Privatize unneededly protected methods in Active Support tests

activesupport/test/descendants_tracker_test_cases.rb

@@ -40,7 +40,7 @@ def test_clear
     end
   end
 
-  protected
+  private
 
     def assert_equal_sets(expected, actual)
       assert_equal Set.new(expected), Set.new(actual)

activesupport/test/json/encoding_test.rb

@@ -452,7 +452,7 @@ def test_to_json_works_when_as_json_returns_NaN_number
     assert_equal '{"number":null}', NaNNumber.new.to_json
   end
 
-  protected
+  private
 
     def object_keys(json_object)
       json_object[1..-2].scan(/([^{}:,\s]+):/).flatten.sort

activesupport/test/multibyte_conformance_test.rb

@@ -82,7 +82,7 @@ def test_normalizations_KD
     end
   end
 
-  protected
+  private
     def each_line_of_norm_tests(&block)
       File.open(File.join(CACHE_DIR, UNIDATA_FILE), "r") do | f |
         until f.eof?

activesupport/test/multibyte_grapheme_break_conformance_test.rb

@@ -28,7 +28,7 @@ def test_breaks
     end
   end
 
-  protected
+  private
     def each_line_of_break_tests(&block)
       lines = 0
       max_test_lines = 0 # Don't limit below 21, because that's the header of the testfile

activesupport/test/multibyte_normalization_conformance_test.rb

@@ -83,7 +83,7 @@ def test_normalizations_KD
     end
   end
 
-  protected
+  private
     def each_line_of_norm_tests(&block)
       lines = 0
       max_test_lines = 0 # Don't limit below 38, because that's the header of the testfile

activesupport/test/notifications_test.rb

@@ -273,7 +273,7 @@ def test_event_is_parent_based_on_children
       assert !not_child.parent_of?(parent)
     end
 
-    protected
+    private
       def random_id
         @random_id ||= SecureRandom.hex(10)
       end

activesupport/test/test_case_test.rb

@@ -257,7 +257,7 @@ def setup
   def teardown
   end
 
-  protected
+  private
 
     def reset_callback_record
       @called_back = []
@@ -282,7 +282,7 @@ def test_inherited_setup_callbacks
     assert_equal [:foo, :sentinel, :bar], self.class._teardown_callbacks.map(&:raw_filter)
   end
 
-  protected
+  private
     def bar
       @called_back << :bar
     end