Handling invalid flag values

googlemock/src/gmock-spec-builders.cc

@@ -508,6 +508,13 @@ bool UntypedFunctionMockerBase::VerifyAndClearExpectationsLocked()
   return expectations_met;
 }
 
+CallReaction intToCallReaction(int mock_behavior) {
+  if (mock_behavior >= kAllow && mock_behavior <= kFail) {
+    return static_cast<internal::CallReaction>(mock_behavior);
+  }
+  return kWarn;
+}
+
 }  // namespace internal
 
 // Class Mock.
@@ -648,7 +655,7 @@ internal::CallReaction Mock::GetReactionOnUninterestingCalls(
         GTEST_LOCK_EXCLUDED_(internal::g_gmock_mutex) {
   internal::MutexLock l(&internal::g_gmock_mutex);
   return (g_uninteresting_call_reaction.count(mock_obj) == 0) ?
-      static_cast<internal::CallReaction>(GMOCK_FLAG(default_mock_behavior)) :
+      internal::intToCallReaction(GMOCK_FLAG(default_mock_behavior)) :
       g_uninteresting_call_reaction[mock_obj];
 }
 

googlemock/test/gmock-spec-builders_test.cc

@@ -722,6 +722,26 @@ TEST(ExpectCallSyntaxTest, WarningIsErrorWithFlag) {
     a.DoA(0);
   },"Uninteresting mock function call");
 
+  // Out of bounds values are converted to kWarn
+  testing::GMOCK_FLAG(default_mock_behavior) = -1;
+  CaptureStdout();
+  {
+    MockA a;
+    a.DoA(0);
+  }
+  warning_output = GetCapturedStdout();
+  EXPECT_PRED_FORMAT2(IsSubstring, "GMOCK WARNING", warning_output);
+  EXPECT_PRED_FORMAT2(IsSubstring, "Uninteresting mock function call", warning_output);
+  testing::GMOCK_FLAG(default_mock_behavior) = 3;
+  CaptureStdout();
+  {
+    MockA a;
+    a.DoA(0);
+  }
+  warning_output = GetCapturedStdout();
+  EXPECT_PRED_FORMAT2(IsSubstring, "GMOCK WARNING", warning_output);
+  EXPECT_PRED_FORMAT2(IsSubstring, "Uninteresting mock function call", warning_output);
+
   testing::GMOCK_FLAG(default_mock_behavior) = original_behavior;
 }