Question

首先，我是编程的新手，这是问题

这是规范

@IBAction func Vib(_ sender: UIButton) {
    let generator = UIImpactFeedbackGenerator(style: .light)
    generator.impactOccurred()
}

这是我的回答

require 'minitest/autorun'
require_relative '../pet_shop'

class TestPetShop < Minitest::Test
  def setup
    @customers = [{
      name: "Craig",
      pets: [],
      cash: 1000
    }, {
      name: "Zsolt",
      pets: [],
      cash: 50
    }]

    @new_pet = {
      name: "Bors the Younger",
      pet_type: :cat,
      breed: "Cornish Rex",
      price: 100
    }

    @pet_shop = {
      pets: [{
        name: "Sir Percy",
        pet_type: :cat,
        breed: "British Shorthair",
        price: 500
      }, {
        name: "King Bagdemagus",
        pet_type: :cat,
        breed: "British Shorthair",
        price: 500
      }, {
        name: "Sir Lancelot",
        pet_type: :dog,
        breed: "Pomsky",
        price: 1000,
      }, {
        name: "Arthur",
        pet_type: :dog,
        breed: "Husky",
        price: 900,
      }, {
        name: "Tristan",
        pet_type: :dog,
        breed: "Basset Hound",
        price: 800,
      }, {
        name: "Merlin",
        pet_type: :cat,
        breed: "Egyptian Mau",
        price: 1500,
      }],
      admin: {
        total_cash: 1000,
        pets_sold: 0,
      },
      name: "Camelot of Pets"
    }
  end

  def test_find_pet_by_name__returns_pet
    pet = find_pet_by_name(@pet_shop, "Arthur")
    assert_equal("Arthur", pet[:name])
  end
end

保持错误的参数数量错误请记住我显然不知道我在做什么，因为我是新的编程。

Answer 1

您在此处调用find_pet_by_name(shop)方法：

pet = find_pet_by_name(@pet_shop, "Arthur")

正如评论者提到的那样，在调用方法时，您传递了2个参数：@pet_shop和"Arthur"。但是你的方法定义只允许传入1个参数：shop。所以你的方法调用应该是：

pet = find_pet_by_name(@pet_shop)

没有必要传递“Arthur”，因为该方法不需要（或允许）该信息。因此，您获得的“错误的参数数量”错误。

如何从散列Ruby TDD数组中返回一个名称

1 个答案: