Added Object#try. ( Taken from http://ozmm.org/posts/try.html ) [Chris Wanstrath]

1 files changed, 25 insertions, 0 deletions

diff --git a/activesupport/test/core_ext/object_and_class_ext_test.rb b/activesupport/test/core_ext/object_and_class_ext_test.rb
index e88dcb52d5..fbdce56ac2 100644
--- a/activesupport/test/core_ext/object_and_class_ext_test.rb
+++ b/activesupport/test/core_ext/object_and_class_ext_test.rb
@@ -247,3 +247,28 @@ class ObjectInstanceVariableTest < Test::Unit::TestCase
       [arg] + instance_exec('bar') { |v| [reverse, v] } }
   end
 end
+
+class ObjectTryTest < Test::Unit::TestCase
+  def setup
+    @string = "Hello"
+  end
+
+  def test_nonexisting_method
+    method = :undefined_method
+    assert !@string.respond_to?(method)
+    assert_nil @string.try(method)
+  end
+  
+  def test_valid_method
+    assert_equal 5, @string.try(:size)
+  end
+
+  def test_valid_private_method
+    class << @string
+      private :size
+    end
+
+    assert_equal 5, @string.try(:size)
+  end
+
+end