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-rw-r--r--lib/Fuzzer/test/merge-summary.test15
1 files changed, 15 insertions, 0 deletions
diff --git a/lib/Fuzzer/test/merge-summary.test b/lib/Fuzzer/test/merge-summary.test
new file mode 100644
index 000000000000..df9d62dec636
--- /dev/null
+++ b/lib/Fuzzer/test/merge-summary.test
@@ -0,0 +1,15 @@
+RUN: rm -rf %t/T1 %t/T2
+RUN: mkdir -p %t/T0 %t/T1 %t/T2
+RUN: echo ...Z.. > %t/T2/1
+RUN: echo ....E. > %t/T2/2
+RUN: echo .....R > %t/T2/3
+RUN: echo F..... > %t/T2/a
+RUN: echo .U.... > %t/T2/b
+RUN: echo ..Z... > %t/T2/c
+
+RUN: LLVMFuzzer-FullCoverageSetTest -merge=1 %t/T1 %t/T2 -save_coverage_summary=%t/SUMMARY 2>&1 | FileCheck %s --check-prefix=SAVE_SUMMARY
+SAVE_SUMMARY: MERGE-OUTER: writing coverage summary for 6 files to {{.*}}SUMMARY
+RUN: rm %t/T1/*
+RUN: LLVMFuzzer-FullCoverageSetTest -merge=1 %t/T1 %t/T2 -load_coverage_summary=%t/SUMMARY 2>&1 | FileCheck %s --check-prefix=LOAD_SUMMARY
+LOAD_SUMMARY: MERGE-OUTER: coverage summary loaded from {{.*}}SUMMAR
+LOAD_SUMMARY: MERGE-OUTER: 0 new files with 0 new features added