Skip to content
This repository
tree: 8df787d428
Fetching contributors…

Cannot retrieve contributors at this time

file 241 lines (182 sloc) 6.72 kb
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241
require 'cases/helper'

class ModelWithAttributes
  include ActiveModel::AttributeMethods

  class << self
    define_method(:bar) do
      'original bar'
    end
  end

  def attributes
    { :foo => 'value of foo' }
  end

private
  def attribute(name)
    attributes[name.to_sym]
  end
end

class ModelWithAttributes2
  include ActiveModel::AttributeMethods

  attr_accessor :attributes

  attribute_method_suffix '_test'

private
  def attribute(name)
    attributes[name.to_s]
  end

  alias attribute_test attribute

  def private_method
    "<3 <3"
  end

protected

  def protected_method
    "O_o O_o"
  end
end

class ModelWithAttributesWithSpaces
  include ActiveModel::AttributeMethods

  def attributes
    { :'foo bar' => 'value of foo bar'}
  end

private
  def attribute(name)
    attributes[name.to_sym]
  end
end

class ModelWithWeirdNamesAttributes
  include ActiveModel::AttributeMethods

  class << self
    define_method(:'c?d') do
      'original c?d'
    end
  end

  def attributes
    { :'a?b' => 'value of a?b' }
  end

private
  def attribute(name)
    attributes[name.to_sym]
  end
end

class AttributeMethodsTest < ActiveModel::TestCase
  test 'unrelated classes should not share attribute method matchers' do
    assert_not_equal ModelWithAttributes.send(:attribute_method_matchers),
                     ModelWithAttributes2.send(:attribute_method_matchers)
  end

  test '#define_attribute_method generates attribute method' do
    ModelWithAttributes.define_attribute_method(:foo)

    assert_respond_to ModelWithAttributes.new, :foo
    assert_equal "value of foo", ModelWithAttributes.new.foo
  end

  test '#define_attribute_method does not generate attribute method if already defined in attribute module' do
    klass = Class.new(ModelWithAttributes)
    klass.generated_attribute_methods.module_eval do
      def foo
        '<3'
      end
    end
    klass.define_attribute_method(:foo)

    assert_equal '<3', klass.new.foo
  end

  test '#define_attribute_method generates a method that is already defined on the host' do
    klass = Class.new(ModelWithAttributes) do
      def foo
        super
      end
    end
    klass.define_attribute_method(:foo)

    assert_equal 'value of foo', klass.new.foo
  end

  test '#define_attribute_method generates attribute method with invalid identifier characters' do
    ModelWithWeirdNamesAttributes.define_attribute_method(:'a?b')

    assert_respond_to ModelWithWeirdNamesAttributes.new, :'a?b'
    assert_equal "value of a?b", ModelWithWeirdNamesAttributes.new.send('a?b')
  end

  test '#define_attribute_methods generates attribute methods' do
    ModelWithAttributes.define_attribute_methods([:foo])

    assert_respond_to ModelWithAttributes.new, :foo
    assert_equal "value of foo", ModelWithAttributes.new.foo
  end

  test '#define_attribute_methods generates attribute methods with spaces in their names' do
    ModelWithAttributesWithSpaces.define_attribute_methods([:'foo bar'])

    assert_respond_to ModelWithAttributesWithSpaces.new, :'foo bar'
    assert_equal "value of foo bar", ModelWithAttributesWithSpaces.new.send(:'foo bar')
  end

  test '#define_attr_method generates attribute method' do
    assert_deprecated do
      ModelWithAttributes.define_attr_method(:bar, 'bar')
    end

    assert_respond_to ModelWithAttributes, :bar

    assert_deprecated do
      assert_equal "original bar", ModelWithAttributes.original_bar
    end

    assert_equal "bar", ModelWithAttributes.bar
    ActiveSupport::Deprecation.silence do
      ModelWithAttributes.define_attr_method(:bar)
    end
    assert !ModelWithAttributes.bar
  end

  test '#define_attr_method generates attribute method with invalid identifier characters' do
    ActiveSupport::Deprecation.silence do
      ModelWithWeirdNamesAttributes.define_attr_method(:'c?d', 'c?d')
    end

    assert_respond_to ModelWithWeirdNamesAttributes, :'c?d'

    ActiveSupport::Deprecation.silence do
      assert_equal "original c?d", ModelWithWeirdNamesAttributes.send('original_c?d')
    end
    assert_equal "c?d", ModelWithWeirdNamesAttributes.send('c?d')
  end

  test '#alias_attribute works with attributes with spaces in their names' do
    ModelWithAttributesWithSpaces.define_attribute_methods([:'foo bar'])
    ModelWithAttributesWithSpaces.alias_attribute(:'foo_bar', :'foo bar')

    assert_equal "value of foo bar", ModelWithAttributesWithSpaces.new.foo_bar
  end

  test '#undefine_attribute_methods removes attribute methods' do
    ModelWithAttributes.define_attribute_methods([:foo])
    ModelWithAttributes.undefine_attribute_methods

    assert !ModelWithAttributes.new.respond_to?(:foo)
    assert_raises(NoMethodError) { ModelWithAttributes.new.foo }
  end

  test 'acessing a suffixed attribute' do
    m = ModelWithAttributes2.new
    m.attributes = { 'foo' => 'bar' }

    assert_equal 'bar', m.foo
    assert_equal 'bar', m.foo_test
  end

  test 'explicitly specifying an empty prefix/suffix is deprecated' do
    klass = Class.new(ModelWithAttributes)

    assert_deprecated { klass.attribute_method_suffix '' }
    assert_deprecated { klass.attribute_method_prefix '' }

    klass.define_attribute_methods([:foo])

    assert_equal 'value of foo', klass.new.foo
  end

  test 'should not interfere with method_missing if the attr has a private/protected method' do
    m = ModelWithAttributes2.new
    m.attributes = { 'private_method' => '<3', 'protected_method' => 'O_o' }

    # dispatches to the *method*, not the attribute
    assert_equal '<3 <3', m.send(:private_method)
    assert_equal 'O_o O_o', m.send(:protected_method)

    # sees that a method is already defined, so doesn't intervene
    assert_raises(NoMethodError) { m.private_method }
    assert_raises(NoMethodError) { m.protected_method }
  end

  test 'should not interfere with respond_to? if the attribute has a private/protected method' do
    m = ModelWithAttributes2.new
    m.attributes = { 'private_method' => '<3', 'protected_method' => 'O_o' }

    assert !m.respond_to?(:private_method)
    assert m.respond_to?(:private_method, true)

    # This is messed up, but it's how Ruby works at the moment. Apparently it will be changed
    # in the future.
    assert m.respond_to?(:protected_method)
    assert m.respond_to?(:protected_method, true)
  end

  test 'should use attribute_missing to dispatch a missing attribute' do
    m = ModelWithAttributes2.new
    m.attributes = { 'foo' => 'bar' }

    def m.attribute_missing(match, *args, &block)
      match
    end

    match = m.foo_test

    assert_equal 'foo', match.attr_name
    assert_equal 'attribute_test', match.target
    assert_equal 'foo_test', match.method_name
  end
end
Something went wrong with that request. Please try again.