升级应该匹配器后uniqueness_of失败

Question

我刚刚升级了我的 Rails 项目以使用 Shoulda Matchers 3.0

但是，验证 title 属性唯一性的模型测试现在失败了：

app/models/product.rb

it { is_expected.to validate_uniqueness_of(:title) }

spec/models/product_spec.rb

it { is_expected.to validate_uniqueness_of(:title) }

测试失败的错误信息是：

Product should validate that :title is case-sensitively unique
 Failure/Error: it { is_expected.to validate_uniqueness_of(:title) }
   Product did not properly validate that :title is case-sensitively
   unique.
     The record you provided could not be created, as it failed with the
     following validation errors:

     * title: ["can't be blank"]
     * description: ["can't be blank"]
 # ./spec/models/product_spec.rb:6:in `block (2 levels) in <top (required)>'

有人遇到过这个问题吗？

感谢您的帮助，

安东尼

Answer 1

有一个已知问题 - https://github.com/thoughtbot/shoulda-matchers/issues/880 - 显然已在 master 中修复。

在等待修复期间，您可以暂时锁定到 3.0.1 版本，这应该可以工作。

唯一性匹配器在 3.0.x 中确实更改为默认区分大小写以匹配默认的 rails 验证器，因此如果您将 rails 验证设置为不区分大小写，则必须将匹配器调用更新为

is_expected.to validate_uniqueness_of(:whatever_field).case_insensitive