密碼Ruby on Rails教程M. Hartl

Question

我剛開始使用rails，並決定遵循M.Hartl的「Ruby on Rails Tutorial」。看起來像一個很好的介紹。

我碰到一個失敗的測試這讓我瘋狂。 我正在軌3.1.1，與rspec的2.7.0

我曾嘗試修改情況，並測試了「has_password」方法的工作。

失敗的測試：

 
1) User password encryption authenticate method should return the user on email/password match 
Failure/Error: matching_user.should == @user 
expected: # 
     got: nil (using ==) 
# ./spec/models/user_spec.rb:149:in `block (4 levels) in ' 

RSpec的測試：

describe User do 

before(:each) do 
@attr = {:name => 'testing', 
     :email =>'testing@example.com', 
     :password => "testtest", 
     :password_confirmation => "testtest"} 
end 

... 

describe "password encryption" do 
    before(:each) do 
    @user = User.create!(@attr) 
    end 

... 

describe "authenticate method" do 

    it "should exist" do 
    User.should respond_to(:authenticate) 
    end 

    it "should return nil on email/password mismatch" do 
    User.authenticate(@attr[:email], "wrongpass").should be_nil 
    end 

    it "should return nil for an email address with no user" do 
    User.authenticate("bar@foo.com", @attr[:password]).should be_nil 
    end 

    it "should return the user on email/password match" do 
    matching_user = User.authenticate(@attr[:email], @attr[:password]) 
    matching_user.should == @user 
    end  
end 

在用戶模式：

... 

def has_password?(submitted_password) 
    encrypt_password == encrypt(submitted_password) 
end 

def self.authenticate(email, submitted_password) 
    user = find_by_email(email) #self.where("email = ?", email) 
    return nil if user.nil? 
    return user if user.has_password?(submitted_password) 
end 

private 

def encrypt_password 
    self.salt = make_salt if new_record? 
    self.encrypted_password = encrypt(password) 
end 

我想不出我在做什麼錯在這裏。

Answer 1

在發生故障的規格必須

matching_user.should == @user 

但@user因此它設置爲nil不被任何定義。

編輯：

嘗試添加以下puts到失敗規範，看看有什麼結果，你在你的規格輸出得到它運行後。

it "should return the user on email/password match" do 
    matching_user = User.authenticate(@attr[:email], @attr[:password]) 
    puts matching_user # add this 
    puts @user   # and also this 
    matching_user.should == @user 
end