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1a2be46cb5
Test-side changes accompanying the dataflow migration:
* Test queries (.ql) and shared test harness (TestSummaries,
TestTaintLib) qualify CFG / SSA types with Cfg:: / SsaImpl::,
bridge via AST (Name, Call, ...) instead of legacy NameNode /
CallNode, and switch GlobalSsaVariable / EssaVariable usages
to the new adapter API.
* .expected files updated for legitimate precision and toString
changes:
- phi-node def-use edges newly exposed in def_use_counts.
- scope-exit synthetic use surfaces one extra implicit use
in use-use-counts.
- For [empty]/[non-empty] outcome rows added in
EnclosingCallable.
- SsaSourceVariable / Global Variable label cosmetics
normalised throughout.
* Inline annotations:
- typetracking/test.py: removed MISSING:tracked on lines
93/95 (now found), added SPURIOUS:tracked on line 108
(decorator over-reach).
- global-flow/test.py: added SPURIOUS writes=g_mod on line
20 (correctly reports immediately-overwritten write).
- tainttracking/customSanitizer/test.py: marked
try/except: ensure_tainted(s) cases as MISSING: tainted
(no-raise CFG abstraction does not connect try body to
except body).
- coverage/test.py: marked
SINK(return_from_inner_scope([])) as
MISSING: flow=... pending closer investigation.
* regression/{dataflow,custom_dataflow}.expected: accept two
if/else cond-correlation over-reaches (documented limitation;
same imprecision applies under legacy semantics by design).
After this change the dataflow library-tests stand at 62 of 64
passing; the two remaining failures are tracked under the
ImportStarRefinement workstream.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
40 lines
1.7 KiB
Plaintext
40 lines
1.7 KiB
Plaintext
// This query should be more focused yet.
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import python
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import utils.test.dataflow.FlowTest
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private import semmle.python.dataflow.new.internal.PrintNode
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private import semmle.python.dataflow.new.internal.DataFlowPrivate as DP
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private import semmle.python.dataflow.new.internal.SsaImpl as SsaImpl
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module ImportTimeLocalFlowTest implements FlowTestSig {
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string flowTag() { result = "importTimeFlow" }
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predicate relevantFlow(DataFlow::Node nodeFrom, DataFlow::Node nodeTo) {
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nodeFrom.getLocation().getFile().getBaseName() = "multiphase.py" and
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// results are displayed next to `nodeTo`, so we need a line to write on
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nodeTo.getLocation().getStartLine() > 0 and
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exists(SsaImpl::EssaVariable g |
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g.getSourceVariable().getVariable() instanceof GlobalVariable and
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nodeTo.asCfgNode() = g.getDefinition().(SsaImpl::EssaNodeDefinition).getDefiningNode()
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) and
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// nodeTo.asVar() instanceof GlobalSsaVariable and
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DP::PhaseDependentFlow<DP::LocalFlow::localFlowStep/2>::importTimeStep(nodeFrom, nodeTo)
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}
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}
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module RuntimeLocalFlowTest implements FlowTestSig {
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string flowTag() { result = "runtimeFlow" }
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predicate relevantFlow(DataFlow::Node nodeFrom, DataFlow::Node nodeTo) {
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nodeFrom.getLocation().getFile().getBaseName() = "multiphase.py" and
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// results are displayed next to `nodeTo`, so we need a line to write on
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nodeTo.getLocation().getStartLine() > 0 and
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(
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nodeFrom instanceof DataFlow::ModuleVariableNode or
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nodeTo instanceof DataFlow::ModuleVariableNode
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) and
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DP::runtimeJumpStep(nodeFrom, nodeTo)
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}
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}
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import MakeTest<MergeTests<MakeTestSig<ImportTimeLocalFlowTest>, MakeTestSig<RuntimeLocalFlowTest>>>
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