Add UT for log level

Author: pzygielo

mq/main/logger/src/test/java/com/sun/messaging/jmq/util/log/SysLogHandlerTest.java

@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2020 Contributors to the Eclipse Foundation
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v. 2.0, which is available at
+ * http://www.eclipse.org/legal/epl-2.0.
+ *
+ * This Source Code may also be made available under the following Secondary
+ * Licenses when the conditions for such availability set forth in the
+ * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
+ * version 2 with the GNU Classpath Exception, which is available at
+ * https://www.gnu.org/software/classpath/license.html.
+ *
+ * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
+ */
+
+package com.sun.messaging.jmq.util.log;
+
+import org.junit.jupiter.api.Nested;
+import org.junit.jupiter.api.Test;
+
+import org.mockito.Mockito;
+
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.ArgumentMatchers.eq;
+
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+class SysLogHandlerTest {
+    @Nested
+    class Issue289 {
+        @Test
+        void testLevelForLibraryErrorLog() {
+            Logger logger = Mockito.mock(Logger.class);
+
+            SysLogHandler.logSharedLibraryError(logger, "Library not found");
+
+            Mockito.verify(logger).log(eq(Level.INFO), anyString());
+        }
+    }
+}