Method check_big_compress_buffer

Lib/test/test_zlib.py:292–303

(self, size, compress_func)

class BaseCompressTestCase(object):
    def check_big_compress_buffer(self, size, compress_func):
        _1M = 1024 * 1024
        # Generate 10 MiB worth of random, and expand it by repeating it.
        # The assumption is that zlib's memory is not big enough to exploit
        # such spread out redundancy.
        data = random.randbytes(_1M * 10)
        data = data * (size // len(data) + 1)
        try:
            compress_func(data)
        finally:
            # Release memory
            data = None

    def check_big_decompress_buffer(self, size, decompress_func):
        data = b'x' * size