def test10_range(self):

        if common.verbose:
            print('\n', '-=' * 30)
            print("Running %s.test10_range..." % self.__class__.__name__)

        # Case where start < 0 and stop = 0
        self.nrows = self.expectedrows
        self.nrowsinbuf = 5  # Choose a small value for the buffer size
        self.start = -6
        self.startr = self.expectedrows + self.start
        self.stop = 0
        self.stopr = self.expectedrows + self.stop
        self.step = 2

        self.check_range()
Ensure we have treasury data from treasury module associated with
dataset/ETHPy150Open PyTables/PyTables/tables/tests/test_tablesMD.py/BasicRangeTestCase.test10_range--crossover with--dataset/ETHPy150Open quantopian/zipline/zipline/data/loader.py/ensure_treasury_data