1 files changed, 32 insertions, 0 deletions
diff --git a/activesupport/test/core_ext/hash_ext_test.rb b/activesupport/test/core_ext/hash_ext_test.rb
index 706e218abc..9d1d6ec33f 100644
--- a/activesupport/test/core_ext/hash_ext_test.rb
+++ b/activesupport/test/core_ext/hash_ext_test.rb
@@ -310,6 +310,38 @@ class HashExtTest < Test::Unit::TestCase
     assert_equal expected, original.except!(:c)
     assert_equal expected, original
   end
+
+  def test_without
+    original = { :a => 'x', :b => 'y', :c => 10 }
+    expected = { :a => 'x' }
+
+    # Should return a hash without the given keys.
+    assert_equal expected, original.without(:b, :c)
+    assert_not_equal expected, original
+
+    # Should ignore non-existant keys.
+    assert_equal expected, original.without(:b, :c, :d)
+
+    # Should replace the hash with the given keys taken away.
+    assert_equal expected, original.without!(:b, :c)
+    assert_equal expected, original
+  end
+
+  def test_indifferent_without
+    original = { :a => 'x', :b => 'y', :c => 10 }.with_indifferent_access
+    expected = { :c => 10 }.with_indifferent_access
+
+    [['a', 'b'], [:a, :b]].each do |keys|
+      # Should return a new hash without the given keys.
+      assert_equal expected, original.without(*keys), keys.inspect
+      assert_not_equal expected, original
+
+      # Should replace the hash without the given keys.
+      copy = original.dup
+      assert_equal expected, copy.without!(*keys)
+      assert_equal expected, copy
+    end
+  end
 end
 
 class IWriteMyOwnXML