appium.txt

[caps]
platformName  = "Android"
versionNumber = "1.12"
deviceName    = "F8132"
app           = "sample.apk"

[appium_lib]
wait  = 10

login_page.rb

module Pages
  class LoginPage < SitePrism::Page
    element :login_button, :id, 'com.daipresents.sample:id/login_button'

    def tap_login_button
      login_button.click
    end
  end
end

login_spec.rb

require_relative 'spec_helper'

describe 'Login' do
  context 'Error Case' do
    it 'can not login without id and password' do
      Pages::LoginPage.new
          .tap_login_button
         #.tap_xxxxx
         #.tap_yyyyy
         #.tap_zzzzz
    end
  end
end

spec_helper.rb

require 'rubygems'
require 'rspec'
require 'rspec/expectations'
require 'capybara/rspec'
require 'site_prism'
require 'appium_lib'
require 'appium_capybara'

Capybara.register_driver(:appium) do |app|
  opts = Appium.load_appium_txt file: File.join(Dir.pwd, 'appium.txt')
  Appium::Capybara::Driver.new app, opts
end

Capybara.default_driver = :appium

require 'login_page'

RSpec.configure do |config|
  config.after(:each) do |result|
    Capybara.current_session.driver.quit
  end
end