1 files changed, 56 insertions, 0 deletions
diff --git a/ipc/gtest/TestLogging.cpp b/ipc/gtest/TestLogging.cpp
new file mode 100644
index 0000000000..ef9c063096
--- /dev/null
+++ b/ipc/gtest/TestLogging.cpp
@@ -0,0 +1,56 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "gtest/gtest.h"
+
+#include "mozilla/ipc/ProtocolUtils.h"
+
+namespace mozilla::ipc {
+
+#if defined(DEBUG) || defined(FUZZING)
+TEST(IPCLogging, EmptyFilter)
+{
+  const char* emptyFilter = "";
+  EXPECT_FALSE(LoggingEnabledFor("PContentParent", emptyFilter));
+  EXPECT_FALSE(LoggingEnabledFor("PContentChild", emptyFilter));
+}
+
+TEST(IPCLogging, SingleProtocolFilter)
+{
+  const char* contentParentFilter = "PContentParent";
+  EXPECT_TRUE(LoggingEnabledFor("PContentParent", contentParentFilter));
+  EXPECT_FALSE(LoggingEnabledFor("PContentChild", contentParentFilter));
+}
+
+TEST(IPCLogging, CommaDelimitedProtocolsFilter)
+{
+  const char* gmpContentFilter = "PGMPContentChild,PGMPContentParent";
+  EXPECT_TRUE(LoggingEnabledFor("PGMPContentChild", gmpContentFilter));
+  EXPECT_TRUE(LoggingEnabledFor("PGMPContentParent", gmpContentFilter));
+  EXPECT_FALSE(LoggingEnabledFor("PContentParent", gmpContentFilter));
+  EXPECT_FALSE(LoggingEnabledFor("PContentChild", gmpContentFilter));
+}
+
+TEST(IPCLogging, SpaceDelimitedProtocolsFilter)
+{
+  const char* gmpContentFilter = "PGMPContentChild PGMPContentParent";
+  EXPECT_TRUE(LoggingEnabledFor("PGMPContentChild", gmpContentFilter));
+  EXPECT_TRUE(LoggingEnabledFor("PGMPContentParent", gmpContentFilter));
+  EXPECT_FALSE(LoggingEnabledFor("PContentParent", gmpContentFilter));
+  EXPECT_FALSE(LoggingEnabledFor("PContentChild", gmpContentFilter));
+}
+
+TEST(IPCLogging, CatchAllFilter)
+{
+  const char* catchAllFilter = "1";
+  EXPECT_TRUE(LoggingEnabledFor("PGMPContentChild", catchAllFilter));
+  EXPECT_TRUE(LoggingEnabledFor("PGMPContentParent", catchAllFilter));
+  EXPECT_TRUE(LoggingEnabledFor("PContentParent", catchAllFilter));
+  EXPECT_TRUE(LoggingEnabledFor("PContentChild", catchAllFilter));
+}
+#endif  // defined(DEBUG) || defined(FUZZING)
+
+}  // namespace mozilla::ipc