def METHOD_NAME(self):
    # First, run the tests with default and teeny buffer size.
    for round, bs in (0, 0), (1, 30):
        try:
            t1 = writeTmp(1, ["Line %s of file 1\n" % (i+1) for i in range(15)])
            t2 = writeTmp(2, ["Line %s of file 2\n" % (i+1) for i in range(10)])
            t3 = writeTmp(3, ["Line %s of file 3\n" % (i+1) for i in range(5)])
            t4 = writeTmp(4, ["Line %s of file 4\n" % (i+1) for i in range(1)])
            self.buffer_size_test(t1, t2, t3, t4, bs, round)
        finally:
            remove_tempfiles(t1, t2, t3, t4)