Question

我正在为火车系统编写一个小程序。

我有乘客，长途汽车，火车和火车站（因此，每个都有一个规格测试）。

我对乘客班的测试是这样的：

let (:passenger) {Passenger.new}

  it "should not be touched in to a station when initialized" do
    expect(passenger.touchedin?).to be false
  end

  it "should be able to enter coach" do
    coach = Coach.new
    passenger.enter(coach)
    expect{coach.to receive(:enter)}
  end

  it "should be able to alight coach" do
    coach = Coach.new
    passenger.alight(coach)
    expect{coach.to receive(:alight)}
  end

  it "should be able to touch into station" do
    station = Station.new
    passenger.touchin(station)
    expect{station.to receive(:touchin)}
  end

  it "should be able to touch out of station" do
    station = Station.new
    passenger.touchout(station)
    expect{station.to receive(:touchout)}
  end
end

我的乘客班就像这样（目前：p）：

class Passenger

  def initialize
    @touchedin = false
  end

  def enter(coach)

  end

  def touchedin?
    @touchedin
  end

  def alight(coach)

  end

  def touchin(station)

  end

  def touchout(station)

  end
end

我不确定如何满足我的测试，如果我的测试首先是正确的。

非常感谢任何帮助！

Answer 1

你并没有真正说出你如何对教练和乘客之间的关系进行建模，但我能想到的一种方法可能如下。我只是为教练/乘客关系提供了足够的东西（所以没有任何关于触摸的内容，因为这涉及到电台） - 而且我使用最小的语法，但我认为你可以了解什么＆＃39;发生了。

class Coach
  def initialize
    @passengers = []
  end

  ...
end


class Passenger
  def initialize
    @touched_in = false
  end

  def alight(coach)
    coach.passengers << self.uid # or self, if you want the whole passenger object available
  end

  ...
end 


coach = Coach.new
assert_empty coach.passengers

joe = Passenger.new
refute_includes coach.passengers, joe.uid # or joe
joe.alight(coach)
assert_includes coach.passengers, joe.uid # or joe

我正在努力为我的Tube System程序编写代码和测试，使用Rspec和Ruby编写TDD

1 个答案: