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## develop #16851 +/- ##
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- Coverage 81.85% 66.97% -14.88%
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Files 161 55 -106
Lines 9219 4660 -4559
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- Hits 7546 3121 -4425
+ Misses 1529 1394 -135
- Partials 144 145 +1
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Add vm version caching, randomSeed configuration to DiffTester
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mbaxter
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Aug 1, 2025
Inphi
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Aug 11, 2025
theochap
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* Migrate first fuzz test Add vm version caching, randomSeed configuration to DiffTester * Move diffTester setup outside of fuzz function * Simplify FuzzStateSyscallBrk * Migrate FuzzStateSyscallMmap * Standardize fuzz TestOption's * Migrate FuzzStateSyscallExitGroup * Migrate FuzzStateSyscallFcntl * Migrate FuzzStateHintRead, pass step witness to PostCheckFn * Migrate FuzzStatePreimageRead * Migrate FuzzStateHintWrite * Migrate FuzzStateConsistencyMulOp * Migrate multiplication fuzz tests * Migrate FuzzStatePreimageWrite * Reuse / cache test setup when generating modifications * Fix FuzzStateHintWrite perf - calculate hint data inside of tests
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* Migrate first fuzz test Add vm version caching, randomSeed configuration to DiffTester * Move diffTester setup outside of fuzz function * Simplify FuzzStateSyscallBrk * Migrate FuzzStateSyscallMmap * Standardize fuzz TestOption's * Migrate FuzzStateSyscallExitGroup * Migrate FuzzStateSyscallFcntl * Migrate FuzzStateHintRead, pass step witness to PostCheckFn * Migrate FuzzStatePreimageRead * Migrate FuzzStateHintWrite * Migrate FuzzStateConsistencyMulOp * Migrate multiplication fuzz tests * Migrate FuzzStatePreimageWrite * Reuse / cache test setup when generating modifications * Fix FuzzStateHintWrite perf - calculate hint data inside of tests
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* Migrate first fuzz test Add vm version caching, randomSeed configuration to DiffTester * Move diffTester setup outside of fuzz function * Simplify FuzzStateSyscallBrk * Migrate FuzzStateSyscallMmap * Standardize fuzz TestOption's * Migrate FuzzStateSyscallExitGroup * Migrate FuzzStateSyscallFcntl * Migrate FuzzStateHintRead, pass step witness to PostCheckFn * Migrate FuzzStatePreimageRead * Migrate FuzzStateHintWrite * Migrate FuzzStateConsistencyMulOp * Migrate multiplication fuzz tests * Migrate FuzzStatePreimageWrite * Reuse / cache test setup when generating modifications * Fix FuzzStateHintWrite perf - calculate hint data inside of tests
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Description
Migrate fuzz tests to use the
DiffTesterframework introduced here.As part of this migration, tweaked the
DiffTesterto improve performance:VersionedVMTestCaseobjects to be injected once to save time on setup (these are expensive to generate because we are loading / reading contract data)generateTestModifiers()And made a few other adjustments to support the tests:
DiffTesterPostStateCheckFnaccess to the finalStepWitnessproducedMetadata
Part of #16483