[rb] add integration tests for Server class

rb/lib/selenium/server.rb

@@ -166,7 +166,7 @@ def download_server(uri, destination)
     # :standalone, #hub, #node
     #
 
-    attr_accessor :role, :port, :timeout, :background, :log
+    attr_accessor :role, :host, :port, :timeout, :background, :log
 
     #
     # @param [String] jar Path to the server jar.

rb/spec/integration/selenium/server_spec.rb

@@ -0,0 +1,71 @@
+# frozen_string_literal: true
+
+# Licensed to the Software Freedom Conservancy (SFC) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The SFC licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+require_relative 'webdriver/spec_helper'
+require 'selenium/server'
+
+module Selenium
+  describe Server do
+    after do
+      File.delete(@location) if @location && File.exist?(@location)
+    end
+
+    it 'downloads latest version' do
+      @location = described_class.download
+
+      expect(File.exist?(@location)).to be true
+      expect(@location).to eq("selenium-server-#{current_version}.jar")
+    end
+
+    it 'downloads specified version' do
+        @location = described_class.download('4.9.0')
+
+        expect(File.exist?(@location)).to be true
+        expect(@location).to eq('selenium-server-4.9.0.jar')
+      end
+
+    it 'starts and stops server' do
+      @location = described_class.download
+      @server = described_class.new(@location, background: true)
+      @server.start
+      status = server_status("http://#{@server.host}:#{@server.port}")
+      expect(status.code).to eq 200
+
+      @server.stop
+      expect {
+        server_status("http://#{@server.host}:#{@server.port}")
+      }.to raise_error(Errno::ECONNREFUSED)
+    ensure
+      @server&.stop
+    end
+
+    def server_status(url)
+      client = WebDriver::Remote::Http::Default.new
+      client.server_url = URI.parse(url)
+      client.send(:request, :get, URI.parse("#{url}/status"), {}, nil)
+    end
+
+    # Ruby Selenium is tagged one version ahead of release to support nightly gem
+    def current_version
+      selenium_version = Gem::Version.new(Selenium::WebDriver::VERSION).segments
+      selenium_version[1] = selenium_version[1] - 1
+      selenium_version.join('.')
+    end
+  end
+end