1 files changed, 111 insertions, 0 deletions
diff --git a/activerecord/test/cases/attributes_test.rb b/activerecord/test/cases/attributes_test.rb
new file mode 100644
index 0000000000..79ef0502cb
--- /dev/null
+++ b/activerecord/test/cases/attributes_test.rb
@@ -0,0 +1,111 @@
+require 'cases/helper'
+
+class OverloadedType < ActiveRecord::Base
+  attribute :overloaded_float, Type::Integer.new
+  attribute :overloaded_string_with_limit, Type::String.new(limit: 50)
+  attribute :non_existent_decimal, Type::Decimal.new
+  attribute :string_with_default, Type::String.new, default: 'the overloaded default'
+end
+
+class ChildOfOverloadedType < OverloadedType
+end
+
+class GrandchildOfOverloadedType < ChildOfOverloadedType
+  attribute :overloaded_float, Type::Float.new
+end
+
+class UnoverloadedType < ActiveRecord::Base
+  self.table_name = 'overloaded_types'
+end
+
+module ActiveRecord
+  class CustomPropertiesTest < ActiveRecord::TestCase
+    def test_overloading_types
+      data = OverloadedType.new
+
+      data.overloaded_float = "1.1"
+      data.unoverloaded_float = "1.1"
+
+      assert_equal 1, data.overloaded_float
+      assert_equal 1.1, data.unoverloaded_float
+    end
+
+    def test_overloaded_properties_save
+      data = OverloadedType.new
+
+      data.overloaded_float = "2.2"
+      data.save!
+      data.reload
+
+      assert_equal 2, data.overloaded_float
+      assert_kind_of Fixnum, OverloadedType.last.overloaded_float
+      assert_equal 2.0, UnoverloadedType.last.overloaded_float
+      assert_kind_of Float, UnoverloadedType.last.overloaded_float
+    end
+
+    def test_properties_assigned_in_constructor
+      data = OverloadedType.new(overloaded_float: '3.3')
+
+      assert_equal 3, data.overloaded_float
+    end
+
+    def test_overloaded_properties_with_limit
+      assert_equal 50, OverloadedType.columns_hash['overloaded_string_with_limit'].limit
+      assert_equal 255, UnoverloadedType.columns_hash['overloaded_string_with_limit'].limit
+    end
+
+    def test_nonexistent_attribute
+      data = OverloadedType.new(non_existent_decimal: 1)
+
+      assert_equal BigDecimal.new(1), data.non_existent_decimal
+      assert_raise ActiveRecord::UnknownAttributeError do
+        UnoverloadedType.new(non_existent_decimal: 1)
+      end
+    end
+
+    def test_changing_defaults
+      data = OverloadedType.new
+      unoverloaded_data = UnoverloadedType.new
+
+      assert_equal 'the overloaded default', data.string_with_default
+      assert_equal 'the original default', unoverloaded_data.string_with_default
+    end
+
+    def test_children_inherit_custom_properties
+      data = ChildOfOverloadedType.new(overloaded_float: '4.4')
+
+      assert_equal 4, data.overloaded_float
+    end
+
+    def test_children_can_override_parents
+      data = GrandchildOfOverloadedType.new(overloaded_float: '4.4')
+
+      assert_equal 4.4, data.overloaded_float
+    end
+
+    def test_overloading_properties_does_not_change_column_order
+      column_names = OverloadedType.column_names
+      assert_equal %w(id overloaded_float unoverloaded_float overloaded_string_with_limit string_with_default non_existent_decimal), column_names
+    end
+
+    def test_caches_are_cleared
+      klass = Class.new(OverloadedType)
+
+      assert_equal 6, klass.columns.length
+      assert_not klass.columns_hash.key?('wibble')
+      assert_equal 6, klass.column_types.length
+      assert_equal 6, klass.column_defaults.length
+      assert_not klass.column_names.include?('wibble')
+      assert_equal 5, klass.content_columns.length
+
+      klass.attribute :wibble, Type::Value.new
+
+      assert_equal 7, klass.columns.length
+      assert klass.columns_hash.key?('wibble')
+      assert_equal 7, klass.column_types.length
+      assert_equal 7, klass.column_defaults.length
+      assert klass.column_names.include?('wibble')
+      assert_equal 6, klass.content_columns.length
+    end
+  end
+end