def METHOD_NAME(app):
    shape = app.books["test book.xlsx"].sheets["shape"].shapes[0]
    shape.text = ""
    shape.text = Markdown(text1)
    assert shape.font.name == "Calibri"
    assert shape.font.size == 11
    assert shape.characters[:5].font.bold is True
    assert shape.characters[7:11].font.bold is False
    assert shape.characters[7:11].font.italic is False
    assert shape.characters[21:27].font.italic is True
    assert shape.characters[65:78].font.bold is True