如何使用 Shoulda 匹配器来测试日期验证

Question

我验证一个日期字段如下：

验证：return_date，包含：{in:(Date.today+1.day..Date.today+4.weeks)}

我使用 Rspec 语法对其进行测试，如下所示：

it "should only accept return date that is later than the current date" do
    quotation_request = FactoryGirl.build(:quotation_request, return_date: Date.today)
    expect(quotation_request.valid?).to be_falsy
end

报价请求模型中的验证：

validates :return_date, inclusion: {in:(Date.today+1.day..Date.today+4.weeks)

这行得通。我想知道是否有一种方法可以使用 Shoulda 匹配器来测试它，如果可以，使用哪一个以及如何测试？

Answer 1

首先，您应该使用 proc 来评估日期

validates :return_date, inclusion: { in: ->(model) { (Date.today+1.day)..(Date.today+4.weeks) } }

然后你可以对给定的字段进行调整，看看它什么时候是假的，什么时候是真的

# Set the expectation that the factory is setup correctly
expect(quotation_request).to be_valid

# Then check that values "just" out of range make it invalid
quotation_request.return_date = Date.today
expect(quotation_request).not_to be_valid

quotation_request.return_date = Date.today+4.weeks+1.day
expect(quotation_request).not_to be_valid