Function test_empty_histogram

tests/test_optional/test_px/test_px_functions.py:652–659

Empty px.histogram() should not raise, matching scatter/bar/pie behavior. Regression test for https://github.com/plotly/plotly.py/issues/5534

()

def test_empty_histogram():
    """Empty px.histogram() should not raise, matching scatter/bar/pie behavior.

    Regression test for https://github.com/plotly/plotly.py/issues/5534
    """
    fig = px.histogram()
    assert len(fig.data) == 1
    assert fig.data[0].type == "histogram"