1 files changed, 17 insertions, 29 deletions

diff --git a/activesupport/lib/active_support/testing/assertions.rb b/activesupport/lib/active_support/testing/assertions.rb
index 8466049e20..8b649c193f 100644
--- a/activesupport/lib/active_support/testing/assertions.rb
+++ b/activesupport/lib/active_support/testing/assertions.rb
@@ -3,6 +3,22 @@ require 'active_support/core_ext/object/blank'
 module ActiveSupport
   module Testing
     module Assertions
+      # Assert that an expression is not truthy. Passes if <tt>object</tt> is
+      # +nil+ or +false+. "Truthy" means "considered true in a conditional"
+      # like <tt>if foo</tt>.
+      #
+      #   assert_not nil    # => true
+      #   assert_not false  # => true
+      #   assert_not 'foo'  # => Expected "foo" to be nil or false
+      #
+      # An error message can be specified.
+      #
+      #   assert_not foo, 'foo should be false'
+      def assert_not(object, message = nil)
+        message ||= "Expected #{mu_pp(object)} to be nil or false"
+        assert !object, message
+      end
+
       # Test numeric difference between the return value of an expression as a
       # result of what is evaluated in the yielded block.
       #
@@ -50,7 +66,7 @@ module ActiveSupport
         exps = expressions.map { |e|
           e.respond_to?(:call) ? e : lambda { eval(e, block.binding) }
         }
-        before = exps.map { |e| e.call }
+        before = exps.map(&:call)
 
         yield
 
@@ -76,34 +92,6 @@ module ActiveSupport
       def assert_no_difference(expression, message = nil, &block)
         assert_difference expression, 0, message, &block
       end
-
-      # Test if an expression is blank. Passes if <tt>object.blank?</tt>
-      # is +true+.
-      #
-      #   assert_blank []   # => true
-      #   assert_blank [[]] # => [[]] is not blank
-      #
-      # An error message can be specified.
-      #
-      #   assert_blank [], 'this should be 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 <tt>object.present?</tt>
-      # is +true+.
-      #
-      #   assert_present({ data: 'x' }) # => true
-      #   assert_present({})            # => {} is blank
-      #
-      # An error message can be specified.
-      #
-      #   assert_present({ data: 'x' }, 'this should not be blank')
-      def assert_present(object, message=nil)
-        message ||= "#{object.inspect} is blank"
-        assert object.present?, message
-      end
     end
   end
 end