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[libFuzzer] simplify CustomCrossOverTest even more 

llvm-svn: 312697
This commit is contained in:
Kostya Serebryany 2017-09-07 05:33:05 +00:00
parent 80acd0fd0b
commit 754e584076
2 changed files with 10 additions and 7 deletions
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8
compiler-rt/test/fuzzer/CustomCrossOverTest.cpp
View File

@ -15,12 +15,20 @@
static const char *Separator = "-########-";
static const char *Target = "A-########-B";
static volatile int sink;
extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
assert(Data);
std::string Str(reinterpret_cast<const char *>(Data), Size);
static const size_t TargetHash = std::hash<std::string>{}(std::string(Target));
size_t StrHash = std::hash<std::string>{}(Str);
// Ensure we have 'A' and 'B' in the corpus.
if (Size == 1 && *Data == 'A')
sink++;
if (Size == 1 && *Data == 'B')
sink--;
if (TargetHash == StrHash) {
std::cout << "BINGO; Found the target, exiting\n" << std::flush;
exit(1);

9
compiler-rt/test/fuzzer/fuzzer-customcrossover.test
View File

@ -1,13 +1,8 @@
RUN: %cpp_compiler %S/CustomCrossOverTest.cpp -o %t-CustomCrossOverTest
RUN: rm -rf %t/CustomCrossover
RUN: mkdir -p %t/CustomCrossover
RUN: echo -n A > %t/CustomCrossover/digits
RUN: echo -n B > %t/CustomCrossover/chars
RUN: not %t-CustomCrossOverTest -seed=1 -runs=100000 %t/CustomCrossover 2>&1 | FileCheck %s --check-prefix=CHECK_CO
RUN: not %t-CustomCrossOverTest -seed=1 -runs=100000 2>&1 | FileCheck %s --check-prefix=CHECK_CO
Disable cross_over, verify that we can't find the target w/o it.
RUN: %t-CustomCrossOverTest -seed=1 -runs=1000000 %t/CustomCrossover -cross_over=0 2>&1 | FileCheck %s --check-prefix=CHECK_NO_CO
RUN: rm -rf %t/CustomCrossover
RUN: %t-CustomCrossOverTest -seed=1 -runs=1000000 -cross_over=0 2>&1 | FileCheck %s --check-prefix=CHECK_NO_CO
CHECK_CO: In LLVMFuzzerCustomCrossover
CHECK_CO: BINGO