Merge pull request #31926 from composerinteralia/am-attributes

Add ActiveModel::Attributes#attributes

activemodel/lib/active_model/attributes.rb

@@ -66,6 +66,10 @@ def initialize(*)
       super
     end
 
+    def attributes
+      @attributes.to_hash
+    end
+
     private
 
       def write_attribute(attr_name, value)

activemodel/test/cases/attributes_test.rb

@@ -47,6 +47,26 @@ class GrandchildModelForAttributesTest < ChildModelForAttributesTest
       assert_equal true, data.boolean_field
     end
 
+    test "reading attributes" do
+      data = ModelForAttributesTest.new(
+        integer_field: 1.1,
+        string_field: 1.1,
+        decimal_field: 1.1,
+        boolean_field: 1.1
+      )
+
+      expected_attributes = {
+        integer_field: 1,
+        string_field: "1.1",
+        decimal_field: BigDecimal("1.1"),
+        string_with_default: "default string",
+        date_field: Date.new(2016, 1, 1),
+        boolean_field: true
+      }.stringify_keys
+
+      assert_equal expected_attributes, data.attributes
+    end
+
     test "nonexistent attribute" do
       assert_raise ActiveModel::UnknownAttributeError do
         ModelForAttributesTest.new(nonexistent: "nonexistent")