wrong number of arguments ruby rspec

Question

I'm trying to write unit tests for my code using rspec. I keep getting a "wrong number of arguments" error:

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

And here are my tests:

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

...

When I run rspec I get:

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)>'

...

What am I missing?

EDIT

Sergio helped thanks...however

Sergio's answer worked...although I still have a further question:

Given the Class:

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

and spec...

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

...

The tests pass without the same error...(This works fine: Team.new("random name"))

Any explanation?

you mean like, MyClass.new("company","blah","blah","blah","blah") ?? — fatu
– fatu, Commented Sep 21, 2013 at 22:55
I edited my question...can you explain why I needed to add multiple arguments? — fatu
– fatu, Commented Sep 21, 2013 at 23:07
-1 for changing the question after posting it instead of posting a new question for the additional question you've had. That's considered rude here. — Benjamin Gruenbaum
– Benjamin Gruenbaum, Commented Sep 22, 2013 at 4:47

Arup Rakshit · Accepted Answer · 2013-09-22 20:36:41Z

3

Here is the error MyClass.new("environment"). As you have written def initialize(env, company, size, role, number_of_hosts, visability). So you should pass 6 parameters when you are calling MyClass#new method. But in practice you pass only one which is "environment". Thus you got the legitimate error - wrong number of arguments (1 for 6).

edited Sep 22, 2013 at 20:36

answered Sep 21, 2013 at 22:54

Arup Rakshit

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11 Comments

Benjamin Gruenbaum Over a year ago

Yeah, that's what rspec said... mind explaining why he got the error (hint, there is a comment that already says that)

Arup Rakshit Over a year ago

@BenjaminGruenbaum Comment is not an answer,, its a hint.. right? I think my answer is appropriate for this post.. But don't know why so many down-votes..

Tony Hopkinson Over a year ago

Hmmm can't cancel the down vote yet, all it said when I read it was the first sentence. :(

Benjamin Gruenbaum Over a year ago

@ArupRakshit I receded my down vote as soon as you edited your answer to include information about the problem over the message OP got.

Sergio Tulentsev Over a year ago

@ArupRakshit: On the other hand, you shouldn't be posting half-baked (even less than so) answers with typos just to claim first answer. Maybe that explains some downvotes. I like to be first answerer too, but I strive to post usable answers in revision 0.

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