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使用: 何时用Rspec测试铁路模型?
原标题:Use .new or .create! when testing Rails models with Rspec?

我在铁路3.1处有一个接触表。 我想最后是接受40个特性的名称,因此,我的模型一写道:<代码>:length =>{:maximum => 40 }。 然而,我的移民中有一个打字体产生了最后一个名称栏,其编号为:limit=> 30

我很想知道,为什么我的“光谱测试”没有发现这一点:

it "should allow last_name up to max length" do
  long_field = "a" * 40
  Contact.new(@attr.merge(:last_name => long_field)).should be_valid
end

then I realized that s only checking the model. If I use .create! instead, the test fails nicely:

it "should allow last_name up to max length" do
  long_field = "a" * 40
  Contact.create!(@attr.merge(:last_name => long_field)).should be_valid
end

因此,如果我总是使用<条码>。 何时测试我的模型? 还是太缓慢? 我怎么能确保我的模式和行定义不会发生冲突?

This also has me wondering if I should just leave strings as 255 in the database and only check the length in the model.

最佳回答

由于速度原因,你应尽可能使用。 为了让你的测试失败,你应当使用从容的证书。 关于间隔时间,理想的做法是,如果你感到过分透彻,那么你可以和模型.columns上签字,以证实你对每一栏均有确认。

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