old_contents: from sqlalchemy_continuum.plugins import PluginCollection
  
  
  class TestPluginCollection(object):
      def test_init(self):
          assert PluginCollection([1, 2, 3]).plugins == [1, 2, 3]
  
      def test_iter(self):
          assert list(PluginCollection([1, 2, 3])) == [1, 2, 3]
  
      def test_len(self):
          assert len(PluginCollection()) == 0
          assert len(PluginCollection([1, 2, 3])) == 3
  
      def test_getitem(self):
          assert PluginCollection([1, 2])[0] == 1
  
      def test_setitem(self):
          coll = PluginCollection([1, 2])
          coll[0] = 2
          assert coll[0] == 2
  
      def test_delitem(self):
          coll = PluginCollection([1, 2])
          del coll[0]
          assert list(coll) == [2]
  
      def test_append(self):
          coll = PluginCollection([1, 2])
          coll.append(3)
          assert list(coll) == [1, 2, 3]
  
new_contents: from sqlalchemy_continuum.plugins import PluginCollection
  
  
  class TestPluginCollection(object):
      def test_init(self):
          assert PluginCollection([1, 2, 3]).plugins == [1, 2, 3]
  
      def test_iter(self):
          assert list(PluginCollection([1, 2, 3])) == [1, 2, 3]
  
      def test_len(self):
          assert len(PluginCollection()) == 0
          assert len(PluginCollection([1, 2, 3])) == 3
  
      def test_getitem(self):
          assert PluginCollection([1, 2])[0] == 1
  
      def test_setitem(self):
          coll = PluginCollection([1, 2])
          coll[0] = 2
          assert coll[0] == 2
  
      def test_delitem(self):
          coll = PluginCollection([1, 2])
          del coll[0]
          assert list(coll) == [2]
  
      def test_append(self):
          coll = PluginCollection([1, 2])
          coll.append(3)
          assert list(coll) == [1, 2, 3]
  
      def test_getattr(self):
          class MyPlugin(object):
              def some_action(self):
                  return 4
          coll = PluginCollection([MyPlugin(), MyPlugin()])
          assert list(coll.some_action()) == [4, 4]
  
subject: Add tests for getattr