstract_unit.rb b/actionmailer/test/abstract_unit.rb
index 0b076e1ff9..3a519253f9 100644
--- a/actionmailer/test/abstract_unit.rb
+++ b/actionmailer/test/abstract_unit.rb
@@ -13,20 +13,17 @@ end
 
 require 'active_support/core_ext/kernel/reporting'
 
-require 'active_support/core_ext/string/encoding'
-if "ruby".encoding_aware?
-  # These are the normal settings that will be set up by Railties
-  # TODO: Have these tests support other combinations of these values
-  silence_warnings do
-    Encoding.default_internal = "UTF-8"
-    Encoding.default_external = "UTF-8"
-  end
+# These are the normal settings that will be set up by Railties
+# TODO: Have these tests support other combinations of these values
+silence_warnings do
+  Encoding.default_internal = "UTF-8"
+  Encoding.default_external = "UTF-8"
 end
 
 lib = File.expand_path("#{File.dirname(__FILE__)}/../lib")
 $:.unshift(lib) unless $:.include?('lib') || $:.include?(lib)
 
-require 'test/unit'
+require 'minitest/autorun'
 require 'action_mailer'
 require 'action_mailer/test_case'
 
diff --git a/actionmailer/test/asset_host_test.rb b/actionmailer/test/asset_host_test.rb
index b24eca5fbb..696a9f1174 100644
--- a/actionmailer/test/asset_host_test.rb
+++ b/actionmailer/test/asset_host_test.rb
@@ -9,7 +9,7 @@ class AssetHostMailer < ActionMailer::Base
   end
 end
 
-class AssetHostTest < Test::Unit::TestCase
+class AssetHostTest < ActiveSupport::TestCase
   def setup
     set_delivery_method :test
     ActionMailer::Base.perform_deliveries = true
diff --git a/actionmailer/test/base_test.rb b/actionmailer/test/base_test.rb
index 9fdd0e1ced..65550ab505 100644
--- a/actionmailer/test/base_test.rb
+++ b/actionmailer/test/base_test.rb
@@ -107,7 +107,7 @@ class BaseTest < ActiveSupport::TestCase
     assert_equal(1, email.attachments.length)
     assert_equal('invoice.jpg', email.attachments[0].filename)
     expected = "\312\213\254\232)b"
-    expected.force_encoding(Encoding::BINARY) if '1.9'.respond_to?(:force_encoding)
+    expected.force_encoding(Encoding::BINARY)
     assert_equal expected, email.attachments['invoice.jpg'].decoded
   end
 
@@ -116,7 +116,7 @@ class BaseTest < ActiveSupport::TestCase
     assert_equal(1, email.attachments.length)
     assert_equal('invoice.jpg', email.attachments[0].filename)
     expected = "\312\213\254\232)b"
-    expected.force_encoding(Encoding::BINARY) if '1.9'.respond_to?(:force_encoding)
+    expected.force_encoding(Encoding::BINARY)
     assert_equal expected, email.attachments['invoice.jpg'].decoded
   end
 
diff --git a/actionmailer/test/mail_layout_test.rb b/actionmailer/test/mail_layout_test.rb
index def8da81b8..71e93c29f1 100644
--- a/actionmailer/test/mail_layout_test.rb
+++ b/actionmailer/test/mail_layout_test.rb
@@ -43,7 +43,7 @@ class ExplicitLayoutMailer < ActionMailer::Base
   end
 end
 
-class LayoutMailerTest < Test::Unit::TestCase
+class LayoutMailerTest < ActiveSupport::TestCase
   def setup
     set_delivery_method :test
     ActionMailer::Base.perform_deliveries = true
diff --git a/actionmailer/test/mailers/base_mailer.rb b/actionmailer/test/mailers/base_mailer.rb
index 9416bc718e..e55d72fdb4 100644
--- a/actionmailer/test/mailers/base_mailer.rb
+++ b/actionmailer/test/mailers/base_mailer.rb
@@ -113,6 +113,6 @@ class BaseMailer < ActionMailer::Base
   end
 
   def email_with_translations
-    mail :body => render("email_with_translations.html")
+    mail :body => render("email_with_translations", :formats => [:html])
   end
 end
diff --git a/actionmailer/test/test_test.rb b/actionmailer/test/test_test.rb
new file mode 100644
index 0000000000..86fd37bea6
--- /dev/null
+++ b/actionmailer/test/test_test.rb
@@ -0,0 +1,28 @@
+require 'abstract_unit'
+
+class TestTestMailer < ActionMailer::Base
+end
+
+class CrazyNameMailerTest < ActionMailer::TestCase
+  tests TestTestMailer
+
+  def test_set_mailer_class_manual
+    assert_equal TestTestMailer, self.class.mailer_class
+  end
+end
+
+class CrazySymbolNameMailerTest < ActionMailer::TestCase
+  tests :test_test_mailer
+
+  def test_set_mailer_class_manual_using_symbol
+    assert_equal TestTestMailer, self.class.mailer_class
+  end
+end
+
+class CrazyStringNameMailerTest < ActionMailer::TestCase
+  tests 'test_test_mailer'
+
+  def test_set_mailer_class_manual_using_string
+    assert_equal TestTestMailer, self.class.mailer_class
+  end
+end