Question

我正在使用Sinatra制作一个简单的摇滚，纸张，剪刀游戏，并使用rspec-capybara进行测试。游戏对抗随机化摇滚，纸张或剪刀的计算机对手。我正在为网页结果编写测试。我正在扼杀对手的反应，总是选择纸张让球员输球（因为他选择摇滚）

scenario "Player chooses rock, and the computer chooses paper." do
single_player_sign_in_and_play
click_button('rock')
allow(game).to receive_message_chain(:player2, :weapon) {:paper}
allow(game).to receive(:outcome).and_return("You lose!")
allow(game).to receive(:message).and_return("Your opponent chose #{game.player2.weapon}. #{game.outcome}")
expect(page).to have_content("Your opponent chose paper. You lose!")

端

我希望对手永远拥有：纸张作为武器，所以玩家输了：页面应该有内容：“你的对手选择了纸张。你输了！”

Answer 1

在调用click_button('rock')

之前，您应该存根调用

scenario "Player chooses rock, and the computer chooses paper." do
  allow(game).to receive_message_chain(:player2, :weapon) {:paper}
  allow(game).to receive(:outcome).and_return("You lose!")
  allow(game).to receive(:message).and_return("Your opponent chose paper. You lose!")
  single_player_sign_in_and_play
  click_button('rock')
  expect(page).to have_content(game.message)
end

我建议不要在期望中使用game.message，而是使用Your opponent chose paper. You lose!。您还可以考虑将存根移动到before块

Answer 2

双打不能传递给Capybara功能测试。双打只应用于单元测试！以下代码通过。

scenario "Player chooses rock, and the computer chooses paper." do
allow_any_instance_of(Opponent).to receive(:weapon).and_return(:paper)
single_player_sign_in_and_play
click_button('rock')
save_and_open_page
expect(page).to have_content("Your opponent chose paper. You lose!")

端

去除水豚特征测试的随机性

2 个答案: