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POArgumentError in Chapter 7 of "Rails Tutorial" by Michael Hartl
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  1. POArgumentError in Chapter 7 of "Rails Tutorial" by Michael Hartl
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    copied!<p>everyone. I've got the following problem: After implementing has_password? in section 7.2.3 RSpec displays the following error for "should create a new instance given valid attributes" test for example</p> <blockquote> <p>1) User should create a new instance given valid attributes Failure/Error: User.create!(@attr) ArgumentError: wrong number of arguments (1 for 0) # ./app/models/user.rb:42:in <code>secure_hash' # ./app/models/user.rb:39:in</code>make_salt' # ./app/models/user.rb:30:in <code>encrypt_password' # ./spec/models/user_spec.rb:14:in</code>block (2 levels) in '</p> <p>Finished in 1.47 seconds 1 example, 1 failure &lt;-- Slave(1) run done!</p> </blockquote> <p>I don't understand, what exactly causes the problem. Here is my user.rb code:</p> <pre><code> require 'digest' class User &lt; ActiveRecord::Base attr_accessor :password attr_accessible :name, :email, :password, :password_confirmation email_regex = /\A[\w+\-.]+@[a-z\d\-.]+\.[a-z]+\z/i validates :name, :presence =&gt; true, :length =&gt; { :maximum =&gt; 50 } validates :email, :presence =&gt; true, :format =&gt; { :with =&gt; email_regex }, :uniqueness =&gt; { :case_sensitive =&gt; false } # Automatically create the virtual attribute "password_confirmation" validates :password, :presence =&gt; true, :confirmation =&gt; true, :length =&gt; { :within =&gt; 6..40 } before_save :encrypt_password # Return 'true' if the user's password matches the submitted password def has_password?(submitted_password) encrypted_password == encrypt(submitted_password) end private def encrypt_password self.salt = make_salt if new_record? self.encrypted_password = encrypt(password) end def encrypt(string) secure_hash("#{salt}--#{string}") end def make_salt secure_hash("#{Time.now.utc}--#{password}") end def secure_hash Digest::SHA2.hexdigest(string) end end </code></pre> <p>What can it be? Thank you in advance!</p>
 

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