lib/active_support/testing/assertions.rb in activesupport-3.0.0.beta vs lib/active_support/testing/assertions.rb in activesupport-3.0.0.beta2

@@ -1,6 +1,7 @@
 require 'active_support/core_ext/array/wrap'
+require 'active_support/core_ext/object/blank'
 
 module ActiveSupport
   module Testing
     module Assertions
       # Test numeric difference between the return value of an expression as a result of what is evaluated
@@ -59,9 +60,23 @@
       #   assert_no_difference 'Article.count', "An Article should not be destroyed" do
       #     post :create, :article => invalid_attributes
       #   end
       def assert_no_difference(expression, message = nil, &block)
         assert_difference expression, 0, message, &block
+      end
+      
+      # 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"
+      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"
       end
     end
   end
 end