CTest: use an output file for Valgrind (#14110)

This makes sure Valgrind output will not screw up tests that match on the
output.

Source/CTest/cmCTestMemCheckHandler.cxx

@@ -491,6 +491,7 @@ bool cmCTestMemCheckHandler::InitializeMemoryChecking()
   switch ( this->MemoryTesterStyle )
     {
     case cmCTestMemCheckHandler::VALGRIND:
+      {
       if ( this->MemoryTesterOptions.empty() )
         {
         this->MemoryTesterOptions.push_back("-q");
@@ -516,7 +517,11 @@ bool cmCTestMemCheckHandler::InitializeMemoryChecking()
           + this->CTest->GetCTestConfiguration("MemoryCheckSuppressionFile");
         this->MemoryTesterOptions.push_back(suppressions);
         }
+      std::string outputFile = "--log-file="
+        + this->MemoryTesterOutputFile;
+      this->MemoryTesterOptions.push_back(outputFile);
       break;
+      }
     case cmCTestMemCheckHandler::PURIFY:
       {
       std::string outputFile;
@@ -948,6 +953,21 @@ cmCTestMemCheckHandler::PostProcessPurifyTest(cmCTestTestResult& res)
   cmCTestLog(this->CTest, HANDLER_VERBOSE_OUTPUT,
              "PostProcessPurifyTest for : "
              << res.Name.c_str() << std::endl);
+  appendMemTesterOutput(res);
+}
+
+void
+cmCTestMemCheckHandler::PostProcessValgrindTest(cmCTestTestResult& res)
+{
+  cmCTestLog(this->CTest, HANDLER_VERBOSE_OUTPUT,
+             "PostProcessValgrindTest for : "
+             << res.Name.c_str() << std::endl);
+  appendMemTesterOutput(res);
+}
+
+void
+cmCTestMemCheckHandler::appendMemTesterOutput(cmCTestTestResult& res)
+{
   if ( !cmSystemTools::FileExists(this->MemoryTesterOutputFile.c_str()) )
     {
     std::string log = "Cannot find memory tester output file: "

Source/CTest/cmCTestMemCheckHandler.h

@@ -119,6 +119,10 @@ private:
 
   void PostProcessPurifyTest(cmCTestTestResult& res);
   void PostProcessBoundsCheckerTest(cmCTestTestResult& res);
+  void PostProcessValgrindTest(cmCTestTestResult& res);
+
+  ///! append MemoryTesterOutputFile to the test log
+  void appendMemTesterOutput(cmCTestTestHandler::cmCTestTestResult& res);
 };
 
 #endif

Source/CTest/cmCTestRunTest.cxx

@@ -384,13 +384,19 @@ void cmCTestRunTest::MemCheckPostProcess()
              << this->TestResult.Name.c_str() << std::endl);
   cmCTestMemCheckHandler * handler = static_cast<cmCTestMemCheckHandler*>
     (this->TestHandler);
-  if(handler->MemoryTesterStyle == cmCTestMemCheckHandler::BOUNDS_CHECKER)
+  switch ( handler->MemoryTesterStyle )
     {
-    handler->PostProcessBoundsCheckerTest(this->TestResult);
-    }
-  else if(handler->MemoryTesterStyle == cmCTestMemCheckHandler::PURIFY)
-    {
-    handler->PostProcessPurifyTest(this->TestResult);
+    case cmCTestMemCheckHandler::VALGRIND:
+      handler->PostProcessValgrindTest(this->TestResult);
+      break;
+    case cmCTestMemCheckHandler::PURIFY:
+      handler->PostProcessPurifyTest(this->TestResult);
+      break;
+    case cmCTestMemCheckHandler::BOUNDS_CHECKER:
+      handler->PostProcessBoundsCheckerTest(this->TestResult);
+      break;
+    default:
+      break;
     }
 }