1 files changed, 17 insertions, 2 deletions
diff --git a/test/rubygems/test_gem_commands_environment_command.rb b/test/rubygems/test_gem_commands_environment_command.rb
index 6d694c3372..809e05327b 100644
--- a/test/rubygems/test_gem_commands_environment_command.rb
+++ b/test/rubygems/test_gem_commands_environment_command.rb
@@ -1,4 +1,10 @@
-require_relative 'gemutilities'
+######################################################################
+# This file is imported from the rubygems project.
+# DO NOT make modifications in this repo. They _will_ be reverted!
+# File a patch instead and assign it to Ryan Davis or Eric Hodel.
+######################################################################
+
+require "test/rubygems/gemutilities"
 require 'rubygems/commands/environment_command'
 
 class TestGemCommandsEnvironmentCommand < RubyGemTestCase
@@ -131,5 +137,14 @@ class TestGemCommandsEnvironmentCommand < RubyGemTestCase
     assert_equal '', @ui.error
   end
 
-end
+  def test_execute_platform
+    @cmd.send :handle_options, %w[platform]
 
+    use_ui @ui do
+      @cmd.execute
+    end
+
+    assert_equal "#{Gem.platforms.join File::PATH_SEPARATOR}\n", @ui.output
+    assert_equal '', @ui.error
+  end
+end