code: def test_trace_log_without_name(mocker):
      t = Trace(name="test")
  
      mock_run = mocker.MagicMock()
      mocker.patch("wandb.run", mock_run)
      mock_log = mocker.patch.object(mock_run, "log")
  
      with pytest.raises(AssertionError):
          t.log("")
  
      mock_log.assert_not_called()
  
imports: import time
  import pytest
  from wandb.sdk.data_types.trace_tree import Span, SpanKind, StatusCode, Trace
label_desc: Use image node_id 26 for calling a global function with example usage: test_trace_log_without_name(mocker) without return types