1 files changed, 20 insertions, 0 deletions
diff --git a/railties/test/commands/server_test.rb b/railties/test/commands/server_test.rb
index 4a3ea82e3d..6a75207ebb 100644
--- a/railties/test/commands/server_test.rb
+++ b/railties/test/commands/server_test.rb
@@ -23,4 +23,24 @@ class Rails::ServerTest < ActiveSupport::TestCase
     assert_nil options[:environment]
     assert_equal 'thin', options[:server]
   end
+
+  def test_environment_with_rails_env
+    rails = ENV['RAILS_ENV']
+    ENV['RAILS_ENV'] = 'production'
+    server = Rails::Server.new
+    assert_equal 'production', server.options[:environment]
+  ensure
+    ENV['RAILS_ENV'] = rails
+  end
+
+  def test_environment_with_rack_env
+    rack, rails = ENV['RACK_ENV'], ENV['RAILS_ENV']
+    ENV['RAILS_ENV'] = nil
+    ENV['RACK_ENV'] = 'production'
+    server = Rails::Server.new
+    assert_equal 'production', server.options[:environment]
+  ensure
+    ENV['RACK_ENV'] = rack
+    ENV['RAILS_ENV'] = rails
+  end
 end