Ruby on rails FactoryGirl创建方法后未保存
我有一个简单的情景设置,以便学习FactoryGirl测试。银行有许多交易。每次创建交易时,应从银行总额中减去交易金额 代码如下:Ruby on rails FactoryGirl创建方法后未保存,ruby-on-rails,ruby-on-rails-3,testing,rspec,factory-bot,Ruby On Rails,Ruby On Rails 3,Testing,Rspec,Factory Bot,我有一个简单的情景设置,以便学习FactoryGirl测试。银行有许多交易。每次创建交易时,应从银行总额中减去交易金额 代码如下: # Bank.rb - Has many transactions class Bank < ActiveRecord::Base has_many :transactions end # Transaction.rb - Belongs to a bank and should decrement the bank's total when crea
# Bank.rb - Has many transactions
class Bank < ActiveRecord::Base
has_many :transactions
end
# Transaction.rb - Belongs to a bank and should decrement the bank's total when created.
class Transaction < ActiveRecord::Base
belongs_to :bank
after_create :decrement_bank_amount
def decrement_bank_amount
bank.decrement!(:amount, amount) if bank
end
end
# factories.rb - Create default factories for testing. This is FactoryGirl 4 syntax
FactoryGirl.define do
factory :bank do
sequence(:name) { |n| 'Bank ' + n.to_s }
end
factory :transaction do
sequence(:title) { |n| 'Payment ' + n.to_s }
bank
end
end
# Transaction_spec.rb - Creates a bank and a transaction.
require 'spec_helper'
describe Transaction do
describe ".create" do
context "when a bank is set" do
it "decreases the bank's amount" do
bank = FactoryGirl.create(:bank, :amount => 1000) do |b|
b.transactions.create(:amount => 250)
end
bank.amount.to_i.should eq 750
end
end
end
end
#Bank.rb-有许多交易
类Bank1000)do | b|
b、 事务处理。创建(:金额=>250)
结束
银行金额应等于750
结束
结束
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结束
测试不断失败,银行金额不断返回1000,而不是预期的750。我被难住了 此测试失败,因为从数据库中提取并存储了
bank
。after\u create
回调修改数据库中的记录,但是bank
中的对象看不到,因此不会更新
在检查金额之前,您需要对该对象调用reload
:
bank.reload
bank.amount.to_i.should == 750
哇,现在太明显了。非常感谢你!