使用 RSpec 测试用户密码更新

编程问答 2022-06-01

问题描述

我有一个用 Roda + Sequel 堆栈构建的 API。我的 User 模型如下所示：

# frozen_string_literal: true

# {User} is model responsible for storing {User} authentication informations like email and password.
#
# @!attribute id
#   @return [UUID] ID of the {User} in UUID format.
#
# @!attribute email
#   @return [String] Email of the {User},it's stored in the PostgreSQL citext column.
#
# @!attribute password_hash
#   @return [String] {User} hashed password with bcrypt.
#
# @!attribute created_at
#   @return [DateTime] Time when {User} was created.
#
# @!attribute updated_at
#   @return [DateTime] Time when {User} was updated
class User < Sequel::Model
  # It returns instance BCrypt::Password based on value in password_hash column.
  #
  # @return [BCrypt::Password ] based on value in password_hash column.
  #
  # @example Get {User} password hash:
  #   User.new(password: 'test').password #=> "$2a$12$FktSw7HPYEUYSPBdmmsiXe26II6UV5gvyn2ECwOflTYHP94Hrm2mS"
  def password
    @password ||= BCrypt::Password.new(password_hash)
  end

  # It sets password_hash column with hashed user password.
  #
  # @return [String] user password hash.
  #
  # @example Set {User} password:
  #   User.new(password: 'test').password_hash #=> "$2a$12$FktSw7HPYEUYSPBdmmsiXe26II6UV5gvyn2ECwOflTYHP94Hrm2mS"
  def password=(new_password)
    @password = BCrypt::Password.create(new_password)

    self.password_hash = @password
  end
end

我有以下测试：

describe 'update user password' do
  let(:params) { { password: 'new-password' } }

  before do
    put '/api/v1/update_password',params

    user.reload
  end

  it 'returns 200 HTTP status' do
    expect(response.status).to eq 200
  end
   
  This one is failing.
  it 'updates user password' do
    expect(user.password == 'new-password').to eq true
  end
  
  # This one is passing.
  it 'updates user password' do
    expect(BCrypt::Password.new(user.password_hash).is_password?('new-password')).to eq true
  end
end

这个例子失败了：

  it 'updates user password' do
    expect(user.password == 'new-password').to eq true
  end

但这个正在通过：

 it 'updates user password' do
    expect(BCrypt::Password.new(user.password_hash).is_password?('new-password')).to eq true
  end

谁能向我解释为什么我的第一个例子失败了？

解决方法

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