Module ActiveModel::Lint::Tests
In: lib/active_model/lint.rb

Active Model Lint Tests

You can test whether an object is compliant with the Active Model API by including ActiveModel::Lint::Tests in your TestCase. It will include tests that tell you whether your object is fully compliant, or if not, which aspects of the API are not implemented.

These tests do not attempt to determine the semantic correctness of the returned values. For instance, you could implement valid? to always return true, and the tests would pass. It is up to you to ensure that the values are semantically meaningful.

Objects you pass in are expected to return a compliant object from a call to to_model. It is perfectly fine for to_model to return self.

Methods

Public Instance methods

Errors Testing

Returns an object that has :[] and :full_messages defined on it. See below for more details.

Returns an Array of Strings that are the errors for the attribute in question. If localization is used, the Strings should be localized for the current locale. If no error is present, this method should return an empty Array.

Returns an Array of all error messages for the object. Each message should contain information about the field, if applicable.

Naming

Model.model_name must return a string with some convenience methods as :human and :partial_path. Check ActiveModel::Naming for more information.

Responds to persisted?

Returns a boolean that specifies whether the object has been persisted yet. This is used when calculating the URL for an object. If the object is not persisted, a form for that object, for instance, will be POSTed to the collection. If it is persisted, a form for the object will be PUT to the URL for the object.

Responds to to_key

Returns an Enumerable of all (primary) key attributes or nil if model.persisted? is false

Responds to to_param

Returns a string representing the object‘s key suitable for use in URLs or nil if model.persisted? is false.

Implementers can decide to either raise an exception or provide a default in case the record uses a composite primary key. There are no tests for this behavior in lint because it doesn‘t make sense to force any of the possible implementation strategies on the implementer. However, if the resource is not persisted?, then to_param should always return nil.

Responds to valid?

Returns a boolean that specifies whether the object is in a valid or invalid state.

[Validate]