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-rw-r--r--activesupport/test/core_ext/hash/transform_values_test.rb12
1 files changed, 12 insertions, 0 deletions
diff --git a/activesupport/test/core_ext/hash/transform_values_test.rb b/activesupport/test/core_ext/hash/transform_values_test.rb
index 45ed11fef7..7c33227dc0 100644
--- a/activesupport/test/core_ext/hash/transform_values_test.rb
+++ b/activesupport/test/core_ext/hash/transform_values_test.rb
@@ -53,9 +53,21 @@ class TransformValuesTest < ActiveSupport::TestCase
assert_equal Enumerator, enumerator.class
end
+ test "transform_values! returns an Enumerator if no block is given" do
+ original = { a: 'a', b: 'b' }
+ enumerator = original.transform_values!
+ assert_equal Enumerator, enumerator.class
+ end
+
test "transform_values is chainable with Enumerable methods" do
original = { a: 'a', b: 'b' }
mapped = original.transform_values.with_index { |v, i| [v, i].join }
assert_equal({ a: 'a0', b: 'b1' }, mapped)
end
+
+ test "transform_values! is chainable with Enumerable methods" do
+ original = { a: 'a', b: 'b' }
+ original.transform_values!.with_index { |v, i| [v, i].join }
+ assert_equal({ a: 'a0', b: 'b1' }, original)
+ end
end