1 files changed, 18 insertions, 0 deletions
diff --git a/test/rubygems/test_deprecate.rb b/test/rubygems/test_deprecate.rb
index b92bd1c3da..f5cd83ee89 100644
--- a/test/rubygems/test_deprecate.rb
+++ b/test/rubygems/test_deprecate.rb
@@ -77,4 +77,22 @@ class TestDeprecate < Gem::TestCase
     assert_match(/on or after 2099-03-01/, err)
   end
 
+  def test_deprecate_command
+    require 'rubygems/command'
+    foo_command = Class.new(Gem::Command) do
+      extend Gem::Deprecate
+
+      deprecate_command(2099, 4)
+
+      def execute
+        puts "pew pew!"
+      end
+    end
+
+    Gem::Commands.send(:const_set, :FooCommand, foo_command)
+    assert Gem::Commands::FooCommand.new("foo").deprecated?
+  ensure
+    Gem::Commands.send(:remove_const, :FooCommand)
+  end
+
 end