5 files changed, 14 insertions, 14 deletions
diff --git a/activesupport/lib/active_support/core_ext/object/try.rb b/activesupport/lib/active_support/core_ext/object/try.rb
index 534bbe3c42..48190e1e66 100644
--- a/activesupport/lib/active_support/core_ext/object/try.rb
+++ b/activesupport/lib/active_support/core_ext/object/try.rb
@@ -47,7 +47,7 @@ class Object
   end
 
   # Same as #try, but will raise a NoMethodError exception if the receiving is not nil and
-  # does not implemented the tried method.
+  # does not implement the tried method.
   def try!(*a, &b)
     if a.empty? && block_given?
       yield self
diff --git a/activesupport/test/core_ext/bigdecimal_test.rb b/activesupport/test/core_ext/bigdecimal_test.rb
index a5987044b9..b386e55d6c 100644
--- a/activesupport/test/core_ext/bigdecimal_test.rb
+++ b/activesupport/test/core_ext/bigdecimal_test.rb
@@ -1,5 +1,4 @@
 require 'abstract_unit'
-require 'bigdecimal'
 require 'active_support/core_ext/big_decimal'
 
 class BigDecimalTest < ActiveSupport::TestCase
diff --git a/activesupport/test/core_ext/string_ext_test.rb b/activesupport/test/core_ext/string_ext_test.rb
index 2537af0394..3cb66d4eec 100644
--- a/activesupport/test/core_ext/string_ext_test.rb
+++ b/activesupport/test/core_ext/string_ext_test.rb
@@ -11,13 +11,6 @@ require 'active_support/core_ext/string/strip'
 require 'active_support/core_ext/string/output_safety'
 require 'active_support/core_ext/string/indent'
 
-module Ace
-  module Base
-    class Case
-    end
-  end
-end
-
 class StringInflectionsTest < ActiveSupport::TestCase
   include InflectorTestCases
   include ConstantizeTestCases
diff --git a/activesupport/test/transliterate_test.rb b/activesupport/test/transliterate_test.rb
index ce91c443e1..e0f85f4e7c 100644
--- a/activesupport/test/transliterate_test.rb
+++ b/activesupport/test/transliterate_test.rb
@@ -3,7 +3,6 @@ require 'abstract_unit'
 require 'active_support/inflector/transliterate'
 
 class TransliterateTest < ActiveSupport::TestCase
-
   def test_transliterate_should_not_change_ascii_chars
     (0..127).each do |byte|
       char = [byte].pack("U")
@@ -24,12 +23,13 @@ class TransliterateTest < ActiveSupport::TestCase
   def test_transliterate_should_work_with_custom_i18n_rules_and_uncomposed_utf8
     char = [117, 776].pack("U*") # "ü" as ASCII "u" plus COMBINING DIAERESIS
     I18n.backend.store_translations(:de, :i18n => {:transliterate => {:rule => {"ü" => "ue"}}})
-    I18n.locale = :de
+    default_locale, I18n.locale = I18n.locale, :de
     assert_equal "ue", ActiveSupport::Inflector.transliterate(char)
+  ensure
+    I18n.locale = default_locale
   end
 
   def test_transliterate_should_allow_a_custom_replacement_char
     assert_equal "a*b", ActiveSupport::Inflector.transliterate("a索b", "*")
   end
-
 end
diff --git a/activesupport/test/xml_mini_test.rb b/activesupport/test/xml_mini_test.rb
index a025279e16..d992028323 100644
--- a/activesupport/test/xml_mini_test.rb
+++ b/activesupport/test/xml_mini_test.rb
@@ -106,7 +106,11 @@ module XmlMiniTest
     module Nokogiri end
 
     setup do
-      @xml = ActiveSupport::XmlMini
+      @xml, @default_backend = ActiveSupport::XmlMini, ActiveSupport::XmlMini.backend
+    end
+
+    teardown do
+      ActiveSupport::XmlMini.backend = @default_backend
     end
 
     test "#with_backend should switch backend and then switch back" do
@@ -135,7 +139,11 @@ module XmlMiniTest
     module LibXML end
 
     setup do
-      @xml = ActiveSupport::XmlMini
+      @xml, @default_backend = ActiveSupport::XmlMini, ActiveSupport::XmlMini.backend
+    end
+
+    teardown do
+      ActiveSupport::XmlMini.backend = @default_backend
     end
 
     test "#with_backend should be thread-safe" do