diff --git a/sample/testunit/adder.rb b/sample/testunit/adder.rb
deleted file mode 100644
index aa5c88cc7b..0000000000
--- a/sample/testunit/adder.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-# Author:: Nathaniel Talbott.
-# Copyright:: Copyright (c) 2000-2002 Nathaniel Talbott. All rights reserved.
-# License:: Ruby license.
-
-class Adder
-  def initialize(number)
-    @number = number
-  end
-  def add(number)
-    return @number + number
-  end
-end
-
diff --git a/sample/testunit/subtracter.rb b/sample/testunit/subtracter.rb
deleted file mode 100644
index 2c08247805..0000000000
--- a/sample/testunit/subtracter.rb
+++ /dev/null
@@ -1,12 +0,0 @@
-# Author:: Nathaniel Talbott.
-# Copyright:: Copyright (c) 2000-2002 Nathaniel Talbott. All rights reserved.
-# License:: Ruby license.
-
-class Subtracter
-  def initialize(number)
-    @number = number
-  end
-  def subtract(number)
-    return @number - number
-  end
-end
diff --git a/sample/testunit/tc_adder.rb b/sample/testunit/tc_adder.rb
deleted file mode 100644
index 8453beb20a..0000000000
--- a/sample/testunit/tc_adder.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-# Author:: Nathaniel Talbott.
-# Copyright:: Copyright (c) 2000-2002 Nathaniel Talbott. All rights reserved.
-# License:: Ruby license.
-
-require 'test/unit'
-require 'adder'
-
-class TC_Adder < Test::Unit::TestCase
-  def setup
-    @adder = Adder.new(5)
-  end
-  def test_add
-    assert_equal(7, @adder.add(2), "Should have added correctly")
-  end
-  def teardown
-    @adder = nil
-  end
-end
diff --git a/sample/testunit/tc_subtracter.rb b/sample/testunit/tc_subtracter.rb
deleted file mode 100644
index d2c8313350..0000000000
--- a/sample/testunit/tc_subtracter.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-# Author:: Nathaniel Talbott.
-# Copyright:: Copyright (c) 2000-2002 Nathaniel Talbott. All rights reserved.
-# License:: Ruby license.
-
-require 'test/unit'
-require 'subtracter'
-
-class TC_Subtracter < Test::Unit::TestCase
-  def setup
-    @subtracter = Subtracter.new(5)
-  end
-  def test_subtract
-    assert_equal(3, @subtracter.subtract(2), "Should have subtracted correctly")
-  end
-  def teardown
-    @subtracter = nil
-  end
-end
diff --git a/sample/testunit/ts_examples.rb b/sample/testunit/ts_examples.rb
deleted file mode 100644
index 3d24dd6522..0000000000
--- a/sample/testunit/ts_examples.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-# Author:: Nathaniel Talbott.
-# Copyright:: Copyright (c) 2000-2002 Nathaniel Talbott. All rights reserved.
-# License:: Ruby license.
-
-require 'test/unit'
-require 'tc_adder'
-require 'tc_subtracter'