add test to verify outputstream resets

src/test/cpp/helpers/messagebuffertest.cpp

@@ -21,6 +21,9 @@
 #include "../logunit.h"
 #include <log4cxx/logstring.h>
 #include <log4cxx/helpers/loglog.h>
+#include <log4cxx/logger.h>
+#include <log4cxx/propertyconfigurator.h>
+#include "util/compare.h"
 
 #if LOG4CXX_CFSTRING_API
 	#include <CoreFoundation/CFString.h>
@@ -42,6 +45,7 @@ LOGUNIT_CLASS(MessageBufferTest)
 	LOGUNIT_TEST(testInsertNull);
 	LOGUNIT_TEST(testInsertInt);
 	LOGUNIT_TEST(testInsertManipulator);
+	LOGUNIT_TEST(testBaseChange);
 #if LOG4CXX_WCHAR_T_API
 	LOGUNIT_TEST(testInsertConstWStr);
 	LOGUNIT_TEST(testInsertWString);
@@ -136,6 +140,30 @@ LOGUNIT_CLASS(MessageBufferTest)
 		LOGUNIT_ASSERT_EQUAL(true, buf.hasStream());
 	}
 
+	void testBaseChange()
+	{
+		LoggerPtr root;
+		LoggerPtr logger;
+
+		root = Logger::getRootLogger();
+		logger = Logger::getLogger(LOG4CXX_STR("java.org.apache.log4j.PatternLayoutTest"));
+
+		PropertyConfigurator::configure(LOG4CXX_FILE("input/messagebuffer1.properties"));
+
+		int num = 220;
+		LOG4CXX_INFO(logger, "number in hex: " << std::hex << num);
+		LOG4CXX_INFO(logger, "number in dec: " << num);
+
+		LOGUNIT_ASSERT(Compare::compare(LOG4CXX_STR("output/messagebuffer"), LOG4CXX_FILE("witness/messagebuffer.1")));
+
+		auto rep = root->getLoggerRepository();
+
+		if (rep)
+		{
+			rep->resetConfiguration();
+		}
+	}
+
 #if LOG4CXX_WCHAR_T_API
 	void testInsertConstWStr()
 	{

src/test/resources/input/messagebuffer1.properties

@@ -0,0 +1,21 @@
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+log4j.rootCategory=DEBUG, testAppender
+log4j.appender.testAppender=org.apache.log4j.FileAppender
+log4j.appender.testAppender.file=output/messagebuffer
+log4j.appender.testAppender.Append=false
+log4j.appender.testAppender.layout=org.apache.log4j.PatternLayout
+log4j.appender.testAppender.layout.ConversionPattern=%-5p - %m%n

src/test/resources/witness/messagebuffer.1

@@ -0,0 +1,2 @@
+INFO  - number in hex: dc
+INFO  - number in dec: 220