[llvm-cov] Reland sources-specified.test with addition of "-path-equivalence".

[Dor1s]

Summary

This version of tests should be working properly.

[Dor1s]

Minor change: use space instead of {{.*}} between "TOTAL" and "3".

[Dor1s]

I've tested this change on two different machines : Linux and Mac. I hope it's correct and reliable now, but would appreciate if you take another look :)

[vsk]

Ah, sorry I missed the path issue. This looks good.

[Dor1s]

Thank you Vedant!

test/tools/llvm-cov/sources-specified.test

+RUN: llvm-cov report -instr-profile %S/Inputs/sources_specified/main.profdata \
+RUN:   -path-equivalence=/tmp,%S/Inputs \
+RUN:   %S/Inputs/sources_specified/main.covmapping \
+RUN:   %S/Inputs/sources_specified/main.cc %S/Inputs/sources_specified/extra \
+RUN:   | FileCheck -check-prefix=REPORT %s
+
+RUN: llvm-cov show -instr-profile %S/Inputs/sources_specified/main.profdata \
+RUN:   -path-equivalence=/tmp,%S/Inputs \
+RUN:   %S/Inputs/sources_specified/main.covmapping \
+RUN:   %S/Inputs/sources_specified/main.cc %S/Inputs/sources_specified/extra \
+RUN:   | FileCheck -check-prefix=SHOW %s
+
+# Order of files may differ, check the total values calculated.
+REPORT-NOT: {{.*}}abs.h{{.*}}
+REPORT: {{^}}TOTAL 3{{.*}}72.73%
+
+# Order of files may differ, check that there are 3 files and not abs.h.
+SHOW-NOT: {{.*}}abs.h{{.*}}
+SHOW: {{.*}}sources_specified{{.*}}
+SHOW: {{.*}}sources_specified{{.*}}
+SHOW: {{.*}}sources_specified{{.*}}
+
+Instructions for regenerating the test:
+
+# cd %S/Inputs/sources_specified
+cp -r . /tmp/sources_specified
+
+clang -mllvm -enable-name-compression=false -fprofile-instr-generate \
+    -fcoverage-mapping /tmp/sources_specified/main.cc -o main
+
+LLVM_PROFILE_FILE="main.raw" ./main
+llvm-profdata merge main.raw -o main.profdata
+llvm-cov convert-for-testing ./main -o ./main.covmapping
+rm main main.raw