1

我正在尝试使用 rspec 为我的代码编写单元测试。我不断收到“错误数量的参数”错误:

class MyClass
  attr_accessor :env, :company,:size, :role, :number_of_hosts,:visability

  def initialize(env, company, size, role, number_of_hosts, visability)
    @env, @company, @size, @role, @number_of_hosts, @visability =  env, company, size, role, number_of_hosts, visability
  end




end

这是我的测试:

require_relative "../lib/MyClass.rb"

 describe MyClass do
    it "has an environment" do
        MyClass.new("environment").env.should respond_to :env
    end

    it "has a company" do
        MyClass.new("company").company.should respond_to :company
    end

...

当我运行 rspec 我得到:

1) MyClass has an environment
     Failure/Error: MyClass.new("environment").env.should respond_to :env
     ArgumentError:
       wrong number of arguments (1 for 6)
     # ./lib/MyClass.rb:4:in `initialize'
     # ./spec/MyClass_spec.rb:5:in `new'
     # ./spec/MyClass_spec.rb:5:in `block (2 levels) in <top (required)>'

...

我错过了什么?

编辑

塞尔吉奥帮助谢谢......但是

塞尔吉奥的回答奏效了……尽管我还有一个问题:

给定班级:

class Team
    attr_accessor :name, :players

    def initialize(name, players = [])
        raise Exception unless players.is_a? Array

        @name = name
        raise Exception if @name && has_bad_name

        @players = players
    end

    def has_bad_name
        list_of_words = %w{crappy bad lousy}
        list_of_words - @name.downcase.split(" ") != list_of_words
    end

    def favored?
        @players.include? "George Clooney"
    end

end

和规格...

require_relative "../lib/team.rb"

describe Team do
    it "has a name" do
        Team.new("random name").should respond_to :name
    end

    it "has a list of players" do
        Team.new("random name").players.should be_kind_of Array
    end

...

测试通过没有相同的错误......(这工作正常:Team.new(“随机名称”))

有什么解释吗?

4

1 回答 1

3

这是错误MyClass.new("environment")。正如你所写def initialize(env, company, size, role, number_of_hosts, visability)的。所以你应该在调用方法时传递6参数。MyClass#new但在实践中,你只通过了一个,即"environment". 因此,您得到了合法的错误 -参数数量错误 (1 for 6)

于 2013-09-21T22:54:57.397 回答