Codewars练习显示在我的系统上正常工作的代码的错误

Question

这是问题

更正代码，以便greet函数返回预期值 这是代码

class Person

  def initialize(name)
    @name = name
  end

  def greet(other_name)
   "Hi #{other_name}, my name is #{name}"
  end
end

这是我的解决方案

class Person
  attr_reader :name, :other_name
  def initialize(name)
    @name = name
  end

  def greet(other_name)
    puts " \"Hi #{other_name}, my name is #{@name}\" "
  end
end

object = Person.new("Joe")
object.greet("Kate")

提供以下错误

`expect': Expected: "Hi Kate, my name is Joe", instead got: nil (Test::Error) from `assert_equals' from `
'

Answer 1

puts是一种返回nil的方法，因此即使您看到正确的输出，测试也不会那样看。