1 files changed, 15 insertions, 0 deletions
diff --git a/spec/ruby/core/enumerator/each_spec.rb b/spec/ruby/core/enumerator/each_spec.rb
index 3af16e5587..8c9785cc85 100644
--- a/spec/ruby/core/enumerator/each_spec.rb
+++ b/spec/ruby/core/enumerator/each_spec.rb
@@ -86,4 +86,19 @@ describe "Enumerator#each" do
     ret.should be_an_instance_of(Enumerator)
     ret.should_not equal(@enum_with_arguments)
   end
+
+  it "does not destructure yielded array values when chaining each.map" do
+    result = [[[1]]].each.map { |a, b| [a, b] }
+    result.should == [[[1], nil]]
+  end
+
+  it "preserves array values yielded from the enumerator" do
+    result = [[1, 2]].each.map { |a| a }
+    result.should == [[1, 2]]
+  end
+
+  it "allows destructuring to occur in the block, not the enumerator" do
+    result = [[1, 2]].each.map { |a, b| a }
+    result.should == [1]
+  end
 end