diff options
Diffstat (limited to 'compiler-rt/test/fuzzer/merge.test')
| -rw-r--r-- | compiler-rt/test/fuzzer/merge.test | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/compiler-rt/test/fuzzer/merge.test b/compiler-rt/test/fuzzer/merge.test new file mode 100644 index 00000000000..30e27b8d202 --- /dev/null +++ b/compiler-rt/test/fuzzer/merge.test @@ -0,0 +1,55 @@ +CHECK: BINGO + +RUN: %cpp_compiler %S/FullCoverageSetTest.cpp -o %t-FullCoverageSetTest + +RUN: rm -rf %tmp/T0 %tmp/T1 %tmp/T2 +RUN: mkdir -p %tmp/T0 %tmp/T1 %tmp/T2 +RUN: echo F..... > %tmp/T0/1 +RUN: echo .U.... > %tmp/T0/2 +RUN: echo ..Z... > %tmp/T0/3 + +# T1 has 3 elements, T2 is empty. +RUN: cp %tmp/T0/* %tmp/T1/ +RUN: %t-FullCoverageSetTest -merge=1 %tmp/T1 %tmp/T2 2>&1 | FileCheck %s --check-prefix=CHECK1 +CHECK1: MERGE-OUTER: 3 files, 3 in the initial corpus +CHECK1: MERGE-OUTER: 0 new files with 0 new features added + +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: %t-FullCoverageSetTest -merge=1 %tmp/T1 %tmp/T2 2>&1 | FileCheck %s --check-prefix=CHECK2 +CHECK2: MERGE-OUTER: 9 files, 3 in the initial corpus +CHECK2: MERGE-OUTER: 3 new files with 3 new features added + +# Now, T1 has 6 units and T2 has no new interesting units. +RUN: %t-FullCoverageSetTest -merge=1 %tmp/T1 %tmp/T2 2>&1 | FileCheck %s --check-prefix=CHECK3 +CHECK3: MERGE-OUTER: 12 files, 6 in the initial corpus +CHECK3: MERGE-OUTER: 0 new files with 0 new features added + +# Check that we respect max_len during the merge and don't crash. +RUN: rm %tmp/T1/* +RUN: cp %tmp/T0/* %tmp/T1/ +RUN: echo looooooooong > %tmp/T2/looooooooong +RUN: %t-FullCoverageSetTest -merge=1 %tmp/T1 %tmp/T2 -max_len=6 2>&1 | FileCheck %s --check-prefix=MAX_LEN +MAX_LEN: MERGE-OUTER: 3 new files + +# Check that merge tolerates failures. +RUN: rm %tmp/T1/* +RUN: cp %tmp/T0/* %tmp/T1/ +RUN: echo 'FUZZER' > %tmp/T2/FUZZER +RUN: %t-FullCoverageSetTest -merge=1 %tmp/T1 %tmp/T2 2>&1 | FileCheck %s --check-prefix=MERGE_WITH_CRASH +MERGE_WITH_CRASH: MERGE-OUTER: succesfull in 2 attempt(s) +MERGE_WITH_CRASH: MERGE-OUTER: 3 new files + +# Check that we actually limit the size with max_len +RUN: %t-FullCoverageSetTest -merge=1 %tmp/T1 %tmp/T2 -max_len=5 2>&1 | FileCheck %s --check-prefix=MERGE_LEN5 +MERGE_LEN5: MERGE-OUTER: succesfull in 1 attempt(s) + +RUN: rm -rf %tmp/T1/* %tmp/T2/* +RUN: not %t-FullCoverageSetTest -merge=1 %tmp/T1 %tmp/T2 2>&1 | FileCheck %s --check-prefix=EMPTY +EMPTY: MERGE-OUTER: zero succesfull attempts, exiting |
