1 files changed, 7 insertions, 0 deletions
diff --git a/ipc/glue/ProtocolUtils.h b/ipc/glue/ProtocolUtils.h
index 2a0c64de20..7edce9612b 100644
--- a/ipc/glue/ProtocolUtils.h
+++ b/ipc/glue/ProtocolUtils.h
@@ -341,6 +341,9 @@ class IProtocol : public HasResultCodes {
   mozilla::ipc::IPCResult::FailUnsafePrintfImpl(   \
       WrapNotNull(actor), __func__, nsPrintfCString(format, ##__VA_ARGS__))
 
+#define IPC_TEST_FAIL(actor) \
+  mozilla::ipc::IPCResult::FailForTesting(WrapNotNull(actor), __func__, "")
+
 /**
  * All message deserializers and message handlers should return this type via
  * the above macros. We use a less generic name here to avoid conflict with
@@ -379,6 +382,10 @@ class IPCResult {
     return FailImpl(aActor, aWhere, aWhy.get());
   }
 
+  // Only used in testing.
+  static IPCResult FailForTesting(NotNull<IProtocol*> aActor,
+                                  const char* aWhere, const char* aWhy);
+
  private:
   static IPCResult FailImpl(NotNull<IProtocol*> aActor, const char* aWhere,
                             const char* aWhy);