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llvm-mirror/lib/Fuzzer/test/merge.test
Kostya Serebryany c171514e30 [libFuzzer] add -merge flag to merge corpora
llvm-svn: 251168
2015-10-24 01:16:40 +00:00

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CHECK: BINGO
RUN: rm -rf %tmp/T1 %tmp/T2
RUN: mkdir -p %tmp/T1 %tmp/T2
RUN: echo F..... > %tmp/T1/1
RUN: echo .U.... > %tmp/T1/2
RUN: echo ..Z... > %tmp/T1/3
# T1 has 3 elements, T2 is empty.
RUN: LLVMFuzzer-FullCoverageSetTest -merge=1 %tmp/T1 %tmp/T2 2>&1 | FileCheck %s --check-prefix=CHECK1
CHECK1: Merge: running the initial corpus {{.*}} of 3 units
CHECK1: Merge: written 0 out of 0 units
RUN: echo ...Z.. > %tmp/T2/1
RUN: echo ....E. > %tmp/T2/2
RUN: echo .....R > %tmp/T2/3
RUN: echo F..... > %tmp/T2/a
RUN: echo .U.... > %tmp/T2/b
RUN: echo ..Z... > %tmp/T2/c
# T1 has 3 elements, T2 has 6 elements, only 3 are new.
RUN: LLVMFuzzer-FullCoverageSetTest -merge=1 %tmp/T1 %tmp/T2 2>&1 | FileCheck %s --check-prefix=CHECK2
CHECK2: Merge: running the initial corpus {{.*}} of 3 units
CHECK2: Merge: written 3 out of 6 units
# Now, T1 has 6 units and T2 has no new interesting units.
RUN: LLVMFuzzer-FullCoverageSetTest -merge=1 %tmp/T1 %tmp/T2 2>&1 | FileCheck %s --check-prefix=CHECK3
CHECK3: Merge: running the initial corpus {{.*}} of 6 units
CHECK3: Merge: written 0 out of 6 units