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Python: Simplify modelling

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This commit is contained in:
Rasmus Lerchedahl Petersen
2021-01-22 19:40:34 +01:00
parent f948ef8f27
commit 0d20a4cb4a
3 changed files with 311 additions and 295 deletions
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15
python/ql/test/experimental/dataflow/coverage/test.py
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@@ -561,7 +561,16 @@ def test_iterated_unpacking_assignment():
SINK(a) #$ flow="SOURCE, l:-2 -> a"
SINK_F(b)
SINK(b[0]) #$ flow="SOURCE, l:-4 -> b[0]"
SINK_F(c)
SINK_F(c) #$ SPURIOUS: flow="SOURCE, l:-5 -> c" # We do not track tuple sizes
@expects(4)
def test_iterated_unpacking_assignment_shrink():
t = (SOURCE, SOURCE)
a, *b, c = t
SINK(a) #$ flow="SOURCE, l:-2 -> a"
SINK_F(b)
SINK(c) #$ flow="SOURCE, l:-4 -> c"
@expects(15)
@@ -603,7 +612,7 @@ def test_iterated_unpacking_assignment_conversion():
SINK_F(a2[0]) #$ SPURIOUS: flow="SOURCE, l:-6 -> a2[0]" # FP here due to list abstraction
SINK(a2[1]) #$ flow="SOURCE, l:-7 -> a2[1]"
SINK_F(b) # The list itself is not tainted
SINK_F(b[0]) # Expected FP here due to list abstraction
SINK_F(b[0])
# tuple
((a1, *a2), *b) = tt
@@ -621,7 +630,7 @@ def test_iterated_unpacking_assignment_conversion():
SINK_F(a2[0]) #$ SPURIOUS: flow="SOURCE, l:-24 -> a2[0]" # FP here due to list abstraction
SINK(a2[1]) #$ flow="SOURCE, l:-25 -> a2[1]"
SINK_F(b) # The list itself is not tainted
SINK_F(b[0]) # Expected FP here due to list abstraction
SINK_F(b[0])
# mixed differently
([a1, *a2], *b) = tt