Added Enumberable#several? to encapsulate collection.size > 1 [DHH]

rails · Jun 12, 2008 · 556204a · 556204a
1 parent ed0cb91
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diff --git a/activesupport/CHANGELOG b/activesupport/CHANGELOG
@@ -1,5 +1,7 @@
 *Edge*
 
+* Added Enumberable#several? to encapsulate collection.size > 1 [DHH]
+
 * Add more standard Hash methods to ActiveSupport::OrderedHash [Steve Purcell]
 
 * Namespace Inflector, Dependencies, OrderedOptions, and TimeZone under ActiveSupport [Josh Peek]

diff --git a/activesupport/lib/active_support/core_ext/enumerable.rb b/activesupport/lib/active_support/core_ext/enumerable.rb
@@ -66,4 +66,9 @@ def index_by
       accum
     end
   end
+
+  # Returns true if the collection has more than 1 element. Functionally equivalent to collection.size > 1.
+  def several?
+    size > 1
+  end
 end
diff --git a/activesupport/test/core_ext/enumerable_test.rb b/activesupport/test/core_ext/enumerable_test.rb
@@ -63,4 +63,10 @@ def test_index_by
     assert_equal({ 5 => payments[0], 15 => payments[1], 10 => payments[2] },
                  payments.index_by { |p| p.price })
   end
+
+  def test_several
+    assert ![].several?
+    assert ![ 1 ].several?
+    assert [ 1, 2 ].several?
+  end
 end