content: #  Copyright (c) ZenML GmbH 2023. All Rights Reserved.
  #
  #  Licensed under the Apache License, Version 2.0 (the "License");
  #  you may not use this file except in compliance with the License.
  #  You may obtain a copy of the License at:
  #
  #       https://www.apache.org/licenses/LICENSE-2.0
  #
  #  Unless required by applicable law or agreed to in writing, software
  #  distributed under the License is distributed on an "AS IS" BASIS,
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  """Unit tests for the Facets materializer."""
  
  from contextlib import ExitStack as does_not_raise
  
  import pandas as pd
  
  from tests.unit.test_general import _test_materializer
  from zenml.integrations.facets.materializers.facets_materializer import (
      FacetsMaterializer,
  )
  from zenml.integrations.facets.models import FacetsComparison
  
  
  def test_facets_materializer(clean_client):
      """Test the Facets materializer."""
      df = pd.DataFrame({"A": [1, 2, 3], "B": [4, 5, 6]}, index=["a", "b", "c"])
  
      for i in range(3):
          facets_comparison = FacetsComparison(
              datasets=[{"name": f"dataset_{i}", "table": df} for j in range(i)]
          )
  
          with does_not_raise():
              _test_materializer(
                  step_output=facets_comparison,
                  materializer_class=FacetsMaterializer,
                  assert_data_exists=False,
                  assert_data_type=False,
                  assert_visualization_exists=True,
              )
  