1 files changed, 8 insertions, 0 deletions
diff --git a/test/ruby/test_lazy_enumerator.rb b/test/ruby/test_lazy_enumerator.rb
index 72fe1a4a24..caa9a9c713 100644
--- a/test/ruby/test_lazy_enumerator.rb
+++ b/test/ruby/test_lazy_enumerator.rb
@@ -452,6 +452,14 @@ class TestLazyEnumerator < Test::Unit::TestCase
 EOS
   end
 
+  def test_lazy_eager
+    lazy = [1, 2, 3].lazy.map { |x| x * 2 }
+    enum = lazy.eager
+    assert_equal Enumerator, enum.class
+    assert_equal 3, enum.size
+    assert_equal [1, 2, 3], enum.map { |x| x / 2 }
+  end
+
   def test_lazy_to_enum
     lazy = [1, 2, 3].lazy
     def lazy.foo(*args)