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trie, tests/fuzzers: implement a stacktrie fuzzer + stacktrie fixes (#21799)

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* trie: fix error in stacktrie not committing small roots

* fuzzers: make trie-fuzzer use correct returnvalues

* trie: improved tests

* tests/fuzzers: fuzzer for stacktrie vs regular trie

* test/fuzzers: make stacktrie fuzzer use 32-byte keys

* trie: fix error in stacktrie with small nodes

* trie: add (skipped) testcase for stacktrie

* tests/fuzzers: address review comments for stacktrie fuzzer

* trie: fix docs in stacktrie
This commit is contained in:
Martin Holst Swende
2020-11-09 15:08:12 +01:00
committed by GitHub
parent 97fc1c3b1d
commit 81678971db
6 changed files with 341 additions and 14 deletions
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11
tests/fuzzers/trie/trie-fuzzer.go
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@ -122,15 +122,22 @@ func Generate(input []byte) randTest {
return steps
}
// The function must return
// 1 if the fuzzer should increase priority of the
// given input during subsequent fuzzing (for example, the input is lexically
// correct and was parsed successfully);
// -1 if the input must not be added to corpus even if gives new coverage; and
// 0 otherwise
// other values are reserved for future use.
func Fuzz(input []byte) int {
program := Generate(input)
if len(program) == 0 {
return -1
return 0
}
if err := runRandTest(program); err != nil {
panic(err)
}
return 0
return 1
}
func runRandTest(rt randTest) error {