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Testing Rails model validations

General Tech QA/Testing 2 years ago

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Posted on 16 Aug 2022, this text provides information on QA/Testing related to General Tech. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.

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manpreet Tuteehub forum best answer Best Answer 2 years ago

There's many examples of testing RoR model validations. Even keeping the test being DRY across multiple models. But isn't it testing Rails which is already tested?

@user = User.make
@user.name = nil

@user.should_not be_valid

Isn't it testing if Rails validations work?

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manpreet 2 years ago

The point is that you test that your model is using the validation. I agree with you, though, that your example tests">tests the validation itself, and the test is also somewhat ambiguous.

If you are using the shoulda gem, you can simply use should validate_presence_of(:name).

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