text: from wazimap_ng.datasets.models import Indicator, Dataset, DatasetData, Group
  
  from unittest.mock import patch
  from unittest.mock import Mock
  
  class TestGroup:
      def test_create_group(self):
          dataset = Dataset(name="test dataset")
          g = Group(name="Hello", dataset=dataset)
          assert len(g.subindicators) == 0
          assert g.name == "Hello"
          assert g.dataset == dataset
  
  
      def test_str(self):
          d = Dataset(name="Test Dataset")
          g = Group(name="Hello", dataset=d)
          assert str(g) == f"Test Dataset|Hello"
  