为什么我的模拟不能在我最小的测试运行中使用?

时间:2017-09-29 19:18:18

标签: mocking ruby-on-rails-5 minitest stub

我正在尝试使用Rails 5编写测试并使用minitest这是我的测试代码......

@client = Coinbase::Wallet::Client.new(api_key: ENV['COINBASE_KEY'], api_secret: ENV['COINBASE_SECRET'])
sell_price = 4000
assert sell_price > last_buy_price * (1 + MoneyMakerThreshhold.find_buy.pct_change)
@client.stub :sell_price, "USD" do
  {"base"=>"BTC", "currency"=>"USD", "amount"=>"#{sell_price}"}
end

svc = CryptoCurrencyService.new
svc.sell(last_transaction)

但是当它在下面特写时打印出来的不是我嘲笑的售价“4000”,而是客户退回的实际售价......

  def sell(last_transaction)
    client = Coinbase::Wallet::Client.new(api_key: ENV['COINBASE_KEY'], api_secret: ENV['COINBASE_SECRET'])
    sell_price = client.sell_price(currency: 'USD').amount
    puts "buy: #{last_transaction.btc_price_in_usd} sellprice: #{sell_price} last:#{last_transaction.btc_price_in_usd}"

如何让我的模拟成功?

1 个答案:

答案 0 :(得分:0)

对于块的持续时间,

Object#stub存根方法值,如文档所述

  

添加临时存根方法,替换块的持续时间。如果val_or_callable响应#call,则返回调用它的结果,否则返回原样值。在块的末尾清理存根。

回答你原来的问题:

client.stub :sell_price, {"base"=>"BTC", "currency"=>"USD", "amount"=>"#{sell_price}"} do
  svc = CryptoCurrencyService.new
  svc.sell(last_transaction)  
end