Failing test for GeneratedAttribute [#5461 state:open]

Signed-off-by: NJosé Valim <jose.valim@gmail.com>

railties/test/generators/generated_attribute_test.rb

@@ -108,4 +108,16 @@ def test_reference_is_false
       )
     end
   end
+
+  def test_nil_type_raises_exception
+    assert_raise Thor::Error do
+      create_generated_attribute(nil, 'title')
+    end
+  end
+
+  def test_missing_type_raises_exception
+    assert_raise Thor::Error do
+      create_generated_attribute(:'', 'title')
+    end
+  end
 end