Add an example for Android and Sauce Labs

sample-code/examples/ruby/android_on_sauce.rb

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+# This example automates a test of the Android example notepad app.
+#
+# To run this example, make sure you've run:
+#   $ bundle install
+#
+# And set the environment variables:
+#   SAUCE_USERNAME = your-sauce-username
+#   SAUCE_ACCESS_KEY = your-sauce-key
+#
+# Then just:
+#   $ rspec android_on_sauce.rb 
+#
+# Of note compared to the iOS example, here we're giving the package and
+# activity, no OS and an empty browserName
+#
+# Of note compared to the non-sauce examples, you need to host your app
+# somewhere Sauce Labs' cloud can fetch it for your test.
+
+require "selenium-webdriver"
+require "rspec"
+
+def capabilities
+  {
+    "device" => "Android",
+    "browserName" => "",
+    "version" => "4.2",
+    "app" => "http://appium.s3.amazonaws.com/NotesList.apk",
+    "app-package" => "com.example.android.notepad",
+    "app-activity" => "NotesList"
+  }
+end
+
+def url_with_credentials
+  un = ENV["SAUCE_USERNAME"]
+  pw = ENV["SAUCE_ACCESS_KEY"]
+  "http://#{un}:#{pw}@ondemand.saucelabs.com:80/wd/hub"
+end
+
+describe "Notepad" do
+  before :all do
+    @driver ||= Selenium::WebDriver.for(
+      :remote, 
+      :desired_capabilities => capabilities,
+      :url => url_with_credentials
+    )
+  end
+
+  after :all do
+    @driver.quit
+  end
+
+  it "can create and save new notes" do
+    new_button = @driver.find_element(:name, "New note")
+    new_button.click
+
+    text_field = @driver.find_element(:tag_name, "textfield")
+    text_field.send_keys "This is a new note, from Ruby"
+
+    save_button = @driver.find_element(:name, "Save")
+    save_button.click
+
+    notes = @driver.find_elements(:tag_name, "text")
+    puts "The number of notes is: #{notes.length}"
+    notes[2].text.should eq "This is a new note, from Ruby"
+  end
+end