Add simple attribute implementation backed by ivars

1 files changed, 30 insertions, 0 deletions

diff --git a/activemodel/test/cases/attributes_test.rb b/activemodel/test/cases/attributes_test.rb
new file mode 100644
index 0000000000..5f3ea839a4
--- /dev/null
+++ b/activemodel/test/cases/attributes_test.rb
@@ -0,0 +1,30 @@
+require 'cases/helper'
+
+class AttributesTest < ActiveModel::TestCase
+  class Person
+    include ActiveModel::Attributes
+    attr_accessor :name
+  end
+
+  test "reads attribute" do
+    p = Person.new
+    assert_equal nil, p.read_attribute(:name)
+
+    p.name = "Josh"
+    assert_equal "Josh", p.read_attribute(:name)
+  end
+
+  test "writes attribute" do
+    p = Person.new
+    assert_equal nil, p.name
+
+    p.write_attribute(:name, "Josh")
+    assert_equal "Josh", p.name
+  end
+
+  test "returns all attributes" do
+    p = Person.new
+    p.name = "Josh"
+    assert_equal({"name" => "Josh"}, p.attributes)
+  end
+end