/*
 * 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.
 */

package org.apache.flink.util;

import org.junit.Rule;
import org.junit.rules.TestRule;
import org.junit.rules.TestWatcher;
import org.junit.runner.Description;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Adds automatic test name logging. Every test which wants to log which test is currently
 * executed and why it failed, simply has to extend this class.
 */
public class TestLogger {
	protected final Logger log = LoggerFactory.getLogger(getClass());

	@Rule
	public TestRule watchman = new TestWatcher() {

		@Override
		public void starting(Description description) {
			log.info("================================================================================");
			log.info("Test {} is running.", description);
			log.info("--------------------------------------------------------------------------------");
		}

		@Override
		public void succeeded(Description description) {
			log.info("--------------------------------------------------------------------------------");
			log.info("Test {} successfully run.", description);
			log.info("================================================================================");
		}

		@Override
		public void failed(Throwable e, Description description) {
			log.error("--------------------------------------------------------------------------------");
			log.error("Test {} failed with:\n{}", description, StringUtils.stringifyException(e));
			log.error("================================================================================");
		}
	};
}

@@ -1399,32 +1399,34 @@
  %7B%0A%09%09%09log.info(%22
+%5Cn
 ================
@@ -1490,32 +1490,27 @@
 =======%22
-);
 %0A%09%09%09
-log.info(%22
+%09%09+ %22%5Cn
 Test %7B%7D 
@@ -1525,37 +1525,19 @@
 ng.%22
-, description);%0A%09%09%09log.info(%22
+%0A%09%09%09%09%09+ %22%5Cn
 ----
@@ -1609,24 +1609,43 @@
 -----------%22
+%0A%09%09%09%09%09, description
 );%0A%09%09%7D%0A%0A%09%09@O
@@ -1716,16 +1716,18 @@
 g.info(%22
+%5Cn
 --------
@@ -1799,32 +1799,27 @@
 -------%22
-);
 %0A%09%09%09
-log.info(%22
+%09%09+ %22%5Cn
 Test %7B%7D 
@@ -1840,37 +1840,19 @@
 un.%22
-, description);%0A%09%09%09log.info(%22
+%0A%09%09%09%09%09+ %22%5Cn
 ====
@@ -1924,24 +1924,43 @@
 ===========%22
+%0A%09%09%09%09%09, description
 );%0A%09%09%7D%0A%0A%09%09@O
@@ -2042,16 +2042,18 @@
 .error(%22
+%5Cn
 --------
@@ -2125,33 +2125,28 @@
 -------%22
-);
 %0A%09%09%09
-log.error(%22
+%09%09 + %22%5Cn
 Test %7B%7D 
@@ -2166,73 +2166,20 @@
 n%7B%7D%22
-, description, StringUtils.stringifyException(e));%0A%09%09%09log.error(%22
+%0A%09%09%09%09%09 + %22%5Cn
 ====
@@ -2255,16 +2255,70 @@
 =======%22
+%0A%09%09%09%09%09, description, StringUtils.stringifyException(e)
 );%0A%09%09%7D%0A%09

Use single log statement in TestLogger