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ActiveModel::Lint::Tests

Public Instance Methods

test_errors_aref() click to toggle source

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.

    # File lib/active_model/lint.rb, line 91
91:       def test_errors_aref
92:         assert model.respond_to?(:errors), "The model should respond to errors"
93:         assert model.errors[:hello].is_a?(Array), "errors#[] should return an Array"
94:       end
test_errors_full_messages() click to toggle source

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

     # File lib/active_model/lint.rb, line 98
 98:       def test_errors_full_messages
 99:         assert model.respond_to?(:errors), "The model should respond to errors"
100:         assert model.errors.full_messages.is_a?(Array), "errors#full_messages should return an Array"
101:       end
test_model_naming() click to toggle source

Naming

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

    # File lib/active_model/lint.rb, line 72
72:       def test_model_naming
73:         assert model.class.respond_to?(:model_name), "The model should respond to model_name"
74:         model_name = model.class.model_name
75:         assert_kind_of String, model_name
76:         assert_kind_of String, model_name.human
77:         assert_kind_of String, model_name.partial_path
78:         assert_kind_of String, model_name.singular
79:         assert_kind_of String, model_name.plural
80:       end
test_persisted?() click to toggle source

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.

    # File lib/active_model/lint.rb, line 62
62:       def test_persisted?
63:         assert model.respond_to?(:persisted?), "The model should respond to persisted?"
64:         assert_boolean model.persisted?, "persisted?"
65:       end
test_to_key() click to toggle source

Responds to to_key

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

    # File lib/active_model/lint.rb, line 23
23:       def test_to_key
24:         assert model.respond_to?(:to_key), "The model should respond to to_key"
25:         def model.persisted?() false end
26:         assert model.to_key.nil?
27:       end
test_to_param() click to toggle source

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.

    # File lib/active_model/lint.rb, line 39
39:       def test_to_param
40:         assert model.respond_to?(:to_param), "The model should respond to to_param"
41:         def model.to_key() [1] end
42:         def model.persisted?() false end
43:         assert model.to_param.nil?
44:       end
test_valid?() click to toggle source

Responds to valid?

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

    # File lib/active_model/lint.rb, line 50
50:       def test_valid?
51:         assert model.respond_to?(:valid?), "The model should respond to valid?"
52:         assert_boolean model.valid?, "valid?"
53:       end

Private Instance Methods

assert_boolean(result, name) click to toggle source
     # File lib/active_model/lint.rb, line 109
109:         def assert_boolean(result, name)
110:           assert result == true || result == false, "#{name} should be a boolean"
111:         end
model() click to toggle source
     # File lib/active_model/lint.rb, line 104
104:         def model
105:           assert @model.respond_to?(:to_model), "The object should respond_to to_model"
106:           @model.to_model
107:         end

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