new_contents: import io
  from unittest.mock import Mock, mock_open, patch
  
  import strawberry
  from django.core.management import call_command
  
  
  def test_generate_graphql_schema():
      out = io.StringIO()
  
      m_open = mock_open()
  
      @strawberry.type
      class TestSchema:
          a: int
  
      with patch("api.management.commands.graphql_schema.json.dump") as mock_j, patch(
          "api.management.commands.graphql_schema.graphql_sync"
      ) as p, patch("api.management.commands.graphql_schema.open", m_open, create=True):
          m = Mock()
          m.data = {"a": 1}
          p.return_value = m
  
          call_command("graphql_schema", stdout=out)
  
      assert "Successfully dumped GraphQL schema to schema.json\n" in out.getvalue()
  
      mock_j.assert_called_once()
      assert mock_j.call_args_list[0][0][0] == {"data": {"a": 1}}
  
subject: Add tests for the graphql_schema command