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May 6, 2023
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Test both lists and tuples as qtables arguments #6900

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parametrize check_jpeg_leaks::test_qtables_leak() 
Co-authored-by: Andrew Murray <3112309+radarhere@users.noreply.github.com>
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@Yay295 @radarhere
Yay295 and radarhere committed Jan 16, 2023
commit e3dd4de1934c35144430de1a411d1df5bad84732
71 changes: 35 additions & 36 deletions Tests/check_jpeg_leaks.py
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Expand Up @@ -75,43 +75,42 @@
"""


def test_qtables_leak():
standard_l_qtable = (
# fmt: off
16, 11, 10, 16, 24, 40, 51, 61,
12, 12, 14, 19, 26, 58, 60, 55,
14, 13, 16, 24, 40, 57, 69, 56,
14, 17, 22, 29, 51, 87, 80, 62,
18, 22, 37, 56, 68, 109, 103, 77,
24, 35, 55, 64, 81, 104, 113, 92,
49, 64, 78, 87, 103, 121, 120, 101,
72, 92, 95, 98, 112, 100, 103, 99,
# fmt: on
)

standard_chrominance_qtable = (
# fmt: off
17, 18, 24, 47, 99, 99, 99, 99,
18, 21, 26, 66, 99, 99, 99, 99,
24, 26, 56, 99, 99, 99, 99, 99,
47, 66, 99, 99, 99, 99, 99, 99,
99, 99, 99, 99, 99, 99, 99, 99,
99, 99, 99, 99, 99, 99, 99, 99,
99, 99, 99, 99, 99, 99, 99, 99,
99, 99, 99, 99, 99, 99, 99, 99,
# fmt: on
)


@pytest.mark.parametrize(
"qtables",
(
(standard_l_qtable, standard_chrominance_qtable),
[standard_l_qtable, standard_chrominance_qtable],
),
)
def test_qtables_leak(qtables):
im = hopper("RGB")

standard_l_qtable = [
int(s)
for s in """
16 11 10 16 24 40 51 61
12 12 14 19 26 58 60 55
14 13 16 24 40 57 69 56
14 17 22 29 51 87 80 62
18 22 37 56 68 109 103 77
24 35 55 64 81 104 113 92
49 64 78 87 103 121 120 101
72 92 95 98 112 100 103 99
""".split(
None
)
]

standard_chrominance_qtable = [
int(s)
for s in """
17 18 24 47 99 99 99 99
18 21 26 66 99 99 99 99
24 26 56 99 99 99 99 99
47 66 99 99 99 99 99 99
99 99 99 99 99 99 99 99
99 99 99 99 99 99 99 99
99 99 99 99 99 99 99 99
99 99 99 99 99 99 99 99
""".split(
None
)
]

qtables = [standard_l_qtable, standard_chrominance_qtable]

for _ in range(iterations):
test_output = BytesIO()
im.save(test_output, "JPEG", qtables=qtables)
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