text: import pandas as pd
  
  from gobbli.dataset.newsgroups import NewsgroupsDataset
  
  
  def test_load_newsgroups(tmp_gobbli_dir):
      ds = NewsgroupsDataset.load()
  
      X_train = ds.X_train()
      X_test = ds.X_test()
  
      y_train = ds.y_train()
      y_test = ds.y_test()
  
      assert len(X_train) == 11314
      assert len(y_train) == 11314
      assert len(X_test) == 7532
      assert len(y_test) == 7532
  
      assert len(pd.unique(y_train)) == 20
      assert len(pd.unique(y_test)) == 20
  
      # Ensure these objects pass validation
      ds.train_input()
      ds.predict_input()
  