# spec/models/user/authentication.rb

require 'spec_helper'

describe User::Authentication do
  subject { User.new }

  describe ".authenticate" do
    it "tries to find the user" do
      User.should_receive(:find_by_username_or_email)
      User.authenticate('blah@blah.com', 'blahblah')
    end

    it "checks if the password is correct" do
      user = double(:user)
      User.stub(:find_by_username_or_email).and_return user
      user.should_receive(:correct_password?)
      User.authenticate('blah@blah.com', 'blahblah')
    end

    it "returns the found user if authenticated" do
      user = double(:user)
      User.stub(:find_by_username_or_email).and_return user
      user.stub(:correct_password?).and_return true
      User.authenticate('blah@blah.com', 'blahblah')
    end

    it "returns nil if the user doesn't exists" do
      User.stub(:find_by_username_or_email).and_return nil
      User.authenticate('blah@blah.com', 'blahblah')
    end

    it "returns nil if the password is incorrect" do
      user = double(:user)
      User.stub(:find_by_username_or_email).and_return user
      user.stub(:correct_password?).and_return false
      User.authenticate('blah@blah.com', 'blahblah')
    end
  end

  describe ".find_by_username_or_email" do
    before :all do
      @user = FactoryGirl.create :user, email: 'kramer@vulume.com', username: 'cosmo'
    end

    it "finds a user by username case insensitively" do
      User.find_by_username_or_email('cosmo').should be == @user
      User.find_by_username_or_email('COSMO').should be == @user
    end

    it "finds a user by email case insensitively" do
      User.find_by_username_or_email('kramer@vulume.com').should be == @user
      User.find_by_username_or_email('KRAMER@VULUME.com').should be == @user
    end

    it "is nil if nothing is found" do
      User.find_by_username_or_email('blahblahblah').should be_nil
    end

    it "does not query the database if a blank value is passed in" do
      method = :find_by_username_or_email
      User.should_not query_the_database.when_calling(method).with('')
      User.should_not query_the_database.when_calling(method).with(nil)
    end
  end

  describe "#correct_password" do
    it "is true if the passed in password matches the password digest" do
      subject.password = 'blah'
      subject.correct_password?('blah').should be_true
    end

    it "false if the password does not match" do
      subject.password = 'omfg'
      subject.correct_password?('notthesame').should be_false
    end
  end

  describe "#password=" do
    it "sets the password attribute" do
      subject.password = 'blah'
      subject.password.should be == 'blah'
    end

    it "sets the password digest" do
      subject.should_receive(:password_digest=)
      subject.password = 'blah'
    end

    it "does not set the password digest if the unencrypted password is blank" do
      subject.should_not_receive(:password_digest=)
      subject.password = ''
      subject.password = nil
    end
  end
end