Question

无论我的输入是什么，我的rspec测试都会失败。我正在运行测试以确保输入介于1-4之间它只在我输入3时才起作用？

require 'order'
describe Order do
  it 'gets dish input' do
    order = Order.new
    allow(order.input).to receive(:gets).and_return(:name)
  end

  it 'checks input' do
    order = Order.new
    expect(order.input).to eq (1..4)
  end 
end

调用order.rb

class Order
  def initialize
    input
  end

  def input
    puts 'please select the number of your dish'
    gets.chomp
  end

  def valid_range? input
    input.to_i.between?(1..4)
  end
end

谢谢

Answer 1

您可以将Order课程编写为：

class Order
  attr_reader :dish_number

  def initialize
    @dish_number = input.to_i
  end

  def valid_dish?
    dish_number.between?(1, 4)
  end

  private

  def input
    puts 'please select the number of your dish'
    gets.chomp
  end
end

其相应的规范应该是：

require_relative '../order.rb'

describe Order do
  it 'gets dish number as input' do
    allow_any_instance_of(Order).to receive(:input).and_return("1")
    order = Order.new
    expect(order.dish_number).to eq(1)
  end

  it 'checks valid dish' do
    allow_any_instance_of(Order).to receive(:input).and_return("1")
    order = Order.new
    expect(order).to be_valid_dish
  end 
end

结果是：

[arup@Ruby]$ rspec spec/order_spec.rb
..

Finished in 0.00946 seconds (files took 0.12904 seconds to load)
2 examples, 0 failures
[arup@Ruby]$

正如@myron所说，这是代码的DRY版本：

require_relative '../order.rb'

describe Order do
  def new_order(input)
    order = Order.new
    allow(order).to receive(:input).and_return(input)
    order
  end

  it 'gets dish number as input' do
    expect(new_order("1").dish_number).to eq(1)
  end

  it 'checks valid dish' do
    expect(new_order("1")).to be_valid_dish
  end 
end

检查输入的Rspec测试在1-4范围内工作，然后失败

1 个答案: