2 files changed, 8 insertions, 6 deletions
diff --git a/activesupport/lib/active_support/testing/assertions.rb b/activesupport/lib/active_support/testing/assertions.rb
index 8c68f42781..a4e0361a32 100644
--- a/activesupport/lib/active_support/testing/assertions.rb
+++ b/activesupport/lib/active_support/testing/assertions.rb
@@ -67,15 +67,17 @@ module ActiveSupport
       # Test if an expression is blank. Passes if object.blank? is true.
       #
       #   assert_blank [] # => true
-      def assert_blank(object)
-        assert object.blank?, "#{object.inspect} is not blank"
+      def assert_blank(object, message=nil)
+        message ||= "#{object.inspect} is not blank"
+        assert object.blank?, message
       end
 
       # Test if an expression is not blank. Passes if object.present? is true.
       #
       #   assert_present {:data => 'x' } # => true
-      def assert_present(object)
-        assert object.present?, "#{object.inspect} is blank"
+      def assert_present(object, message=nil)
+        message ||= "#{object.inspect} is blank"
+        assert object.present?, message
       end
     end
   end
diff --git a/activesupport/test/caching_test.rb b/activesupport/test/caching_test.rb
index b79a7bbaec..28ef695a4b 100644
--- a/activesupport/test/caching_test.rb
+++ b/activesupport/test/caching_test.rb
@@ -649,12 +649,12 @@ class CacheStoreLoggerTest < ActiveSupport::TestCase
 
   def test_logging
     @cache.fetch('foo') { 'bar' }
-    assert @buffer.string.present?
+    assert_present @buffer.string
   end
 
   def test_mute_logging
     @cache.mute { @cache.fetch('foo') { 'bar' } }
-    assert @buffer.string.blank?
+    assert_blank @buffer.string
   end
 end