'Test the _write_row_breaks() method'

def test_write_row_breaks_2(self):

    self.worksheet.hbreaks = [15, 7, 3, 0]
    self.worksheet._write_row_breaks()
    exp = '<rowBreaks    count="3"    manualBreakCount="3"><brk    id="3"    max="16383"    man="1"/><brk    id="7"    max="16383"    man="1"/><brk    id="15"    max="16383"    man="1"/></rowBreaks>'
    got = self.fh.getvalue()
    self.assertEqual(got, exp)
