1 files changed, 21 insertions, 0 deletions
diff --git a/spec/ruby/core/data/members_spec.rb b/spec/ruby/core/data/members_spec.rb
new file mode 100644
index 0000000000..457a90a0d6
--- /dev/null
+++ b/spec/ruby/core/data/members_spec.rb
@@ -0,0 +1,21 @@
+require_relative '../../spec_helper'
+require_relative 'fixtures/classes'
+
+describe "Data#members" do
+  it "returns an array of attribute names" do
+    measure = DataSpecs::Measure.new(amount: 42, unit: 'km')
+    measure.members.should == [:amount, :unit]
+  end
+end
+
+describe "DataClass#members" do
+  it "returns an array of attribute names" do
+    DataSpecs::Measure.members.should == [:amount, :unit]
+  end
+
+  context "class inheriting Data" do
+    it "isn't available in a subclass" do
+      DataSpecs::DataSubclass.should_not.respond_to?(:members)
+    end
+  end
+end