1 files changed, 7 insertions, 0 deletions
diff --git a/railties/test/commands/server_test.rb b/railties/test/commands/server_test.rb
index 7a063aeddf..3be4a74f74 100644
--- a/railties/test/commands/server_test.rb
+++ b/railties/test/commands/server_test.rb
@@ -44,6 +44,13 @@ class Rails::ServerTest < ActiveSupport::TestCase
     end
   end
 
+  def test_environment_with_port
+    switch_env "PORT", "1234" do
+      server = Rails::Server.new
+      assert_equal 1234, server.options[:Port]
+    end
+  end
+
   def test_caching_without_option
     args = []
     options = Rails::Server::Options.new.parse!(args)