diff --git a/activesupport/test/core_ext/numeric_ext_test.rb b/activesupport/test/core_ext/numeric_ext_test.rb
index 996b16640552bac1bc1810e4cf9c157734b1a0cc..a773339b29b739406c38147588c119b6b1150d7f 100644
--- a/activesupport/test/core_ext/numeric_ext_test.rb
+++ b/activesupport/test/core_ext/numeric_ext_test.rb
@@ -129,4 +129,19 @@ def test_unit_in_terms_of_another
       assert_equal right, left
     end
   end
+  
+  def test_units_as_bytes_independently
+    assert_equal 3145728, 3.megabytes
+    assert_equal 3145728, 3.megabyte
+    assert_equal 3072, 3.kilobytes
+    assert_equal 3072, 3.kilobyte
+    assert_equal 3221225472, 3.gigabytes
+    assert_equal 3221225472, 3.gigabyte
+    assert_equal 3298534883328, 3.terabytes
+    assert_equal 3298534883328, 3.terabyte
+    assert_equal 3377699720527872, 3.petabytes
+    assert_equal 3377699720527872, 3.petabyte
+    assert_equal 3458764513820540928, 3.exabytes
+    assert_equal 3458764513820540928, 3.exabyte
+  end
 end