[PATCH] D22692: [utils] Test the code coverage regression-checking script

[Vedant Kumar via llvm-commits]

vsk created this revision.
vsk added reviewers: MaggieYi, silvas, ikudrin.
vsk added a subscriber: llvm-commits.

Make sure that it can parse `llvm-cov report` output, so that the script doesn't break when we update llvm-cov.

https://reviews.llvm.org/D22692

Files:
  test/tools/llvm-cov/report.cpp

Index: test/tools/llvm-cov/report.cpp
===================================================================
--- test/tools/llvm-cov/report.cpp
+++ test/tools/llvm-cov/report.cpp
@@ -1,4 +1,5 @@
-// RUN: llvm-cov report %S/Inputs/report.covmapping -instr-profile %S/Inputs/report.profdata -filename-equivalence 2>&1 | FileCheck %s
+// RUN: llvm-cov report %S/Inputs/report.covmapping -instr-profile %S/Inputs/report.profdata -filename-equivalence > %t.report.txt
+// RUN: FileCheck %s -input-file=%t.report.txt
 // RUN: llvm-cov report %S/Inputs/report.covmapping -instr-profile %S/Inputs/report.profdata -filename-equivalence report.cpp 2>&1 | FileCheck -check-prefix=FILT-NEXT %s
 
 // CHECK:      Filename   Regions    Missed Regions     Cover   Functions  Missed Functions  Executed       Lines      Missed Lines     Cover
@@ -40,3 +41,6 @@
 // FUNCTIONS: _Z3foob
 // FUNCTIONS: _Z3barv
 // FUNCTIONS: _Z4func
+
+// Test whether the coverage regression checking script can parse `report` output.
+// RUN: %python $LLVM_SRC_ROOT/utils/check-coverage-regressions.py %t.report.txt %t.report.txt | count 0


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