test_qrcode.py 文件源码

def test_save_svgz_filename():
    import gzip
    qr = segno.make_qr('test')
    f = tempfile.NamedTemporaryFile('wb', suffix='.svgz', delete=False)
    f.close()
    qr.save(f.name)
    f = open(f.name, mode='rb')
    expected = b'\x1f\x8b\x08'  # gzip magic number
    val = f.read(len(expected))
    f.close()
    f = gzip.open(f.name)
    try:
        content = f.read(6)
    finally:
        f.close()
    os.unlink(f.name)
    assert expected == val
    assert b'<?xml ' == content