import param
import pytest

param.parameterized.warnings_as_exceptions = True

@pytest.fixture
def dataframe():
    import pandas as pd
    return pd.DataFrame({
        'int': [1, 2, 3],
        'float': [3.14, 6.28, 9.42],
        'str': ['A', 'B', 'C']
    }, index=[1, 2, 3], columns=['int', 'float', 'str'])