--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/hotspot/gtest/logging/test_logLevel.cpp	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,54 @@
+/*
+ * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+#include "precompiled.hpp"
+#include "logging/logLevel.hpp"
+#include "unittest.hpp"
+
+TEST(LogLevel, from_string) {
+  LogLevelType level;
+
+  // Verify each name defined in the LOG_LEVEL_LIST
+#define LOG_LEVEL(lname, lstring) \
+  level = LogLevel::from_string(#lstring); \
+  EXPECT_EQ(level, LogLevel::lname);
+  LOG_LEVEL_LIST
+#undef LOG_LEVEL
+
+  // Verify a few invalid level strings
+  EXPECT_EQ(LogLevel::Invalid, LogLevel::from_string("bad level"));
+  EXPECT_EQ(LogLevel::Invalid, LogLevel::from_string("debugger"));
+  EXPECT_EQ(LogLevel::Invalid, LogLevel::from_string("inf"));
+  EXPECT_EQ(LogLevel::Invalid, LogLevel::from_string("info "));
+  EXPECT_EQ(LogLevel::Invalid, LogLevel::from_string("  info"));
+  EXPECT_EQ(LogLevel::Invalid, LogLevel::from_string("=info"));
+  EXPECT_EQ(LogLevel::Invalid, LogLevel::from_string("infodebugwarning"));
+}
+
+TEST(LogLevel, name) {
+  // Use names from macro as reference
+#define LOG_LEVEL(lname, lstring) \
+  EXPECT_STREQ(LogLevel::name(LogLevel::lname), #lstring);
+  LOG_LEVEL_LIST
+#undef LOG_LEVEL
+}