Question

以下是我在RSPEC的测试。它失败了，我无法弄清楚为什么！我试图让它用自行车填满面包车的容量，但将所有其他自行车留在车站。但是它正在删除所有自行车，除了目前每个自行车中的一个。

let(:van) { Van.new }
let(:bike) { double :bike, broken?: false }
let(:broken_bike) { double :broken_bike, broken?: true }
let(:station) { double :station }

it 'can be filled with broken bikes' do
  station = double :station, { release_x_broken_bikes: broken_bike }
  expect(station).to receive(release_x_broken_bikes: broken_bike)
  van.fill_with_broken_bikes_from station
  expect(van.bike_count).to eq > 2
end

van.rb中的相关代码：

def initialize bikes = [], capacity = 10
    @bikes = bikes
    @capacity = capacity
end 

def bike_count 
    @bikes.count
end

def fill_with_broken_bikes_from station
    @bikes = station.release_x_broken_bikes(slots_available)
end

def slots_available
    @capacity - bike_count
end

station.rb中的代码：

def broken_bikes
    @bikes.select { |bike| bike.broken? }
end

def release_broken_bike
    @bikes.delete(broken_bikes.first)
end

def release_x_broken_bikes(x)
    broken_bikes[0,x].map{ release_broken_bike}
end

Answer 1

在您的规范中：

expect(station).to receive(release_x_broken_bikes: broken_bike)

您告诉电台预计会收到release_x_broken_bikes，其参数为broken_bike？看看这个方法，它需要一个数字。 broken_bike对我来说似乎是双重的。

您的错误正好告诉您：

1）Van可以用破碎的自行车填充失败/错误：van.fill_with_broken_bikes_from station Double：station收到意外消息：release_x_broken_bikes with（10）＃。/ lib / van.rb：29：in fill_with_broken_bikes_from'＃。/ specl /van_spec.rb:51:in块（2级）'完成0.00995秒12个例子，1个失败

它收到release_x_broken_bikes 10的电话，这似乎是你真正想要的。告诉它期待，你可以得到你的下一个问题（如果有的话）。

RSPEC测试失败。有任何想法吗？

1 个答案: