[Tests] Refactors initialization of the client for YAML test runner

Author: picandocodigo

elasticsearch-api/spec/yaml-test-runner/run.rb

@@ -49,18 +49,13 @@
   transport_options = {}
 end
 
-CLIENT = if ENV['ES_API_KEY']
-           Elasticsearch::Client.new(host: host, api_key: ENV['ES_API_KEY'], transport_options: transport_options)
-         else
-           Elasticsearch::Client.new(host: host, transport_options: transport_options)
-         end
+options = { host: host, transport_options: transport_options, compression: true }
+options.merge!({ api_key: ENV['ES_API_KEY'] }) if ENV['ES_API_KEY']
+CLIENT = Elasticsearch::Client.new(options)
 
 tests_path = File.expand_path('./tmp', __dir__)
-ruby_version = if defined? JRUBY_VERSION
-                 "jruby-#{JRUBY_VERSION}"
-               else
-                 "ruby-#{RUBY_VERSION}"
-               end
+ruby_version = defined?(JRUBY_VERSION) ? "jruby-#{JRUBY_VERSION}" : "ruby-#{RUBY_VERSION}"
+
 log_filename = "es-#{Elasticsearch::VERSION}-transport-#{ENV['TRANSPORT_VERSION']}-#{ruby_version}.log"
 logfile = File.expand_path "../../tmp/#{log_filename}", __dir__
 logger = Logger.new(File.open(logfile, 'w'))