fold last of the virtual into register

test/register/test_padding.rb

@@ -0,0 +1,27 @@
+require_relative "../helper"
+
+class Padded
+  include Padding
+end
+
+class TestPadding < MiniTest::Test
+
+  def setup
+    @pad = Padded.new
+  end
+  def test_small
+    [6,20,23,24].each do |p|
+      assert_equal 32 , @pad.padded(p) , "Expecting 32 for #{p}"
+    end
+  end
+  def test_medium
+    [26,40,53,56].each do |p|
+      assert_equal 64 , @pad.padded(p) , "Expecting 64 for #{p}"
+    end
+  end
+  def test_large
+    [58,88].each do |p|
+      assert_equal 96 , @pad.padded(p) , "Expecting 96 for #{p}"
+    end
+  end
+end