1 files changed, 29 insertions, 0 deletions
diff --git a/spec/ruby/library/cgi/queryextension/server_port_spec.rb b/spec/ruby/library/cgi/queryextension/server_port_spec.rb
new file mode 100644
index 0000000000..1c88d3225d
--- /dev/null
+++ b/spec/ruby/library/cgi/queryextension/server_port_spec.rb
@@ -0,0 +1,29 @@
+require_relative '../../../spec_helper'
+
+ruby_version_is ""..."4.0" do
+  require 'cgi'
+
+  describe "CGI::QueryExtension#server_port" do
+    before :each do
+      ENV['REQUEST_METHOD'], @old_request_method = "GET", ENV['REQUEST_METHOD']
+      @cgi = CGI.new
+    end
+
+    after :each do
+      ENV['REQUEST_METHOD'] = @old_request_method
+    end
+
+    it "returns ENV['SERVER_PORT'] as Integer" do
+      old_value = ENV['SERVER_PORT']
+      begin
+        ENV['SERVER_PORT'] = nil
+        @cgi.server_port.should == nil
+
+        ENV['SERVER_PORT'] = "3000"
+        @cgi.server_port.should.eql?(3000)
+      ensure
+        ENV['SERVER_PORT'] = old_value
+      end
+    end
+  end
+end