[rb] don't default args to array

Author: lmtierney

rb/lib/selenium/webdriver/chrome/driver.rb

@@ -74,7 +74,7 @@ def create_capabilities(opts)
           caps = opts.delete(:desired_capabilities) { Remote::Capabilities.chrome }
           options = opts.delete(:options) { Options.new }
 
-          args = opts.delete(:args)|| opts.delete(:switches) || []
+          args = opts.delete(:args) || opts.delete(:switches)
           if args
             WebDriver.logger.deprecate ':args or :switches', 'Selenium::WebDriver::Chrome::Options#add_argument'
             raise ArgumentError, ':args must be an Array of Strings' unless args.is_a? Array

rb/spec/unit/selenium/webdriver/chrome/driver_spec.rb

@@ -40,6 +40,12 @@ module Chrome
           expect(caps[:chrome_options][:args]).to eq(%w[--foo=bar])
         end
 
+        it 'sets the args capability from switches' do
+          Driver.new(http_client: http, switches: %w[--foo=bar])
+
+          expect(caps[:chrome_options][:args]).to eq(%w[--foo=bar])
+        end
+
         it 'sets the proxy capabilitiy' do
           proxy = Proxy.new(http: 'localhost:1234')
           Driver.new(http_client: http, proxy: proxy)