On Tuesday, December 9, 2014 8:14:34 AM UTC-8, Roelof Wobben wrote:
>
> Hello,
>
> I have this model :
>
> class Product < ActiveRecord::Base
> validates :title, :description, :image_url, presence: true
> validates :price, numericality: {greater_than_or_equal_to: 0.01}
> validates :title, uniqueness: true
> validates :image_url, allow_blank: true,
> format: { with: %r{\.(gif|jpg|png)\Z}i,
> message: 'must be a URL for GIF, JPG or PNG image.'
> }
> end
>
> So I have made this test
>
> require 'spec_helper'
>
> describe Product do
>
> it "is valid with a productname, description,price and a
> image_url" do
> product = Product.new(
> title = "Book 1" ,
> description = "This is the first book" ,
> price = "1.00")
> expect(product).to be_valid
> end
> end
>
> But as soon as I do rspec I see this output:
>
>
> MiniTest::Unit::TestCase is now Minitest::Test. From
> /home/codio/.rbenv/versions/2.1.5/lib/ruby/2.1.0/test/unit/testcase.rb:8:in
> `<module:Unit>'
>
>
>
>
>
> Product
>
>
>
> is valid with a productname, description,price and a image_url (FAILED - 1)
>
>
>
>
>
>
>
> Failures:
>
>
>
>
>
>
>
> 1) Product is valid with a productname, description,price and a image_url
>
>
> Failure/Error: product = Product.new(
>
>
> ArgumentError
> :
>
> wrong number of arguments (3 for 0..2)
>
>
>
> # ./spec/model/product_spec.rb:6:in `block (2 levels) in <top
> (required)>'
>
>
>
> Where did i took the wrong turn.
>
> Roelof
>
Change this:
Product.new(
title = "Book 1" ,
description = "This is the first book" ,
price = "1.00")
to:
Product.new(
title: "Book 1" ,
description: "This is the first book" ,
price: "1.00")
In the first case, you are passing 3 positional arguments, and assigning
them to local variables `title`, `description` and `price`. In the second,
you are passing a single positional argument, which is a hash containing
`:title`, `:description` and `:price`. ActiveRecord only supports the
latter.
HTH,
Myron
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