1 files changed, 64 insertions, 0 deletions
diff --git a/activerecord/test/cases/custom_properties_test.rb b/activerecord/test/cases/custom_properties_test.rb
new file mode 100644
index 0000000000..9598f0299c
--- /dev/null
+++ b/activerecord/test/cases/custom_properties_test.rb
@@ -0,0 +1,64 @@
+require 'cases/helper'
+
+class OverloadedType < ActiveRecord::Base
+  property :overloaded_float, Type::Integer.new
+  property :overloaded_string_with_limit, Type::String.new(limit: 50)
+  property :non_existent_decimal, Type::Decimal.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_equal 2.0, 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_property
+      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_overloaded_properties_have_no_default
+      data = OverloadedType.new
+      unoverloaded_data = UnoverloadedType.new
+
+      assert_nil data.overloaded_float
+      assert unoverloaded_data.overloaded_float
+    end
+  end
+end